[PATCH v2 6/6] drivers: soc: Add support for Exynos PMU driver

[Pankaj Dubey]

This patch moves Exynos PMU driver implementation from "arm/mach-exynos"
to "drivers/soc/samsung". This driver is mainly used for setting misc
bits of register from PMU IP of Exynos SoC which will be required to
configure before Suspend/Resume. Currently all these settings are done
in "arch/arm/mach-exynos/pmu.c" but moving ahead for ARM64 based SoC
support, there is a need of this PMU driver in driver/* folder.

This driver uses existing DT binding information and there should
be no functionality change in the supported platforms.

CC: Linus Walleij <linus.walleij at linaro.org>
CC: Stephen Warren <swarren at nvidia.com>
CC: Andy Gross <agross at codeaurora.org>
CC: Santosh Shilimkar <santosh.shilimkar at ti.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel at samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey at samsung.com>
---
 arch/arm/mach-exynos/Kconfig                         |  1 +
 arch/arm/mach-exynos/Makefile                        |  4 +---
 drivers/soc/Kconfig                                  |  1 +
 drivers/soc/Makefile                                 |  1 +
 drivers/soc/samsung/Kconfig                          | 20 ++++++++++++++++++++
 drivers/soc/samsung/Makefile                         |  4 ++++
 .../pmu.c => drivers/soc/samsung/exynos-pmu.c        |  0
 .../mach-exynos => drivers/soc/samsung}/exynos-pmu.h |  0
 .../soc/samsung}/exynos3250-pmu.c                    |  0
 .../soc/samsung}/exynos4-pmu.c                       |  0
 .../soc/samsung}/exynos5250-pmu.c                    |  0
 .../soc/samsung}/exynos5420-pmu.c                    |  0
 12 files changed, 28 insertions(+), 3 deletions(-)
 create mode 100644 drivers/soc/samsung/Kconfig
 create mode 100644 drivers/soc/samsung/Makefile
 rename arch/arm/mach-exynos/pmu.c => drivers/soc/samsung/exynos-pmu.c (100%)
 rename {arch/arm/mach-exynos => drivers/soc/samsung}/exynos-pmu.h (100%)
 rename {arch/arm/mach-exynos => drivers/soc/samsung}/exynos3250-pmu.c (100%)
 rename {arch/arm/mach-exynos => drivers/soc/samsung}/exynos4-pmu.c (100%)
 rename {arch/arm/mach-exynos => drivers/soc/samsung}/exynos5250-pmu.c (100%)
 rename {arch/arm/mach-exynos => drivers/soc/samsung}/exynos5420-pmu.c (100%)

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 603820e..2e00b75 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -25,6 +25,7 @@ menuconfig ARCH_EXYNOS
 	select S5P_DEV_MFC
 	select SRAM
 	select MFD_SYSCON
+	select SOC_SAMSUNG
 	help
 	  Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5)
 
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 462df1b..b91b382 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -9,9 +9,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)
 
 # Core
 
-obj-$(CONFIG_ARCH_EXYNOS)	+= exynos.o pmu.o exynos-smc.o firmware.o \
-					exynos3250-pmu.o exynos4-pmu.o \
-					exynos5250-pmu.o exynos5420-pmu.o
+obj-$(CONFIG_ARCH_EXYNOS)	+= exynos.o exynos-smc.o firmware.o
 
 obj-$(CONFIG_EXYNOS_CPU_SUSPEND) += pm.o sleep.o
 obj-$(CONFIG_PM_SLEEP)		+= suspend.o
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 76d6bd4..c3abfbe 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -1,6 +1,7 @@
 menu "SOC (System On Chip) specific Drivers"
 
 source "drivers/soc/qcom/Kconfig"
+source "drivers/soc/samsung/Kconfig"
 source "drivers/soc/ti/Kconfig"
 source "drivers/soc/versatile/Kconfig"
 
diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index 063113d..620366f 100644
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -3,6 +3,7 @@
 #
 
 obj-$(CONFIG_ARCH_QCOM)		+= qcom/
+obj-$(CONFIG_SOC_SAMSUNG)	+= samsung/
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
 obj-$(CONFIG_SOC_TI)		+= ti/
 obj-$(CONFIG_PLAT_VERSATILE)	+= versatile/
diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig
new file mode 100644
index 0000000..6855cc4
--- /dev/null
+++ b/drivers/soc/samsung/Kconfig
@@ -0,0 +1,20 @@
+#
+# SAMSUNG SOC drivers
+#
+menu "Samsung SOC drivers support"
+
+config SOC_SAMSUNG
+	bool
+
+config EXYNOS_PMU
+	bool "Support Exynos Power Management Unit"
+	depends on ARCH_EXYNOS
+	default y
+	help
+	  Exynos SoC have Power Management Unit (PMU) which controls power and
+	  operation state of various components in Exynos SoC. This driver
+	  provides implementation of PMU driver and provides various
+	  functionality like initialisation and transition to various low power
+	  states.
+
+endmenu
diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile
new file mode 100644
index 0000000..d746a1d
--- /dev/null
+++ b/drivers/soc/samsung/Makefile
@@ -0,0 +1,4 @@
+ifdef CONFIG_ARM
+obj-$(CONFIG_EXYNOS_PMU)	+= exynos-pmu.o exynos3250-pmu.o exynos4-pmu.o \
+					exynos5250-pmu.o exynos5420-pmu.o
+endif
diff --git a/arch/arm/mach-exynos/pmu.c b/drivers/soc/samsung/exynos-pmu.c
similarity index 100%
rename from arch/arm/mach-exynos/pmu.c
rename to drivers/soc/samsung/exynos-pmu.c
diff --git a/arch/arm/mach-exynos/exynos-pmu.h b/drivers/soc/samsung/exynos-pmu.h
similarity index 100%
rename from arch/arm/mach-exynos/exynos-pmu.h
rename to drivers/soc/samsung/exynos-pmu.h
diff --git a/arch/arm/mach-exynos/exynos3250-pmu.c b/drivers/soc/samsung/exynos3250-pmu.c
similarity index 100%
rename from arch/arm/mach-exynos/exynos3250-pmu.c
rename to drivers/soc/samsung/exynos3250-pmu.c
diff --git a/arch/arm/mach-exynos/exynos4-pmu.c b/drivers/soc/samsung/exynos4-pmu.c
similarity index 100%
rename from arch/arm/mach-exynos/exynos4-pmu.c
rename to drivers/soc/samsung/exynos4-pmu.c
diff --git a/arch/arm/mach-exynos/exynos5250-pmu.c b/drivers/soc/samsung/exynos5250-pmu.c
similarity index 100%
rename from arch/arm/mach-exynos/exynos5250-pmu.c
rename to drivers/soc/samsung/exynos5250-pmu.c
diff --git a/arch/arm/mach-exynos/exynos5420-pmu.c b/drivers/soc/samsung/exynos5420-pmu.c
similarity index 100%
rename from arch/arm/mach-exynos/exynos5420-pmu.c
rename to drivers/soc/samsung/exynos5420-pmu.c
-- 
2.2.0