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Message-Id: <20250904-rock5b-dp-alt-mode-v1-2-23df726b31ce@collabora.com>
Date: Thu, 04 Sep 2025 20:26:03 +0200
From: Sebastian Reichel <sebastian.reichel@...labora.com>
To: Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
Frank Wang <frank.wang@...k-chips.com>,
Zhang Yubing <yubing.zhang@...k-chips.com>
Cc: Andy Yan <andyshrk@....com>,
Maud Spierings <maud_spierings@...mail.com>, linux-phy@...ts.infradead.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: [PATCH RFC 2/2] arm64: dts: rockchip: add USB-C DP AltMode for
ROCK 5B family
Enable support for USB-C DP AltMode to the ROCK 5B/5B+/5T.
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
.../boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi | 83 +++++++++++++++++++---
1 file changed, 72 insertions(+), 11 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi
index 3bbe78810ec6f279a36d51d2fcef4a0f3f53036b..1e284dc48bd3fc2009f5f261e116bf8dbb96d7bd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-5bp-5t.dtsi
@@ -177,6 +177,22 @@ &cpu_l3 {
cpu-supply = <&vdd_cpu_lit_s0>;
};
+&dp0 {
+ status = "okay";
+};
+
+&dp0_in {
+ dp0_in_vp2: endpoint {
+ remote-endpoint = <&vp2_out_dp0>;
+ };
+};
+
+&dp0_out {
+ dp0_out_con: endpoint {
+ remote-endpoint = <&usbdp_phy0_dp_in>;
+ };
+};
+
&gpu {
mali-supply = <&vdd_gpu_s0>;
status = "okay";
@@ -352,21 +368,21 @@ ports {
port@0 {
reg = <0>;
usbc0_hs: endpoint {
- remote-endpoint = <&usb_host0_xhci_to_usbc0>;
+ remote-endpoint = <&usb_host0_xhci_hs>;
};
};
port@1 {
reg = <1>;
usbc0_ss: endpoint {
- remote-endpoint = <&usbdp_phy0_ss>;
+ remote-endpoint = <&usbdp_phy0_ss_out>;
};
};
port@2 {
reg = <2>;
usbc0_sbu: endpoint {
- remote-endpoint = <&usbdp_phy0_sbu>;
+ remote-endpoint = <&usbdp_phy0_dp_out>;
};
};
};
@@ -993,18 +1009,41 @@ &usbdp_phy0 {
orientation-switch;
status = "okay";
- port {
+ ports {
#address-cells = <1>;
#size-cells = <0>;
- usbdp_phy0_ss: endpoint@0 {
+
+ port@0 {
reg = <0>;
- remote-endpoint = <&usbc0_ss>;
+
+ usbdp_phy0_ss_out: endpoint {
+ remote-endpoint = <&usbc0_ss>;
+ };
};
- usbdp_phy0_sbu: endpoint@1 {
+ port@1 {
reg = <1>;
- remote-endpoint = <&usbc0_sbu>;
+
+ usbdp_phy0_ss_in: endpoint {
+ remote-endpoint = <&usb_host0_xhci_ss>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+
+ usbdp_phy0_dp_in: endpoint {
+ remote-endpoint = <&dp0_out_con>;
+ };
+ };
+
+ port@3 {
+ reg = <3>;
+
+ usbdp_phy0_dp_out: endpoint {
+ remote-endpoint = <&usbc0_sbu>;
+ };
};
};
};
@@ -1025,9 +1064,24 @@ &usb_host0_xhci {
usb-role-switch;
status = "okay";
- port {
- usb_host0_xhci_to_usbc0: endpoint {
- remote-endpoint = <&usbc0_hs>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ usb_host0_xhci_hs: endpoint {
+ remote-endpoint = <&usbc0_hs>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ usb_host0_xhci_ss: endpoint {
+ remote-endpoint = <&usbdp_phy0_ss_in>;
+ };
};
};
};
@@ -1066,3 +1120,10 @@ vp1_out_hdmi1: endpoint@...KCHIP_VOP2_EP_HDMI1 {
remote-endpoint = <&hdmi1_in_vp1>;
};
};
+
+&vp2 {
+ vp2_out_dp0: endpoint@a {
+ reg = <ROCKCHIP_VOP2_EP_DP0>;
+ remote-endpoint = <&dp0_in_vp2>;
+ };
+};
--
2.50.1
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