Merge branch 'for-linus' into for-next

Merging the HD-audio fixes back to base devel branch for further
working on it.

Documentation/CodeOfConflict

@@ -0,0 +1,27 @@
+Code of Conflict
+----------------
+
+The Linux kernel development effort is a very personal process compared
+to "traditional" ways of developing software.  Your code and ideas
+behind it will be carefully reviewed, often resulting in critique and
+criticism.  The review will almost always require improvements to the
+code before it can be included in the kernel.  Know that this happens
+because everyone involved wants to see the best possible solution for
+the overall success of Linux.  This development process has been proven
+to create the most robust operating system kernel ever, and we do not
+want to do anything to cause the quality of submission and eventual
+result to ever decrease.
+
+If however, anyone feels personally abused, threatened, or otherwise
+uncomfortable due to this process, that is not acceptable.  If so,
+please contact the Linux Foundation's Technical Advisory Board at
+<tab@lists.linux-foundation.org>, or the individual members, and they
+will work to resolve the issue to the best of their ability.  For more
+information on who is on the Technical Advisory Board and what their
+role is, please see:
+	http://www.linuxfoundation.org/programs/advisory-councils/tab
+
+As a reviewer of code, please strive to keep things civil and focused on
+the technical issues involved.  We are all humans, and frustrations can
+be high on both sides of the process.  Try to keep in mind the immortal
+words of Bill and Ted, "Be excellent to each other."

Documentation/devicetree/bindings/i2c/i2c-imx.txt

@@ -7,6 +7,7 @@ Required properties:
   - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC
 - reg : Should contain I2C/HS-I2C registers location and length
 - interrupts : Should contain I2C/HS-I2C interrupt
+- clocks : Should contain the I2C/HS-I2C clock specifier
 
 Optional properties:
 - clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.

Documentation/devicetree/bindings/net/amd-xgbe-phy.txt

@@ -27,6 +27,8 @@ property is used.
 - amd,serdes-cdr-rate: CDR rate speed selection
 - amd,serdes-pq-skew: PQ (data sampling) skew
 - amd,serdes-tx-amp: TX amplitude boost
+- amd,serdes-dfe-tap-config: DFE taps available to run
+- amd,serdes-dfe-tap-enable: DFE taps to enable
 
 Example:
 	xgbe_phy@e1240800 {
@@ -41,4 +43,6 @@ Example:
 		amd,serdes-cdr-rate = <2>, <2>, <7>;
 		amd,serdes-pq-skew = <10>, <10>, <30>;
 		amd,serdes-tx-amp = <15>, <15>, <10>;
+		amd,serdes-dfe-tap-config = <3>, <3>, <1>;
+		amd,serdes-dfe-tap-enable = <0>, <0>, <127>;
 	};

Documentation/devicetree/bindings/serial/snps-dw-apb-uart.txt

@@ -21,6 +21,18 @@ Optional properties:
 - reg-io-width : the size (in bytes) of the IO accesses that should be
   performed on the device.  If this property is not present then single byte
   accesses are used.
+- dcd-override : Override the DCD modem status signal. This signal will always
+  be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin.
+- dsr-override : Override the DTS modem status signal. This signal will always
+  be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin.
+- cts-override : Override the CTS modem status signal. This signal will always
+  be reported as active instead of being obtained from the modem status
+  register. Define this if your serial port does not use this pin.
+- ri-override : Override the RI modem status signal. This signal will always be
+  reported as inactive instead of being obtained from the modem status register.
+  Define this if your serial port does not use this pin.
 
 Example:
 
@@ -31,6 +43,10 @@ Example:
 		interrupts = <10>;
 		reg-shift = <2>;
 		reg-io-width = <4>;
+		dcd-override;
+		dsr-override;
+		cts-override;
+		ri-override;
 	};
 
 Example with one clock:

Documentation/power/suspend-and-interrupts.txt

@@ -40,8 +40,10 @@ but also to IPIs and to some other special-purpose interrupts.
 
 The IRQF_NO_SUSPEND flag is used to indicate that to the IRQ subsystem when
 requesting a special-purpose interrupt.  It causes suspend_device_irqs() to
-leave the corresponding IRQ enabled so as to allow the interrupt to work all
-the time as expected.
+leave the corresponding IRQ enabled so as to allow the interrupt to work as
+expected during the suspend-resume cycle, but does not guarantee that the
+interrupt will wake the system from a suspended state -- for such cases it is
+necessary to use enable_irq_wake().
 
 Note that the IRQF_NO_SUSPEND flag affects the entire IRQ and not just one
 user of it.  Thus, if the IRQ is shared, all of the interrupt handlers installed
@@ -110,8 +112,9 @@ any special interrupt handling logic for it to work.
 IRQF_NO_SUSPEND and enable_irq_wake()
 -------------------------------------
 
-There are no valid reasons to use both enable_irq_wake() and the IRQF_NO_SUSPEND
-flag on the same IRQ.
+There are very few valid reasons to use both enable_irq_wake() and the
+IRQF_NO_SUSPEND flag on the same IRQ, and it is never valid to use both for the
+same device.
 
 First of all, if the IRQ is not shared, the rules for handling IRQF_NO_SUSPEND
 interrupts (interrupt handlers are invoked after suspend_device_irqs()) are
@@ -120,4 +123,13 @@ handlers are not invoked after suspend_device_irqs()).
 
 Second, both enable_irq_wake() and IRQF_NO_SUSPEND apply to entire IRQs and not
 to individual interrupt handlers, so sharing an IRQ between a system wakeup
-interrupt source and an IRQF_NO_SUSPEND interrupt source does not make sense.
+interrupt source and an IRQF_NO_SUSPEND interrupt source does not generally
+make sense.
+
+In rare cases an IRQ can be shared between a wakeup device driver and an
+IRQF_NO_SUSPEND user. In order for this to be safe, the wakeup device driver
+must be able to discern spurious IRQs from genuine wakeup events (signalling
+the latter to the core with pm_system_wakeup()), must use enable_irq_wake() to
+ensure that the IRQ will function as a wakeup source, and must request the IRQ
+with IRQF_COND_SUSPEND to tell the core that it meets these requirements. If
+these requirements are not met, it is not valid to use IRQF_COND_SUSPEND.

MAINTAINERS

@@ -2065,7 +2065,7 @@ F:	include/net/bluetooth/
 BONDING DRIVER
 M:	Jay Vosburgh <j.vosburgh@gmail.com>
 M:	Veaceslav Falico <vfalico@gmail.com>
-M:	Andy Gospodarek <andy@greyhouse.net>
+M:	Andy Gospodarek <gospo@cumulusnetworks.com>
 L:	netdev@vger.kernel.org
 W:	http://sourceforge.net/projects/bonding/
 S:	Supported
@@ -8480,6 +8480,14 @@ S:	Supported
 L:	netdev@vger.kernel.org
 F:	drivers/net/ethernet/samsung/sxgbe/
 
+SAMSUNG THERMAL DRIVER
+M:	Lukasz Majewski <l.majewski@samsung.com>
+L:	linux-pm@vger.kernel.org
+L:	linux-samsung-soc@vger.kernel.org
+S:	Supported
+T:	https://github.com/lmajewski/linux-samsung-thermal.git
+F:	drivers/thermal/samsung/
+
 SAMSUNG USB2 PHY DRIVER
 M:	Kamil Debski <k.debski@samsung.com>
 L:	linux-kernel@vger.kernel.org

Makefile

@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 0
 SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc3
 NAME = Hurr durr I'ma sheep
 
 # *DOCUMENTATION*

arch/arc/include/asm/processor.h

@@ -47,9 +47,6 @@ struct thread_struct {
 /* Forward declaration, a strange C thing */
 struct task_struct;
 
-/* Return saved PC of a blocked thread  */
-unsigned long thread_saved_pc(struct task_struct *t);
-
 #define task_pt_regs(p) \
 	((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1)
 
@@ -72,18 +69,21 @@ unsigned long thread_saved_pc(struct task_struct *t);
 #define release_segments(mm)        do { } while (0)
 
 #define KSTK_EIP(tsk)   (task_pt_regs(tsk)->ret)
+#define KSTK_ESP(tsk)   (task_pt_regs(tsk)->sp)
 
 /*
  * Where abouts of Task's sp, fp, blink when it was last seen in kernel mode.
  * Look in process.c for details of kernel stack layout
  */
-#define KSTK_ESP(tsk)   (tsk->thread.ksp)
+#define TSK_K_ESP(tsk)		(tsk->thread.ksp)
 
-#define KSTK_REG(tsk, off)	(*((unsigned int *)(KSTK_ESP(tsk) + \
+#define TSK_K_REG(tsk, off)	(*((unsigned int *)(TSK_K_ESP(tsk) + \
 					sizeof(struct callee_regs) + off)))
 
-#define KSTK_BLINK(tsk) KSTK_REG(tsk, 4)
-#define KSTK_FP(tsk)    KSTK_REG(tsk, 0)
+#define TSK_K_BLINK(tsk)	TSK_K_REG(tsk, 4)
+#define TSK_K_FP(tsk)		TSK_K_REG(tsk, 0)
+
+#define thread_saved_pc(tsk)	TSK_K_BLINK(tsk)
 
 extern void start_thread(struct pt_regs * regs, unsigned long pc,
 			 unsigned long usp);

arch/arc/include/asm/stacktrace.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
+ * Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_STACKTRACE_H
+#define __ASM_STACKTRACE_H
+
+#include <linux/sched.h>
+
+/**
+ * arc_unwind_core - Unwind the kernel mode stack for an execution context
+ * @tsk:		NULL for current task, specific task otherwise
+ * @regs:		pt_regs used to seed the unwinder {SP, FP, BLINK, PC}
+ * 			If NULL, use pt_regs of @tsk (if !NULL) otherwise
+ * 			use the current values of {SP, FP, BLINK, PC}
+ * @consumer_fn:	Callback invoked for each frame unwound
+ * 			Returns 0 to continue unwinding, -1 to stop
+ * @arg:		Arg to callback
+ *
+ * Returns the address of first function in stack
+ *
+ * Semantics:
+ *  - synchronous unwinding (e.g. dump_stack): @tsk  NULL, @regs  NULL
+ *  - Asynchronous unwinding of sleeping task: @tsk !NULL, @regs  NULL
+ *  - Asynchronous unwinding of intr/excp etc: @tsk !NULL, @regs !NULL
+ */
+notrace noinline unsigned int arc_unwind_core(
+	struct task_struct *tsk, struct pt_regs *regs,
+	int (*consumer_fn) (unsigned int, void *),
+	void *arg);
+
+#endif /* __ASM_STACKTRACE_H */

arch/arc/kernel/process.c

@@ -192,29 +192,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 	return 0;
 }
 
-/*
- * API: expected by schedular Code: If thread is sleeping where is that.
- * What is this good for? it will be always the scheduler or ret_from_fork.
- * So we hard code that anyways.
- */
-unsigned long thread_saved_pc(struct task_struct *t)
-{
-	struct pt_regs *regs = task_pt_regs(t);
-	unsigned long blink = 0;
-
-	/*
-	 * If the thread being queried for in not itself calling this, then it
-	 * implies it is not executing, which in turn implies it is sleeping,
-	 * which in turn implies it got switched OUT by the schedular.
-	 * In that case, it's kernel mode blink can reliably retrieved as per
-	 * the picture above (right above pt_regs).
-	 */
-	if (t != current && t->state != TASK_RUNNING)
-		blink = *((unsigned int *)regs - 1);
-
-	return blink;
-}
-
 int elf_check_arch(const struct elf32_hdr *x)
 {
 	unsigned int eflags;

arch/arc/kernel/stacktrace.c

@@ -43,6 +43,10 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 				   struct pt_regs *regs,
 				   struct unwind_frame_info *frame_info)
 {
+	/*
+	 * synchronous unwinding (e.g. dump_stack)
+	 *  - uses current values of SP and friends
+	 */
 	if (tsk == NULL && regs == NULL) {
 		unsigned long fp, sp, blink, ret;
 		frame_info->task = current;
@@ -61,12 +65,17 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 		frame_info->regs.r63 = ret;
 		frame_info->call_frame = 0;
 	} else if (regs == NULL) {
+		/*
+		 * Asynchronous unwinding of sleeping task
+		 *  - Gets SP etc from task's pt_regs (saved bottom of kernel
+		 *    mode stack of task)
+		 */
 
 		frame_info->task = tsk;
 
-		frame_info->regs.r27 = KSTK_FP(tsk);
-		frame_info->regs.r28 = KSTK_ESP(tsk);
-		frame_info->regs.r31 = KSTK_BLINK(tsk);
+		frame_info->regs.r27 = TSK_K_FP(tsk);
+		frame_info->regs.r28 = TSK_K_ESP(tsk);
+		frame_info->regs.r31 = TSK_K_BLINK(tsk);
 		frame_info->regs.r63 = (unsigned int)__switch_to;
 
 		/* In the prologue of __switch_to, first FP is saved on stack
@@ -83,6 +92,10 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 		frame_info->call_frame = 0;
 
 	} else {
+		/*
+		 * Asynchronous unwinding of intr/exception
+		 *  - Just uses the pt_regs passed
+		 */
 		frame_info->task = tsk;
 
 		frame_info->regs.r27 = regs->fp;
@@ -95,7 +108,7 @@ static void seed_unwind_frame_info(struct task_struct *tsk,
 
 #endif
 
-static noinline unsigned int
+notrace noinline unsigned int
 arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs,
 		int (*consumer_fn) (unsigned int, void *), void *arg)
 {

arch/arc/kernel/unaligned.c

@@ -12,6 +12,7 @@
  */
 
 #include <linux/types.h>
+#include <linux/perf_event.h>
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <asm/disasm.h>
@@ -253,6 +254,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
 		}
 	}
 
+	perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, address);
 	return 0;
 
 fault:

arch/arc/mm/fault.c

@@ -14,6 +14,7 @@
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
+#include <linux/perf_event.h>
 #include <asm/pgalloc.h>
 #include <asm/mmu.h>
 
@@ -139,13 +140,20 @@ good_area:
 			return;
 	}
 
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
+
 	if (likely(!(fault & VM_FAULT_ERROR))) {
 		if (flags & FAULT_FLAG_ALLOW_RETRY) {
 			/* To avoid updating stats twice for retry case */
-			if (fault & VM_FAULT_MAJOR)
+			if (fault & VM_FAULT_MAJOR) {
 				tsk->maj_flt++;
-			else
+				perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,
+					      regs, address);
+			} else {
 				tsk->min_flt++;
+				perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1,
+					      regs, address);
+			}
 
 			if (fault & VM_FAULT_RETRY) {
 				flags &= ~FAULT_FLAG_ALLOW_RETRY;

arch/arm/include/asm/kvm_mmu.h

@@ -207,7 +207,7 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, pfn_t pfn,
 
 	bool need_flush = !vcpu_has_cache_enabled(vcpu) || ipa_uncached;
 
-	VM_BUG_ON(size & PAGE_MASK);
+	VM_BUG_ON(size & ~PAGE_MASK);
 
 	if (!need_flush && !icache_is_pipt())
 		goto vipt_cache;

arch/arm/kvm/arm.c

@@ -540,7 +540,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 
 		vcpu->mode = OUTSIDE_GUEST_MODE;
 		kvm_guest_exit();
-		trace_kvm_exit(*vcpu_pc(vcpu));
+		trace_kvm_exit(kvm_vcpu_trap_get_class(vcpu), *vcpu_pc(vcpu));
 		/*
 		 * We may have taken a host interrupt in HYP mode (ie
 		 * while executing the guest). This interrupt is still

arch/arm/kvm/trace.h

@@ -25,18 +25,22 @@ TRACE_EVENT(kvm_entry,
 );
 
 TRACE_EVENT(kvm_exit,
-	TP_PROTO(unsigned long vcpu_pc),
-	TP_ARGS(vcpu_pc),
+	TP_PROTO(unsigned int exit_reason, unsigned long vcpu_pc),
+	TP_ARGS(exit_reason, vcpu_pc),
 
 	TP_STRUCT__entry(
+		__field(	unsigned int,	exit_reason	)
 		__field(	unsigned long,	vcpu_pc		)
 	),
 
 	TP_fast_assign(
+		__entry->exit_reason		= exit_reason;
 		__entry->vcpu_pc		= vcpu_pc;
 	),
 
