arm64: dts: imx8mm-venice-gw71xx: fix USB OTG VBUS

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The GW71xx has a USB Type-C connector with USB 2.0 signaling. GPIO1_12
is the power-enable to the TPS25821 Source controller and power switch
responsible for monitoring the CC pins and enabling VBUS. Therefore
GPIO1_12 must always be enabled and the vbus output enable from the
IMX8MM can be ignored.

To fix USB OTG VBUS enable a pull-up on GPIO1_12 to always power the
TPS25821 and change the regulator output to GPIO1_10 which is
unconnected.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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Tim Harvey 2021-07-27 09:10:59 -07:00 • committed by Shawn Guo

parent 500659f3b4

commit bd306fdb4e

1 changed files with 3 additions and 2 deletions

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arch/arm64/boot/dts/freescale/imx8mm-venice-gw71xx.dtsi

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