linux-kernel - [PATCH 1/2] arm64: dts: mediatek: add spidev support for mt8365-evk board

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Message-Id: <20230118-mt8365-spi-support-v1-1-842a21e50494@baylibre.com>
Date:   Thu, 19 Jan 2023 17:28:49 +0100
From:   Alexandre Mergnat <amergnat@...libre.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        Alexandre Mergnat <amergnat@...libre.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 1/2] arm64: dts: mediatek: add spidev support for mt8365-evk board

Add SPI pins and spidev support for mt8365-evk.

Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
---
 arch/arm64/boot/dts/mediatek/mt8365-evk.dts | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
index 275ea3a0e708..c1d603cb129a 100644
--- a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
@@ -142,6 +142,17 @@ pins {
 				 <MT8365_PIN_116_I2S_BCK__FUNC_PWM_C>;
 		};
 	};
+
+	spi_pins: spi-pins {
+		pins {
+			pinmux = <MT8365_PIN_26_SPI_CS__FUNC_SPI_CSB>,
+				 <MT8365_PIN_27_SPI_CK__FUNC_SPI_CLK>,
+				 <MT8365_PIN_28_SPI_MI__FUNC_SPI_MI>,
+				 <MT8365_PIN_29_SPI_MO__FUNC_SPI_MO>;
+			bias-disable;
+		};
+	};
+
 };
 
 &pwm {
@@ -150,6 +161,19 @@ &pwm {
 	status = "okay";
 };
 
+&spi {
+	pinctrl-0 = <&spi_pins>;
+	pinctrl-names = "default";
+	mediatek,pad-select = <0>;
+	status = "okay";
+
+	spidev@0 {
+		compatible = "mediatek,genio";
+		spi-max-frequency = <5000000>;
+		reg = <0>;
+	};
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_pins>;
 	pinctrl-names = "default";

-- 
b4 0.10.1