-	TP_printk("PC: 0x%08lx", __entry->vcpu_pc)
+	TP_printk("HSR_EC: 0x%04x, PC: 0x%08lx",
+		  __entry->exit_reason,
+		  __entry->vcpu_pc)
 );
 
 TRACE_EVENT(kvm_guest_fault,

arch/arm/mach-msm/board-halibut.c

@@ -20,6 +20,7 @@
 #include <linux/input.h>
 #include <linux/io.h>
 #include <linux/delay.h>
+#include <linux/smc91x.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -46,15 +47,20 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= MSM_GPIO_TO_INT(49),
 		.end	= MSM_GPIO_TO_INT(49),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 	},
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static struct platform_device *devices[] __initdata = {

arch/arm/mach-msm/board-qsd8x50.c

@@ -22,6 +22,7 @@
 #include <linux/usb/msm_hsusb.h>
 #include <linux/err.h>
 #include <linux/clkdev.h>
+#include <linux/smc91x.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -49,15 +50,20 @@ static struct resource smc91x_resources[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.flags = IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
 	},
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name           = "smc91x",
 	.id             = 0,
 	.num_resources  = ARRAY_SIZE(smc91x_resources),
 	.resource       = smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static int __init msm_init_smc91x(void)

arch/arm/mach-pxa/idp.c

@@ -81,11 +81,16 @@ static struct resource smc91x_resources[] = {
 	}
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_32BIT | SMC91X_USE_DMA | SMC91X_NOWAIT,
+};
+
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static void idp_backlight_power(int on)

arch/arm/mach-pxa/lpd270.c

@@ -24,6 +24,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/pwm_backlight.h>
+#include <linux/smc91x.h>
 
 #include <asm/types.h>
 #include <asm/setup.h>
@@ -189,15 +190,20 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= LPD270_ETHERNET_IRQ,
 		.end	= LPD270_ETHERNET_IRQ,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
+struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT;
+};
+
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev.platform_data = &smc91x_platdata,
 };
 
 static struct resource lpd270_flash_resources[] = {

arch/arm/mach-realview/core.c

@@ -28,6 +28,7 @@
 #include <linux/platform_data/video-clcd-versatile.h>
 #include <linux/io.h>
 #include <linux/smsc911x.h>
+#include <linux/smc91x.h>
 #include <linux/ata_platform.h>
 #include <linux/amba/mmci.h>
 #include <linux/gfp.h>
@@ -94,6 +95,10 @@ static struct smsc911x_platform_config smsc911x_config = {
 	.phy_interface	= PHY_INTERFACE_MODE_MII,
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
+};
+
 static struct platform_device realview_eth_device = {
 	.name		= "smsc911x",
 	.id		= 0,
@@ -107,6 +112,8 @@ int realview_eth_register(const char *name, struct resource *res)
 	realview_eth_device.resource = res;
 	if (strcmp(realview_eth_device.name, "smsc911x") == 0)
 		realview_eth_device.dev.platform_data = &smsc911x_config;
+	else
+		realview_eth_device.dev.platform_data = &smc91x_platdata;
 
 	return platform_device_register(&realview_eth_device);
 }

arch/arm/mach-realview/realview_eb.c

@@ -234,7 +234,7 @@ static struct resource realview_eb_eth_resources[] = {
 	[1] = {
 		.start		= IRQ_EB_ETH,
 		.end		= IRQ_EB_ETH,
-		.flags		= IORESOURCE_IRQ,
+		.flags		= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-sa1100/neponset.c

@@ -12,6 +12,7 @@
 #include <linux/pm.h>
 #include <linux/serial_core.h>
 #include <linux/slab.h>
+#include <linux/smc91x.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -258,12 +259,17 @@ static int neponset_probe(struct platform_device *dev)
 			0x02000000, "smc91x-attrib"),
 		{ .flags = IORESOURCE_IRQ },
 	};
+	struct smc91x_platdata smc91x_platdata = {
+		.flags = SMC91X_USE_8BIT | SMC91X_IO_SHIFT_2 | SMC91X_NOWAIT,
+	};
 	struct platform_device_info smc91x_devinfo = {
 		.parent = &dev->dev,
 		.name = "smc91x",
 		.id = 0,
 		.res = smc91x_resources,
 		.num_res = ARRAY_SIZE(smc91x_resources),
+		.data = &smc91c_platdata,
+		.size_data = sizeof(smc91c_platdata),
 	};
 	int ret, irq;
 

arch/arm/mach-sa1100/pleb.c

@@ -11,6 +11,7 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/mtd/partitions.h>
+#include <linux/smc91x.h>
 
 #include <mach/hardware.h>
 #include <asm/setup.h>
@@ -43,12 +44,18 @@ static struct resource smc91x_resources[] = {
 #endif
 };
 
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
 
 static struct platform_device smc91x_device = {
 	.name		= "smc91x",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(smc91x_resources),
 	.resource	= smc91x_resources,
+	.dev = {
+		.platform_data  = &smc91c_platdata,
+	},
 };
 
 static struct platform_device *devices[] __initdata = {

arch/arm64/mm/pageattr.c

@@ -51,7 +51,10 @@ static int change_memory_common(unsigned long addr, int numpages,
 		WARN_ON_ONCE(1);
 	}
 
-	if (!is_module_address(start) || !is_module_address(end - 1))
+	if (start < MODULES_VADDR || start >= MODULES_END)
+		return -EINVAL;
+
+	if (end < MODULES_VADDR || end >= MODULES_END)
 		return -EINVAL;
 
 	data.set_mask = set_mask;

arch/mips/kvm/tlb.c

@@ -216,6 +216,7 @@ int kvm_mips_host_tlb_write(struct kvm_vcpu *vcpu, unsigned long entryhi,
 	if (idx > current_cpu_data.tlbsize) {
 		kvm_err("%s: Invalid Index: %d\n", __func__, idx);
 		kvm_mips_dump_host_tlbs();
+		local_irq_restore(flags);
 		return -1;
 	}
 

arch/mips/kvm/trace.h

@@ -24,18 +24,18 @@ TRACE_EVENT(kvm_exit,
 	    TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason),
 	    TP_ARGS(vcpu, reason),
 	    TP_STRUCT__entry(
-			__field(struct kvm_vcpu *, vcpu)
+			__field(unsigned long, pc)
 			__field(unsigned int, reason)
 	    ),
 
 	    TP_fast_assign(
-			__entry->vcpu = vcpu;
+			__entry->pc = vcpu->arch.pc;
 			__entry->reason = reason;
 	    ),
 
 	    TP_printk("[%s]PC: 0x%08lx",
 		      kvm_mips_exit_types_str[__entry->reason],
-		      __entry->vcpu->arch.pc)
+		      __entry->pc)
 );
 
 #endif /* _TRACE_KVM_H */

arch/powerpc/include/asm/iommu.h

@@ -113,6 +113,7 @@ extern void iommu_register_group(struct iommu_table *tbl,
 				 int pci_domain_number, unsigned long pe_num);
 extern int iommu_add_device(struct device *dev);
 extern void iommu_del_device(struct device *dev);
+extern int __init tce_iommu_bus_notifier_init(void);
 #else
 static inline void iommu_register_group(struct iommu_table *tbl,
 					int pci_domain_number,
@@ -128,6 +129,11 @@ static inline int iommu_add_device(struct device *dev)
 static inline void iommu_del_device(struct device *dev)
 {
 }
+
+static inline int __init tce_iommu_bus_notifier_init(void)
+{
+        return 0;
+}
 #endif /* !CONFIG_IOMMU_API */
 
 static inline void set_iommu_table_base_and_group(struct device *dev,

arch/powerpc/include/asm/irq_work.h

@@ -0,0 +1,9 @@
+#ifndef _ASM_POWERPC_IRQ_WORK_H
+#define _ASM_POWERPC_IRQ_WORK_H
+
+static inline bool arch_irq_work_has_interrupt(void)
+{
+	return true;
+}
+
+#endif /* _ASM_POWERPC_IRQ_WORK_H */

arch/powerpc/kernel/iommu.c

@@ -1175,4 +1175,30 @@ void iommu_del_device(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(iommu_del_device);
 
+static int tce_iommu_bus_notifier(struct notifier_block *nb,
+                unsigned long action, void *data)
+{
+        struct device *dev = data;
+
+        switch (action) {
+        case BUS_NOTIFY_ADD_DEVICE:
+                return iommu_add_device(dev);
+        case BUS_NOTIFY_DEL_DEVICE:
+                if (dev->iommu_group)
+                        iommu_del_device(dev);
+                return 0;
+        default:
+                return 0;
+        }
+}
+
+static struct notifier_block tce_iommu_bus_nb = {
+        .notifier_call = tce_iommu_bus_notifier,
+};
+
+int __init tce_iommu_bus_notifier_init(void)
+{
+        bus_register_notifier(&pci_bus_type, &tce_iommu_bus_nb);
+        return 0;
+}
 #endif /* CONFIG_IOMMU_API */

arch/powerpc/kernel/smp.c

@@ -541,8 +541,8 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 	if (smp_ops->give_timebase)
 		smp_ops->give_timebase();
 
-	/* Wait until cpu puts itself in the online map */
-	while (!cpu_online(cpu))
+	/* Wait until cpu puts itself in the online & active maps */
+	while (!cpu_online(cpu) || !cpu_active(cpu))
 		cpu_relax();
 
 	return 0;

arch/powerpc/platforms/powernv/pci.c

@@ -836,30 +836,4 @@ void __init pnv_pci_init(void)
 #endif
 }
 
-static int tce_iommu_bus_notifier(struct notifier_block *nb,
-		unsigned long action, void *data)
-{
-	struct device *dev = data;
-
-	switch (action) {
-	case BUS_NOTIFY_ADD_DEVICE:
-		return iommu_add_device(dev);
-	case BUS_NOTIFY_DEL_DEVICE:
-		if (dev->iommu_group)
-			iommu_del_device(dev);
-		return 0;
-	default:
-		return 0;
-	}
-}
-
-static struct notifier_block tce_iommu_bus_nb = {
-	.notifier_call = tce_iommu_bus_notifier,
-};
-
-static int __init tce_iommu_bus_notifier_init(void)
-{
-	bus_register_notifier(&pci_bus_type, &tce_iommu_bus_nb);
-	return 0;
-}
 machine_subsys_initcall_sync(powernv, tce_iommu_bus_notifier_init);

arch/powerpc/platforms/pseries/iommu.c

@@ -1340,3 +1340,5 @@ static int __init disable_multitce(char *str)
 }
 
 __setup("multitce=", disable_multitce);
+
+machine_subsys_initcall_sync(pseries, tce_iommu_bus_notifier_init);

arch/x86/Kconfig

@@ -499,6 +499,7 @@ config X86_INTEL_QUARK
 	depends on X86_IO_APIC
 	select IOSF_MBI
 	select INTEL_IMR
+	select COMMON_CLK
 	---help---
 	  Select to include support for Quark X1000 SoC.
 	  Say Y here if you have a Quark based system such as the Arduino

arch/x86/include/asm/xsave.h

@@ -82,18 +82,15 @@ static inline int xsave_state_booting(struct xsave_struct *fx, u64 mask)
 	if (boot_cpu_has(X86_FEATURE_XSAVES))
 		asm volatile("1:"XSAVES"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
 	else
 		asm volatile("1:"XSAVE"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
-
-	asm volatile(xstate_fault
-		     : "0" (0)
-		     : "memory");
-
 	return err;
 }
 
@@ -112,18 +109,15 @@ static inline int xrstor_state_booting(struct xsave_struct *fx, u64 mask)
 	if (boot_cpu_has(X86_FEATURE_XSAVES))
 		asm volatile("1:"XRSTORS"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
 	else
 		asm volatile("1:"XRSTOR"\n\t"
 			"2:\n\t"
-			: : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
+			     xstate_fault
+			: "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 			:   "memory");
-
-	asm volatile(xstate_fault
-		     : "0" (0)
-		     : "memory");
-
 	return err;
 }
 
@@ -149,9 +143,9 @@ static inline int xsave_state(struct xsave_struct *fx, u64 mask)
 	 */
 	alternative_input_2(
 		"1:"XSAVE,
-		"1:"XSAVEOPT,
+		XSAVEOPT,
 		X86_FEATURE_XSAVEOPT,
-		"1:"XSAVES,
+		XSAVES,
 		X86_FEATURE_XSAVES,
 		[fx] "D" (fx), "a" (lmask), "d" (hmask) :
 		"memory");
@@ -178,7 +172,7 @@ static inline int xrstor_state(struct xsave_struct *fx, u64 mask)
 	 */
 	alternative_input(
 		"1: " XRSTOR,
-		"1: " XRSTORS,
+		XRSTORS,
 		X86_FEATURE_XSAVES,
 		"D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
 		: "memory");

arch/x86/kernel/entry_64.S

@@ -269,11 +269,14 @@ ENTRY(ret_from_fork)
 	testl $3, CS-ARGOFFSET(%rsp)		# from kernel_thread?
 	jz   1f
 
-	testl $_TIF_IA32, TI_flags(%rcx)	# 32-bit compat task needs IRET
-	jnz  int_ret_from_sys_call
-
-	RESTORE_TOP_OF_STACK %rdi, -ARGOFFSET
-	jmp ret_from_sys_call			# go to the SYSRET fastpath
+	/*
+	 * By the time we get here, we have no idea whether our pt_regs,
+	 * ti flags, and ti status came from the 64-bit SYSCALL fast path,
+	 * the slow path, or one of the ia32entry paths.
+	 * Use int_ret_from_sys_call to return, since it can safely handle
+	 * all of the above.
+	 */
+	jmp  int_ret_from_sys_call
 
 1:
 	subq $REST_SKIP, %rsp	# leave space for volatiles

arch/x86/kvm/emulate.c

@@ -4950,7 +4950,8 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
 			goto done;
 		}
 	}
-	ctxt->dst.orig_val = ctxt->dst.val;
+	/* Copy full 64-bit value for CMPXCHG8B.  */
+	ctxt->dst.orig_val64 = ctxt->dst.val64;
 
 special_insn:
 

arch/x86/kvm/lapic.c

@@ -1572,7 +1572,7 @@ void kvm_lapic_reset(struct kvm_vcpu *vcpu)
 		apic_set_reg(apic, APIC_TMR + 0x10 * i, 0);
 	}
 	apic->irr_pending = kvm_apic_vid_enabled(vcpu->kvm);
-	apic->isr_count = kvm_apic_vid_enabled(vcpu->kvm);
+	apic->isr_count = kvm_x86_ops->hwapic_isr_update ? 1 : 0;
 	apic->highest_isr_cache = -1;
 	update_divide_count(apic);
 	atomic_set(&apic->lapic_timer.pending, 0);
@@ -1782,7 +1782,7 @@ void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu,
 	update_divide_count(apic);
 	start_apic_timer(apic);
 	apic->irr_pending = true;
-	apic->isr_count = kvm_apic_vid_enabled(vcpu->kvm) ?
+	apic->isr_count = kvm_x86_ops->hwapic_isr_update ?
 				1 : count_vectors(apic->regs + APIC_ISR);
 	apic->highest_isr_cache = -1;
 	if (kvm_x86_ops->hwapic_irr_update)

arch/x86/kvm/svm.c

@@ -3649,11 +3649,6 @@ static void svm_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
 	return;
 }
 
-static void svm_hwapic_isr_update(struct kvm *kvm, int isr)
-{
-	return;
-}
-
 static void svm_sync_pir_to_irr(struct kvm_vcpu *vcpu)
 {
 	return;
@@ -4403,7 +4398,6 @@ static struct kvm_x86_ops svm_x86_ops = {
 	.set_virtual_x2apic_mode = svm_set_virtual_x2apic_mode,
 	.vm_has_apicv = svm_vm_has_apicv,
 	.load_eoi_exitmap = svm_load_eoi_exitmap,
-	.hwapic_isr_update = svm_hwapic_isr_update,
 	.sync_pir_to_irr = svm_sync_pir_to_irr,
 
