diff mbox

[v2,2/6] drivers: soc: Add support for Exynos PMU driver

Message ID 1415452601-13078-3-git-send-email-amit.daniel@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Amit Kachhap Nov. 8, 2014, 1:16 p.m. UTC 
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 DT based implementation of PMU driver.

This driver uses already existing DT binding information.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
---
 arch/arm/mach-exynos/Makefile                      |    2 +-
 drivers/soc/Kconfig                                |    1 +
 drivers/soc/Makefile                               |    1 +
 drivers/soc/samsung/Kconfig                        |   19 +++++++++++++++++++
 drivers/soc/samsung/Makefile                       |    1 +
 .../pmu.c => drivers/soc/samsung/exynos-pmu.c      |    0
 6 files changed, 23 insertions(+), 1 deletion(-)
 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%)

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

Comments

Pankaj Dubey Nov. 8, 2014, 5:15 p.m. UTC | #1 
Hi Amit,

On 8 November 2014 18:46, Amit Daniel Kachhap <amit.daniel@samsung.com> wrote:
> 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 DT based implementation of PMU driver.
>
> This driver uses already existing DT binding information.
>
> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
> ---
>  arch/arm/mach-exynos/Makefile                      |    2 +-
>  drivers/soc/Kconfig                                |    1 +
>  drivers/soc/Makefile                               |    1 +
>  drivers/soc/samsung/Kconfig                        |   19 +++++++++++++++++++
>  drivers/soc/samsung/Makefile                       |    1 +
>  .../pmu.c => drivers/soc/samsung/exynos-pmu.c      |    0
>  6 files changed, 23 insertions(+), 1 deletion(-)
>  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%)
>
> diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
> index bcefb54..b91b382 100644
> --- a/arch/arm/mach-exynos/Makefile
> +++ b/arch/arm/mach-exynos/Makefile
> @@ -9,7 +9,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)
>
>  # Core
>
> -obj-$(CONFIG_ARCH_EXYNOS)      += exynos.o pmu.o exynos-smc.o firmware.o
> +obj-$(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..90f33b9 100644
> --- a/drivers/soc/Kconfig
> +++ b/drivers/soc/Kconfig
> @@ -3,5 +3,6 @@ menu "SOC (System On Chip) specific Drivers"
>  source "drivers/soc/qcom/Kconfig"
>  source "drivers/soc/ti/Kconfig"
>  source "drivers/soc/versatile/Kconfig"
> +source "drivers/soc/samsung/Kconfig"
>
>  endmenu
> diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
> index 063113d..44d220d 100644
> --- a/drivers/soc/Makefile
> +++ b/drivers/soc/Makefile
> @@ -6,3 +6,4 @@ obj-$(CONFIG_ARCH_QCOM)         += qcom/
>  obj-$(CONFIG_ARCH_TEGRA)       += tegra/
>  obj-$(CONFIG_SOC_TI)           += ti/
>  obj-$(CONFIG_PLAT_VERSATILE)   += versatile/
> +obj-$(CONFIG_ARCH_EXYNOS)      += samsung/
> diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig
> new file mode 100644
> index 0000000..beb6dfc
> --- /dev/null
> +++ b/drivers/soc/samsung/Kconfig
> @@ -0,0 +1,19 @@
> +#
> +# SAMSUNG SOC drivers
> +#
> +menuconfig SOC_SAMSUNG
> +       bool "Samsung SOC drivers support"
> +
> +if SOC_SAMSUNG
> +
> +config MFD_EXYNOS_PMU

MFD_EXYNOS_PMU? I think it should be only EXYNOS_PMU,
as we are moving here in drivers/soc giving reason as it does not fit
into MFD.

> +       tristate "Support Exynos Power Management Unit"

I think this config should not be user visible config option, as I remember
same was pointed out by Tomasz some times back.

> +       depends on ARM || ARM64

How about only making depends on ARCH_EXYNOS?

