Currently when we do the HW state readout, we dont set the shared dpll to NULL for the bigjoiner slave which should not have a DPLL assigned. So it has some garbage while the HW state readout is NULL. So explicitly reset the shared dpll for bigjoiner slave pipe.
Bug: https://gitlab.freedesktop.org/drm/intel/-/issues/3465 Cc: Ville Syrjälä <ville.syrj...@linux.intel.com> Cc: Ankit Nautiyal <ankit.k.nauti...@intel.com> Tested-By: Swati Sharma <swati2.sha...@intel.com> Signed-off-by: Manasi Navare <manasi.d.nav...@intel.com> --- drivers/gpu/drm/i915/display/intel_display.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 65ddb6ca16e6..c274bfb8e549 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -9006,6 +9006,10 @@ verify_crtc_state(struct intel_crtc *crtc, if (!new_crtc_state->hw.active) return; + if (new_crtc_state->bigjoiner_slave) + /* No PLLs set for slave */ + pipe_config->shared_dpll = NULL; + intel_pipe_config_sanity_check(dev_priv, pipe_config); if (!intel_pipe_config_compare(new_crtc_state, -- 2.19.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