 	.set_tss_addr = svm_set_tss_addr,

arch/x86/kvm/vmx.c

@@ -4367,6 +4367,18 @@ static int vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_SMP
+	if (vcpu->mode == IN_GUEST_MODE) {
+		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
+				POSTED_INTR_VECTOR);
+		return true;
+	}
+#endif
+	return false;
+}
+
 static int vmx_deliver_nested_posted_interrupt(struct kvm_vcpu *vcpu,
 						int vector)
 {
@@ -4375,9 +4387,7 @@ static int vmx_deliver_nested_posted_interrupt(struct kvm_vcpu *vcpu,
 	if (is_guest_mode(vcpu) &&
 	    vector == vmx->nested.posted_intr_nv) {
 		/* the PIR and ON have been set by L1. */
-		if (vcpu->mode == IN_GUEST_MODE)
-			apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
-				POSTED_INTR_VECTOR);
+		kvm_vcpu_trigger_posted_interrupt(vcpu);
 		/*
 		 * If a posted intr is not recognized by hardware,
 		 * we will accomplish it in the next vmentry.
@@ -4409,12 +4419,7 @@ static void vmx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector)
 
 	r = pi_test_and_set_on(&vmx->pi_desc);
 	kvm_make_request(KVM_REQ_EVENT, vcpu);
-#ifdef CONFIG_SMP
-	if (!r && (vcpu->mode == IN_GUEST_MODE))
-		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
-				POSTED_INTR_VECTOR);
-	else
-#endif
+	if (r || !kvm_vcpu_trigger_posted_interrupt(vcpu))
 		kvm_vcpu_kick(vcpu);
 }
 

arch/x86/pci/acpi.c

@@ -331,7 +331,7 @@ static void probe_pci_root_info(struct pci_root_info *info,
 				struct list_head *list)
 {
 	int ret;
-	struct resource_entry *entry;
+	struct resource_entry *entry, *tmp;
 
 	sprintf(info->name, "PCI Bus %04x:%02x", domain, busnum);
 	info->bridge = device;
@@ -345,8 +345,13 @@ static void probe_pci_root_info(struct pci_root_info *info,
 		dev_dbg(&device->dev,
 			"no IO and memory resources present in _CRS\n");
 	else
-		resource_list_for_each_entry(entry, list)
-			entry->res->name = info->name;
+		resource_list_for_each_entry_safe(entry, tmp, list) {
+			if ((entry->res->flags & IORESOURCE_WINDOW) == 0 ||
+			    (entry->res->flags & IORESOURCE_DISABLED))
+				resource_list_destroy_entry(entry);
+			else
+				entry->res->name = info->name;
+		}
 }
 
 struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)

drivers/acpi/resource.c

@@ -42,8 +42,10 @@ static bool acpi_dev_resource_len_valid(u64 start, u64 end, u64 len, bool io)
 	 * CHECKME: len might be required to check versus a minimum
 	 * length as well. 1 for io is fine, but for memory it does
 	 * not make any sense at all.
+	 * Note: some BIOSes report incorrect length for ACPI address space
+	 * descriptor, so remove check of 'reslen == len' to avoid regression.
 	 */
-	if (len && reslen && reslen == len && start <= end)
+	if (len && reslen && start <= end)
 		return true;
 
 	pr_debug("ACPI: invalid or unassigned resource %s [%016llx - %016llx] length [%016llx]\n",

drivers/acpi/video.c

@@ -2110,7 +2110,8 @@ static int __init intel_opregion_present(void)
 
 int acpi_video_register(void)
 {
-	int result = 0;
+	int ret;
+
 	if (register_count) {
 		/*
 		 * if the function of acpi_video_register is already called,
@@ -2122,9 +2123,9 @@ int acpi_video_register(void)
 	mutex_init(&video_list_lock);
 	INIT_LIST_HEAD(&video_bus_head);
 
-	result = acpi_bus_register_driver(&acpi_video_bus);
-	if (result < 0)
-		return -ENODEV;
+	ret = acpi_bus_register_driver(&acpi_video_bus);
+	if (ret)
+		return ret;
 
 	/*
 	 * When the acpi_video_bus is loaded successfully, increase
@@ -2176,6 +2177,17 @@ EXPORT_SYMBOL(acpi_video_unregister_backlight);
 
 static int __init acpi_video_init(void)
 {
+	/*
+	 * Let the module load even if ACPI is disabled (e.g. due to
+	 * a broken BIOS) so that i915.ko can still be loaded on such
+	 * old systems without an AcpiOpRegion.
+	 *
+	 * acpi_video_register() will report -ENODEV later as well due
+	 * to acpi_disabled when i915.ko tries to register itself afterwards.
+	 */
+	if (acpi_disabled)
+		return 0;
+
 	dmi_check_system(video_dmi_table);
 
 	if (intel_opregion_present())

drivers/android/binder.c

@@ -551,7 +551,6 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 {
 	void *page_addr;
 	unsigned long user_page_addr;
-	struct vm_struct tmp_area;
 	struct page **page;
 	struct mm_struct *mm;
 
@@ -600,10 +599,11 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 				proc->pid, page_addr);
 			goto err_alloc_page_failed;
 		}
-		tmp_area.addr = page_addr;
-		tmp_area.size = PAGE_SIZE + PAGE_SIZE /* guard page? */;
-		ret = map_vm_area(&tmp_area, PAGE_KERNEL, page);
-		if (ret) {
+		ret = map_kernel_range_noflush((unsigned long)page_addr,
+					PAGE_SIZE, PAGE_KERNEL, page);
+		flush_cache_vmap((unsigned long)page_addr,
+				(unsigned long)page_addr + PAGE_SIZE);
+		if (ret != 1) {
 			pr_err("%d: binder_alloc_buf failed to map page at %p in kernel\n",
 			       proc->pid, page_addr);
 			goto err_map_kernel_failed;

drivers/base/power/domain.c

@@ -2242,7 +2242,7 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev)
 }
 
 static int pm_genpd_summary_one(struct seq_file *s,
-		struct generic_pm_domain *gpd)
+				struct generic_pm_domain *genpd)
 {
 	static const char * const status_lookup[] = {
 		[GPD_STATE_ACTIVE] = "on",
@@ -2256,26 +2256,26 @@ static int pm_genpd_summary_one(struct seq_file *s,
 	struct gpd_link *link;
 	int ret;
 
-	ret = mutex_lock_interruptible(&gpd->lock);
+	ret = mutex_lock_interruptible(&genpd->lock);
 	if (ret)
 		return -ERESTARTSYS;
 
-	if (WARN_ON(gpd->status >= ARRAY_SIZE(status_lookup)))
+	if (WARN_ON(genpd->status >= ARRAY_SIZE(status_lookup)))
 		goto exit;
-	seq_printf(s, "%-30s  %-15s  ", gpd->name, status_lookup[gpd->status]);
+	seq_printf(s, "%-30s  %-15s  ", genpd->name, status_lookup[genpd->status]);
 
 	/*
 	 * Modifications on the list require holding locks on both
 	 * master and slave, so we are safe.
-	 * Also gpd->name is immutable.
+	 * Also genpd->name is immutable.
 	 */
-	list_for_each_entry(link, &gpd->master_links, master_node) {
+	list_for_each_entry(link, &genpd->master_links, master_node) {
 		seq_printf(s, "%s", link->slave->name);
-		if (!list_is_last(&link->master_node, &gpd->master_links))
+		if (!list_is_last(&link->master_node, &genpd->master_links))
 			seq_puts(s, ", ");
 	}
 
-	list_for_each_entry(pm_data, &gpd->dev_list, list_node) {
+	list_for_each_entry(pm_data, &genpd->dev_list, list_node) {
 		kobj_path = kobject_get_path(&pm_data->dev->kobj, GFP_KERNEL);
 		if (kobj_path == NULL)
 			continue;
@@ -2287,14 +2287,14 @@ static int pm_genpd_summary_one(struct seq_file *s,
 
 	seq_puts(s, "\n");
 exit:
-	mutex_unlock(&gpd->lock);
+	mutex_unlock(&genpd->lock);
 
 	return 0;
 }
 
 static int pm_genpd_summary_show(struct seq_file *s, void *data)
 {
-	struct generic_pm_domain *gpd;
+	struct generic_pm_domain *genpd;
 	int ret = 0;
 
 	seq_puts(s, "    domain                      status         slaves\n");
@@ -2305,8 +2305,8 @@ static int pm_genpd_summary_show(struct seq_file *s, void *data)
 	if (ret)
 		return -ERESTARTSYS;
 
-	list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
-		ret = pm_genpd_summary_one(s, gpd);
+	list_for_each_entry(genpd, &gpd_list, gpd_list_node) {
+		ret = pm_genpd_summary_one(s, genpd);
 		if (ret)
 			break;
 	}

drivers/base/power/wakeup.c

@@ -730,6 +730,7 @@ void pm_system_wakeup(void)
 	pm_abort_suspend = true;
 	freeze_wake();
 }
+EXPORT_SYMBOL_GPL(pm_system_wakeup);
 
 void pm_wakeup_clear(void)
 {

drivers/bluetooth/btusb.c

@@ -272,6 +272,7 @@ static const struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 
 	/* Intel Bluetooth devices */
+	{ USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 	{ USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
 	{ USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
 	{ USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },

drivers/clk/at91/pmc.c

@@ -89,12 +89,29 @@ static int pmc_irq_set_type(struct irq_data *d, unsigned type)
 	return 0;
 }
 
+static void pmc_irq_suspend(struct irq_data *d)
+{
+	struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
+
+	pmc->imr = pmc_read(pmc, AT91_PMC_IMR);
+	pmc_write(pmc, AT91_PMC_IDR, pmc->imr);
+}
+
+static void pmc_irq_resume(struct irq_data *d)
+{
+	struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
+
+	pmc_write(pmc, AT91_PMC_IER, pmc->imr);
+}
+
 static struct irq_chip pmc_irq = {
 	.name = "PMC",
 	.irq_disable = pmc_irq_mask,
 	.irq_mask = pmc_irq_mask,
 	.irq_unmask = pmc_irq_unmask,
 	.irq_set_type = pmc_irq_set_type,
+	.irq_suspend = pmc_irq_suspend,
+	.irq_resume = pmc_irq_resume,
 };
 
 static struct lock_class_key pmc_lock_class;
@@ -224,7 +241,8 @@ static struct at91_pmc *__init at91_pmc_init(struct device_node *np,
 		goto out_free_pmc;
 
 	pmc_write(pmc, AT91_PMC_IDR, 0xffffffff);
-	if (request_irq(pmc->virq, pmc_irq_handler, IRQF_SHARED, "pmc", pmc))
+	if (request_irq(pmc->virq, pmc_irq_handler,
+			IRQF_SHARED | IRQF_COND_SUSPEND, "pmc", pmc))
 		goto out_remove_irqdomain;
 
 	return pmc;

drivers/clk/at91/pmc.h

@@ -33,6 +33,7 @@ struct at91_pmc {
 	spinlock_t lock;
 	const struct at91_pmc_caps *caps;
 	struct irq_domain *irqdomain;
+	u32 imr;
 };
 
 static inline void pmc_lock(struct at91_pmc *pmc)

drivers/cpufreq/exynos-cpufreq.c

@@ -159,7 +159,7 @@ static struct cpufreq_driver exynos_driver = {
 
 static int exynos_cpufreq_probe(struct platform_device *pdev)
 {
-	struct device_node *cpus, *np;
+	struct device_node *cpu0;
 	int ret = -EINVAL;
 
 	exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
@@ -206,28 +206,19 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_cpufreq_reg;
 
-	cpus = of_find_node_by_path("/cpus");
-	if (!cpus) {
-		pr_err("failed to find cpus node\n");
+	cpu0 = of_get_cpu_node(0, NULL);
+	if (!cpu0) {
+		pr_err("failed to find cpu0 node\n");
 		return 0;
 	}
 
-	np = of_get_next_child(cpus, NULL);
-	if (!np) {
-		pr_err("failed to find cpus child node\n");
-		of_node_put(cpus);
-		return 0;
-	}
-
-	if (of_find_property(np, "#cooling-cells", NULL)) {
-		cdev = of_cpufreq_cooling_register(np,
+	if (of_find_property(cpu0, "#cooling-cells", NULL)) {
+		cdev = of_cpufreq_cooling_register(cpu0,
 						   cpu_present_mask);
 		if (IS_ERR(cdev))
 			pr_err("running cpufreq without cooling device: %ld\n",
 			       PTR_ERR(cdev));
 	}
-	of_node_put(np);
-	of_node_put(cpus);
 
 	return 0;
 

drivers/cpufreq/ppc-corenet-cpufreq.c

@@ -22,6 +22,8 @@
 #include <linux/smp.h>
 #include <sysdev/fsl_soc.h>
 
+#include <asm/smp.h>	/* for get_hard_smp_processor_id() in UP configs */
+
 /**
  * struct cpu_data - per CPU data struct
  * @parent: the parent node of cpu clock

drivers/cpuidle/cpuidle.c

@@ -44,6 +44,12 @@ void disable_cpuidle(void)
 	off = 1;
 }
 
+bool cpuidle_not_available(struct cpuidle_driver *drv,
+			   struct cpuidle_device *dev)
+{
+	return off || !initialized || !drv || !dev || !dev->enabled;
+}
+
 /**
  * cpuidle_play_dead - cpu off-lining
  *
@@ -66,14 +72,8 @@ int cpuidle_play_dead(void)
 	return -ENODEV;
 }
 
-/**
- * cpuidle_find_deepest_state - Find deepest state meeting specific conditions.
- * @drv: cpuidle driver for the given CPU.
- * @dev: cpuidle device for the given CPU.
- * @freeze: Whether or not the state should be suitable for suspend-to-idle.
- */
-static int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
-				      struct cpuidle_device *dev, bool freeze)
+static int find_deepest_state(struct cpuidle_driver *drv,
+			      struct cpuidle_device *dev, bool freeze)
 {
 	unsigned int latency_req = 0;
 	int i, ret = freeze ? -1 : CPUIDLE_DRIVER_STATE_START - 1;
@@ -92,6 +92,17 @@ static int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
 	return ret;
 }
 
+/**
+ * cpuidle_find_deepest_state - Find the deepest available idle state.
+ * @drv: cpuidle driver for the given CPU.
+ * @dev: cpuidle device for the given CPU.
+ */
+int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
+			       struct cpuidle_device *dev)
+{
+	return find_deepest_state(drv, dev, false);
+}
+
 static void enter_freeze_proper(struct cpuidle_driver *drv,
 				struct cpuidle_device *dev, int index)
 {
@@ -113,15 +124,14 @@ static void enter_freeze_proper(struct cpuidle_driver *drv,
 
 /**
  * cpuidle_enter_freeze - Enter an idle state suitable for suspend-to-idle.
+ * @drv: cpuidle driver for the given CPU.
+ * @dev: cpuidle device for the given CPU.
  *
  * If there are states with the ->enter_freeze callback, find the deepest of
- * them and enter it with frozen tick.  Otherwise, find the deepest state
- * available and enter it normally.
+ * them and enter it with frozen tick.
  */
-void cpuidle_enter_freeze(void)
+int cpuidle_enter_freeze(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 {
-	struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
-	struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
 	int index;
 
 	/*
@@ -129,24 +139,11 @@ void cpuidle_enter_freeze(void)
 	 * that interrupts won't be enabled when it exits and allows the tick to
 	 * be frozen safely.
 	 */
-	index = cpuidle_find_deepest_state(drv, dev, true);
-	if (index >= 0) {
-		enter_freeze_proper(drv, dev, index);
-		return;
-	}
-
-	/*
-	 * It is not safe to freeze the tick, find the deepest state available
-	 * at all and try to enter it normally.
-	 */
-	index = cpuidle_find_deepest_state(drv, dev, false);
+	index = find_deepest_state(drv, dev, true);
 	if (index >= 0)
-		cpuidle_enter(drv, dev, index);
-	else
-		arch_cpu_idle();
+		enter_freeze_proper(drv, dev, index);
 
-	/* Interrupts are enabled again here. */
-	local_irq_disable();
+	return index;
 }
 
 /**
@@ -205,12 +202,6 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
  */
 int cpuidle_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 {
-	if (off || !initialized)
-		return -ENODEV;
-
-	if (!drv || !dev || !dev->enabled)
-		return -EBUSY;
-
 	return cpuidle_curr_governor->select(drv, dev);
 }
 

drivers/dma-buf/fence.c

@@ -159,6 +159,9 @@ fence_wait_timeout(struct fence *fence, bool intr, signed long timeout)
 	if (WARN_ON(timeout < 0))
 		return -EINVAL;
 
+	if (timeout == 0)
+		return fence_is_signaled(fence);
+
 	trace_fence_wait_start(fence);
 	ret = fence->ops->wait(fence, intr, timeout);
 	trace_fence_wait_end(fence);

drivers/dma-buf/reservation.c

@@ -327,6 +327,9 @@ long reservation_object_wait_timeout_rcu(struct reservation_object *obj,
 	unsigned seq, shared_count, i = 0;
 	long ret = timeout;
 
