arm64: dts: mediatek: asurada: Enable and configure I2C and SPI busses

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>
Link: https://lore.kernel.org/r/20220629155956.1138955-7-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index ca55dd0..72dc974 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -85,6 +85,47 @@
        };
 };
 
+&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 @@
                          "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 {