From: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Date: Tue, 10 Jun 2025 17:25:39 +0000 (+0200)
Subject: arm64: dts: qcom: x1e80100-hp-x14: add usb-1-ss1-sbu-mux
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b9137c58c737c928d71c3dd2bb3abc47abdd05b6;p=thirdparty%2Flinux.git

arm64: dts: qcom: x1e80100-hp-x14: add usb-1-ss1-sbu-mux

The usb_1_1 port doesn't have the PS8830 repeater, but apparently some
MUX for DP altmode control. After a suggestion from sgerhold on
'#aarch64-laptops' I added gpio-sbu-mux nodes from the x1e80100-QCP
tree, and this appears to work well. It is still guesswork, but
working guesswork.

Added and rewired for usb_1_1

Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Link: https://lore.kernel.org/r/20250610-hp-x14-v3-1-35d5b50efae0@oldschoolsolutions.biz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-hp-omnibook-x14.dts b/arch/arm64/boot/dts/qcom/x1e80100-hp-omnibook-x14.dts
index 10b3af5e79fb6..315987f2b62b8 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-hp-omnibook-x14.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-hp-omnibook-x14.dts
@@ -153,6 +153,14 @@
 						remote-endpoint = <&usb_1_ss1_qmpphy_out>;
 					};
 				};
+
+				port@2 {
+					reg = <2>;
+
+					pmic_glink_ss1_sbu: endpoint {
+						remote-endpoint = <&usb_1_ss1_sbu_mux>;
+					};
+				};
 			};
 		};
 	};
@@ -477,6 +485,25 @@
 			};
 		};
 	};
+
+	usb-1-ss1-sbu-mux {
+		compatible = "onnn,fsusb42", "gpio-sbu-mux";
+
+		enable-gpios = <&tlmm 179 GPIO_ACTIVE_LOW>;
+		select-gpios = <&tlmm 178 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&usb_1_ss1_sbu_default>;
+		pinctrl-names = "default";
+
+		mode-switch;
+		orientation-switch;
+
+		port {
+			usb_1_ss1_sbu_mux: endpoint {
+				remote-endpoint = <&pmic_glink_ss1_sbu>;
+			};
+		};
+	};
 };
 
 &apps_rsc {
@@ -1419,6 +1446,30 @@
 		};
 	};
 
+	usb_1_ss1_sbu_default: usb-1-ss1-sbu-state {
+		mode-pins {
+			pins = "gpio177";
+			function = "gpio";
+			bias-disable;
+			drive-strength = <2>;
+			output-high;
+		};
+
+		oe-n-pins {
+			pins = "gpio179";
+			function = "gpio";
+			bias-disable;
+			drive-strength = <2>;
+		};
+
+		sel-pins {
+			pins = "gpio178";
+			function = "gpio";
+			bias-disable;
+			drive-strength = <2>;
+		};
+	};
+
 	wcd_default: wcd-reset-n-active-state {
 		pins = "gpio191";
 		function = "gpio";