lkml.org 
[lkml]   [2014]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v2 2/6] drivers: soc: Add support for Exynos PMU driver
From
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
> More majordomo info at http://vger.kernel.org/majordomo-info.html


\
 
 \ /
  Last update: 2014-11-10 06:41    [W:0.059 / U:6.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site