On Thu, May 25, 2023 at 01:10:36PM +0300, Stanislav Lisovskiy wrote: > According to BSpec 49190, when enabling crtcs, we first setup > slave and then master crtc, however for disabling it should go > vice versa, i.e first master, then slave, however current code > does disabling in a same way as enabling. Fix this, by skipping > non-master crtcs, instead of non-slaves. > > Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx> > --- > 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 0490c6412ab5..68958ba0ef49 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -6662,7 +6662,7 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state) > */ > if (!is_trans_port_sync_slave(old_crtc_state) && > !intel_dp_mst_is_slave_trans(old_crtc_state) && > - !intel_crtc_is_bigjoiner_slave(old_crtc_state)) > + !intel_crtc_is_bigjoiner_master(old_crtc_state)) I don't see what does this fix. The sequence is correct at the moment and this change would break it, leaving the encoder PLL enabled incorrectly when the encoder->post_pll_disable() hook is called. Hence it's NAK from side. > continue; > > intel_old_crtc_state_disables(state, old_crtc_state, > -- > 2.37.3 >
