From ecbdce2041ee09cb3a046fd2b7d000fa5e333773 Mon Sep 17 00:00:00 2001
From: Konrad Dybcio <quic_kdybcio@quicinc.com>
Date: Mon, 26 Aug 2024 16:37:53 +0200
Subject: [PATCH] arm64: dts: qcom: x1e80100: Add UART2

GENI SE2 within QUP0 is used as UART on some devices, describe it.
While at it, rewrite the adjacent UART21 pins node to make it more
easily modifiable.

Signed-off-by: Konrad Dybcio <quic_kdybcio@quicinc.com>
Link: https://lore.kernel.org/r/20240826-topic-sl7-v2-4-c32ebae78789@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/x1e80100.dtsi | 70 ++++++++++++++++++++++++--
 1 file changed, 65 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 3011ee55ddf3..2bdd1e2a86f7 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -2143,6 +2143,28 @@
 				status = "disabled";
 			};
 
+			uart2: serial@b88000 {
+				compatible = "qcom,geni-uart";
+				reg = <0 0x00b88000 0 0x4000>;
+
+				interrupts = <GIC_SPI 584 IRQ_TYPE_LEVEL_HIGH>;
+
+				clocks = <&gcc GCC_QUPV3_WRAP0_S2_CLK>;
+				clock-names = "se";
+
+				interconnects = <&clk_virt MASTER_QUP_CORE_0 QCOM_ICC_TAG_ALWAYS
+						 &clk_virt SLAVE_QUP_CORE_0 QCOM_ICC_TAG_ALWAYS>,
+						<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
+						 &config_noc SLAVE_QUP_0 QCOM_ICC_TAG_ALWAYS>;
+				interconnect-names = "qup-core",
+						     "qup-config";
+
+				pinctrl-0 = <&qup_uart2_default>;
+				pinctrl-names = "default";
+
+				status = "disabled";
+			};
+
 			spi2: spi@b88000 {
 				compatible = "qcom,geni-spi";
 				reg = <0 0x00b88000 0 0x4000>;
@@ -5558,12 +5580,50 @@
 				bias-disable;
 			};
 
+			qup_uart2_default: qup-uart2-default-state {
+				cts-pins {
+					pins = "gpio8";
+					function = "qup0_se2";
+					drive-strength = <2>;
+					bias-disable;
+				};
+
+				rts-pins {
+					pins = "gpio9";
+					function = "qup0_se2";
+					drive-strength = <2>;
+					bias-disable;
+				};
+
+				tx-pins {
+					pins = "gpio10";
+					function = "qup0_se2";
+					drive-strength = <2>;
+					bias-disable;
+				};
+
+				rx-pins {
+					pins = "gpio11";
+					function = "qup0_se2";
+					drive-strength = <2>;
+					bias-disable;
+				};
+			};
+
 			qup_uart21_default: qup-uart21-default-state {
-				/* TX, RX */
-				pins = "gpio86", "gpio87";
-				function = "qup2_se5";
-				drive-strength = <2>;
-				bias-disable;
+				tx-pins {
+					pins = "gpio86";
+					function = "qup2_se5";
+					drive-strength = <2>;
+					bias-disable;
+				};
+
+				rx-pins {
+					pins = "gpio87";
+					function = "qup2_se5";
+					drive-strength = <2>;
+					bias-disable;
+				};
 			};
 		};
 
-- 
2.25.1