Commit 15b1a07f authored Nov 20, 2020 by Danny Lin Committed by Akshay Kakatkar Oct 18, 2021

disp: msm: sde: Only clear dim layers when necessary

We don't use dim layers, so clearing them every time is redundant. Only
do so when there are actually layers to clear to eliminate the
measurably significant overhead this adds to the frame commit path.

Signed-off-by: Danny Lin <danny@kdrag0n.dev>

parent 4d638086

techpack/display/msm/sde/sde_crtc.c

+5 −3

Original line number	Diff line number	Diff line
		@@ -1595,10 +1595,12 @@ static void _sde_crtc_blend_setup(struct drm_crtc *crtc,
		mixer[i].hw_ctl);

		/* clear dim_layer settings */
		if (sde_crtc_state->num_dim_layers > 0) {
		lm = mixer[i].hw_lm;
		if (lm->ops.clear_dim_layer)
		lm->ops.clear_dim_layer(lm);
		}
		}

		_sde_crtc_swap_mixers_for_right_partial_update(crtc);