Re: [PATCH v4.1 1/2] drm/rockchip: analogix_dp: introduce the pclk for grf

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Yakir,

On Wed, Jun 22, 2016 at 6:58 PM, Yakir Yang <ykk@xxxxxxxxxxxxxx> wrote:
> For RK3399's GRF module, if we want to operate the graphic related grf
> registers, we need to enable the pclk_vio_grf which supply power for VIO
> GRF IOs, so it's better to introduce an optional grf clock in driver.
>
> Signed-off-by: Yakir Yang <ykk@xxxxxxxxxxxxxx>
> ---
> Hi all,
>
> This is an external patch for analogix_dp misc cleanup thread [0]
> [0]: https://patchwork.kernel.org/patch/9175613/
>
> BR,
> - Yakir
>
> Changes in v4.1:
> - Fix compiled error, sorry.
>   "dp->cgfclk"  -->  'dp->grfclk'
>
> Changes in v4:
> - Check the the error code properly, 'EPROBE_DEFER' should be returned,
>   'ENOENT' should assign a NULL point to grfclk, other errors should be
>   regarded as failed. (Tomasz, Doug, reviewed at Google Gerrit)
>     [https://chromium-review.googlesource.com/#/c/351821/20/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c@249]
> - Add the document about optional 'grf' clock (Tomasz, Doug, reviewed at Google Gerrit)
>     [https://chromium-review.googlesource.com/#/c/351821/]
>
> Changes in v3:
> - Add this patch in v3
>
>  .../display/rockchip/analogix_dp-rockchip.txt      |  6 ++++++
>  drivers/gpu/drm/rockchip/analogix_dp-rockchip.c    | 23 +++++++++++++++++++---
>  2 files changed, 26 insertions(+), 3 deletions(-)

I probably would have split into two patches so the bindings was its
own patch, but I don't think it's strictly required.

In any case, this seems good to me.

Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
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