Merge tag 'samsung-soc-4.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc

Samsung mach/soc changes for v4.18

1. Remove at24_platform_data in S3C2440.
2. Fix invalid SPDX identifier.
3. Remove Exynos5440 entirely.
4. Cleanups.
5. Remove static mapping of SCU SFR and rely on DTS.

* tag 'samsung-soc-4.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: exynos: Remove unused soc_is_exynos{4,5}
  ARM: exynos: Remove static mapping of SCU SFR
  ARM: exynos: no need to select ARCH_HAS_BANDGAP any longer
  ARM: exynos: Remove support for Exynos5440
  ARM: s3c24xx: Fix invalid SPDX identifier
  ARM: samsung: simplify getting .drvdata
  ARM: s3c24xx: mini2440: Use device properties for at24 eeprom

Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-exynos/Kconfig

@@ -8,7 +8,6 @@
 menuconfig ARCH_EXYNOS
 	bool "Samsung EXYNOS"
 	depends on ARCH_MULTI_V7
-	select ARCH_HAS_BANDGAP
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARM_AMBA
@@ -108,18 +107,6 @@ config SOC_EXYNOS5420
 	default y
 	depends on ARCH_EXYNOS5
 
-config SOC_EXYNOS5440
-	bool "SAMSUNG EXYNOS5440"
-	default y
-	depends on ARCH_EXYNOS5
-	select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
-	select HAVE_ARM_ARCH_TIMER
-	select AUTO_ZRELADDR
-	select PINCTRL_EXYNOS5440
-	select PM_OPP
-	help
-	  Enable EXYNOS5440 SoC support
-
 config SOC_EXYNOS5800
 	bool "SAMSUNG EXYNOS5800"
 	default y

arch/arm/mach-exynos/common.h

@@ -21,7 +21,6 @@
 #define EXYNOS5250_SOC_ID	0x43520000
 #define EXYNOS5410_SOC_ID	0xE5410000
 #define EXYNOS5420_SOC_ID	0xE5420000
-#define EXYNOS5440_SOC_ID	0xE5440000
 #define EXYNOS5800_SOC_ID	0xE5422000
 #define EXYNOS5_SOC_MASK	0xFFFFF000
 
@@ -39,7 +38,6 @@ IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
 IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
 IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK)
 IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK)
-IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
 IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK)
 
 #if defined(CONFIG_SOC_EXYNOS3250)
@@ -82,22 +80,12 @@ IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK)
 # define soc_is_exynos5420()	0
 #endif
 
-#if defined(CONFIG_SOC_EXYNOS5440)
-# define soc_is_exynos5440()	is_samsung_exynos5440()
-#else
-# define soc_is_exynos5440()	0
-#endif
-
 #if defined(CONFIG_SOC_EXYNOS5800)
 # define soc_is_exynos5800()	is_samsung_exynos5800()
 #else
 # define soc_is_exynos5800()	0
 #endif
 
-#define soc_is_exynos4() (soc_is_exynos4210() || soc_is_exynos4412())
-#define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5410() || \
-			  soc_is_exynos5420() || soc_is_exynos5800())
-
 extern u32 cp15_save_diag;
 extern u32 cp15_save_power;
 
@@ -149,6 +137,11 @@ extern void exynos_cpu_restore_register(void);
 extern void exynos_pm_central_suspend(void);
 extern int exynos_pm_central_resume(void);
 extern void exynos_enter_aftr(void);
+#ifdef CONFIG_SMP
+extern void exynos_scu_enable(void);
+#else
+static inline void exynos_scu_enable(void) { }
+#endif
 
 extern struct cpuidle_exynos_data cpuidle_coupled_exynos_data;
 

arch/arm/mach-exynos/exynos.c

@@ -24,15 +24,6 @@
 
 #include "common.h"
 
-static struct map_desc exynos4_iodesc[] __initdata = {
-	{
-		.virtual	= (unsigned long)S5P_VA_COREPERI_BASE,
-		.pfn		= __phys_to_pfn(EXYNOS4_PA_COREPERI),
-		.length		= SZ_8K,
-		.type		= MT_DEVICE,
-	},
-};
-
 static struct platform_device exynos_cpuidle = {
 	.name              = "exynos_cpuidle",
 #ifdef CONFIG_ARM_EXYNOS_CPUIDLE
@@ -63,15 +54,6 @@ void __init exynos_sysram_init(void)
 	}
 }
 
-static void __init exynos_init_late(void)
-{
-	if (of_machine_is_compatible("samsung,exynos5440"))
-		/* to be supported later */
-		return;
-
-	exynos_pm_init();
-}
-
 static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
 					int depth, void *data)
 {
@@ -79,8 +61,7 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
 	const __be32 *reg;
 	int len;
 
-	if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") &&
-		!of_flat_dt_is_compatible(node, "samsung,exynos5440-clock"))
+	if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid"))
 		return 0;
 
 	reg = of_get_flat_dt_prop(node, "reg", &len);
@@ -95,17 +76,6 @@ static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
 	return 1;
 }
 
-/*
- * exynos_map_io
- *
- * register the standard cpu IO areas
- */
-static void __init exynos_map_io(void)
-{
-	if (soc_is_exynos4())
-		iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
-}
-
 static void __init exynos_init_io(void)
 {
 	debug_ll_io_init();
@@ -114,8 +84,6 @@ static void __init exynos_init_io(void)
 
 	/* detect cpu id and rev. */
 	s5p_init_cpu(S5P_VA_CHIPID);
-
-	exynos_map_io();
 }
 
 /*
@@ -209,7 +177,6 @@ static char const *const exynos_dt_compat[] __initconst = {
 	"samsung,exynos5250",
 	"samsung,exynos5260",
 	"samsung,exynos5420",
-	"samsung,exynos5440",
 	NULL
 };
 
