diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-04-26 11:58:41 (GMT) |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-07 17:02:03 (GMT) |
| commit | a84b20654bb5711b45cf28bf5342143ce8652e72 (patch) | |
| tree | e08d068efa2fde1d0e9af2cffee32e89cf50f5c6 /drivers/video/omap2 | |
| parent | cca35017ca0dadae632ced71a11a7e0b7083af6c (diff) | |
| download | linux-a84b20654bb5711b45cf28bf5342143ce8652e72.tar.xz | |
OMAPDSS: HDMI: Add delay to wait for 5V power
TPD12S015A spec says to wait 300us after setting CT_CP_HPD gpio for the
5V power output to reach 90% of the voltage. This patch adds the delay
to the driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/omap2')
| -rw-r--r-- | drivers/video/omap2/dss/hdmi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index 4fbe271..96a6e29 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -492,6 +492,9 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) gpio_set_value(hdmi.ct_cp_hpd_gpio, 1); gpio_set_value(hdmi.ls_oe_gpio, 1); + /* wait 300us after CT_CP_HPD for the 5V power output to reach 90% */ + udelay(300); + r = hdmi_runtime_get(); if (r) goto err_runtime_get; |