[PATCH v14 2/3] arm64: dts: rockchip: Enable HDMI receiver on rock-5b

Dmitry Osipenko
2025-03-06T07:29:57Z

From: Sebastian Reichel <sebastian.reichel@collabora.com>

The Rock 5B has a Micro HDMI port, which can be used for receiving
HDMI data. This enables support for it.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
.../arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index d597112f1d5b..377824e69e20 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -220,6 +220,18 @@ hdmi0_out_con: endpoint {
};
};

+&hdmi_receiver_cma {
+ status = "okay";
+};
+
+&hdmi_receiver {
+ status = "okay";
+ hpd-gpios = <&gpio1 RK_PC6 GPIO_ACTIVE_LOW>;
+ pinctrl-0 = <&hdmim1_rx_cec &hdmim1_rx_hpdin &hdmim1_rx_scl &hdmim1_rx_sda &hdmirx_hpd>;
+ pinctrl-names = "default";
+ memory-region = <&hdmi_receiver_cma>;
+};
+
&hdptxphy_hdmi0 {
status = "okay";
};
@@ -377,6 +389,12 @@ &pcie3x4 {
};

&pinctrl {
+ hdmirx {
+ hdmirx_hpd: hdmirx-5v-detection {
+ rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
hym8563 {
hym8563_int: hym8563-int {
rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
--
2.48.1