drm/i915/dp_mst: Account with the DSC DPT bpp limit on MTL

ideak · ideak · commit e54cc6deecce · 2024-04-19T17:20:53.000+03:00
The DPT/DSC bpp limit should be accounted for on MTL platforms as well, do so. Bspec: 49259 Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240416221010.376865-6-imre.deak@intel.com
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -56,7 +56,7 @@ static int intel_dp_mst_check_constraints(struct drm_i915_private *i915, int bpp
 					  struct intel_crtc_state *crtc_state,
 					  bool dsc)
 {
-	if (intel_dp_is_uhbr(crtc_state) && DISPLAY_VER(i915) < 14 && dsc) {
+	if (intel_dp_is_uhbr(crtc_state) && DISPLAY_VER(i915) < 20 && dsc) {
 		int output_bpp = bpp;
 		int symbol_clock = intel_dp_link_symbol_clock(crtc_state->port_clock);
 		/*

Original file line number	Diff line number	Diff line change
`@@ -56,7 +56,7 @@ static int intel_dp_mst_check_constraints(struct drm_i915_private *i915, int bpp`
`56`	`56`	`struct intel_crtc_state *crtc_state,`
`57`	`57`	`bool dsc)`
`58`	`58`	`{`
`59`		`- if (intel_dp_is_uhbr(crtc_state) && DISPLAY_VER(i915) < 14 && dsc) {`
	`59`	`+ if (intel_dp_is_uhbr(crtc_state) && DISPLAY_VER(i915) < 20 && dsc) {`
`60`	`60`	`int output_bpp = bpp;`
`61`	`61`	`int symbol_clock = intel_dp_link_symbol_clock(crtc_state->port_clock);`
`62`	`62`	`/*`