linux-kernel - [PATCH v1] arm64: dts: qcom: ipq5424: fix and relocate uart1 gpio configurations

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250312091418.3265352-1-quic_mmanikan@quicinc.com>
Date: Wed, 12 Mar 2025 14:44:18 +0530
From: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
To: <andersson@...nel.org>, <konradybcio@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <quic_srichara@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <quic_varada@...cinc.com>
Subject: [PATCH v1] arm64: dts: qcom: ipq5424: fix and relocate uart1 gpio configurations

Update the bias configuration for UART1 TX and RX pins to ensure correct
settings for RDP466.

Additionally, move the UART1 GPIO configurations from the common .dtsi
file to the RDP-specific .dts files to account for differing bias
configurations across RDPs of IPQ5424.

Fixes: 1a91d2a6021e ("arm64: dts: qcom: add IPQ5424 SoC and rdp466 board support")
Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
---
 arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts | 16 +++++++++++++++-
 arch/arm64/boot/dts/qcom/ipq5424.dtsi       |  7 -------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts b/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
index b6e4bb3328b3..7b85aaa11ee8 100644
--- a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
+++ b/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts
@@ -147,10 +147,24 @@ data-pins {
 			bias-pull-up;
 		};
 	};
+
+	uart1_tx_state: uart1-tx-state {
+		pins = "gpio44";
+		function = "uart1";
+		drive-strength = <8>;
+		bias-pull-down;
+	};
+
+	uart1_rx_state: uart1-rx-state {
+		pins = "gpio43";
+		function = "uart1";
+		drive-strength = <8>;
+		bias-pull-up;
+	};
 };
 
 &uart1 {
-	pinctrl-0 = <&uart1_pins>;
+	pinctrl-0 = <&uart1_tx_state>, <&uart1_rx_state>;
 	pinctrl-names = "default";
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi
index 7a7ad700a382..e190c43c1b11 100644
--- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi
@@ -262,13 +262,6 @@ tlmm: pinctrl@...0000 {
 			gpio-ranges = <&tlmm 0 0 50>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
-
-			uart1_pins: uart1-state {
-				pins = "gpio43", "gpio44";
-				function = "uart1";
-				drive-strength = <8>;
-				bias-pull-up;
-			};
 		};
 
 		gcc: clock-controller@...0000 {

base-commit: 0a2f889128969dab41861b6e40111aa03dc57014
-- 
2.34.1