From 5bb9ab94f43ba56d048e101df645349c72a15da9 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Sun, 18 Nov 2018 12:01:33 -0800 Subject: [PATCH] arm64: dts: qcom: qcs404: Specify pinctrl state for UART BLSP1 UART2 is used as debug uart on the EVB development board, define pinmux state for the UART in the platform dtsi and pinconf state for it in the board dts. Reviewed-by: Vinod Koul Signed-off-by: Bjorn Andersson Signed-off-by: Andy Gross --- arch/arm64/boot/dts/qcom/qcs404-evb.dtsi | 14 ++++++++++++++ arch/arm64/boot/dts/qcom/qcs404.dtsi | 14 ++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi index ba4152318854..50b3589c7f15 100644 --- a/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi +++ b/arch/arm64/boot/dts/qcom/qcs404-evb.dtsi @@ -191,3 +191,17 @@ &wifi { status = "okay"; }; + +/* PINCTRL - additions to nodes defined in qcs404.dtsi */ + +&blsp1_uart2_default { + rx { + drive-strength = <2>; + bias-disable; + }; + + tx { + drive-strength = <2>; + bias-disable; + }; +}; diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi index f3d77e7ee0d2..dd918d35f270 100644 --- a/arch/arm64/boot/dts/qcom/qcs404.dtsi +++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi @@ -272,6 +272,18 @@ #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; + + blsp1_uart2_default: blsp1-uart2-default { + rx { + pins = "gpio18"; + function = "blsp_uart_rx_a2"; + }; + + tx { + pins = "gpio17"; + function = "blsp_uart_tx_a2"; + }; + }; }; gcc: clock-controller@1800000 { @@ -343,6 +355,8 @@ clock-names = "core", "iface"; dmas = <&blsp1_dma 5>, <&blsp1_dma 4>; dma-names = "rx", "tx"; + pinctrl-names = "default"; + pinctrl-0 = <&blsp1_uart2_default>; status = "okay"; }; -- 2.17.1