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