+	if (!timeout)
+		return reservation_object_test_signaled_rcu(obj, wait_all);
+
 retry:
 	fence = NULL;
 	shared_count = 0;
@@ -402,8 +405,6 @@ reservation_object_test_signaled_single(struct fence *passed_fence)
 	int ret = 1;
 
 	if (!test_bit(FENCE_FLAG_SIGNALED_BIT, &lfence->flags)) {
-		int ret;
-
 		fence = fence_get_rcu(lfence);
 		if (!fence)
 			return -1;

drivers/dma/at_xdmac.c

@@ -664,7 +664,6 @@ at_xdmac_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr,
 	struct at_xdmac_desc	*first = NULL, *prev = NULL;
 	unsigned int		periods = buf_len / period_len;
 	int			i;
-	u32			cfg;
 
 	dev_dbg(chan2dev(chan), "%s: buf_addr=%pad, buf_len=%zd, period_len=%zd, dir=%s, flags=0x%lx\n",
 		__func__, &buf_addr, buf_len, period_len,
@@ -700,17 +699,17 @@ at_xdmac_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr,
 		if (direction == DMA_DEV_TO_MEM) {
 			desc->lld.mbr_sa = atchan->per_src_addr;
 			desc->lld.mbr_da = buf_addr + i * period_len;
-			cfg = atchan->cfg[AT_XDMAC_DEV_TO_MEM_CFG];
+			desc->lld.mbr_cfg = atchan->cfg[AT_XDMAC_DEV_TO_MEM_CFG];
 		} else {
 			desc->lld.mbr_sa = buf_addr + i * period_len;
 			desc->lld.mbr_da = atchan->per_dst_addr;
-			cfg = atchan->cfg[AT_XDMAC_MEM_TO_DEV_CFG];
+			desc->lld.mbr_cfg = atchan->cfg[AT_XDMAC_MEM_TO_DEV_CFG];
 		}
 		desc->lld.mbr_ubc = AT_XDMAC_MBR_UBC_NDV1
 			| AT_XDMAC_MBR_UBC_NDEN
 			| AT_XDMAC_MBR_UBC_NSEN
 			| AT_XDMAC_MBR_UBC_NDE
-			| period_len >> at_xdmac_get_dwidth(cfg);
+			| period_len >> at_xdmac_get_dwidth(desc->lld.mbr_cfg);
 
 		dev_dbg(chan2dev(chan),
 			 "%s: lld: mbr_sa=%pad, mbr_da=%pad, mbr_ubc=0x%08x\n",

drivers/dma/dw/core.c

@@ -626,7 +626,7 @@ static irqreturn_t dw_dma_interrupt(int irq, void *dev_id)
 	dev_vdbg(dw->dma.dev, "%s: status=0x%x\n", __func__, status);
 
 	/* Check if we have any interrupt from the DMAC */
-	if (!status)
+	if (!status || !dw->in_use)
 		return IRQ_NONE;
 
 	/*

drivers/dma/ioat/dma_v3.c

@@ -230,6 +230,10 @@ static bool is_bwd_noraid(struct pci_dev *pdev)
 	switch (pdev->device) {
 	case PCI_DEVICE_ID_INTEL_IOAT_BWD2:
 	case PCI_DEVICE_ID_INTEL_IOAT_BWD3:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE0:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE1:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE2:
+	case PCI_DEVICE_ID_INTEL_IOAT_BDXDE3:
 		return true;
 	default:
 		return false;

drivers/dma/mmp_pdma.c

@@ -219,6 +219,9 @@ static irqreturn_t mmp_pdma_int_handler(int irq, void *dev_id)
 
 	while (dint) {
 		i = __ffs(dint);
+		/* only handle interrupts belonging to pdma driver*/
+		if (i >= pdev->dma_channels)
+			break;
 		dint &= (dint - 1);
 		phy = &pdev->phy[i];
 		ret = mmp_pdma_chan_handler(irq, phy);
@@ -999,6 +1002,9 @@ static int mmp_pdma_probe(struct platform_device *op)
 	struct resource *iores;
 	int i, ret, irq = 0;
 	int dma_channels = 0, irq_num = 0;
+	const enum dma_slave_buswidth widths =
+		DMA_SLAVE_BUSWIDTH_1_BYTE   | DMA_SLAVE_BUSWIDTH_2_BYTES |
+		DMA_SLAVE_BUSWIDTH_4_BYTES;
 
 	pdev = devm_kzalloc(&op->dev, sizeof(*pdev), GFP_KERNEL);
 	if (!pdev)
@@ -1066,6 +1072,10 @@ static int mmp_pdma_probe(struct platform_device *op)
 	pdev->device.device_config = mmp_pdma_config;
 	pdev->device.device_terminate_all = mmp_pdma_terminate_all;
 	pdev->device.copy_align = PDMA_ALIGNMENT;
+	pdev->device.src_addr_widths = widths;
+	pdev->device.dst_addr_widths = widths;
+	pdev->device.directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);
+	pdev->device.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
 
 	if (pdev->dev->coherent_dma_mask)
 		dma_set_mask(pdev->dev, pdev->dev->coherent_dma_mask);

drivers/dma/mmp_tdma.c

@@ -110,7 +110,7 @@ struct mmp_tdma_chan {
 	struct tasklet_struct		tasklet;
 
 	struct mmp_tdma_desc		*desc_arr;
-	phys_addr_t			desc_arr_phys;
+	dma_addr_t			desc_arr_phys;
 	int				desc_num;
 	enum dma_transfer_direction	dir;
 	dma_addr_t			dev_addr;
@@ -166,9 +166,12 @@ static void mmp_tdma_enable_chan(struct mmp_tdma_chan *tdmac)
 static int mmp_tdma_disable_chan(struct dma_chan *chan)
 {
 	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);
+	u32 tdcr;
 
-	writel(readl(tdmac->reg_base + TDCR) & ~TDCR_CHANEN,
-					tdmac->reg_base + TDCR);
+	tdcr = readl(tdmac->reg_base + TDCR);
+	tdcr |= TDCR_ABR;
+	tdcr &= ~TDCR_CHANEN;
+	writel(tdcr, tdmac->reg_base + TDCR);
 
 	tdmac->status = DMA_COMPLETE;
 
@@ -296,12 +299,27 @@ static int mmp_tdma_clear_chan_irq(struct mmp_tdma_chan *tdmac)
 	return -EAGAIN;
 }
 
+static size_t mmp_tdma_get_pos(struct mmp_tdma_chan *tdmac)
+{
+	size_t reg;
+
+	if (tdmac->idx == 0) {
+		reg = __raw_readl(tdmac->reg_base + TDSAR);
+		reg -= tdmac->desc_arr[0].src_addr;
+	} else if (tdmac->idx == 1) {
+		reg = __raw_readl(tdmac->reg_base + TDDAR);
+		reg -= tdmac->desc_arr[0].dst_addr;
+	} else
+		return -EINVAL;
+
+	return reg;
+}
+
 static irqreturn_t mmp_tdma_chan_handler(int irq, void *dev_id)
 {
 	struct mmp_tdma_chan *tdmac = dev_id;
 
 	if (mmp_tdma_clear_chan_irq(tdmac) == 0) {
-		tdmac->pos = (tdmac->pos + tdmac->period_len) % tdmac->buf_len;
 		tasklet_schedule(&tdmac->tasklet);
 		return IRQ_HANDLED;
 	} else
@@ -343,7 +361,7 @@ static void mmp_tdma_free_descriptor(struct mmp_tdma_chan *tdmac)
 	int size = tdmac->desc_num * sizeof(struct mmp_tdma_desc);
 
 	gpool = tdmac->pool;
-	if (tdmac->desc_arr)
+	if (gpool && tdmac->desc_arr)
 		gen_pool_free(gpool, (unsigned long)tdmac->desc_arr,
 				size);
 	tdmac->desc_arr = NULL;
@@ -499,6 +517,7 @@ static enum dma_status mmp_tdma_tx_status(struct dma_chan *chan,
 {
 	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);
 
+	tdmac->pos = mmp_tdma_get_pos(tdmac);
 	dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie,
 			 tdmac->buf_len - tdmac->pos);
 
@@ -610,7 +629,7 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	int i, ret;
 	int irq = 0, irq_num = 0;
 	int chan_num = TDMA_CHANNEL_NUM;
-	struct gen_pool *pool;
+	struct gen_pool *pool = NULL;
 
 	of_id = of_match_device(mmp_tdma_dt_ids, &pdev->dev);
 	if (of_id)

drivers/dma/qcom_bam_dma.c

@@ -162,9 +162,9 @@ static const struct reg_offset_data bam_v1_4_reg_info[] = {
 	[BAM_P_IRQ_STTS]	= { 0x1010, 0x1000, 0x00, 0x00 },
 	[BAM_P_IRQ_CLR]		= { 0x1014, 0x1000, 0x00, 0x00 },
 	[BAM_P_IRQ_EN]		= { 0x1018, 0x1000, 0x00, 0x00 },
-	[BAM_P_EVNT_DEST_ADDR]	= { 0x102C, 0x00, 0x1000, 0x00 },
-	[BAM_P_EVNT_REG]	= { 0x1018, 0x00, 0x1000, 0x00 },
-	[BAM_P_SW_OFSTS]	= { 0x1000, 0x00, 0x1000, 0x00 },
+	[BAM_P_EVNT_DEST_ADDR]	= { 0x182C, 0x00, 0x1000, 0x00 },
+	[BAM_P_EVNT_REG]	= { 0x1818, 0x00, 0x1000, 0x00 },
+	[BAM_P_SW_OFSTS]	= { 0x1800, 0x00, 0x1000, 0x00 },
 	[BAM_P_DATA_FIFO_ADDR]	= { 0x1824, 0x00, 0x1000, 0x00 },
 	[BAM_P_DESC_FIFO_ADDR]	= { 0x181C, 0x00, 0x1000, 0x00 },
 	[BAM_P_EVNT_GEN_TRSHLD]	= { 0x1828, 0x00, 0x1000, 0x00 },
@@ -1143,6 +1143,10 @@ static int bam_dma_probe(struct platform_device *pdev)
 	dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
 
 	/* initialize dmaengine apis */
+	bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
+	bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	bdev->common.device_alloc_chan_resources = bam_alloc_chan;
 	bdev->common.device_free_chan_resources = bam_free_chan;
 	bdev->common.device_prep_slave_sg = bam_prep_slave_sg;

drivers/dma/sh/shdmac.c

@@ -582,15 +582,12 @@ static void sh_dmae_chan_remove(struct sh_dmae_device *shdev)
 	}
 }
 
-static void sh_dmae_shutdown(struct platform_device *pdev)
-{
-	struct sh_dmae_device *shdev = platform_get_drvdata(pdev);
-	sh_dmae_ctl_stop(shdev);
-}
-
 #ifdef CONFIG_PM
 static int sh_dmae_runtime_suspend(struct device *dev)
 {
+	struct sh_dmae_device *shdev = dev_get_drvdata(dev);
+
+	sh_dmae_ctl_stop(shdev);
 	return 0;
 }
 
@@ -605,6 +602,9 @@ static int sh_dmae_runtime_resume(struct device *dev)
 #ifdef CONFIG_PM_SLEEP
 static int sh_dmae_suspend(struct device *dev)
 {
+	struct sh_dmae_device *shdev = dev_get_drvdata(dev);
+
+	sh_dmae_ctl_stop(shdev);
 	return 0;
 }
 
@@ -929,13 +929,12 @@ static int sh_dmae_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver sh_dmae_driver = {
-	.driver 	= {
+	.driver		= {
 		.pm	= &sh_dmae_pm,
 		.name	= SH_DMAE_DRV_NAME,
 		.of_match_table = sh_dmae_of_match,
 	},
 	.remove		= sh_dmae_remove,
-	.shutdown	= sh_dmae_shutdown,
 };
 
 static int __init sh_dmae_init(void)

drivers/firmware/dmi_scan.c

@@ -78,7 +78,7 @@ static const char * __init dmi_string(const struct dmi_header *dm, u8 s)
  *	We have to be cautious here. We have seen BIOSes with DMI pointers
  *	pointing to completely the wrong place for example
  */
-static void dmi_table(u8 *buf, int len, int num,
+static void dmi_table(u8 *buf, u32 len, int num,
 		      void (*decode)(const struct dmi_header *, void *),
 		      void *private_data)
 {
@@ -92,12 +92,6 @@ static void dmi_table(u8 *buf, int len, int num,
 	while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) {
 		const struct dmi_header *dm = (const struct dmi_header *)data;
 
-		/*
-		 * 7.45 End-of-Table (Type 127) [SMBIOS reference spec v3.0.0]
-		 */
-		if (dm->type == DMI_ENTRY_END_OF_TABLE)
-			break;
-
 		/*
 		 *  We want to know the total length (formatted area and
 		 *  strings) before decoding to make sure we won't run off the
@@ -108,13 +102,20 @@ static void dmi_table(u8 *buf, int len, int num,
 			data++;
 		if (data - buf < len - 1)
 			decode(dm, private_data);
+
+		/*
+		 * 7.45 End-of-Table (Type 127) [SMBIOS reference spec v3.0.0]
+		 */
+		if (dm->type == DMI_ENTRY_END_OF_TABLE)
+			break;
+
 		data += 2;
 		i++;
 	}
 }
 
 static phys_addr_t dmi_base;
-static u16 dmi_len;
+static u32 dmi_len;
 static u16 dmi_num;
 
 static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,

drivers/firmware/efi/libstub/efi-stub-helper.c

@@ -179,12 +179,12 @@ again:
 		start = desc->phys_addr;
 		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
 
-		if ((start + size) > end || (start + size) > max)
-			continue;
-
-		if (end - size > max)
+		if (end > max)
 			end = max;
 
+		if ((start + size) > end)
+			continue;
+
 		if (round_down(end - size, align) < start)
 			continue;
 

drivers/gpu/drm/drm_mm.c

@@ -91,29 +91,29 @@
  */
 
 static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
-						unsigned long size,
+						u64 size,
 						unsigned alignment,
 						unsigned long color,
 						enum drm_mm_search_flags flags);
 static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
-						unsigned long size,
+						u64 size,
 						unsigned alignment,
 						unsigned long color,
-						unsigned long start,
-						unsigned long end,
+						u64 start,
+						u64 end,
 						enum drm_mm_search_flags flags);
 
 static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 				 struct drm_mm_node *node,
-				 unsigned long size, unsigned alignment,
+				 u64 size, unsigned alignment,
 				 unsigned long color,
 				 enum drm_mm_allocator_flags flags)
 {
 	struct drm_mm *mm = hole_node->mm;
-	unsigned long hole_start = drm_mm_hole_node_start(hole_node);
-	unsigned long hole_end = drm_mm_hole_node_end(hole_node);
-	unsigned long adj_start = hole_start;
-	unsigned long adj_end = hole_end;
+	u64 hole_start = drm_mm_hole_node_start(hole_node);
+	u64 hole_end = drm_mm_hole_node_end(hole_node);
+	u64 adj_start = hole_start;
+	u64 adj_end = hole_end;
 
 	BUG_ON(node->allocated);
 
@@ -124,12 +124,15 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 		adj_start = adj_end - size;
 
 	if (alignment) {
-		unsigned tmp = adj_start % alignment;
-		if (tmp) {
+		u64 tmp = adj_start;
+		unsigned rem;
+
+		rem = do_div(tmp, alignment);
+		if (rem) {
 			if (flags & DRM_MM_CREATE_TOP)
-				adj_start -= tmp;
+				adj_start -= rem;
 			else
-				adj_start += alignment - tmp;
+				adj_start += alignment - rem;
 		}
 	}
 
@@ -176,9 +179,9 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node)
 {
 	struct drm_mm_node *hole;
-	unsigned long end = node->start + node->size;
-	unsigned long hole_start;
-	unsigned long hole_end;
+	u64 end = node->start + node->size;
+	u64 hole_start;
+	u64 hole_end;
 
 	BUG_ON(node == NULL);
 
