arm64: dts: rockchip: Add frl-enable-gpios to rk3588s boards

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The following RK3588s boards expose a GPIO pin to control the voltage
bias on the HDMI0 data lines:

- rk3588s-coolpi-4b
- rk3588s-indiedroid-nova
- rk3588s-nanopi-r6
- rk3588s-odroid-m2
- rk3588s-orangepi-5
- rk3588s-radxa-cm5-io
- rk3588s-rock-5a
- rk3588s-rock-5c

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 hdmi0 node to its dedicated GPIO via frl-enable-gpios to
allow adjusting the bias when transitioning between TMDS and FRL modes.

While at it, also ensure that pinctrl-names is present and ordered
alphabetically within the hdmi nodes.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20260428-dts-rk-frl-enable-gpios-v2-5-924df9db884a@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

...

This commit is contained in:

Cristian Ciocaltea 2026-04-28 00:57:23 +03:00 • committed by Heiko Stuebner

parent 643d6733e5

commit 3305c44489

8 changed files with 79 additions and 5 deletions

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10

arch/arm64/boot/dts/rockchip/rk3588s-coolpi-4b.dts

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arch/arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts

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arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi

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arch/arm64/boot/dts/rockchip/rk3588s-odroid-m2.dts

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arch/arm64/boot/dts/rockchip/rk3588s-orangepi-5.dtsi

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arch/arm64/boot/dts/rockchip/rk3588s-radxa-cm5-io.dts

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arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts

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arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts

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