[PATCH v3 05/10] arm64: dts: rockchip: enable PCIe on ROCK 4D

[Jonas Karlman]

From: Nicolas Frattaroli <nicolas.frattaroli at collabora.com>

The RADXA ROCK 4D board has a PCIe controller connected to a flat flex
connector, compatible with the one the RPi5 uses.

Enable the associated combphy and pcie controller node, as well as add
the remaining pinctrl definition for the reset.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli at collabora.com>
Link: https://lore.kernel.org/r/20250621-rk3576-rock4d-pcie-v1-1-2b33c9f12955@collabora.com
Signed-off-by: Heiko Stuebner <heiko at sntech.de>

[ upstream commit: 29ff4bbff793334d6aff2238fdc3ccf3859d60da ]

(cherry picked from commit 2c6901d159a6586975f2e5edf8faabd015e9e03d)
Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
v3: New patch
---
 .../src/arm64/rockchip/rk3576-rock-4d.dts         | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/dts/upstream/src/arm64/rockchip/rk3576-rock-4d.dts b/dts/upstream/src/arm64/rockchip/rk3576-rock-4d.dts
index 6756403111e7..0388d72076bf 100644
--- a/dts/upstream/src/arm64/rockchip/rk3576-rock-4d.dts
+++ b/dts/upstream/src/arm64/rockchip/rk3576-rock-4d.dts
@@ -194,6 +194,10 @@
 	};
 };
 
+&combphy0_ps {
+	status = "okay";
+};
+
 &combphy1_psu {
 	status = "okay";
 };
@@ -652,6 +656,14 @@
 	};
 };
 
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_reset>;
+	reset-gpios = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc_3v3_pcie>;
+	status = "okay";
+};
+
 &pinctrl {
 	hym8563 {
 		hym8563_int: hym8563-int {
@@ -678,6 +690,9 @@
 		pcie_pwren: pcie-pwren {
 			rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
+		pcie_reset: pcie-reset {
+			rockchip,pins = <2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
 	};
 
 	usb {
-- 
2.51.0