> +       default y
> +       help
> +         Exynos SoC have Power Management Unit (PMU) which controls power and
> +         operation state of Exynos SoC in two different ways. This driver
> +         provides implementation of PMU driver and provides basic functionality
> +         required during these operation state.
> +
> +endif #SOC_SAMSUNG
> diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile
> new file mode 100644
> index 0000000..9d30f61
> --- /dev/null
> +++ b/drivers/soc/samsung/Makefile
> @@ -0,0 +1 @@
> +obj-$(CONFIG_MFD_EXYNOS_PMU)   += exynos-pmu.o
> 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
> --
> 1.7.9.5
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Amit Kachhap Nov. 10, 2014, 5:07 a.m. UTC | #2 
On Sat, Nov 8, 2014 at 10:45 PM, Pankaj Dubey <pankaj.dubey@samsung.com> wrote:
> Hi Amit,
>
> On 8 November 2014 18:46, Amit Daniel Kachhap <amit.daniel@samsung.com> wrote:
>> 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 DT based implementation of PMU driver.
>>
>> This driver uses already existing DT binding information.
>>
>> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
>> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
>> ---
>>  arch/arm/mach-exynos/Makefile                      |    2 +-
>>  drivers/soc/Kconfig                                |    1 +
>>  drivers/soc/Makefile                               |    1 +
>>  drivers/soc/samsung/Kconfig                        |   19 +++++++++++++++++++
>>  drivers/soc/samsung/Makefile                       |    1 +
>>  .../pmu.c => drivers/soc/samsung/exynos-pmu.c      |    0
>>  6 files changed, 23 insertions(+), 1 deletion(-)
>>  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%)
>>
>> diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
>> index bcefb54..b91b382 100644
>> --- a/arch/arm/mach-exynos/Makefile
>> +++ b/arch/arm/mach-exynos/Makefile
>> @@ -9,7 +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
>> +obj-$(CONFIG_ARCH_EXYNOS)      += exynos.o exynos-smc.o firmware.o
>>
>>  obj-$(CONFIG_EXYNOS_CPU_SUSPEND) += pm.o sleep.o
>>  obj-$(CONFIG_PM_SLEEP)         += suspend.o
>> diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
>> index 76d6bd4..90f33b9 100644
>> --- a/drivers/soc/Kconfig
>> +++ b/drivers/soc/Kconfig
>> @@ -3,5 +3,6 @@ menu "SOC (System On Chip) specific Drivers"
>>  source "drivers/soc/qcom/Kconfig"
>>  source "drivers/soc/ti/Kconfig"
>>  source "drivers/soc/versatile/Kconfig"
>> +source "drivers/soc/samsung/Kconfig"
>>
>>  endmenu
>> diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
>> index 063113d..44d220d 100644
>> --- a/drivers/soc/Makefile
>> +++ b/drivers/soc/Makefile
>> @@ -6,3 +6,4 @@ obj-$(CONFIG_ARCH_QCOM)         += qcom/
>>  obj-$(CONFIG_ARCH_TEGRA)       += tegra/
>>  obj-$(CONFIG_SOC_TI)           += ti/
>>  obj-$(CONFIG_PLAT_VERSATILE)   += versatile/
>> +obj-$(CONFIG_ARCH_EXYNOS)      += samsung/
>> diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig
>> new file mode 100644
>> index 0000000..beb6dfc
>> --- /dev/null
>> +++ b/drivers/soc/samsung/Kconfig
>> @@ -0,0 +1,19 @@
>> +#
>> +# SAMSUNG SOC drivers
>> +#
>> +menuconfig SOC_SAMSUNG
>> +       bool "Samsung SOC drivers support"
>> +
>> +if SOC_SAMSUNG
>> +
>> +config MFD_EXYNOS_PMU
>
> MFD_EXYNOS_PMU? I think it should be only EXYNOS_PMU,
> as we are moving here in drivers/soc giving reason as it does not fit
> into MFD.
>
>> +       tristate "Support Exynos Power Management Unit"
>
> I think this config should not be user visible config option, as I remember
> same was pointed out by Tomasz some times back.
I agree to some extent so set its property to default yes. But as this
is now a platform driver so I let it visible.
>
>> +       depends on ARM || ARM64
>
> How about only making depends on ARCH_EXYNOS?
Right makes sense. Will post v3 with this change.

Regards,
Amit
>
>> +       default y
>> +       help
>> +         Exynos SoC have Power Management Unit (PMU) which controls power and
>> +         operation state of Exynos SoC in two different ways. This driver
>> +         provides implementation of PMU driver and provides basic functionality
>> +         required during these operation state.
>> +
>> +endif #SOC_SAMSUNG
>> diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile
>> new file mode 100644
>> index 0000000..9d30f61
>> --- /dev/null
>> +++ b/drivers/soc/samsung/Makefile
>> @@ -0,0 +1 @@
>> +obj-$(CONFIG_MFD_EXYNOS_PMU)   += exynos-pmu.o
>> 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
>> --
>> 1.7.9.5
>>
>>
>> _______________________________________________
>> linux-arm-kernel mailing list
>> linux-arm-kernel@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> --
> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
> the body of a message to majordomo@vger.kernel.org
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diff mbox

Patch

diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index bcefb54..b91b382 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -9,7 +9,7 @@  ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)
 
 # Core
 
-obj-$(CONFIG_ARCH_EXYNOS)	+= exynos.o pmu.o exynos-smc.o firmware.o
+obj-$(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..90f33b9 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -3,5 +3,6 @@  menu "SOC (System On Chip) specific Drivers"
 source "drivers/soc/qcom/Kconfig"
 source "drivers/soc/ti/Kconfig"
 source "drivers/soc/versatile/Kconfig"
+source "drivers/soc/samsung/Kconfig"
 
 endmenu
diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index 063113d..44d220d 100644
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -6,3 +6,4 @@  obj-$(CONFIG_ARCH_QCOM)		+= qcom/
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
 obj-$(CONFIG_SOC_TI)		+= ti/
 obj-$(CONFIG_PLAT_VERSATILE)	+= versatile/
+obj-$(CONFIG_ARCH_EXYNOS)	+= samsung/
diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig
new file mode 100644
index 0000000..beb6dfc
--- /dev/null
+++ b/drivers/soc/samsung/Kconfig
@@ -0,0 +1,19 @@ 
+#
+# SAMSUNG SOC drivers
+#
+menuconfig SOC_SAMSUNG
+	bool "Samsung SOC drivers support"
+
+if SOC_SAMSUNG
+
+config MFD_EXYNOS_PMU
+	tristate "Support Exynos Power Management Unit"
+	depends on ARM || ARM64
+	default y
+	help
+	  Exynos SoC have Power Management Unit (PMU) which controls power and
+	  operation state of Exynos SoC in two different ways. This driver
+	  provides implementation of PMU driver and provides basic functionality
+	  required during these operation state.
+
+endif #SOC_SAMSUNG
diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile
new file mode 100644
index 0000000..9d30f61
--- /dev/null
+++ b/drivers/soc/samsung/Makefile
@@ -0,0 +1 @@ 
+obj-$(CONFIG_MFD_EXYNOS_PMU)	+= exynos-pmu.o