arm64: dts: rockchip: fix inverted headphone detection on Pinebook Pro

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On the Pinebook Pro the headphone jack is dual use. It can be used either
as a normal headphone jack or as a debug serial connection. This
functionality is controlled via a small hardware switch on the mainboard.
Unfortunately flipping this switch biases the headphone detection switch
inside the headphone jack at 3.3 V if in `debug UART` position but
to GND when in `headphone out` position.
This results in an inversion of the headphone detection logic depending
on the switch position.
Since the headphone jack can only be used for audio when in
`headphone out` position this commit changes the headphone detect GPIO
logic to be correct for that case rather than for the debug UART.

Fixes: 5a65505a69 ("arm64: dts: rockchip: Add initial support for Pinebook Pro")
Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Link: https://lore.kernel.org/r/20200414163952.1093784-2-t.schramm@manjaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

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Tobias Schramm 2020-04-14 18:39:51 +02:00 • committed by Heiko Stuebner

parent 5944eb7a1e

commit 40df91a894

1 changed files with 2 additions and 2 deletions

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arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts

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