[PATCH 4.15] drm/amd/display: call set csc_default if enable adjustment is false

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On Fri, Dec 29, 2017 at 6:11 AM, Daniel Drake <drake at endlessm.com> wrote:
> From: Yue Hin Lau <Yuehin.Lau at amd.com>
>
> Signed-off-by: Yue Hin Lau <Yuehin.Lau at amd.com>
> Reviewed-by: Eric Bernstein <Eric.Bernstein at amd.com>
> Acked-by: Harry Wentland <harry.wentland at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> [drake at endlessm.com: backport to 4.15]
> Signed-off-by: Daniel Drake <drake at endlessm.com>
> ---
>  drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.h          | 2 +-
>  drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c       | 6 ++----
>  drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 2 ++
>  drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h               | 2 +-
>  4 files changed, 6 insertions(+), 6 deletions(-)
>
> Testing Acer Aspire TC-380 engineering sample (Raven Ridge), the display
> comes up with an excessively green tint. This patch (from amd-staging-drm-next)
> solves the issue. Can it be included in Linux 4.15?

Looks ok to me.  Unless Harry or Leo have any objections, I'll add it
to my queue.

Thanks!

Alex


>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.h
> index a9782b1aba47..34daf895f848 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.h
> +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.h
> @@ -1360,7 +1360,7 @@ void dpp1_cm_set_output_csc_adjustment(
>
>  void dpp1_cm_set_output_csc_default(
>                 struct dpp *dpp_base,
> -               const struct default_adjustment *default_adjust);
> +               enum dc_color_space colorspace);
>
>  void dpp1_cm_set_gamut_remap(
>         struct dpp *dpp,
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
> index 40627c244bf5..ed1216b53465 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c
> @@ -225,14 +225,13 @@ void dpp1_cm_set_gamut_remap(
>
>  void dpp1_cm_set_output_csc_default(
>                 struct dpp *dpp_base,
> -               const struct default_adjustment *default_adjust)
> +               enum dc_color_space colorspace)
>  {
>
>         struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
>         uint32_t ocsc_mode = 0;
>
> -       if (default_adjust != NULL) {
> -               switch (default_adjust->out_color_space) {
> +       switch (colorspace) {
>                 case COLOR_SPACE_SRGB:
>                 case COLOR_SPACE_2020_RGB_FULLRANGE:
>                         ocsc_mode = 0;
> @@ -253,7 +252,6 @@ void dpp1_cm_set_output_csc_default(
>                 case COLOR_SPACE_UNKNOWN:
>                 default:
>                         break;
> -               }
>         }
>
>         REG_SET(CM_OCSC_CONTROL, 0, CM_OCSC_MODE, ocsc_mode);
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> index 961ad5c3b454..05dc01e54531 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> @@ -2097,6 +2097,8 @@ static void program_csc_matrix(struct pipe_ctx *pipe_ctx,
>                         tbl_entry.color_space = color_space;
>                         //tbl_entry.regval = matrix;
>                         pipe_ctx->plane_res.dpp->funcs->opp_set_csc_adjustment(pipe_ctx->plane_res.dpp, &tbl_entry);
> +       } else {
> +               pipe_ctx->plane_res.dpp->funcs->opp_set_csc_default(pipe_ctx->plane_res.dpp, colorspace);
>         }
>  }
>  static bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx)
> diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
> index 83a68460edcd..9420dfb94d39 100644
> --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
> +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
> @@ -64,7 +64,7 @@ struct dpp_funcs {
>
>         void (*opp_set_csc_default)(
>                 struct dpp *dpp,
> -               const struct default_adjustment *default_adjust);
> +               enum dc_color_space colorspace);
>
>         void (*opp_set_csc_adjustment)(
>                 struct dpp *dpp,
> --
> 2.14.1
>
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