Re: [PATCH 12/17] drm/sun4i: Add CCSC property to DE2 configuration

From: Maxime Ripard
Date: Tue Nov 28 2017 - 15:45:04 EST


On Mon, Nov 27, 2017 at 09:57:45PM +0100, Jernej Skrabec wrote:
> Base addresses of channel output CSC (CCSC) depends whether mixer in
> question is first or second and if it is second, if supports VEP or not.
> This new property will tell which set of base addresses to take.
>
> 0 - first mixer or second mixer with VEP support
> 1 - second mixer without VEP support
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
> ---
> drivers/gpu/drm/sun4i/sun8i_mixer.c | 1 +
> drivers/gpu/drm/sun4i/sun8i_mixer.h | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
> index 7c9c87a0535b..2276eff8798d 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
> @@ -622,6 +622,7 @@ static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
> .vi_num = 2,
> .ui_num = 1,
> .scaler_mask = 0x3,
> + .ccsc = 0,
> };
>
> static const struct of_device_id sun8i_mixer_of_table[] = {
> diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
> index 355a45e6cfb4..4fcf1653e345 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
> +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
> @@ -136,6 +136,7 @@ struct sun8i_mixer_cfg {
> int vi_num;
> int ui_num;
> int scaler_mask;
> + int ccsc;

Having some documentation for that one would be great too.

Thanks!
Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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