Re: [PATCH v3 0/7] samsung: pmu: split up SoC specific PMU data

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On 26.10.2015 21:55, Pankaj Dubey wrote:
> This patch series is a part of continuation work from following series
> [1] and [2].
> 
> 1: exynos: Move pmu driver to driver/soc folder and add exynos7 support
>    http://www.spinics.net/lists/linux-samsung-soc/msg39797.html from Amit Daniel Kacchap
> 2: soc: samsung: pmu: split up SoC specific PMU data
>    https://lkml.org/lkml/2015/1/7/12 from me
> 

+Cc Bartlomiej,

There were some concerns for previous versions of this patchset. I
cannot find all of them (e.g. Bartlomiej's are not present on lkml.org
anymore) so I am not sure if they were addressed properly.

I like the approach, it helps in reviewing the patch.

I wonder - after adding this for ARM64 how much of duplicated code this
approach reduce?

Best regards,
Krzysztof

> Here is another attempt for the same, in this series I am splitting up SoC
> specific PMU configuration data into mach-exynos folder itself, before moving
> all of them under drivers/soc/samsung/. Also instead of making all changes in
> single patch it has been broken into SoC specific patches to avoid large size
> of patch. With this approach there will not be unwanted big churns just after
> adding exynos-pmu under drivers/soc/samsung.
> 
> All these patches are just refactoring to keep minimal changes while moving
> exynos-pmu driver under drivers/soc/samsung/. Support for exynos7 PMU can be added
> on top of it, in such a manner that for ARM64 build, ARM related SoC's PMU will not
> get compiled and thus unnecessary increasing kernel image size.
> 
> I have tested on Peach-Pi (Exynos5880) based chromebook for boot
> and S2R functionality.
> 
> These patches have been prepared on top of Kukjin Kim's for-next
> 
> Changes since v2:
>  - Removed Amit's Samsung id as it's no more valid.
>  - Rebased on latest kgene tree.
>  - Removed redundant code from regs-pmu.h
> 
> 
> Pankaj Dubey (7):
>   ARM: EXYNOS: removing redundant code from regs-pmu.h
>   ARM: EXYNOS: Move pmu specific headers under "linux/soc/samsung"
>   ARCH: EXYNOS: split up exynos3250 SoC specific PMU data
>   ARCH: EXYNOS: split up exynos4 SoC specific PMU data
>   ARCH: EXYNOS: split up exynos5250 SoC specific PMU data
>   ARCH: EXYNOS: split up exynos5420 SoC specific PMU data
>   drivers: soc: Add support for Exynos PMU driver
> 
>  arch/arm/mach-exynos/Kconfig                       |    1 +
>  arch/arm/mach-exynos/Makefile                      |    2 +-
>  arch/arm/mach-exynos/exynos.c                      |    2 +-
>  arch/arm/mach-exynos/mcpm-exynos.c                 |    2 +-
>  arch/arm/mach-exynos/platsmp.c                     |    2 +-
>  arch/arm/mach-exynos/pm.c                          |    4 +-
>  arch/arm/mach-exynos/pmu.c                         | 1004 --------------------
>  arch/arm/mach-exynos/suspend.c                     |    4 +-
>  drivers/soc/samsung/Kconfig                        |    4 +
>  drivers/soc/samsung/Makefile                       |    4 +
>  drivers/soc/samsung/exynos-pmu.c                   |  168 ++++
>  drivers/soc/samsung/exynos-pmu.h                   |   52 +
>  drivers/soc/samsung/exynos3250-pmu.c               |  175 ++++
>  drivers/soc/samsung/exynos4-pmu.c                  |  223 +++++
>  drivers/soc/samsung/exynos5250-pmu.c               |  196 ++++
>  drivers/soc/samsung/exynos5420-pmu.c               |  280 ++++++
>  .../linux/soc/samsung}/exynos-pmu.h                |    2 +-
>  .../linux/soc/samsung/exynos-regs-pmu.h            |   17 +-
>  18 files changed, 1116 insertions(+), 1026 deletions(-)
>  delete mode 100644 arch/arm/mach-exynos/pmu.c
>  create mode 100644 drivers/soc/samsung/exynos-pmu.c
>  create mode 100644 drivers/soc/samsung/exynos-pmu.h
>  create mode 100644 drivers/soc/samsung/exynos3250-pmu.c
>  create mode 100644 drivers/soc/samsung/exynos4-pmu.c
>  create mode 100644 drivers/soc/samsung/exynos5250-pmu.c
>  create mode 100644 drivers/soc/samsung/exynos5420-pmu.c
>  rename {arch/arm/mach-exynos => include/linux/soc/samsung}/exynos-pmu.h (90%)
>  rename arch/arm/mach-exynos/regs-pmu.h => include/linux/soc/samsung/exynos-regs-pmu.h (98%)
> 

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