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msm: mdss: fix under-runs for simulator panels

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While using simulator panels through debugfs, all the necessary
parameters are updated except panel_max_vtotal. This parameter is used
to derive bandwidth and mdp clock rate for video mode panels. So if this
parameter is not updated while switching simulator panel from low to high
resolution then we are under voting and under clocking MDP. This leads to
under-runs. Fix this by updating panel_max_vtotal with latest v_total.

Change-Id: Ia51340c597e8234d59660b43f19a841ffb96dad3
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
This commit is contained in:
Ujwal Patel 2014-12-01 21:04:58 -08:00 • committed by David Keitel
parent 306854ec6d
commit 60f017856f
1 changed files with 1 additions and 0 deletions
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drivers/video/fbdev/msm/mdss_panel.c
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@ -134,6 +134,7 @@ void mdss_panel_debugfsinfo_to_panelinfo(struct mdss_panel_info *panel_info)
pinfo->xres = pinfo->debugfs_info->xres;
pinfo->yres = pinfo->debugfs_info->yres;
pinfo->lcdc = pinfo->debugfs_info->lcdc;
pinfo->panel_max_vtotal = mdss_panel_get_vtotal(pinfo);
pinfo->mipi.frame_rate = pinfo->debugfs_info->frame_rate;
pdata = pdata->next;
} while (pdata);