The patches provide the basic support to handle the second HDMI output port found on Rockchip RK3588 SoC. For now I enabled it on Radxa ROCK 5B only, the board I've been using to validate this. ** IMPORTANT ** The series has a runtime dependency on "phy: phy-rockchip-samsung-hdptx: Don't use dt aliases to determine phy-id", a patch submitted recently by Heiko [1]. Without applying it, the functionality on both HDMI TX ports will break. Furthermore, please note this is subject to the same limitations as HDMI0 when it comes to the supported display modes. The fixes provided via [2] are not applicable to HDMI1, hence I will handle it separately as soon as all dependencies are merged. Thanks, Cristian [1] https://lore.kernel.org/lkml/20241206103401.1780416-3-heiko@xxxxxxxxx/ [2] https://lore.kernel.org/all/20241116-vop2-hdmi0-disp-modes-v1-0-2bca51db4898@xxxxxxxxxxxxx/ Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx> --- Changes in v2: - Override hdmi1 pinctrl-0 on rock-5b as it requires hdmim0_tx1_cec instead of hdmim2_tx1_cec (fixes a pin conflict when enabling CONFIG_SPI_ROCKCHIP_SFC) - Link to v1: https://lore.kernel.org/r/20241207-rk3588-hdmi1-v1-0-ca3a99b46a40@xxxxxxxxxxxxx --- Cristian Ciocaltea (4): drm/rockchip: dw_hdmi_qp: Add support for RK3588 HDMI1 output arm64: dts: rockchip: Add PHY node for HDMI1 TX port on RK3588 arm64: dts: rockchip: Add HDMI1 node on RK3588 arm64: dts: rockchip: Enable HDMI1 on rock-5b arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi | 62 ++++++++++++ arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 44 ++++++++- drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 119 +++++++++++++++++++----- 3 files changed, 200 insertions(+), 25 deletions(-) --- base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37 change-id: 20241207-rk3588-hdmi1-704cbb7cd75f