drm/exynos: hdmi: make 'hdmi-en' regulator optional and keep it enabled

Browse source

HDMI_EN regulator is additional regulator for providing voltage source
for DCC lines available on HDMI connector. When there is no power
provided for DDC epprom, some TV-sets do not pulls up HPD (hot plug
detect) line, what causes HDMI block to stay turned off. This patch
enables HDMI_EN regulator (if available) on driver probe and keep it
enabled all the time to let TV-set correctly signal HPD event.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

...

This commit is contained in:

Marek Szyprowski 2014-07-01 10:10:06 +02:00 • committed by Inki Dae

parent 8f589bba25

commit 05fdf98742

1 changed files with 18 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

19

drivers/gpu/drm/exynos/exynos_hdmi.c

View file