linux-kernel - [PATCH 2/7] arm64: dts: qcom: sdm845-cheza: commonize uart6 pinconf

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Message-ID: <20221016143300.1738550-3-caleb@connolly.tech>
Date:   Sun, 16 Oct 2022 14:33:53 +0000
From:   Caleb Connolly <caleb@...nolly.tech>
To:     caleb@...nolly.tech
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        devicetree@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>
Subject: [PATCH 2/7] arm64: dts: qcom: sdm845-cheza: commonize uart6 pinconf

Use the new qup_uart6_4pin configuration in sd845.dtsi and fix alias
name.

Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
---
 arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 39 ++--------------------
 1 file changed, 3 insertions(+), 36 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
index b5eb8f7eca1d..a8ae6de51af4 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -16,7 +16,7 @@
 / {
 	aliases {
 		bluetooth0 = &bluetooth;
-		hsuart0 = &uart6;
+		serial1 = &uart6;
 		serial0 = &uart9;
 		wifi0 = &wifi;
 	};
@@ -860,6 +860,8 @@ i2c_tunnel: i2c-tunnel {
 &uart6 {
 	status = "okay";

+	pinctrl-0 = <&qup_uart6_4pin>;
+
 	bluetooth: wcn3990-bt {
 		compatible = "qcom,wcn3990-bt";
 		vddio-supply = <&src_pp1800_s4a>;
@@ -1079,41 +1081,6 @@ pinconf {
 	};
 };

-&qup_uart6_default {
-	/* Change pinmux to all 4 pins since CTS and RTS are connected */
-	pinmux {
-		pins = "gpio45", "gpio46",
-		       "gpio47", "gpio48";
-	};
-
-	pinconf-cts {
-		/*
-		 * Configure a pull-down on 45 (CTS) to match the pull of
-		 * the Bluetooth module.
-		 */
-		pins = "gpio45";
-		bias-pull-down;
-	};
-
-	pinconf-rts-tx {
-		/* We'll drive 46 (RTS) and 47 (TX), so no pull */
-		pins = "gpio46", "gpio47";
-		drive-strength = <2>;
-		bias-disable;
-	};
-
-	pinconf-rx {
-		/*
-		 * Configure a pull-up on 48 (RX). This is needed to avoid
-		 * garbage data when the TX pin of the Bluetooth module is
-		 * in tri-state (module powered off or not driving the
-		 * signal yet).
-		 */
-		pins = "gpio48";
-		bias-pull-up;
-	};
-};
-
 &qup_uart9_default {
 	pinconf-tx {
 		pins = "gpio4";
--
2.38.0