Re: [PATCH 1/3] drm/dp: Add DP_DSC_MAX_BPP_DELTA register

["Nautiyal, Ankit K" <ankit.k.nautiyal@intel.com>]

On 4/23/2026 8:00 PM, Nemesa Garg wrote:
> The dsc max bpp delta masks were incorrectly placed
> under the DP_DSC_BITS_PER_PIXEL_INC(0x06F) register.
> Move these under correct DP_DSC_MAX_BPP_DELTA(0x06E)
> register.
>
> v2: Separate patch for correcting register. [Ankit]
>
> Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
> ---
>   include/drm/display/drm_dp.h | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
> index 8b15d3eeb716..520490ac6778 100644
> --- a/include/drm/display/drm_dp.h
> +++ b/include/drm/display/drm_dp.h
> @@ -354,9 +354,11 @@
>   # define DP_DSC_20_PER_DP_DSC_SINK          (1 << 1)
>   # define DP_DSC_24_PER_DP_DSC_SINK          (1 << 2)
>   
> -#define DP_DSC_BITS_PER_PIXEL_INC           0x06F
> +#define DP_DSC_MAX_BPP_DELTA		    0x06E
>   # define DP_DSC_RGB_YCbCr444_MAX_BPP_DELTA_MASK 0x1f
>   # define DP_DSC_RGB_YCbCr420_MAX_BPP_DELTA_MASK 0xe0

This should be called DP_DSC_Native_YCbCr420_MAX_BPP_DELTA_MASK

But that should be yet another patch.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>



> +
> +#define DP_DSC_BITS_PER_PIXEL_INC           0x06F
>   # define DP_DSC_BITS_PER_PIXEL_1_16         0x0
>   # define DP_DSC_BITS_PER_PIXEL_1_8          0x1
>   # define DP_DSC_BITS_PER_PIXEL_1_4          0x2