[Intel-gfx] [PATCH 1/5] drm/i915: Skip dsc readout if the transcoder is disabled

Ville Syrjala ville.syrjala at linux.intel.com
Mon Jan 24 19:26:34 UTC 2022


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

Tryingf to do readout when we don't even have a cpu transcoder
is not a great idea. Don't do it.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 80bc52425e47..e32a7a1e7ba0 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4380,13 +4380,13 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 		active = true;
 	}
 
+	if (!active)
+		goto out;
+
 	intel_dsc_get_config(pipe_config);
 	if (DISPLAY_VER(dev_priv) >= 13 && !pipe_config->dsc.compression_enable)
 		intel_uncompressed_joiner_get_config(pipe_config);
 
-	if (!active)
-		goto out;
-
 	if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
 	    DISPLAY_VER(dev_priv) >= 11)
 		intel_get_transcoder_timings(crtc, pipe_config);
-- 
2.34.1



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