@@ -227,7 +230,7 @@ EXPORT_SYMBOL(drm_mm_reserve_node);
  * 0 on success, -ENOSPC if there's no suitable hole.
  */
 int drm_mm_insert_node_generic(struct drm_mm *mm, struct drm_mm_node *node,
-			       unsigned long size, unsigned alignment,
+			       u64 size, unsigned alignment,
 			       unsigned long color,
 			       enum drm_mm_search_flags sflags,
 			       enum drm_mm_allocator_flags aflags)
@@ -246,16 +249,16 @@ EXPORT_SYMBOL(drm_mm_insert_node_generic);
 
 static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
 				       struct drm_mm_node *node,
-				       unsigned long size, unsigned alignment,
+				       u64 size, unsigned alignment,
 				       unsigned long color,
-				       unsigned long start, unsigned long end,
+				       u64 start, u64 end,
 				       enum drm_mm_allocator_flags flags)
 {
 	struct drm_mm *mm = hole_node->mm;
-	unsigned long hole_start = drm_mm_hole_node_start(hole_node);
-	unsigned long hole_end = drm_mm_hole_node_end(hole_node);
-	unsigned long adj_start = hole_start;
-	unsigned long adj_end = hole_end;
+	u64 hole_start = drm_mm_hole_node_start(hole_node);
+	u64 hole_end = drm_mm_hole_node_end(hole_node);
+	u64 adj_start = hole_start;
+	u64 adj_end = hole_end;
 
 	BUG_ON(!hole_node->hole_follows || node->allocated);
 
@@ -271,12 +274,15 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
 		mm->color_adjust(hole_node, color, &adj_start, &adj_end);
 
 	if (alignment) {
-		unsigned tmp = adj_start % alignment;
-		if (tmp) {
+		u64 tmp = adj_start;
+		unsigned rem;
+
+		rem = do_div(tmp, alignment);
+		if (rem) {
 			if (flags & DRM_MM_CREATE_TOP)
-				adj_start -= tmp;
+				adj_start -= rem;
 			else
-				adj_start += alignment - tmp;
+				adj_start += alignment - rem;
 		}
 	}
 
@@ -324,9 +330,9 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
  * 0 on success, -ENOSPC if there's no suitable hole.
  */
 int drm_mm_insert_node_in_range_generic(struct drm_mm *mm, struct drm_mm_node *node,
-					unsigned long size, unsigned alignment,
+					u64 size, unsigned alignment,
 					unsigned long color,
-					unsigned long start, unsigned long end,
+					u64 start, u64 end,
 					enum drm_mm_search_flags sflags,
 					enum drm_mm_allocator_flags aflags)
 {
@@ -387,32 +393,34 @@ void drm_mm_remove_node(struct drm_mm_node *node)
 }
 EXPORT_SYMBOL(drm_mm_remove_node);
 
-static int check_free_hole(unsigned long start, unsigned long end,
-			   unsigned long size, unsigned alignment)
+static int check_free_hole(u64 start, u64 end, u64 size, unsigned alignment)
 {
 	if (end - start < size)
 		return 0;
 
 	if (alignment) {
-		unsigned tmp = start % alignment;
+		u64 tmp = start;
+		unsigned rem;
+
+		rem = do_div(tmp, alignment);
 		if (tmp)
-			start += alignment - tmp;
+			start += alignment - rem;
 	}
 
 	return end >= start + size;
 }
 
 static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
-						      unsigned long size,
+						      u64 size,
 						      unsigned alignment,
 						      unsigned long color,
 						      enum drm_mm_search_flags flags)
 {
 	struct drm_mm_node *entry;
 	struct drm_mm_node *best;
-	unsigned long adj_start;
-	unsigned long adj_end;
-	unsigned long best_size;
+	u64 adj_start;
+	u64 adj_end;
+	u64 best_size;
 
 	BUG_ON(mm->scanned_blocks);
 
@@ -421,7 +429,7 @@ static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
 
 	__drm_mm_for_each_hole(entry, mm, adj_start, adj_end,
 			       flags & DRM_MM_SEARCH_BELOW) {
-		unsigned long hole_size = adj_end - adj_start;
+		u64 hole_size = adj_end - adj_start;
 
 		if (mm->color_adjust) {
 			mm->color_adjust(entry, color, &adj_start, &adj_end);
@@ -445,18 +453,18 @@ static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
 }
 
 static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
-							unsigned long size,
+							u64 size,
 							unsigned alignment,
 							unsigned long color,
-							unsigned long start,
-							unsigned long end,
+							u64 start,
+							u64 end,
 							enum drm_mm_search_flags flags)
 {
 	struct drm_mm_node *entry;
 	struct drm_mm_node *best;
-	unsigned long adj_start;
-	unsigned long adj_end;
-	unsigned long best_size;
+	u64 adj_start;
+	u64 adj_end;
+	u64 best_size;
 
 	BUG_ON(mm->scanned_blocks);
 
@@ -465,7 +473,7 @@ static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_
 
 	__drm_mm_for_each_hole(entry, mm, adj_start, adj_end,
 			       flags & DRM_MM_SEARCH_BELOW) {
-		unsigned long hole_size = adj_end - adj_start;
+		u64 hole_size = adj_end - adj_start;
 
 		if (adj_start < start)
 			adj_start = start;
@@ -561,7 +569,7 @@ EXPORT_SYMBOL(drm_mm_replace_node);
  * adding/removing nodes to/from the scan list are allowed.
  */
 void drm_mm_init_scan(struct drm_mm *mm,
-		      unsigned long size,
+		      u64 size,
 		      unsigned alignment,
 		      unsigned long color)
 {
@@ -594,11 +602,11 @@ EXPORT_SYMBOL(drm_mm_init_scan);
  * adding/removing nodes to/from the scan list are allowed.
  */
 void drm_mm_init_scan_with_range(struct drm_mm *mm,
-				 unsigned long size,
+				 u64 size,
 				 unsigned alignment,
 				 unsigned long color,
-				 unsigned long start,
-				 unsigned long end)
+				 u64 start,
+				 u64 end)
 {
 	mm->scan_color = color;
 	mm->scan_alignment = alignment;
@@ -627,8 +635,8 @@ bool drm_mm_scan_add_block(struct drm_mm_node *node)
 {
 	struct drm_mm *mm = node->mm;
 	struct drm_mm_node *prev_node;
-	unsigned long hole_start, hole_end;
-	unsigned long adj_start, adj_end;
+	u64 hole_start, hole_end;
+	u64 adj_start, adj_end;
 
 	mm->scanned_blocks++;
 
@@ -731,7 +739,7 @@ EXPORT_SYMBOL(drm_mm_clean);
  *
  * Note that @mm must be cleared to 0 before calling this function.
  */
-void drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size)
+void drm_mm_init(struct drm_mm * mm, u64 start, u64 size)
 {
 	INIT_LIST_HEAD(&mm->hole_stack);
 	mm->scanned_blocks = 0;
@@ -766,18 +774,17 @@ void drm_mm_takedown(struct drm_mm * mm)
 }
 EXPORT_SYMBOL(drm_mm_takedown);
 
-static unsigned long drm_mm_debug_hole(struct drm_mm_node *entry,
-				       const char *prefix)
+static u64 drm_mm_debug_hole(struct drm_mm_node *entry,
+				     const char *prefix)
 {
-	unsigned long hole_start, hole_end, hole_size;
+	u64 hole_start, hole_end, hole_size;
 
 	if (entry->hole_follows) {
 		hole_start = drm_mm_hole_node_start(entry);
 		hole_end = drm_mm_hole_node_end(entry);
 		hole_size = hole_end - hole_start;
-		printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: free\n",
-			prefix, hole_start, hole_end,
-			hole_size);
+		pr_debug("%s %#llx-%#llx: %llu: free\n", prefix, hole_start,
+			 hole_end, hole_size);
 		return hole_size;
 	}
 
@@ -792,35 +799,34 @@ static unsigned long drm_mm_debug_hole(struct drm_mm_node *entry,
 void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
 {
 	struct drm_mm_node *entry;
-	unsigned long total_used = 0, total_free = 0, total = 0;
+	u64 total_used = 0, total_free = 0, total = 0;
 
 	total_free += drm_mm_debug_hole(&mm->head_node, prefix);
 
 	drm_mm_for_each_node(entry, mm) {
-		printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: used\n",
-			prefix, entry->start, entry->start + entry->size,
-			entry->size);
+		pr_debug("%s %#llx-%#llx: %llu: used\n", prefix, entry->start,
+			 entry->start + entry->size, entry->size);
 		total_used += entry->size;
 		total_free += drm_mm_debug_hole(entry, prefix);
 	}
 	total = total_free + total_used;
 
-	printk(KERN_DEBUG "%s total: %lu, used %lu free %lu\n", prefix, total,
-		total_used, total_free);
+	pr_debug("%s total: %llu, used %llu free %llu\n", prefix, total,
+		 total_used, total_free);
 }
 EXPORT_SYMBOL(drm_mm_debug_table);
 
 #if defined(CONFIG_DEBUG_FS)
-static unsigned long drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *entry)
+static u64 drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *entry)
 {
-	unsigned long hole_start, hole_end, hole_size;
+	u64 hole_start, hole_end, hole_size;
 
 	if (entry->hole_follows) {
 		hole_start = drm_mm_hole_node_start(entry);
 		hole_end = drm_mm_hole_node_end(entry);
 		hole_size = hole_end - hole_start;
-		seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n",
-				hole_start, hole_end, hole_size);
+		seq_printf(m, "%#llx-%#llx: %llu: free\n", hole_start,
+			   hole_end, hole_size);
 		return hole_size;
 	}
 
@@ -835,20 +841,20 @@ static unsigned long drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *en
 int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
 {
 	struct drm_mm_node *entry;
-	unsigned long total_used = 0, total_free = 0, total = 0;
+	u64 total_used = 0, total_free = 0, total = 0;
 
 	total_free += drm_mm_dump_hole(m, &mm->head_node);
 
 	drm_mm_for_each_node(entry, mm) {
-		seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: used\n",
-				entry->start, entry->start + entry->size,
-				entry->size);
+		seq_printf(m, "%#016llx-%#016llx: %llu: used\n", entry->start,
+			   entry->start + entry->size, entry->size);
 		total_used += entry->size;
 		total_free += drm_mm_dump_hole(m, entry);
 	}
 	total = total_free + total_used;
 
-	seq_printf(m, "total: %lu, used %lu free %lu\n", total, total_used, total_free);
+	seq_printf(m, "total: %llu, used %llu free %llu\n", total,
+		   total_used, total_free);
 	return 0;
 }
 EXPORT_SYMBOL(drm_mm_dump_table);

drivers/gpu/drm/i915/i915_debugfs.c

@@ -152,12 +152,12 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 			seq_puts(m, " (pp");
 		else
 			seq_puts(m, " (g");
-		seq_printf(m, "gtt offset: %08lx, size: %08lx, type: %u)",
+		seq_printf(m, "gtt offset: %08llx, size: %08llx, type: %u)",
 			   vma->node.start, vma->node.size,
 			   vma->ggtt_view.type);
 	}
 	if (obj->stolen)
-		seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
+		seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
 	if (obj->pin_mappable || obj->fault_mappable) {
 		char s[3], *t = s;
 		if (obj->pin_mappable)

drivers/gpu/drm/i915/i915_drv.c

@@ -622,7 +622,7 @@ static int i915_drm_suspend(struct drm_device *dev)
 	return 0;
 }
 
-static int i915_drm_suspend_late(struct drm_device *drm_dev)
+static int i915_drm_suspend_late(struct drm_device *drm_dev, bool hibernation)
 {
 	struct drm_i915_private *dev_priv = drm_dev->dev_private;
 	int ret;
@@ -636,7 +636,17 @@ static int i915_drm_suspend_late(struct drm_device *drm_dev)
 	}
 
 	pci_disable_device(drm_dev->pdev);
-	pci_set_power_state(drm_dev->pdev, PCI_D3hot);
+	/*
+	 * During hibernation on some GEN4 platforms the BIOS may try to access
+	 * the device even though it's already in D3 and hang the machine. So
+	 * leave the device in D0 on those platforms and hope the BIOS will
+	 * power down the device properly. Platforms where this was seen:
+	 * Lenovo Thinkpad X301, X61s
+	 */
+	if (!(hibernation &&
+	      drm_dev->pdev->subsystem_vendor == PCI_VENDOR_ID_LENOVO &&
+	      INTEL_INFO(dev_priv)->gen == 4))
+		pci_set_power_state(drm_dev->pdev, PCI_D3hot);
 
 	return 0;
 }
@@ -662,7 +672,7 @@ int i915_suspend_legacy(struct drm_device *dev, pm_message_t state)
 	if (error)
 		return error;
 
-	return i915_drm_suspend_late(dev);
+	return i915_drm_suspend_late(dev, false);
 }
 
 static int i915_drm_resume(struct drm_device *dev)
@@ -950,7 +960,17 @@ static int i915_pm_suspend_late(struct device *dev)
 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	return i915_drm_suspend_late(drm_dev);
+	return i915_drm_suspend_late(drm_dev, false);
+}
+
+static int i915_pm_poweroff_late(struct device *dev)
+{
+	struct drm_device *drm_dev = dev_to_i915(dev)->dev;
+
+	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	return i915_drm_suspend_late(drm_dev, true);
 }
 
 static int i915_pm_resume_early(struct device *dev)
@@ -1520,7 +1540,7 @@ static const struct dev_pm_ops i915_pm_ops = {
 	.thaw_early = i915_pm_resume_early,
 	.thaw = i915_pm_resume,
 	.poweroff = i915_pm_suspend,
-	.poweroff_late = i915_pm_suspend_late,
+	.poweroff_late = i915_pm_poweroff_late,
 	.restore_early = i915_pm_resume_early,
 	.restore = i915_pm_resume,
 

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -1145,7 +1145,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
 
 	ppgtt->base.clear_range(&ppgtt->base, 0, ppgtt->base.total, true);
 
-	DRM_DEBUG_DRIVER("Allocated pde space (%ldM) at GTT entry: %lx\n",
+	DRM_DEBUG_DRIVER("Allocated pde space (%lldM) at GTT entry: %llx\n",
 			 ppgtt->node.size >> 20,
 			 ppgtt->node.start / PAGE_SIZE);
 
@@ -1713,8 +1713,8 @@ void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj)
 
 static void i915_gtt_color_adjust(struct drm_mm_node *node,
 				  unsigned long color,
-				  unsigned long *start,
-				  unsigned long *end)
+				  u64 *start,
+				  u64 *end)
 {
 	if (node->color != color)
 		*start += 4096;

drivers/gpu/drm/i915/intel_fifo_underrun.c

@@ -282,16 +282,6 @@ bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 	return ret;
 }
 
-static bool
-__cpu_fifo_underrun_reporting_enabled(struct drm_i915_private *dev_priv,
-				      enum pipe pipe)
-{
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-
-	return !intel_crtc->cpu_fifo_underrun_disabled;
-}
-
 /**
  * intel_set_pch_fifo_underrun_reporting - set PCH fifo underrun reporting state
  * @dev_priv: i915 device instance
@@ -352,9 +342,15 @@ bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 					 enum pipe pipe)
 {
+	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+
+	/* We may be called too early in init, thanks BIOS! */
+	if (crtc == NULL)
+		return;
+
 	/* GMCH can't disable fifo underruns, filter them. */
 	if (HAS_GMCH_DISPLAY(dev_priv->dev) &&
-	    !__cpu_fifo_underrun_reporting_enabled(dev_priv, pipe))
+	    to_intel_crtc(crtc)->cpu_fifo_underrun_disabled)
 		return;
 
 	if (intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false))

drivers/gpu/drm/imx/dw_hdmi-imx.c

@@ -70,7 +70,9 @@ static const struct dw_hdmi_curr_ctrl imx_cur_ctr[] = {
 		118800000, { 0x091c, 0x091c, 0x06dc },
 	}, {
 		216000000, { 0x06dc, 0x0b5c, 0x091c },
-	}
+	}, {
+		~0UL, { 0x0000, 0x0000, 0x0000 },
+	},
 };
 
 static const struct dw_hdmi_sym_term imx_sym_term[] = {
@@ -136,11 +138,34 @@ static struct drm_encoder_funcs dw_hdmi_imx_encoder_funcs = {
 	.destroy = drm_encoder_cleanup,
 };
 
