[Intel-gfx] [PATCH] drm/i915/display/vrr: Skip the VRR HW state readout on DSI transcoder

Manasi Navare manasi.d.navare at intel.com
Tue Jan 26 18:52:24 UTC 2021

DSI transcoder does not support VRR and hence skip the HW state
readout if its a DSI transcoder.

Fixes: c7f0f4372b30 ("drm/i915/display: Add HW state readout for VRR")
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni at intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>
 drivers/gpu/drm/i915/display/intel_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 65240fa074cc..aea8c5b3a7fd 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -8978,7 +8978,7 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 		intel_get_transcoder_timings(crtc, pipe_config);
-	if (HAS_VRR(dev_priv))
+	if (HAS_VRR(dev_priv) && !transcoder_is_dsi(pipe_config->cpu_transcoder))
 		intel_vrr_get_config(crtc, pipe_config);
 	intel_get_pipe_src_size(crtc, pipe_config);

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