evie/android_kernel_oneplus_msm8998
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msm: mdss: Fix under run on HDMI on adb shell stop

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Wait for at least one vsync on HDMI interface for
proper TG OFF. Calculate wait time based on hdmi
refresh rate.

Change-Id: Ia935886ba4cce9cf8d6ce994143b07060f648620
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
This commit is contained in:
Pawan Kumar 2013-09-19 19:44:01 +05:30 • committed by David Keitel
parent 85fa4712e8
commit 94b2cc41bd
1 changed files with 9 additions and 0 deletions
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9
drivers/video/fbdev/msm/mdss_mdp_intf_video.c
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@ -294,6 +294,7 @@ static int mdss_mdp_video_stop(struct mdss_mdp_ctl *ctl)
struct mdss_mdp_video_ctx *ctx;
struct mdss_mdp_vsync_handler *tmp, *handle;
int rc;
u32 frame_rate = 0;
pr_debug("stop ctl=%d\n", ctl->num);
@ -313,6 +314,14 @@ static int mdss_mdp_video_stop(struct mdss_mdp_ctl *ctl)
WARN(rc, "intf %d blank error (%d)\n", ctl->intf_num, rc);
mdp_video_write(ctx, MDSS_MDP_REG_INTF_TIMING_ENGINE_EN, 0);
/* wait for at least one VSYNC on HDMI intf for proper TG OFF */
if (MDSS_INTF_HDMI == ctx->intf_type) {
frame_rate = mdss_panel_get_framerate
(&(ctl->panel_data->panel_info));
if (!(frame_rate >= 24 && frame_rate <= 240))
frame_rate = 24;
msleep((1000/frame_rate) + 1);
}
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
ctx->timegen_en = false;