On Wed, 27 Sep 2023, Vinod Govindapillai <vinod.govindapillai@xxxxxxxxx> wrote:
> Update the global dsc flag based on the display capabilities
> reported.
>
> Bspec: 71161
> Signed-off-by: Vinod Govindapillai <vinod.govindapillai@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_display_device.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c
> index a6a18eae7ae8..e51506e37384 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_device.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_device.c
> @@ -1065,6 +1065,13 @@ void intel_display_device_info_runtime_init(struct drm_i915_private *i915)
> display_runtime->has_dsc = 0;
> }
>
> + if (DISPLAY_VER(i915) >= 20) {
> + u32 cap = intel_de_read(i915, XE2LPD_DE_CAP);
> +
> + if (REG_FIELD_GET(XE2LPD_DE_CAP_DSC_MASK, cap) == 1)
Shouldn't the field values be defined too? Why the magic 1?
BR,
Jani.
> + display_runtime->has_dsc = 0;
> + }
> +
> return;
>
> display_fused_off:
--
Jani Nikula, Intel
