drm/i915: Simplify intel_dsc_source_support()

We can simplify the icl check in intel_dsc_source_support()
by noting that the only case when DSC is not supported is when
using transcoder A.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220124192638.26262-2-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c
index 9b05f93ed8bc5032deda2adbf0d5107d9b23c257..3faea903b9ae5ae522102317673f5e6ab7445b36 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_vdsc.c
+++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
@@ -341,19 +341,14 @@ bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state)
        const struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
        struct drm_i915_private *i915 = to_i915(crtc->base.dev);
        enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
-       enum pipe pipe = crtc->pipe;
 
        if (!INTEL_INFO(i915)->display.has_dsc)
                return false;
 
-       /* On TGL, DSC is supported on all Pipes */
        if (DISPLAY_VER(i915) >= 12)
                return true;
 
-       if (DISPLAY_VER(i915) >= 11 &&
-           (pipe != PIPE_A || cpu_transcoder == TRANSCODER_EDP ||
-            cpu_transcoder == TRANSCODER_DSI_0 ||
-            cpu_transcoder == TRANSCODER_DSI_1))
+       if (DISPLAY_VER(i915) >= 11 && cpu_transcoder != TRANSCODER_A)
                return true;
 
        return false;