diff mbox series

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

Message ID 20220629155956.1138955-7-nfraprado@collabora.com (mailing list archive)
State New, archived
Headers show
Series Introduce support for MediaTek MT8192 Google Chromebooks | expand

Commit Message

Nícolas F. R. A. Prado June 29, 2022, 3:59 p.m. UTC 
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@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@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 mbox series

Patch

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 {