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.valkei...@ti.com>
---
drivers/video/omap2/dss/hdmi.c | 3 +++
1 file changed, 3 insertions(+)
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;
--
1.7.9.5
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