commit c6bdb40d8bd062880632823c7fc4a500494d3b91
author Alex Van Damme <atv@google.com> Thu Dec 03 16:19:09 2020 -0800
committer Alex Van Damme <atv@google.com> Fri Dec 04 00:27:53 2020 +0000
tree 3443dd53493fd5fabb542b962bfd8227254a6ac4
parent bec7135fa17a0e5c8eb0b709bc85083ab4635967

Set pinmuxing for spidev

- We had spidev enabled for the 40-pin header, but didn't actually
set up any muxing -- so whatever you try to do never makes it to the
pins. This corrects that oversight.

Change-Id: I8fcee61017c7c2e5e5e234018858778d3bbbc2c6

arch/arm64/boot/dts/mediatek/mt8167-coral.dts

diff --git a/arch/arm64/boot/dts/mediatek/mt8167-coral.dts b/arch/arm64/boot/dts/mediatek/mt8167-coral.dts
index 73d29a4..c08bb12 100644
--- a/arch/arm64/boot/dts/mediatek/mt8167-coral.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8167-coral.dts
@@ -297,6 +297,16 @@
 		};
 	};
 
+	spi_pins: spi {
+		pins1 {
+			pinmux = <MT8167_PIN_3_EINT3__FUNC_SPI_MI>,
+			         <MT8167_PIN_4_EINT4__FUNC_SPI_MO>,
+			         <MT8167_PIN_5_EINT5__FUNC_SPI_CSB>,
+			         <MT8167_PIN_6_EINT6__FUNC_SPI_CLK>;
+			bias-disable;
+		};
+	};
+
 	pwm_pins: pwm {
 		pins1 {
 			pinmux = <MT8167_PIN_11_EINT11__FUNC_PWM_C>,
@@ -635,6 +645,8 @@
 
 &spi {
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_pins>;
 	spidev@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;