diff options
| author | Sandor Yu <Sandor.yu@nxp.com> | 2019-09-20 15:27:34 +0800 |
|---|---|---|
| committer | Sandor Yu <Sandor.yu@nxp.com> | 2019-09-23 10:48:35 +0800 |
| commit | faa26e47f1bf4dd03787c3677aa8aa70acaad128 (patch) | |
| tree | 5dcc87d425d6e7f9b9d9ec8b4f14c21931ad9647 /drivers/video | |
| parent | b433aae16175a81a1efe256c10d2361bdb20f6af (diff) | |
MLK-22084: fbdev: hdmi: Fix HDCP function failed work with Sony TV
HDCP function could work in other TVs
but it failed with Sony TV when run hdcp enable/disable stress test.
The TMDS clock is not detected by Sony TV.
The TV seems time sensitive for HDMI TMDS.
Add 20ms delay before TMDS enable make it work.
Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
(cherry picked from commit cb8a41d3cce444ba9e7044637ab4499caf65799e)
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/mxc/mxc_hdmi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/fbdev/mxc/mxc_hdmi.c b/drivers/video/fbdev/mxc/mxc_hdmi.c index 6bb39f9795d1..0634669dfbd8 100644 --- a/drivers/video/fbdev/mxc/mxc_hdmi.c +++ b/drivers/video/fbdev/mxc/mxc_hdmi.c @@ -2265,10 +2265,11 @@ static void mxc_hdmi_setup(struct mxc_hdmi *hdmi, unsigned long event) hdmi_video_csc(hdmi); hdmi_video_sample(hdmi); + /* delay 20ms before tmds start work */ + msleep(20); mxc_hdmi_clear_overflow(hdmi); dev_dbg(&hdmi->pdev->dev, "%s exit\n\n", __func__); - } /* Wait until we are registered to enable interrupts */ |