[Intel-gfx] [PATCH] drm/i915/dp: Fix DSC enable code to use cpu_transcoder instead of encoder->type

[Lucas De Marchi]

On Thu, Aug 22, 2019 at 7:20 AM Manasi Navare <manasi.d.navare at intel.com> wrote:
>
> This patch fixes the intel_configure_pps_for_dsc_encoder() function to use
> cpu_transcoder instead of encoder->type to select the correct DSC registers
> that was wrongly used in the original patch for one DSC register isntance.
>
> Fixes: 7182414e2530 ("drm/i915/dp: Configure i915 Picture parameter Set
> registers during DSC enabling")
> Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_vdsc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c
> index 598ddb60f9fb..d4fb7f16f9f6 100644
> --- a/drivers/gpu/drm/i915/display/intel_vdsc.c
> +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
> @@ -547,7 +547,7 @@ static void intel_configure_pps_for_dsc_encoder(struct intel_encoder *encoder,
>         pps_val |= DSC_PIC_HEIGHT(vdsc_cfg->pic_height) |
>                 DSC_PIC_WIDTH(vdsc_cfg->pic_width / num_vdsc_instances);
>         DRM_INFO("PPS2 = 0x%08x\n", pps_val);
> -       if (encoder->type == INTEL_OUTPUT_EDP) {
> +       if (cpu_transcoder == TRANSCODER_EDP) {

This will break tiger lake as there is no TRANSCODER_EDP there.

Lucas De Marchi

>                 I915_WRITE(DSCA_PICTURE_PARAMETER_SET_2, pps_val);
>                 /*
>                  * If 2 VDSC instances are needed, configure PPS for second
> --
> 2.19.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx



-- 
Lucas De Marchi