Commit 7cdd3a43 authored Oct 23, 2013 by Adrian Salido-Moreno

msm: mdss: keep mdp clk on during overlay kick off

This will reduce the delay caused by turning on/off mdp clk multiple
times during kickoff. Currently during kickoff, mdp pipe registers and
flush registers are programmed each with mdp clk on/off. We only need
turn mdp clk on/off once to program those registers. Increase scope of
mdp clock vote to keep them on during the entire programming sequence.

Change-Id: I5270c5e7aeef2f16c6a64d56827a73a8cb380fc5
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>

parent 036e7a9c

drivers/video/msm/mdss/mdss_mdp_overlay.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -905,6 +905,7 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
		}

		mdss_mdp_ctl_notify(ctl, MDP_NOTIFY_FRAME_BEGIN);
		mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);

		if (data)
		mdss_mdp_set_roi(ctl, data);
		@@ -1002,6 +1003,7 @@ int mdss_mdp_overlay_kickoff(struct msm_fb_data_type *mfd,
		mdss_fb_update_notify_update(mfd);
		commit_fail:
		mdss_mdp_overlay_cleanup(mfd);
		mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
		mdss_mdp_ctl_notify(ctl, MDP_NOTIFY_FRAME_FLUSHED);

		mutex_unlock(&mdp5_data->ov_lock);