linux-kernel - [PATCH 6/8] arm64: dts: qcom: apq8016-schneider-hmibsc: Move UART pinctrl to board

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Message-Id: <20250415-msm8916-console-pinctrl-v1-6-a1d33ea994b9@linaro.org>
Date: Tue, 15 Apr 2025 15:52:49 +0200
From: Stephan Gerhold <stephan.gerhold@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Sam Day <me@...cday.com>, Casey Connolly <caleb.connolly@...aro.org>
Subject: [PATCH 6/8] arm64: dts: qcom: apq8016-schneider-hmibsc: Move UART
 pinctrl to board

Prepare for removing the generic UART pinctrl templates from msm8916.dtsi
by copying the definition for the 4 pin UART1 and 2 pin UART2 instance into
apq8016-schneider-hmibsc.dts. Having it defined separately in the board DT
file makes it clear that the set of pins/pull etc are specific to the board
and UART use case.

No functional change.

Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>
---
 .../boot/dts/qcom/apq8016-schneider-hmibsc.dts     | 35 +++++++++++++++++++---
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/apq8016-schneider-hmibsc.dts b/arch/arm64/boot/dts/qcom/apq8016-schneider-hmibsc.dts
index 7a03893530c7b89705f5544491c14edd7120acdc..ce75046ffdac48a206d14499bc711f8f4a777fe5 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-schneider-hmibsc.dts
+++ b/arch/arm64/boot/dts/qcom/apq8016-schneider-hmibsc.dts
@@ -373,6 +373,37 @@ adv7533_switch_suspend: adv7533-switch-suspend-state {
 		bias-disable;
 	};
 
+	blsp_uart1_default: blsp-uart1-default-state {
+		/* TX, RX, CTS_N, RTS_N */
+		pins = "gpio0", "gpio1", "gpio2", "gpio3";
+		function = "blsp_uart1";
+		drive-strength = <16>;
+		bias-disable;
+		bootph-all;
+	};
+
+	blsp_uart1_sleep: blsp-uart1-sleep-state {
+		pins = "gpio0", "gpio1", "gpio2", "gpio3";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	blsp_uart2_default: blsp-uart2-default-state {
+		/* TX, RX */
+		pins = "gpio4", "gpio5";
+		function = "blsp_uart2";
+		drive-strength = <16>;
+		bias-disable;
+	};
+
+	blsp_uart2_sleep: blsp-uart2-sleep-state {
+		pins = "gpio4", "gpio5";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
 	msm_key_volp_n_default: msm-key-volp-n-default-state {
 		pins = "gpio107";
 		function = "gpio";
@@ -469,10 +500,6 @@ &blsp_i2c6_default {
 	drive-strength = <16>;
 };
 
-&blsp_uart1_default {
-	bootph-all;
-};
-
 /* Enable CoreSight */
 &cti0 { status = "okay"; };
 &cti1 { status = "okay"; };

-- 
2.47.2