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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 <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Bjorn Andersson 2018-11-18 12:01:33 -08:00 committed by Andy Gross
parent 1d918e9a8c
commit 5bb9ab94f4
2 changed files with 28 additions and 0 deletions
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14
arch/arm64/boot/dts/qcom/qcs404-evb.dtsi
View File

@ -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;
};
};

14
arch/arm64/boot/dts/qcom/qcs404.dtsi
View File

@ -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";
};