Re: [PATCH v4 0/9] mmc: dw_mmc: add support for device tree based instantiation

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On 27 August 2012 15:01, Will Newton <will.newton@xxxxxxxxx> wrote:
> On Sun, Aug 26, 2012 at 12:51 PM, Thomas Abraham
> <thomas.abraham@xxxxxxxxxx> wrote:
>> This is the fourth version of the patch series that adds device tree support
>> for Synopsis Designware Mobile Storage Host Controller. In this version, the
>> significant change is the spliting of Exynos specific code into a seperate
>> file, as suggested by Seungwon Jeon <tgih.jun@xxxxxxxxxxx>. Spliting the
>> Exynos specific code into a seperate file did infact keeps the core driver
>> code clean, which otherwise was littered with Exynos specific code. I hope
>> the changes look sane, though. This has been tested only on smdk5250 board.
>>
>> Thomas Abraham (9):
>>   mmc: dw_mmc: convert copy of struct device in struct dw_mci to a reference
>>   mmc: dw_mmc: Use devm_* functions in dw_mmc platform driver
>>   mmc: dw_mmc: allow probe to succeed even if one slot is initialized
>>   mmc: dw_mmc: lookup for optional biu and ciu clocks
>>   mmc: dw_mmc: add quirk to indicate missing write protect line
>>   mmc: dw_mmc: add device tree support
>>   mmc: dw_mmc: prepare functions in dw_mmc-pltfm for reuse
>>   mmc: dw_mmc: add support for implementation specific callbacks
>>   mmc: dw_mmc: add support for exynos specific implementation of dw-mshc
>>
>>  .../devicetree/bindings/mmc/exynos-dw-mshc.txt     |   79 ++++++
>>  .../devicetree/bindings/mmc/synposis-dw-mshc.txt   |   90 ++++++
>>  drivers/mmc/host/Kconfig                           |    9 +
>>  drivers/mmc/host/Makefile                          |    3 +-
>>  drivers/mmc/host/dw_mmc-exynos.c                   |  247 +++++++++++++++++
>>  drivers/mmc/host/dw_mmc-pci.c                      |    2 +-
>>  drivers/mmc/host/dw_mmc-pltfm.c                    |   62 +++--
>>  drivers/mmc/host/dw_mmc-pltfm.h                    |   20 ++
>>  drivers/mmc/host/dw_mmc.c                          |  287 ++++++++++++++++----
>>  drivers/mmc/host/dw_mmc.h                          |   22 ++
>>  include/linux/mmc/dw_mmc.h                         |   13 +-
>>  11 files changed, 757 insertions(+), 77 deletions(-)
>>  create mode 100644 Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
>>  create mode 100644 Documentation/devicetree/bindings/mmc/synposis-dw-mshc.txt
>>  create mode 100644 drivers/mmc/host/dw_mmc-exynos.c
>>  create mode 100644 drivers/mmc/host/dw_mmc-pltfm.h
>
> This series looks good to me, although I am not familiar enough with
> the device tree stuff to review it in a meaningful way.
>
> Acked-by: Will Newton <will.newton@xxxxxxxxxx>
>
> Note that the platform driver changes will conflict with Jaehoon
> Chung's patch to fix a section mismatch in that file. Have you tried
> building this as a module and with section mismatch debugging to make
> sure the new code does not add any mismatches?

Thanks Will for reviewing this patch series.

I tried building dw-mmc, dw-mmc-pltfm and dw-mmc-exynos as modules
with section mismatch debugging enabled, and there were no warnings.
But, I did find a problem with the Kconfig entry I made for
dw-mmc-exynos file, instead of 'bool', I should have used 'tristate'.
I will fix this and other comments and repost.

Thanks,
Thomas.
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