@@ -232,7 +199,7 @@ DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)")
 	.init_early	= exynos_firmware_init,
 	.init_irq	= exynos_init_irq,
 	.init_machine	= exynos_dt_machine_init,
-	.init_late	= exynos_init_late,
+	.init_late	= exynos_pm_init,
 	.dt_compat	= exynos_dt_compat,
 	.dt_fixup	= exynos_dt_fixup,
 MACHINE_END

arch/arm/mach-exynos/include/mach/map.h

@@ -15,6 +15,4 @@
 
 #define EXYNOS_PA_CHIPID		0x10000000
 
-#define EXYNOS4_PA_COREPERI		0x10500000
-
 #endif /* __ASM_ARCH_MAP_H */

arch/arm/mach-exynos/platsmp.c

@@ -163,6 +163,26 @@ int exynos_cluster_power_state(int cluster)
 		S5P_CORE_LOCAL_PWR_EN);
 }
 
+/**
+ * exynos_scu_enable : enables SCU for Cortex-A9 based system
+ */
+void exynos_scu_enable(void)
+{
+	struct device_node *np;
+	static void __iomem *scu_base;
+
+	if (!scu_base) {
+		np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
+		if (np) {
+			scu_base = of_iomap(np, 0);
+			of_node_put(np);
+		} else {
+			scu_base = ioremap(scu_a9_get_base(), SZ_4K);
+		}
+	}
+	scu_enable(scu_base);
+}
+
 static void __iomem *cpu_boot_reg_base(void)
 {
 	if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1)
@@ -219,11 +239,6 @@ static void write_pen_release(int val)
 	sync_cache_w(&pen_release);
 }
 
-static void __iomem *scu_base_addr(void)
-{
-	return (void __iomem *)(S5P_VA_SCU);
-}
-
 static DEFINE_SPINLOCK(boot_lock);
 
 static void exynos_secondary_init(unsigned int cpu)
@@ -389,7 +404,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
 	exynos_set_delayed_reset_assertion(true);
 
 	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
-		scu_enable(scu_base_addr());
+		exynos_scu_enable();
 
 	/*
 	 * Write the address of secondary startup into the

arch/arm/mach-exynos/pm.c

@@ -22,8 +22,6 @@
 #include <asm/suspend.h>
 #include <asm/cacheflush.h>
 
-#include <mach/map.h>
-
 #include "common.h"
 
 static inline void __iomem *exynos_boot_vector_addr(void)
@@ -172,7 +170,7 @@ void exynos_enter_aftr(void)
 	cpu_suspend(0, exynos_aftr_finisher);
 
 	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) {
-		scu_enable(S5P_VA_SCU);
+		exynos_scu_enable();
 		if (call_firmware_op(resume) == -ENOSYS)
 			exynos_cpu_restore_register();
 	}

arch/arm/mach-exynos/suspend.c

@@ -30,8 +30,6 @@
 #include <asm/smp_scu.h>
 #include <asm/suspend.h>
 
-#include <mach/map.h>
-
 #include <plat/pm-common.h>
 
 #include "common.h"
@@ -401,7 +399,7 @@ static void exynos_pm_resume(void)
 		goto early_wakeup;
 
 	if (cpuid == ARM_CPU_PART_CORTEX_A9)
-		scu_enable(S5P_VA_SCU);
+		exynos_scu_enable();
 
 	if (call_firmware_op(resume) == -ENOSYS
 	    && cpuid == ARM_CPU_PART_CORTEX_A9)

arch/arm/mach-s3c24xx/h1940-bluetooth.c

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-1.0
+// SPDX-License-Identifier: GPL-1.0+
 //
 // Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org>
 //

arch/arm/mach-s3c24xx/mach-mini2440.c

@@ -20,7 +20,7 @@
 #include <linux/serial_core.h>
 #include <linux/serial_s3c.h>
 #include <linux/dm9000.h>
-#include <linux/platform_data/at24.h>
+#include <linux/property.h>
 #include <linux/platform_device.h>
 #include <linux/gpio_keys.h>
 #include <linux/i2c.h>
@@ -481,15 +481,15 @@ static struct platform_device mini2440_audio = {
 /*
  * I2C devices
  */
-static struct at24_platform_data at24c08 = {
-	.byte_len	= SZ_8K / 8,
-	.page_size	= 16,
+static const struct property_entry mini2440_at24_properties[] = {
+	PROPERTY_ENTRY_U32("pagesize", 16),
+	{ }
 };
 
 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
 	{
 		I2C_BOARD_INFO("24c08", 0x50),
-		.platform_data = &at24c08,
+		.properties = mini2440_at24_properties,
 	},
 };
 

arch/arm/plat-samsung/adc.c

@@ -413,8 +413,7 @@ static int s3c_adc_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int s3c_adc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct adc_device *adc = platform_get_drvdata(pdev);
+	struct adc_device *adc = dev_get_drvdata(dev);
 	unsigned long flags;
 	u32 con;
 

arch/arm/plat-samsung/include/plat/map-s5p.h

@@ -11,10 +11,6 @@
 
 #define S5P_VA_CHIPID		S3C_ADDR(0x02000000)
 
-#define S5P_VA_COREPERI_BASE	S3C_ADDR(0x02800000)
-#define S5P_VA_COREPERI(x)	(S5P_VA_COREPERI_BASE + (x))
-#define S5P_VA_SCU		S5P_VA_COREPERI(0x0)
-
 #define VA_VIC(x)		(S3C_VA_IRQ + ((x) * 0x10000))
 #define VA_VIC0			VA_VIC(0)
 #define VA_VIC1			VA_VIC(1)