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OMAPDSS: HDMI: Add delay to wait for 5V power

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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>
This commit is contained in:
Tomi Valkeinen 2012-04-26 14:58:41 +03:00
parent cca35017ca
commit a84b20654b
1 changed files with 3 additions and 0 deletions
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3
drivers/video/omap2/dss/hdmi.c
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@ -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;