[PATCH 00/40] arm64: dts: rockchip: Wire up frl-enable-gpios for RK3576/RK3588 boards

[Cristian Ciocaltea]

Several boards based on the RK3576 and RK3588(S) SoCs use a
GPIO-controlled voltage bias circuit on the HDMI data lines that must be
switched according to the active link mode: asserted for HDMI 2.1 FRL
and deasserted for HDMI 1.4/2.0 TMDS.

This series adds the frl-enable-gpios property to the HDMI nodes of all
boards for which the GPIO configuration could be identified from vendor
BSP kernel sources and/or schematics where available.  In a small number
of cases it was necessary to extract and disassemble the DTB from the
vendor firmware image.

One board remains unhandled (rk3588-edgeble-neu6a-io), pending
clarification from the vendor.

For each affected board the patches:
- set frl-enable-gpios with the appropriate GPIO reference and
  GPIO_ACTIVE_LOW polarity (inverted relative to the BSP enable-gpios /
  GPIO_ACTIVE_HIGH convention, which effectively acts as
  tmds-enable-gpios)
- extend pinctrl-0 of the HDMI node to include the new pin group
- add the corresponding pinctrl definition under &pinctrl

It's worth noting the Rockchip platform glue driver for the DesignWare
HDMI QP TX controller already drives the frl-enable GPIO, but since FRL
is not yet supported, TMDS mode is unconditionally selected.  This
ensures a consistent setup independent of hardware reset defaults and
bootloader state.

Furthermore, this allows removing a few DT quirks hardcoding the active
link mode and paves the way for a follow-up series enabling HDMI 2.1 FRL
support.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
---
Cristian Ciocaltea (40):
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-100ask-dshanpi-a1
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-armsom-sige5
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-evb1-v10
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-evb2-v10
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-luckfox-core3576
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-nanopi-m5
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-nanopi-r76s
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-roc-pc
      arm64: dts: rockchip: Add frl-enable-gpios to rk3576-rock-4d
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-armsom-sige7
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-armsom-w3
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-coolpi-cm5-evb
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-coolpi-cm5-genbook
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-evb1-v10
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-evb2-v10
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-firefly-itx-3588j
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-friendlyelec-cm3588-nas
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-h96-max-v58
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-jaguar
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-mnt-reform2
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-nanopc-t6
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-orangepi-5-max
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-orangepi-5-plus
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-orangepi-5-ultra
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-roc-rt
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-rock-5-itx
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-rock-5b-5bp-5t
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588-tiger
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-coolpi-4b
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-gameforce-ace
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-indiedroid-nova
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-khadas-edge2
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-nanopi-r6
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-odroid-m2
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-orangepi-5
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-orangepi-cm5-base
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-radxa-cm5-io
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-roc-pc
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-rock-5a
      arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-rock-5c

 .../boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts      |  8 ++++++++
 arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts    |  8 ++++++++
 arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts        |  8 ++++++++
 arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts        |  8 ++++++++
 .../boot/dts/rockchip/rk3576-luckfox-core3576.dtsi      |  9 ++++-----
 arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts       |  8 ++++++++
 arch/arm64/boot/dts/rockchip/rk3576-nanopi-r76s.dts     |  9 ++++-----
 arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts          |  8 ++++++++
 arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts         |  8 ++++++++
 arch/arm64/boot/dts/rockchip/rk3588-armsom-sige7.dts    |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588-armsom-w3.dts       | 16 ++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-coolpi-cm5-evb.dts  | 17 ++++++++++++++++-
 .../boot/dts/rockchip/rk3588-coolpi-cm5-genbook.dts     | 10 +++++++++-
 arch/arm64/boot/dts/rockchip/rk3588-evb1-v10.dts        | 16 ++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-evb2-v10.dts        |  9 +++++++++
 .../boot/dts/rockchip/rk3588-firefly-itx-3588j.dts      |  9 +++++++++
 .../dts/rockchip/rk3588-friendlyelec-cm3588-nas.dts     | 16 ++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-h96-max-v58.dts     |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts          | 10 +++++++++-
 arch/arm64/boot/dts/rockchip/rk3588-mnt-reform2.dts     |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi      | 16 ++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-max.dts  | 15 ++++++++++++++-
 arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts | 16 ++++++++++++++++
 .../arm64/boot/dts/rockchip/rk3588-orangepi-5-ultra.dts |  9 ++++++++-
 arch/arm64/boot/dts/rockchip/rk3588-roc-rt.dts          | 16 ++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts      |  9 ++++++++-
 arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi | 16 +++++++++++++++-
 arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou.dts    |  3 ++-
 arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi          |  9 ++++++++-
 arch/arm64/boot/dts/rockchip/rk3588s-coolpi-4b.dts      |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588s-gameforce-ace.dts  |  8 +++-----
 .../arm64/boot/dts/rockchip/rk3588s-indiedroid-nova.dts | 10 +++++++++-
 arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts   | 13 +++++++++----
 arch/arm64/boot/dts/rockchip/rk3588s-nanopi-r6.dtsi     |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588s-odroid-m2.dts      |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588s-orangepi-5.dtsi    |  9 +++++++++
 .../boot/dts/rockchip/rk3588s-orangepi-cm5-base.dts     |  3 ++-
 arch/arm64/boot/dts/rockchip/rk3588s-radxa-cm5-io.dts   |  9 +++++++++
 arch/arm64/boot/dts/rockchip/rk3588s-roc-pc.dts         | 15 ++++++++++++---
 arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts        | 10 +++++++++-
 arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts        | 10 +++++++++-
 41 files changed, 392 insertions(+), 35 deletions(-)
---
base-commit: 452c3b1ea875276105ac90ba474f72b4cd9b77a2
change-id: 20260417-dts-rk-frl-enable-gpios-ce9930dbf5ca