linux-kernel - [PATCH v6 6/6] arm64: dts: rockchip: Enable HDMI receiver on rock-5b

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Message-ID: <20250215210417.60074-7-dmitry.osipenko@collabora.com>
Date: Sun, 16 Feb 2025 00:04:17 +0300
From: Dmitry Osipenko <dmitry.osipenko@...labora.com>
To: Shreeya Patel <shreeya.patel@...labora.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil@...all.nl>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	jose.abreu@...opsys.com,
	nelson.costa@...opsys.com,
	shawn.wen@...k-chips.com,
	nicolas.dufresne@...labora.com,
	Sebastian Reichel <sebastian.reichel@...labora.com>
Cc: kernel@...labora.com,
	linux-media@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Tim Surber <me@...surber.de>
Subject: [PATCH v6 6/6] arm64: dts: rockchip: Enable HDMI receiver on rock-5b

From: Sebastian Reichel <sebastian.reichel@...labora.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@...labora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.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