[PATCH v4 06/19] arm64: dts: mediatek: asurada: Enable and configure I2C and SPI busses

Nícolas F. R. A. Prado nfraprado at collabora.com
Wed Jun 29 08:59:43 PDT 2022


The Asurada platform has five I2C controllers and two SPI controllers
that are used. In preparation for enabling the devices connected to
these controllers, enable and configure their busses.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
Tested-by: Chen-Yu Tsai <wenst at chromium.org>

---

Changes in v4:
- Switched mediatek,drive-strength-adv for drive-strength-microamp
- Switched mediatek,pull-up-adv for bias-pull-up

 .../boot/dts/mediatek/mt8192-asurada.dtsi     | 126 ++++++++++++++++++
 1 file changed, 126 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index ca55dd095e80..72dc974fe6fc 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -85,6 +85,47 @@ ppvar_sys: regulator-var-sys {
 	};
 };
 
+&i2c0 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+};
+
+&i2c1 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+};
+
+&i2c2 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	clock-stretch-ns = <12600>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+};
+
+&i2c3 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+};
+
+&i2c7 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c7_pins>;
+};
+
 &pio {
 	/* 220 lines */
 	gpio-line-names = "I2S_DP_LRCK",
@@ -311,6 +352,91 @@ &pio {
 			  "AUD_DAT_MOSI1",
 			  "AUD_DAT_MISO0",
 			  "AUD_DAT_MISO1";
+
+	i2c0_pins: i2c0-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO204__FUNC_SCL0>,
+				 <PINMUX_GPIO205__FUNC_SDA0>;
+			bias-pull-up = <MTK_PULL_SET_RSEL_011>;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c1_pins: i2c1-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO118__FUNC_SCL1>,
+				 <PINMUX_GPIO119__FUNC_SDA1>;
+			bias-pull-up = <MTK_PULL_SET_RSEL_011>;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c2_pins: i2c2-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO141__FUNC_SCL2>,
+				 <PINMUX_GPIO142__FUNC_SDA2>;
+			bias-pull-up = <MTK_PULL_SET_RSEL_011>;
+		};
+	};
+
+	i2c3_pins: i2c3-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO160__FUNC_SCL3>,
+				 <PINMUX_GPIO161__FUNC_SDA3>;
+			bias-disable;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c7_pins: i2c7-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO124__FUNC_SCL7>,
+				 <PINMUX_GPIO125__FUNC_SDA7>;
+			bias-disable;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	spi1_pins: spi1-default-pins {
+		pins-cs-mosi-clk {
+			pinmux = <PINMUX_GPIO157__FUNC_SPI1_A_CSB>,
+				 <PINMUX_GPIO159__FUNC_SPI1_A_MO>,
+				 <PINMUX_GPIO156__FUNC_SPI1_A_CLK>;
+			bias-disable;
+		};
+
+		pins-miso {
+			pinmux = <PINMUX_GPIO158__FUNC_SPI1_A_MI>;
+			bias-pull-down;
+		};
+	};
+
+	spi5_pins: spi5-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO38__FUNC_SPI5_A_MI>,
+				 <PINMUX_GPIO37__FUNC_GPIO37>,
+				 <PINMUX_GPIO39__FUNC_SPI5_A_MO>,
+				 <PINMUX_GPIO36__FUNC_SPI5_A_CLK>;
+			bias-disable;
+		};
+	};
+};
+
+&spi1 {
+	status = "okay";
+
+	mediatek,pad-select = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi1_pins>;
+};
+
+&spi5 {
+	status = "okay";
+
+	cs-gpios = <&pio 37 GPIO_ACTIVE_LOW>;
+	mediatek,pad-select = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi5_pins>;
 };
 
 &uart0 {
-- 
2.36.1




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