Commit 11955c87 authored by Animesh Manna's avatar Animesh Manna Committed by Matt Roper
Browse files

drm/i915/dg2: Update to bigjoiner path 



In verify_mpllb_state() encoder is retrieved from best_encoder
of connector_state. As there will be only one connector_state
for bigjoiner and checking encoder may not be needed for
bigjoiner-slave. This code path related to mpll is done on dg2
and need this fix to avoid null pointer dereference issue.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: default avatarAnimesh Manna <animesh.manna@intel.com>
Signed-off-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarManasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210723174239.1551352-30-matthew.d.roper@intel.com
parent 7711749a

drivers/gpu/drm/i915/display/intel_display.c

+3 −0
Original line number Diff line number Diff line
@@ -9198,6 +9198,9 @@ verify_mpllb_state(struct intel_atomic_state *state, 
	if (!new_crtc_state->hw.active)

		return;



	if (new_crtc_state->bigjoiner_slave)

		return;



	encoder = intel_get_crtc_new_encoder(state, new_crtc_state);

	intel_mpllb_readout_hw_state(encoder, &mpllb_hw_state);