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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-04-26 14:58:41 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-07 20:02:03 +0300 |
| commit | a84b20654bb5711b45cf28bf5342143ce8652e72 (patch) | |
| tree | e08d068efa2fde1d0e9af2cffee32e89cf50f5c6 | |
| parent | cca35017ca0dadae632ced71a11a7e0b7083af6c (diff) | |
| download | linux-a84b20654bb5711b45cf28bf5342143ce8652e72.tar.gz linux-a84b20654bb5711b45cf28bf5342143ce8652e72.zip | |
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>
| -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 4fbe27191de5..96a6e298873b 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; |