[PATCH 1/9] drm/i915/dmc: Limit pipe DMC clock gating w/a to just ADL/DG2/MTL

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Supposedly nothing post-MTL (even BMG) needs the pipe DMC clock
gating w/a (Wa_16015201720), so don't apply it.

TODO: check if the ADL/DG2 "clock gating needed during DMC loading" part
      is actuall needed, not seeing anything in the docs about it...

Reviewed-by: Uma Shankar <uma.shankar at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_dmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index a10e56e7cf31..b6ac480f391c 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -487,7 +487,7 @@ static void mtl_pipedmc_clock_gating_wa(struct intel_display *display)
 
 static void pipedmc_clock_gating_wa(struct intel_display *display, bool enable)
 {
-	if (DISPLAY_VER(display) >= 14 && enable)
+	if (display->platform.meteorlake && enable)
 		mtl_pipedmc_clock_gating_wa(display);
 	else if (DISPLAY_VER(display) == 13)
 		adlp_pipedmc_clock_gating_wa(display, enable);
-- 
2.49.0