ARM: cns3xxx: fix allmodconfig panic in pci driver

The kernel panic occurs when running an allmodconfig kernel on
OMAP4460. The inicall "cns3xxx_pcie_init" does not check which
hardware it's running on and just tries to access to its specific
registers. Now call it from .init_late callback from the two
machine descriptors.

Signed-off-by: Xia Kaixu <kaixu.xia@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: linaro-kernel@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org

arch/arm/mach-cns3xxx/cns3420vb.c

@@ -250,5 +250,6 @@ MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board")
 	.init_irq	= cns3xxx_init_irq,
 	.init_time	= cns3xxx_timer_init,
 	.init_machine	= cns3420_init,
+	.init_late      = cns3xxx_pcie_init_late,
 	.restart	= cns3xxx_restart,
 MACHINE_END

arch/arm/mach-cns3xxx/core.c

@@ -404,5 +404,6 @@ DT_MACHINE_START(CNS3XXX_DT, "Cavium Networks CNS3xxx")
 	.init_irq	= cns3xxx_init_irq,
 	.init_time	= cns3xxx_timer_init,
 	.init_machine	= cns3xxx_init,
+	.init_late	= cns3xxx_pcie_init_late,
 	.restart	= cns3xxx_restart,
 MACHINE_END

arch/arm/mach-cns3xxx/core.h

@@ -21,6 +21,12 @@ void __init cns3xxx_l2x0_init(void);
 static inline void cns3xxx_l2x0_init(void) {}
 #endif /* CONFIG_CACHE_L2X0 */
 
+#ifdef CONFIG_PCI
+extern void __init cns3xxx_pcie_init_late(void);
+#else
+static inline void __init cns3xxx_pcie_init_late(void) {}
+#endif
+
 void __init cns3xxx_map_io(void);
 void __init cns3xxx_init_irq(void);
 void cns3xxx_power_off(void);

arch/arm/mach-cns3xxx/pcie.c

@@ -318,7 +318,7 @@ static int cns3xxx_pcie_abort_handler(unsigned long addr, unsigned int fsr,
 	return 0;
 }
 
-static int __init cns3xxx_pcie_init(void)
+void __init cns3xxx_pcie_init_late(void)
 {
 	int i;
 
@@ -337,7 +337,4 @@ static int __init cns3xxx_pcie_init(void)
 	}
 
 	pci_assign_unassigned_resources();
-
-	return 0;
 }
-device_initcall(cns3xxx_pcie_init);

drivers/cpufreq/Kconfig.arm

@@ -77,7 +77,7 @@ config ARM_EXYNOS5440_CPUFREQ
 
 config ARM_EXYNOS_CPU_FREQ_BOOST_SW
 	bool "EXYNOS Frequency Overclocking - Software"
-	depends on ARM_EXYNOS_CPUFREQ
+	depends on ARM_EXYNOS_CPUFREQ && THERMAL
 	select CPU_FREQ_BOOST_SW
 	select EXYNOS_THERMAL
 	help