+static enum drm_mode_status imx6q_hdmi_mode_valid(struct drm_connector *con,
+						  struct drm_display_mode *mode)
+{
+	if (mode->clock < 13500)
+		return MODE_CLOCK_LOW;
+	if (mode->clock > 266000)
+		return MODE_CLOCK_HIGH;
+
+	return MODE_OK;
+}
+
+static enum drm_mode_status imx6dl_hdmi_mode_valid(struct drm_connector *con,
+						   struct drm_display_mode *mode)
+{
+	if (mode->clock < 13500)
+		return MODE_CLOCK_LOW;
+	if (mode->clock > 270000)
+		return MODE_CLOCK_HIGH;
+
+	return MODE_OK;
+}
+
 static struct dw_hdmi_plat_data imx6q_hdmi_drv_data = {
-	.mpll_cfg = imx_mpll_cfg,
-	.cur_ctr  = imx_cur_ctr,
-	.sym_term = imx_sym_term,
-	.dev_type = IMX6Q_HDMI,
+	.mpll_cfg   = imx_mpll_cfg,
+	.cur_ctr    = imx_cur_ctr,
+	.sym_term   = imx_sym_term,
+	.dev_type   = IMX6Q_HDMI,
+	.mode_valid = imx6q_hdmi_mode_valid,
 };
 
 static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
@@ -148,6 +173,7 @@ static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
 	.cur_ctr  = imx_cur_ctr,
 	.sym_term = imx_sym_term,
 	.dev_type = IMX6DL_HDMI,
+	.mode_valid = imx6dl_hdmi_mode_valid,
 };
 
 static const struct of_device_id dw_hdmi_imx_dt_ids[] = {

drivers/gpu/drm/imx/imx-ldb.c

@@ -163,22 +163,7 @@ static void imx_ldb_encoder_prepare(struct drm_encoder *encoder)
 {
 	struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder);
 	struct imx_ldb *ldb = imx_ldb_ch->ldb;
-	struct drm_display_mode *mode = &encoder->crtc->hwmode;
 	u32 pixel_fmt;
-	unsigned long serial_clk;
-	unsigned long di_clk = mode->clock * 1000;
-	int mux = imx_drm_encoder_get_mux_id(imx_ldb_ch->child, encoder);
-
-	if (ldb->ldb_ctrl & LDB_SPLIT_MODE_EN) {
-		/* dual channel LVDS mode */
-		serial_clk = 3500UL * mode->clock;
-		imx_ldb_set_clock(ldb, mux, 0, serial_clk, di_clk);
-		imx_ldb_set_clock(ldb, mux, 1, serial_clk, di_clk);
-	} else {
-		serial_clk = 7000UL * mode->clock;
-		imx_ldb_set_clock(ldb, mux, imx_ldb_ch->chno, serial_clk,
-				di_clk);
-	}
 
 	switch (imx_ldb_ch->chno) {
 	case 0:
@@ -247,6 +232,9 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder,
 	struct imx_ldb_channel *imx_ldb_ch = enc_to_imx_ldb_ch(encoder);
 	struct imx_ldb *ldb = imx_ldb_ch->ldb;
 	int dual = ldb->ldb_ctrl & LDB_SPLIT_MODE_EN;
+	unsigned long serial_clk;
+	unsigned long di_clk = mode->clock * 1000;
+	int mux = imx_drm_encoder_get_mux_id(imx_ldb_ch->child, encoder);
 
 	if (mode->clock > 170000) {
 		dev_warn(ldb->dev,
@@ -257,6 +245,16 @@ static void imx_ldb_encoder_mode_set(struct drm_encoder *encoder,
 			 "%s: mode exceeds 85 MHz pixel clock\n", __func__);
 	}
 
+	if (dual) {
+		serial_clk = 3500UL * mode->clock;
+		imx_ldb_set_clock(ldb, mux, 0, serial_clk, di_clk);
+		imx_ldb_set_clock(ldb, mux, 1, serial_clk, di_clk);
+	} else {
+		serial_clk = 7000UL * mode->clock;
+		imx_ldb_set_clock(ldb, mux, imx_ldb_ch->chno, serial_clk,
+				  di_clk);
+	}
+
 	/* FIXME - assumes straight connections DI0 --> CH0, DI1 --> CH1 */
 	if (imx_ldb_ch == &ldb->channel[0]) {
 		if (mode->flags & DRM_MODE_FLAG_NVSYNC)

drivers/gpu/drm/imx/parallel-display.c

@@ -236,8 +236,11 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 	}
 
 	panel_node = of_parse_phandle(np, "fsl,panel", 0);
-	if (panel_node)
+	if (panel_node) {
 		imxpd->panel = of_drm_find_panel(panel_node);
+		if (!imxpd->panel)
+			return -EPROBE_DEFER;
+	}
 
 	imxpd->dev = dev;
 

drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c

@@ -32,7 +32,10 @@ static void mdp4_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)
 void mdp4_irq_preinstall(struct msm_kms *kms)
 {
 	struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+	mdp4_enable(mdp4_kms);
 	mdp4_write(mdp4_kms, REG_MDP4_INTR_CLEAR, 0xffffffff);
+	mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, 0x00000000);
+	mdp4_disable(mdp4_kms);
 }
 
 int mdp4_irq_postinstall(struct msm_kms *kms)
@@ -53,7 +56,9 @@ int mdp4_irq_postinstall(struct msm_kms *kms)
 void mdp4_irq_uninstall(struct msm_kms *kms)
 {
 	struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+	mdp4_enable(mdp4_kms);
 	mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, 0x00000000);
+	mdp4_disable(mdp4_kms);
 }
 
 irqreturn_t mdp4_irq(struct msm_kms *kms)

drivers/gpu/drm/msm/mdp/mdp5/mdp5.xml.h

@@ -8,17 +8,9 @@ http://github.com/freedreno/envytools/
 git clone https://github.com/freedreno/envytools.git
 
 The rules-ng-ng source files this header was generated from are:
-- /home/robclark/src/freedreno/envytools/rnndb/msm.xml                 (    676 bytes, from 2014-12-05 15:34:49)
-- /home/robclark/src/freedreno/envytools/rnndb/freedreno_copyright.xml (   1453 bytes, from 2013-03-31 16:51:27)
-- /home/robclark/src/freedreno/envytools/rnndb/mdp/mdp4.xml            (  20908 bytes, from 2014-12-08 16:13:00)
-- /home/robclark/src/freedreno/envytools/rnndb/mdp/mdp_common.xml      (   2357 bytes, from 2014-12-08 16:13:00)
-- /home/robclark/src/freedreno/envytools/rnndb/mdp/mdp5.xml            (  27208 bytes, from 2015-01-13 23:56:11)
-- /home/robclark/src/freedreno/envytools/rnndb/dsi/dsi.xml             (  11712 bytes, from 2013-08-17 17:13:43)
-- /home/robclark/src/freedreno/envytools/rnndb/dsi/sfpb.xml            (    344 bytes, from 2013-08-11 19:26:32)
-- /home/robclark/src/freedreno/envytools/rnndb/dsi/mmss_cc.xml         (   1686 bytes, from 2014-10-31 16:48:57)
-- /home/robclark/src/freedreno/envytools/rnndb/hdmi/qfprom.xml         (    600 bytes, from 2013-07-05 19:21:12)
-- /home/robclark/src/freedreno/envytools/rnndb/hdmi/hdmi.xml           (  26848 bytes, from 2015-01-13 23:55:57)
-- /home/robclark/src/freedreno/envytools/rnndb/edp/edp.xml             (   8253 bytes, from 2014-12-08 16:13:00)
+- /local/mnt2/workspace2/sviau/envytools/rnndb/mdp/mdp5.xml            (  27229 bytes, from 2015-02-10 17:00:41)
+- /local/mnt2/workspace2/sviau/envytools/rnndb/freedreno_copyright.xml (   1453 bytes, from 2014-06-02 18:31:15)
+- /local/mnt2/workspace2/sviau/envytools/rnndb/mdp/mdp_common.xml      (   2357 bytes, from 2015-01-23 16:20:19)
 
 Copyright (C) 2013-2015 by the following authors:
 - Rob Clark <robdclark@gmail.com> (robclark)
@@ -910,6 +902,7 @@ static inline uint32_t __offset_LM(uint32_t idx)
 		case 2: return (mdp5_cfg->lm.base[2]);
 		case 3: return (mdp5_cfg->lm.base[3]);
 		case 4: return (mdp5_cfg->lm.base[4]);
+		case 5: return (mdp5_cfg->lm.base[5]);
 		default: return INVALID_IDX(idx);
 	}
 }

drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c

@@ -62,8 +62,8 @@ struct mdp5_crtc {
 
 		/* current cursor being scanned out: */
 		struct drm_gem_object *scanout_bo;
-		uint32_t width;
-		uint32_t height;
+		uint32_t width, height;
+		uint32_t x, y;
 	} cursor;
 };
 #define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base)
@@ -103,8 +103,8 @@ static void crtc_flush_all(struct drm_crtc *crtc)
 	struct drm_plane *plane;
 	uint32_t flush_mask = 0;
 
-	/* we could have already released CTL in the disable path: */
-	if (!mdp5_crtc->ctl)
+	/* this should not happen: */
+	if (WARN_ON(!mdp5_crtc->ctl))
 		return;
 
 	drm_atomic_crtc_for_each_plane(plane, crtc) {
@@ -143,6 +143,11 @@ static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
 	drm_atomic_crtc_for_each_plane(plane, crtc) {
 		mdp5_plane_complete_flip(plane);
 	}
+
+	if (mdp5_crtc->ctl && !crtc->state->enable) {
+		mdp5_ctl_release(mdp5_crtc->ctl);
+		mdp5_crtc->ctl = NULL;
+	}
 }
 
 static void unref_cursor_worker(struct drm_flip_work *work, void *val)
@@ -386,14 +391,17 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc)
 	mdp5_crtc->event = crtc->state->event;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
+	/*
+	 * If no CTL has been allocated in mdp5_crtc_atomic_check(),
+	 * it means we are trying to flush a CRTC whose state is disabled:
+	 * nothing else needs to be done.
+	 */
+	if (unlikely(!mdp5_crtc->ctl))
+		return;
+
 	blend_setup(crtc);
 	crtc_flush_all(crtc);
 	request_pending(crtc, PENDING_FLIP);
-
-	if (mdp5_crtc->ctl && !crtc->state->enable) {
-		mdp5_ctl_release(mdp5_crtc->ctl);
-		mdp5_crtc->ctl = NULL;
-	}
 }
 
 static int mdp5_crtc_set_property(struct drm_crtc *crtc,
@@ -403,6 +411,32 @@ static int mdp5_crtc_set_property(struct drm_crtc *crtc,
 	return -EINVAL;
 }
 
+static void get_roi(struct drm_crtc *crtc, uint32_t *roi_w, uint32_t *roi_h)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	uint32_t xres = crtc->mode.hdisplay;
+	uint32_t yres = crtc->mode.vdisplay;
+
+	/*
+	 * Cursor Region Of Interest (ROI) is a plane read from cursor
+	 * buffer to render. The ROI region is determined by the visibility of
+	 * the cursor point. In the default Cursor image the cursor point will
+	 * be at the top left of the cursor image, unless it is specified
+	 * otherwise using hotspot feature.
+	 *
+	 * If the cursor point reaches the right (xres - x < cursor.width) or
+	 * bottom (yres - y < cursor.height) boundary of the screen, then ROI
+	 * width and ROI height need to be evaluated to crop the cursor image
+	 * accordingly.
+	 * (xres-x) will be new cursor width when x > (xres - cursor.width)
+	 * (yres-y) will be new cursor height when y > (yres - cursor.height)
+	 */
+	*roi_w = min(mdp5_crtc->cursor.width, xres -
+			mdp5_crtc->cursor.x);
+	*roi_h = min(mdp5_crtc->cursor.height, yres -
+			mdp5_crtc->cursor.y);
+}
+
 static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 		struct drm_file *file, uint32_t handle,
 		uint32_t width, uint32_t height)
@@ -416,6 +450,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	unsigned int depth;
 	enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
 	uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
+	uint32_t roi_w, roi_h;
 	unsigned long flags;
 
 	if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
@@ -446,6 +481,12 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 	old_bo = mdp5_crtc->cursor.scanout_bo;
 
+	mdp5_crtc->cursor.scanout_bo = cursor_bo;
+	mdp5_crtc->cursor.width = width;
+	mdp5_crtc->cursor.height = height;
+
+	get_roi(crtc, &roi_w, &roi_h);
+
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
 			MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
@@ -453,19 +494,14 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 			MDP5_LM_CURSOR_IMG_SIZE_SRC_H(height) |
 			MDP5_LM_CURSOR_IMG_SIZE_SRC_W(width));
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
-			MDP5_LM_CURSOR_SIZE_ROI_H(height) |
-			MDP5_LM_CURSOR_SIZE_ROI_W(width));
+			MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
+			MDP5_LM_CURSOR_SIZE_ROI_W(roi_w));
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BASE_ADDR(lm), cursor_addr);
 
-
 	blendcfg = MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_EN;
-	blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_TRANSP_EN;
 	blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_ALPHA_SEL(cur_alpha);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BLEND_CONFIG(lm), blendcfg);
 
-	mdp5_crtc->cursor.scanout_bo = cursor_bo;
-	mdp5_crtc->cursor.width = width;
-	mdp5_crtc->cursor.height = height;
 	spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
 
 	ret = mdp5_ctl_set_cursor(mdp5_crtc->ctl, true);
@@ -489,31 +525,18 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
 	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
 	uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
-	uint32_t xres = crtc->mode.hdisplay;
-	uint32_t yres = crtc->mode.vdisplay;
 	uint32_t roi_w;
 	uint32_t roi_h;
 	unsigned long flags;
 
-	x = (x > 0) ? x : 0;
-	y = (y > 0) ? y : 0;
+	/* In case the CRTC is disabled, just drop the cursor update */
+	if (unlikely(!crtc->state->enable))
+		return 0;
 
-	/*
-	 * Cursor Region Of Interest (ROI) is a plane read from cursor
-	 * buffer to render. The ROI region is determined by the visiblity of
-	 * the cursor point. In the default Cursor image the cursor point will
-	 * be at the top left of the cursor image, unless it is specified
-	 * otherwise using hotspot feature.
-	 *
-	 * If the cursor point reaches the right (xres - x < cursor.width) or
-	 * bottom (yres - y < cursor.height) boundary of the screen, then ROI
-	 * width and ROI height need to be evaluated to crop the cursor image
-	 * accordingly.
-	 * (xres-x) will be new cursor width when x > (xres - cursor.width)
-	 * (yres-y) will be new cursor height when y > (yres - cursor.height)
-	 */
-	roi_w = min(mdp5_crtc->cursor.width, xres - x);
-	roi_h = min(mdp5_crtc->cursor.height, yres - y);
+	mdp5_crtc->cursor.x = x = max(x, 0);
+	mdp5_crtc->cursor.y = y = max(y, 0);
+
+	get_roi(crtc, &roi_w, &roi_h);
 
 	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(mdp5_crtc->lm),
@@ -544,8 +567,8 @@ static const struct drm_crtc_funcs mdp5_crtc_funcs = {
 static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
 	.mode_fixup = mdp5_crtc_mode_fixup,
 	.mode_set_nofb = mdp5_crtc_mode_set_nofb,
-	.prepare = mdp5_crtc_disable,
-	.commit = mdp5_crtc_enable,
+	.disable = mdp5_crtc_disable,
+	.enable = mdp5_crtc_enable,
 	.atomic_check = mdp5_crtc_atomic_check,
 	.atomic_begin = mdp5_crtc_atomic_begin,
 	.atomic_flush = mdp5_crtc_atomic_flush,

drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c

@@ -267,14 +267,14 @@ static void mdp5_encoder_enable(struct drm_encoder *encoder)
 	mdp5_write(mdp5_kms, REG_MDP5_INTF_TIMING_ENGINE_EN(intf), 1);
 	spin_unlock_irqrestore(&mdp5_encoder->intf_lock, flags);
 
-	mdp5_encoder->enabled = false;
+	mdp5_encoder->enabled = true;
 }
 
 static const struct drm_encoder_helper_funcs mdp5_encoder_helper_funcs = {
 	.mode_fixup = mdp5_encoder_mode_fixup,
 	.mode_set = mdp5_encoder_mode_set,
-	.prepare = mdp5_encoder_disable,
-	.commit = mdp5_encoder_enable,
+	.disable = mdp5_encoder_disable,
+	.enable = mdp5_encoder_enable,
 };
 
