stm32mp1: board: enable v1v2_hdmi and v3v3_hdmi regulator on dk2 boot
authorPatrick Delaunay <patrick.delaunay@st.com>
Tue, 30 Jul 2019 17:16:38 +0000 (19:16 +0200)
committerPatrice Chotard <patrice.chotard@st.com>
Tue, 27 Aug 2019 09:19:23 +0000 (11:19 +0200)
commitd573e461680d1642de2fb35e575dc9ef26fde56b
tree7a326c65f22e5e0950a78f79f86c91a3ade04cef
parent8b8b3d6b55b9503adb5340936870b16777aeed04
stm32mp1: board: enable v1v2_hdmi and v3v3_hdmi regulator on dk2 boot

As for Audio codec IC, HDMI IC is not "IO safe".
HDMI regulators (v3v3 and v1v2) must be enabled to allow
I2C1 bus usage. HDMI IC must be under reset during power up
and keep HDMI and AUDIO devices in reset while they are not
used in U-Boot to keep them in low power mode
(each device can be kept in reset independently keeping their
power supplies ON until kernel).

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
arch/arm/dts/stm32mp157c-dk2-u-boot.dtsi
board/st/stm32mp1/Kconfig
board/st/stm32mp1/stm32mp1.c