Commit 4c0b97b5 authored Feb 10, 2014 by Ramakant Singh Committed by Radhika Ranjan Soni Feb 21, 2014

msm: mdss: Don't call pan_idle for MSMFB_OVERLAY_PREPARE ioctl



We keep calling MSMFB_OVERLAY_PREPARE for each composition
cycle, even if there are no changes in params. Because of this
we can hit performance degradation due to pan idle wait.
This change removes pan_idle wait for prepare call.

CRs-Fixed: 600539
CRs-Fixed: 608848
Change-Id: Ie99f4dbc4671caf9bfbd49bd9b200c3180002d56
Signed-off-by: Radhika Ranjan Soni <rrsoni@codeaurora.org>

parent 00ca6a61

drivers/video/msm/mdss/mdss_fb.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -2255,7 +2255,8 @@ static int mdss_fb_ioctl(struct fb_info *info, unsigned int cmd,
		mdss_fb_power_setting_idle(mfd);
		if ((cmd != MSMFB_VSYNC_CTRL) && (cmd != MSMFB_OVERLAY_VSYNC_CTRL) &&
		(cmd != MSMFB_ASYNC_BLIT) && (cmd != MSMFB_BLIT) &&
		(cmd != MSMFB_NOTIFY_UPDATE)) {
		(cmd != MSMFB_NOTIFY_UPDATE) &&
		(cmd != MSMFB_OVERLAY_PREPARE)) {
		ret = mdss_fb_pan_idle(mfd);
		if (ret) {
		pr_debug("Shutdown pending. Aborting operation %x\n",