]> git.ipfire.org Git - thirdparty/linux.git/commit
arm64: dts: rockchip: Add frl-enable-gpios to rk3576 boards
authorCristian Ciocaltea <cristian.ciocaltea@collabora.com>
Mon, 27 Apr 2026 21:57:19 +0000 (00:57 +0300)
committerHeiko Stuebner <heiko@sntech.de>
Tue, 5 May 2026 18:28:39 +0000 (20:28 +0200)
commit2cd97880fbc434b49a211784561586f0397499b7
tree690ab4fbca7afbe56a0c7a58a242672b9553a18f
parent76cf96cd9e21aa6c3846d1449aef991a32d3e13b
arm64: dts: rockchip: Add frl-enable-gpios to rk3576 boards

The following RK3576 boards expose a GPIO pin to control the voltage
bias on the HDMI data lines:

- rk3576-100ask-dshanpi-a1
- rk3576-armsom-sige5
- rk3576-evb1-v10
- rk3576-evb2-v10
- rk3576-nanopi-m5
- rk3576-roc-pc
- rk3576-rock-4d

The pin must be asserted when operating in HDMI 2.1 FRL mode and
deasserted for HDMI 1.4/2.0 TMDS mode.

Wire up the hdmi node to its dedicated GPIO via frl-enable-gpios to
allow adjusting the bias when transitioning between TMDS and FRL modes.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20260428-dts-rk-frl-enable-gpios-v2-1-924df9db884a@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
arch/arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts
arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts
arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts
arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts
arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts