[PATCH] drm/amd/display: Add callback to set dig mode

[Alex Deucher]

Acked-by: Alex Deucher <alexander.deucher at amd.com>

On Thu, Jul 7, 2022 at 2:03 PM Aurabindo Pillai
<aurabindo.pillai at amd.com> wrote:
>
> [Why&How]
> Add a missing callback to set DIG FIFO output pixel mode. This is used
> when ODM combine is activated.
>
> Fixes: e40fcd4afb3f ("drm/amd/display: add DCN32/321 specific files for Display Core")
> Signed-off-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
> ---
>  .../amd/display/dc/dcn32/dcn32_dio_stream_encoder.c  | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c
> index da7d2243664f..26648ce772da 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c
> @@ -391,6 +391,16 @@ static void enc32_stream_encoder_reset_fifo(struct stream_encoder *enc)
>         }
>  }
>
> +static void enc32_set_dig_input_mode(struct stream_encoder *enc, unsigned int pix_per_container)
> +{
> +       struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc);
> +
> +       /* The naming of this field is confusing, what it means is the output mode of otg, which
> +        * is the input mode of the dig
> +        */
> +       REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_OUTPUT_PIXEL_MODE, pix_per_container == 2 ? 0x1 : 0x0);
> +}
> +
>  static const struct stream_encoder_funcs dcn32_str_enc_funcs = {
>         .dp_set_odm_combine =
>                 enc32_dp_set_odm_combine,
> @@ -436,6 +446,8 @@ static const struct stream_encoder_funcs dcn32_str_enc_funcs = {
>         .dp_set_dsc_pps_info_packet = enc3_dp_set_dsc_pps_info_packet,
>         .set_dynamic_metadata = enc2_set_dynamic_metadata,
>         .hdmi_reset_stream_attribute = enc1_reset_hdmi_stream_attribute,
> +
> +       .set_input_mode = enc32_set_dig_input_mode,
>  };
>
>  void dcn32_dio_stream_encoder_construct(
> --
> 2.37.0
>