On Fri, Mar 06, 2026 at 05:25:00PM +0800, Pengyu Luo wrote:
> In upstream the msm, for bpc greater than 8 are not supported yet,
> although the hardware block supports this. Remove them until we
> support them.
>
> Fixes: b0e71c2637d1 ("drm/msm/dsi: Allow values of 10 and 12 for bits per
> component")
> Signed-off-by: Pengyu Luo <[email protected]>
I hope Marijn, Danila or Eugeny can comment. The patch series with this
patchset added 10 bpc panel and used it for one of the phones.
> ---
> drivers/gpu/drm/msm/dsi/dsi_host.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c
> b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index e8e83ee61e..b60b26ddb0 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -1824,12 +1824,9 @@ static int dsi_populate_dsc_params(struct msm_dsi_host
> *msm_host, struct drm_dsc
>
> switch (dsc->bits_per_component) {
> case 8:
> - case 10:
> - case 12:
> /*
> - * Only 8, 10, and 12 bpc are supported for DSC 1.1 block.
> - * If additional bpc values need to be supported, update
> - * this quard with the appropriate DSC version verification.
> + * In the upstream msm, only 8 bpc is supported for DSC 1.1/1.2
> + * block.
> */
> break;
> default:
> --
> 2.53.0
>
--
With best wishes
Dmitry
