linux-kernel - [RFC PATCH 2/4] arm64: dts: qcom: msm8998: Add blsp1

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Message-Id: <20191017221843.8130-3-jeffrey.l.hugo@gmail.com>
Date:   Thu, 17 Oct 2019 15:18:41 -0700
From:   Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To:     agross@...nel.org, bjorn.andersson@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Subject: [RFC PATCH 2/4] arm64: dts: qcom: msm8998: Add blsp1_uart3

The blsp1_uart3 peripheral appears to be commonly used for interfacing with
other SoCs on a platform, such as a wcn3990 to provide bluetooth.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
---
 arch/arm64/boot/dts/qcom/msm8998-pins.dtsi | 13 +++++++++++++
 arch/arm64/boot/dts/qcom/msm8998.dtsi      | 14 ++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8998-pins.dtsi b/arch/arm64/boot/dts/qcom/msm8998-pins.dtsi
index 6db70acd38ee..e32d3ab395ea 100644
--- a/arch/arm64/boot/dts/qcom/msm8998-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998-pins.dtsi
@@ -75,4 +75,17 @@
 			drive-strength = <2>;   /* 2 mA */
 		};
 	};
+
+	blsp1_uart3_on: blsp1_uart3_on {
+		mux {
+			pins = "gpio45", "gpio46", "gpio47", "gpio48";
+			function = "blsp_uart3_a";
+		};
+
+		config {
+			pins = "gpio45", "gpio46", "gpio47", "gpio48";
+			drive-strength = <2>;
+			bias-disable;
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
index a3465f6bae84..b69a7f38dd36 100644
--- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
@@ -1214,6 +1214,20 @@
 			qcom,num-ees = <4>;
 		};
 
+		blsp1_uart3: serial@...1000 {
+			compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
+			reg = <0x0c171000 0x1000>;
+			interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&gcc GCC_BLSP1_UART3_APPS_CLK>,
+				 <&gcc GCC_BLSP1_AHB_CLK>;
+			clock-names = "core", "iface";
+			dmas = <&blsp1_dma 4>, <&blsp1_dma 5>;
+			dma-names = "tx", "rx";
+			pinctrl-names = "default";
+			pinctrl-0 = <&blsp1_uart3_on>;
+			status = "disabled";
+		};
+
 		blsp1_i2c1: i2c@...5000 {
 			compatible = "qcom,i2c-qup-v2.2.1";
 			reg = <0x0c175000 0x600>;
-- 
2.17.1