 /* initialize encoder */

drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c

@@ -34,7 +34,10 @@ static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus)
 void mdp5_irq_preinstall(struct msm_kms *kms)
 {
 	struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+	mdp5_enable(mdp5_kms);
 	mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, 0xffffffff);
+	mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
+	mdp5_disable(mdp5_kms);
 }
 
 int mdp5_irq_postinstall(struct msm_kms *kms)
@@ -57,7 +60,9 @@ int mdp5_irq_postinstall(struct msm_kms *kms)
 void mdp5_irq_uninstall(struct msm_kms *kms)
 {
 	struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+	mdp5_enable(mdp5_kms);
 	mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
+	mdp5_disable(mdp5_kms);
 }
 
 static void mdp5_irq_mdp(struct mdp_kms *mdp_kms)

drivers/gpu/drm/msm/msm_atomic.c

@@ -219,8 +219,10 @@ int msm_atomic_commit(struct drm_device *dev,
 	 * mark our set of crtc's as busy:
 	 */
 	ret = start_atomic(dev->dev_private, c->crtc_mask);
-	if (ret)
+	if (ret) {
+		kfree(c);
 		return ret;
+	}
 
 	/*
 	 * This is the point of no return - everything below never fails except

drivers/gpu/drm/nouveau/nouveau_fbcon.c

@@ -418,7 +418,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
 	nouveau_fbcon_zfill(dev, fbcon);
 
 	/* To allow resizeing without swapping buffers */
-	NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
+	NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
 		nouveau_fb->base.width, nouveau_fb->base.height,
 		nvbo->bo.offset, nvbo);
 

drivers/gpu/drm/radeon/atombios_crtc.c

@@ -1405,6 +1405,9 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	       (x << 16) | y);
 	viewport_w = crtc->mode.hdisplay;
 	viewport_h = (crtc->mode.vdisplay + 1) & ~1;
+	if ((rdev->family >= CHIP_BONAIRE) &&
+	    (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
+		viewport_h *= 2;
 	WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
 	       (viewport_w << 16) | viewport_h);
 

drivers/gpu/drm/radeon/atombios_encoders.c

@@ -1626,7 +1626,6 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 	struct radeon_connector *radeon_connector = NULL;
 	struct radeon_connector_atom_dig *radeon_dig_connector = NULL;
 	bool travis_quirk = false;
-	int encoder_mode;
 
 	if (connector) {
 		radeon_connector = to_radeon_connector(connector);
@@ -1722,13 +1721,6 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
 		}
 		break;
 	}
-
-	encoder_mode = atombios_get_encoder_mode(encoder);
-	if (connector && (radeon_audio != 0) &&
-	    ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
-	     (ENCODER_MODE_IS_DP(encoder_mode) &&
-	      drm_detect_monitor_audio(radeon_connector_edid(connector)))))
-		radeon_audio_dpms(encoder, mode);
 }
 
 static void
@@ -1737,10 +1729,19 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	int encoder_mode = atombios_get_encoder_mode(encoder);
 
 	DRM_DEBUG_KMS("encoder dpms %d to mode %d, devices %08x, active_devices %08x\n",
 		  radeon_encoder->encoder_id, mode, radeon_encoder->devices,
 		  radeon_encoder->active_device);
+
+	if (connector && (radeon_audio != 0) &&
+	    ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
+	     (ENCODER_MODE_IS_DP(encoder_mode) &&
+	      drm_detect_monitor_audio(radeon_connector_edid(connector)))))
+		radeon_audio_dpms(encoder, mode);
+
 	switch (radeon_encoder->encoder_id) {
 	case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
@@ -2170,12 +2171,6 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 		/* handled in dpms */
-		encoder_mode = atombios_get_encoder_mode(encoder);
-		if (connector && (radeon_audio != 0) &&
-		    ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
-		     (ENCODER_MODE_IS_DP(encoder_mode) &&
-		      drm_detect_monitor_audio(radeon_connector_edid(connector)))))
-			radeon_audio_mode_set(encoder, adjusted_mode);
 		break;
 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
@@ -2197,6 +2192,13 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
 	}
 
 	atombios_apply_encoder_quirks(encoder, adjusted_mode);
+
+	encoder_mode = atombios_get_encoder_mode(encoder);
+	if (connector && (radeon_audio != 0) &&
+	    ((encoder_mode == ATOM_ENCODER_MODE_HDMI) ||
+	     (ENCODER_MODE_IS_DP(encoder_mode) &&
+	      drm_detect_monitor_audio(radeon_connector_edid(connector)))))
+		radeon_audio_mode_set(encoder, adjusted_mode);
 }
 
 static bool

drivers/gpu/drm/radeon/cik.c

@@ -7555,6 +7555,9 @@ int cik_irq_set(struct radeon_device *rdev)
 	WREG32(DC_HPD5_INT_CONTROL, hpd5);
 	WREG32(DC_HPD6_INT_CONTROL, hpd6);
 
+	/* posting read */
+	RREG32(SRBM_STATUS);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/dce6_afmt.c

@@ -26,6 +26,9 @@
 #include "radeon_audio.h"
 #include "sid.h"
 
+#define DCE8_DCCG_AUDIO_DTO1_PHASE	0x05b8
+#define DCE8_DCCG_AUDIO_DTO1_MODULE	0x05bc
+
 u32 dce6_endpoint_rreg(struct radeon_device *rdev,
 			      u32 block_offset, u32 reg)
 {
@@ -252,72 +255,67 @@ void dce6_audio_enable(struct radeon_device *rdev,
 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
 	struct radeon_crtc *crtc, unsigned int clock)
 {
-    /* Two dtos; generally use dto0 for HDMI */
+	/* Two dtos; generally use dto0 for HDMI */
 	u32 value = 0;
 
-    if (crtc)
+	if (crtc)
 		value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 
 	WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 
-    /* Express [24MHz / target pixel clock] as an exact rational
-     * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
-     * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
-     */
-    WREG32(DCCG_AUDIO_DTO0_PHASE, 24000);
-    WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
+	/* Express [24MHz / target pixel clock] as an exact rational
+	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
+	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+	 */
+	WREG32(DCCG_AUDIO_DTO0_PHASE, 24000);
+	WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
 }
 
 void dce6_dp_audio_set_dto(struct radeon_device *rdev,
 	struct radeon_crtc *crtc, unsigned int clock)
 {
-    /* Two dtos; generally use dto1 for DP */
+	/* Two dtos; generally use dto1 for DP */
 	u32 value = 0;
 	value |= DCCG_AUDIO_DTO_SEL;
 
-    if (crtc)
+	if (crtc)
 		value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 
 	WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 
-    /* Express [24MHz / target pixel clock] as an exact rational
-     * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
-     * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
-     */
-    WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
-    WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
+	/* Express [24MHz / target pixel clock] as an exact rational
+	 * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
+	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
+	 */
+	if (ASIC_IS_DCE8(rdev)) {
+		WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000);
+		WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock);
+	} else {
+		WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
+		WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
+	}
 }
 
-void dce6_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable)
+void dce6_dp_enable(struct drm_encoder *encoder, bool enable)
 {
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	uint32_t offset;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	offset = dig->afmt->offset;
-
 	if (enable) {
-        if (dig->afmt->enabled)
-            return;
-
-		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + offset, EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset,
-			EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
-			EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
-			EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
-			EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
-		radeon_audio_enable(rdev, dig->afmt->pin, true);
+		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
+		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
+		       EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
+		       EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
+		       EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
+		       EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
 	} else {
-		if (!dig->afmt->enabled)
-			return;
-
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset, 0);
-		radeon_audio_enable(rdev, dig->afmt->pin, false);
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
 	}
 
 	dig->afmt->enabled = enable;

drivers/gpu/drm/radeon/evergreen.c

@@ -4593,6 +4593,9 @@ int evergreen_irq_set(struct radeon_device *rdev)
 	WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, afmt5);
 	WREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, afmt6);
 
+	/* posting read */
+	RREG32(SRBM_STATUS);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/evergreen_hdmi.c

@@ -272,7 +272,7 @@ void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
 }
 
 void dce4_dp_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock)
+			   struct radeon_crtc *crtc, unsigned int clock)
 {
 	u32 value;
 
@@ -294,7 +294,7 @@ void dce4_dp_audio_set_dto(struct radeon_device *rdev,
 	 * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 	 */
 	WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
-	WREG32(DCCG_AUDIO_DTO1_MODULE, rdev->clock.max_pixel_clock * 10);
+	WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 }
 
 void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset)
@@ -350,20 +350,9 @@ void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset)
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 
-	WREG32(HDMI_INFOFRAME_CONTROL0 + offset,
-		HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
-		HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
-
 	WREG32(AFMT_INFOFRAME_CONTROL0 + offset,
 		AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be updated */
 
-	WREG32(HDMI_INFOFRAME_CONTROL1 + offset,
-		HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */
-
-	WREG32(HDMI_AUDIO_PACKET_CONTROL + offset,
-		HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
-		HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
-
 	WREG32(AFMT_60958_0 + offset,
 		AFMT_60958_CS_CHANNEL_NUMBER_L(1));
 
@@ -408,15 +397,19 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
 	if (!dig || !dig->afmt)
 		return;
 
-	/* Silent, r600_hdmi_enable will raise WARN for us */
-	if (enable && dig->afmt->enabled)
-		return;
-	if (!enable && !dig->afmt->enabled)
-		return;
+	if (enable) {
+		WREG32(HDMI_INFOFRAME_CONTROL1 + dig->afmt->offset,
+		       HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */
+
+		WREG32(HDMI_AUDIO_PACKET_CONTROL + dig->afmt->offset,
+		       HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
+		       HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
 
-	if (!enable && dig->afmt->pin) {
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
-		dig->afmt->pin = NULL;
+		WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
+		       HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
+		       HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
+	} else {
+		WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, 0);
 	}
 
 	dig->afmt->enabled = enable;
@@ -425,33 +418,28 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
 		  enable ? "En" : "Dis", dig->afmt->offset, radeon_encoder->encoder_id);
 }
 
-void evergreen_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable)
+void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
 {
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-	uint32_t offset;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	offset = dig->afmt->offset;
-
 	if (enable) {
 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 		struct radeon_connector_atom_dig *dig_connector;
 		uint32_t val;
 
-		if (dig->afmt->enabled)
-			return;
-
-		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + offset, EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
+		WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
+		       EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
 
 		if (radeon_connector->con_priv) {
 			dig_connector = radeon_connector->con_priv;
-			val = RREG32(EVERGREEN_DP_SEC_AUD_N + offset);
+			val = RREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset);
 			val &= ~EVERGREEN_DP_SEC_N_BASE_MULTIPLE(0xf);
 
 			if (dig_connector->dp_clock == 162000)
@@ -459,21 +447,16 @@ void evergreen_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable)
 			else
 				val |= EVERGREEN_DP_SEC_N_BASE_MULTIPLE(5);
 
-			WREG32(EVERGREEN_DP_SEC_AUD_N + offset, val);
+			WREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset, val);
 		}
 
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset,
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
 			EVERGREEN_DP_SEC_ASP_ENABLE |		/* Audio packet transmission */
 			EVERGREEN_DP_SEC_ATP_ENABLE |		/* Audio timestamp packet transmission */
 			EVERGREEN_DP_SEC_AIP_ENABLE |		/* Audio infoframe packet transmission */
 			EVERGREEN_DP_SEC_STREAM_ENABLE);	/* Master enable for secondary stream engine */
-		radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 	} else {
-		if (!dig->afmt->enabled)
-			return;
-
-		WREG32(EVERGREEN_DP_SEC_CNTL + offset, 0);
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
+		WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
 	}
 
 	dig->afmt->enabled = enable;

drivers/gpu/drm/radeon/r100.c

@@ -728,6 +728,10 @@ int r100_irq_set(struct radeon_device *rdev)
 		tmp |= RADEON_FP2_DETECT_MASK;
 	}
 	WREG32(RADEON_GEN_INT_CNTL, tmp);
+
+	/* read back to post the write */
+	RREG32(RADEON_GEN_INT_CNTL);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/r600.c

@@ -3784,6 +3784,9 @@ int r600_irq_set(struct radeon_device *rdev)
 		WREG32(RV770_CG_THERMAL_INT, thermal_int);
 	}
 
+	/* posting read */
+	RREG32(R_000E50_SRBM_STATUS);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/r600_hdmi.c

@@ -476,17 +476,6 @@ void r600_hdmi_enable(struct drm_encoder *encoder, bool enable)
 	if (!dig || !dig->afmt)
 		return;
 
-	/* Silent, r600_hdmi_enable will raise WARN for us */
-	if (enable && dig->afmt->enabled)
-		return;
-	if (!enable && !dig->afmt->enabled)
-		return;
-
-	if (!enable && dig->afmt->pin) {
-		radeon_audio_enable(rdev, dig->afmt->pin, 0);
-		dig->afmt->pin = NULL;
-	}
-
 	/* Older chipsets require setting HDMI and routing manually */
 	if (!ASIC_IS_DCE3(rdev)) {
 		if (enable)

drivers/gpu/drm/radeon/radeon_audio.c

@@ -101,8 +101,8 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
 void r600_hdmi_enable(struct drm_encoder *encoder, bool enable);
 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
-void evergreen_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable);
-void dce6_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable);
+void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
+void dce6_dp_enable(struct drm_encoder *encoder, bool enable);
 
 static const u32 pin_offsets[7] =
 {
@@ -210,7 +210,7 @@ static struct radeon_audio_funcs dce4_dp_funcs = {
 	.set_avi_packet = evergreen_set_avi_packet,
 	.set_audio_packet = dce4_set_audio_packet,
 	.mode_set = radeon_audio_dp_mode_set,
-	.dpms = evergreen_enable_dp_audio_packets,
+	.dpms = evergreen_dp_enable,
 };
 
 static struct radeon_audio_funcs dce6_hdmi_funcs = {
@@ -240,7 +240,7 @@ static struct radeon_audio_funcs dce6_dp_funcs = {
 	.set_avi_packet = evergreen_set_avi_packet,
 	.set_audio_packet = dce4_set_audio_packet,
 	.mode_set = radeon_audio_dp_mode_set,
-	.dpms = dce6_enable_dp_audio_packets,
+	.dpms = dce6_dp_enable,
 };
 
 static void radeon_audio_interface_init(struct radeon_device *rdev)
@@ -452,7 +452,7 @@ void radeon_audio_enable(struct radeon_device *rdev,
 }
 
 void radeon_audio_detect(struct drm_connector *connector,
-	enum drm_connector_status status)
+			 enum drm_connector_status status)
 {
 	struct radeon_device *rdev;
 	struct radeon_encoder *radeon_encoder;
@@ -483,14 +483,11 @@ void radeon_audio_detect(struct drm_connector *connector,
 		else
 			radeon_encoder->audio = rdev->audio.hdmi_funcs;
 
-		radeon_audio_write_speaker_allocation(connector->encoder);
-		radeon_audio_write_sad_regs(connector->encoder);
-		if (connector->encoder->crtc)
-			radeon_audio_write_latency_fields(connector->encoder,
-				&connector->encoder->crtc->mode);
+		dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
 		radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 	} else {
 		radeon_audio_enable(rdev, dig->afmt->pin, 0);
+		dig->afmt->pin = NULL;
 	}
 }
 
@@ -694,23 +691,22 @@ static void radeon_audio_set_mute(struct drm_encoder *encoder, bool mute)
  * update the info frames with the data from the current display mode
  */
 static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
-	struct drm_display_mode *mode)
+				       struct drm_display_mode *mode)
 {
-	struct radeon_device *rdev = encoder->dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	/* disable audio prior to setting up hw */
-	dig->afmt->pin = radeon_audio_get_pin(encoder);
-	radeon_audio_enable(rdev, dig->afmt->pin, 0);
+	radeon_audio_set_mute(encoder, true);
 
+	radeon_audio_write_speaker_allocation(encoder);
+	radeon_audio_write_sad_regs(encoder);
+	radeon_audio_write_latency_fields(encoder, mode);
 	radeon_audio_set_dto(encoder, mode->clock);
 	radeon_audio_set_vbi_packet(encoder);
 	radeon_hdmi_set_color_depth(encoder);
-	radeon_audio_set_mute(encoder, false);
 	radeon_audio_update_acr(encoder, mode->clock);
 	radeon_audio_set_audio_packet(encoder);
 	radeon_audio_select_pin(encoder);
@@ -718,8 +714,7 @@ static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
 	if (radeon_audio_set_avi_packet(encoder, mode) < 0)
 		return;
 
-	/* enable audio after to setting up hw */
-	radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
+	radeon_audio_set_mute(encoder, false);
 }
 
 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
@@ -729,23 +724,26 @@ static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+	struct radeon_connector_atom_dig *dig_connector =
+		radeon_connector->con_priv;
 
 	if (!dig || !dig->afmt)
 		return;
 
-	/* disable audio prior to setting up hw */
-	dig->afmt->pin = radeon_audio_get_pin(encoder);
-	radeon_audio_enable(rdev, dig->afmt->pin, 0);
-
-	radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10);
+	radeon_audio_write_speaker_allocation(encoder);
+	radeon_audio_write_sad_regs(encoder);
+	radeon_audio_write_latency_fields(encoder, mode);
+	if (rdev->clock.dp_extclk || ASIC_IS_DCE5(rdev))
+		radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10);
+	else
+		radeon_audio_set_dto(encoder, dig_connector->dp_clock);
 	radeon_audio_set_audio_packet(encoder);
 	radeon_audio_select_pin(encoder);
 
 	if (radeon_audio_set_avi_packet(encoder, mode) < 0)
 		return;
-
-	/* enable audio after to setting up hw */
-	radeon_audio_enable(rdev, dig->afmt->pin, 0xf);
 }
 
 void radeon_audio_mode_set(struct drm_encoder *encoder,

drivers/gpu/drm/radeon/radeon_cs.c

@@ -256,11 +256,13 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 	u32 ring = RADEON_CS_RING_GFX;
 	s32 priority = 0;
 
+	INIT_LIST_HEAD(&p->validated);
+
 	if (!cs->num_chunks) {
 		return 0;
 	}
+
 	/* get chunks */
-	INIT_LIST_HEAD(&p->validated);
 	p->idx = 0;
 	p->ib.sa_bo = NULL;
 	p->const_ib.sa_bo = NULL;

drivers/gpu/drm/radeon/rs600.c

@@ -694,6 +694,10 @@ int rs600_irq_set(struct radeon_device *rdev)
 	WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
 	if (ASIC_IS_DCE2(rdev))
 		WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
+
+	/* posting read */
+	RREG32(R_000040_GEN_INT_CNTL);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/si.c

@@ -6203,6 +6203,9 @@ int si_irq_set(struct radeon_device *rdev)
 
 	WREG32(CG_THERMAL_INT, thermal_int);
 
+	/* posting read */
+	RREG32(SRBM_STATUS);
+
 	return 0;
 }
 

drivers/gpu/drm/radeon/sid.h

@@ -912,8 +912,8 @@
 
 #define DCCG_AUDIO_DTO0_PHASE                           0x05b0
 #define DCCG_AUDIO_DTO0_MODULE                          0x05b4
-#define DCCG_AUDIO_DTO1_PHASE                           0x05b8
-#define DCCG_AUDIO_DTO1_MODULE                          0x05bc
+#define DCCG_AUDIO_DTO1_PHASE                           0x05c0
+#define DCCG_AUDIO_DTO1_MODULE                          0x05c4
 
 #define AFMT_AUDIO_SRC_CONTROL                          0x713c
 #define		AFMT_AUDIO_SRC_SELECT(x)		(((x) & 7) << 0)

drivers/gpu/drm/ttm/ttm_bo.c

@@ -74,7 +74,7 @@ static void ttm_mem_type_debug(struct ttm_bo_device *bdev, int mem_type)
 	pr_err("    has_type: %d\n", man->has_type);
 	pr_err("    use_type: %d\n", man->use_type);
 	pr_err("    flags: 0x%08X\n", man->flags);
-	pr_err("    gpu_offset: 0x%08lX\n", man->gpu_offset);
+	pr_err("    gpu_offset: 0x%08llX\n", man->gpu_offset);
 	pr_err("    size: %llu\n", man->size);
 	pr_err("    available_caching: 0x%08X\n", man->available_caching);
 	pr_err("    default_caching: 0x%08X\n", man->default_caching);

drivers/gpu/ipu-v3/ipu-di.c

@@ -459,6 +459,8 @@ static void ipu_di_config_clock(struct ipu_di *di,
 
 		clkrate = clk_get_rate(di->clk_ipu);
 		div = DIV_ROUND_CLOSEST(clkrate, sig->mode.pixelclock);
+		if (div == 0)
+			div = 1;
 		rate = clkrate / div;
 
 		error = rate / (sig->mode.pixelclock / 1000);

drivers/i2c/busses/i2c-designware-baytrail.c

@@ -17,27 +17,31 @@
 #include <linux/acpi.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
+
 #include <asm/iosf_mbi.h>
+
 #include "i2c-designware-core.h"
 
 #define SEMAPHORE_TIMEOUT	100
 #define PUNIT_SEMAPHORE		0x7
+#define PUNIT_SEMAPHORE_BIT	BIT(0)
+#define PUNIT_SEMAPHORE_ACQUIRE	BIT(1)
 
 static unsigned long acquired;
 
 static int get_sem(struct device *dev, u32 *sem)
 {
-	u32 reg_val;
+	u32 data;
 	int ret;
 
 	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ, PUNIT_SEMAPHORE,
-			    &reg_val);
+				&data);
 	if (ret) {
 		dev_err(dev, "iosf failed to read punit semaphore\n");
 		return ret;
 	}
 
-	*sem = reg_val & 0x1;
+	*sem = data & PUNIT_SEMAPHORE_BIT;
 
 	return 0;
 }
@@ -52,27 +56,29 @@ static void reset_semaphore(struct device *dev)
 		return;
 	}
 
-	data = data & 0xfffffffe;
+	data &= ~PUNIT_SEMAPHORE_BIT;
 	if (iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
-				 PUNIT_SEMAPHORE, data))
+				PUNIT_SEMAPHORE, data))
 		dev_err(dev, "iosf failed to reset punit semaphore during write\n");
 }
 
-int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
+static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 {
-	u32 sem = 0;
+	u32 sem;
 	int ret;
 	unsigned long start, end;
 
+	might_sleep();
+
 	if (!dev || !dev->dev)
 		return -ENODEV;
 
-	if (!dev->acquire_lock)
+	if (!dev->release_lock)
 		return 0;
 
-	/* host driver writes 0x2 to side band semaphore register */
+	/* host driver writes to side band semaphore register */
 	ret = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
-				 PUNIT_SEMAPHORE, 0x2);
+				PUNIT_SEMAPHORE, PUNIT_SEMAPHORE_ACQUIRE);
 	if (ret) {
 		dev_err(dev->dev, "iosf punit semaphore request failed\n");
 		return ret;
@@ -81,7 +87,7 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 	/* host driver waits for bit 0 to be set in semaphore register */
 	start = jiffies;
 	end = start + msecs_to_jiffies(SEMAPHORE_TIMEOUT);
-	while (!time_after(jiffies, end)) {
+	do {
 		ret = get_sem(dev->dev, &sem);
 		if (!ret && sem) {
 			acquired = jiffies;
@@ -91,14 +97,14 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 		}
 
 		usleep_range(1000, 2000);
-	}
+	} while (time_before(jiffies, end));
 
 	dev_err(dev->dev, "punit semaphore timed out, resetting\n");
 	reset_semaphore(dev->dev);
 
 	ret = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
-		PUNIT_SEMAPHORE, &sem);
-	if (!ret)
+				PUNIT_SEMAPHORE, &sem);
+	if (ret)
 		dev_err(dev->dev, "iosf failed to read punit semaphore\n");
 	else
 		dev_err(dev->dev, "PUNIT SEM: %d\n", sem);
@@ -107,9 +113,8 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 
 	return -ETIMEDOUT;
 }
-EXPORT_SYMBOL(baytrail_i2c_acquire);
 
-void baytrail_i2c_release(struct dw_i2c_dev *dev)
+static void baytrail_i2c_release(struct dw_i2c_dev *dev)
 {
 	if (!dev || !dev->dev)
 		return;
@@ -121,7 +126,6 @@ void baytrail_i2c_release(struct dw_i2c_dev *dev)
 	dev_dbg(dev->dev, "punit semaphore held for %ums\n",
 		jiffies_to_msecs(jiffies - acquired));
 }
-EXPORT_SYMBOL(baytrail_i2c_release);
 
 int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
 {
@@ -137,7 +141,6 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
 		return 0;
 
 	status = acpi_evaluate_integer(handle, "_SEM", NULL, &shared_host);
-
 	if (ACPI_FAILURE(status))
 		return 0;
 
@@ -153,7 +156,6 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
 
 	return 0;
 }
-EXPORT_SYMBOL(i2c_dw_eval_lock_support);
 
 MODULE_AUTHOR("David E. Box <david.e.box@linux.intel.com>");
 MODULE_DESCRIPTION("Baytrail I2C Semaphore driver");

drivers/iio/adc/mcp3422.c

@@ -58,20 +58,11 @@
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ), \
 	}
 
-/* LSB is in nV to eliminate floating point */
-static const u32 rates_to_lsb[] = {1000000, 250000, 62500, 15625};
-
-/*
- *  scales calculated as:
- *  rates_to_lsb[sample_rate] / (1 << pga);
- *  pga is 1 for 0, 2
- */
-
 static const int mcp3422_scales[4][4] = {
-	{ 1000000, 250000, 62500, 15625 },
-	{ 500000 , 125000, 31250, 7812 },
-	{ 250000 , 62500 , 15625, 3906 },
-	{ 125000 , 31250 , 7812 , 1953 } };
+	{ 1000000, 500000, 250000, 125000 },
+	{ 250000 , 125000, 62500 , 31250  },
+	{ 62500  , 31250 , 15625 , 7812   },
+	{ 15625  , 7812  , 3906  , 1953   } };
 
 /* Constant msleep times for data acquisitions */
 static const int mcp3422_read_times[4] = {

drivers/iio/adc/qcom-spmi-iadc.c

@@ -296,7 +296,8 @@ static int iadc_do_conversion(struct iadc_chip *iadc, int chan, u16 *data)
 	if (iadc->poll_eoc) {
 		ret = iadc_poll_wait_eoc(iadc, wait);
 	} else {
-		ret = wait_for_completion_timeout(&iadc->complete, wait);
+		ret = wait_for_completion_timeout(&iadc->complete,
+			usecs_to_jiffies(wait));
 		if (!ret)
 			ret = -ETIMEDOUT;
 		else

drivers/iio/common/ssp_sensors/ssp_dev.c

@@ -640,6 +640,7 @@ static int ssp_remove(struct spi_device *spi)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int ssp_suspend(struct device *dev)
 {
 	int ret;
@@ -688,6 +689,7 @@ static int ssp_resume(struct device *dev)
 
 	return 0;
 }
+#endif /* CONFIG_PM_SLEEP */
 
 static const struct dev_pm_ops ssp_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(ssp_suspend, ssp_resume)

drivers/iio/dac/ad5686.c

@@ -322,7 +322,7 @@ static int ad5686_probe(struct spi_device *spi)
 	st = iio_priv(indio_dev);
 	spi_set_drvdata(spi, indio_dev);
 
-	st->reg = devm_regulator_get(&spi->dev, "vcc");
+	st->reg = devm_regulator_get_optional(&spi->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)

drivers/iio/humidity/dht11.c

@@ -29,6 +29,7 @@
 #include <linux/wait.h>
 #include <linux/bitops.h>
 #include <linux/completion.h>
+#include <linux/mutex.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
@@ -39,8 +40,12 @@
 
 #define DHT11_DATA_VALID_TIME	2000000000  /* 2s in ns */
 
-#define DHT11_EDGES_PREAMBLE 4
+#define DHT11_EDGES_PREAMBLE 2
 #define DHT11_BITS_PER_READ 40
+/*
+ * Note that when reading the sensor actually 84 edges are detected, but
+ * since the last edge is not significant, we only store 83:
+ */
 #define DHT11_EDGES_PER_READ (2*DHT11_BITS_PER_READ + DHT11_EDGES_PREAMBLE + 1)
 
 /* Data transmission timing (nano seconds) */
@@ -57,6 +62,7 @@ struct dht11 {
 	int				irq;
 
 	struct completion		completion;
+	struct mutex			lock;
 
 	s64				timestamp;
 	int				temperature;
@@ -88,7 +94,7 @@ static int dht11_decode(struct dht11 *dht11, int offset)
 	unsigned char temp_int, temp_dec, hum_int, hum_dec, checksum;
 
 	/* Calculate timestamp resolution */
-	for (i = 0; i < dht11->num_edges; ++i) {
+	for (i = 1; i < dht11->num_edges; ++i) {
 		t = dht11->edges[i].ts - dht11->edges[i-1].ts;
 		if (t > 0 && t < timeres)
 			timeres = t;
@@ -138,6 +144,27 @@ static int dht11_decode(struct dht11 *dht11, int offset)
 	return 0;
 }
 
+/*
+ * IRQ handler called on GPIO edges
+ */
+static irqreturn_t dht11_handle_irq(int irq, void *data)
+{
+	struct iio_dev *iio = data;
+	struct dht11 *dht11 = iio_priv(iio);
+
+	/* TODO: Consider making the handler safe for IRQ sharing */
+	if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) {
+		dht11->edges[dht11->num_edges].ts = iio_get_time_ns();
+		dht11->edges[dht11->num_edges++].value =
+						gpio_get_value(dht11->gpio);
+
+		if (dht11->num_edges >= DHT11_EDGES_PER_READ)
+			complete(&dht11->completion);
+	}
+
+	return IRQ_HANDLED;
+}
+
 static int dht11_read_raw(struct iio_dev *iio_dev,
 			const struct iio_chan_spec *chan,
 			int *val, int *val2, long m)
@@ -145,6 +172,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
 	struct dht11 *dht11 = iio_priv(iio_dev);
 	int ret;
 
+	mutex_lock(&dht11->lock);
 	if (dht11->timestamp + DHT11_DATA_VALID_TIME < iio_get_time_ns()) {
 		reinit_completion(&dht11->completion);
 
@@ -157,8 +185,17 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
 		if (ret)
 			goto err;
 
+		ret = request_irq(dht11->irq, dht11_handle_irq,
+				  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+				  iio_dev->name, iio_dev);
+		if (ret)
+			goto err;
+
 		ret = wait_for_completion_killable_timeout(&dht11->completion,
 								 HZ);
+
+		free_irq(dht11->irq, iio_dev);
+
 		if (ret == 0 && dht11->num_edges < DHT11_EDGES_PER_READ - 1) {
 			dev_err(&iio_dev->dev,
 					"Only %d signal edges detected\n",
@@ -185,6 +222,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
 		ret = -EINVAL;
 err:
 	dht11->num_edges = -1;
+	mutex_unlock(&dht11->lock);
 	return ret;
 }
 
@@ -193,27 +231,6 @@ static const struct iio_info dht11_iio_info = {
 	.read_raw		= dht11_read_raw,
 };
 
-/*
- * IRQ handler called on GPIO edges
-*/
-static irqreturn_t dht11_handle_irq(int irq, void *data)
-{
-	struct iio_dev *iio = data;
-	struct dht11 *dht11 = iio_priv(iio);
-
-	/* TODO: Consider making the handler safe for IRQ sharing */
-	if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) {
-		dht11->edges[dht11->num_edges].ts = iio_get_time_ns();
-		dht11->edges[dht11->num_edges++].value =
-						gpio_get_value(dht11->gpio);
-
-		if (dht11->num_edges >= DHT11_EDGES_PER_READ)
-			complete(&dht11->completion);
-	}
-
-	return IRQ_HANDLED;
-}
-
 static const struct iio_chan_spec dht11_chan_spec[] = {
 	{ .type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), },
@@ -256,11 +273,6 @@ static int dht11_probe(struct platform_device *pdev)
 		dev_err(dev, "GPIO %d has no interrupt\n", dht11->gpio);
 		return -EINVAL;
 	}
-	ret = devm_request_irq(dev, dht11->irq, dht11_handle_irq,
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				pdev->name, iio);
-	if (ret)
-		return ret;
 
 	dht11->timestamp = iio_get_time_ns() - DHT11_DATA_VALID_TIME - 1;
 	dht11->num_edges = -1;
@@ -268,6 +280,7 @@ static int dht11_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, iio);
 
 	init_completion(&dht11->completion);
+	mutex_init(&dht11->lock);
 	iio->name = pdev->name;
 	iio->dev.parent = &pdev->dev;
 	iio->info = &dht11_iio_info;