Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
To:     robh+dt@kernel.org
Cc:     krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com,
        angelogioacchino.delregno@collabora.com, hsinyi@chromium.org,
        nfraprado@collabora.com, allen-kh.cheng@mediatek.com,
        gtk3@inbox.ru, luca@z3ntu.xyz, sam.shih@mediatek.com,
        sean.wang@mediatek.com, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, wenst@chromium.org
Subject: [PATCH 07/11] arm64: dts: mediatek: cherry: Enable I2C and SPI controllers
Date:   Thu, 30 Jun 2022 17:33:12 +0200
Message-Id: <20220630153316.308767-8-angelogioacchino.delregno@collabora.com>
In-Reply-To: <20220630153316.308767-1-angelogioacchino.delregno@collabora.com>
References: <20220630153316.308767-1-angelogioacchino.delregno@collabora.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

This platform uses eight I2C controllers and one SPI controller:
in preparation for enabling devices attached to these controllers,
add basic configuration to enable the busses.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../boot/dts/mediatek/mt8195-cherry.dtsi      | 150 ++++++++++++++++++
 1 file changed, 150 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 2f70341bba91..23a86d07274c 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -9,6 +9,13 @@
 
 / {
 	aliases {
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+		i2c7 = &i2c7;
 		mmc0 = &mmc0;
 		serial0 = &uart0;
 	};
@@ -88,6 +95,65 @@ ppvar_sys: regulator-ppvar-sys {
 	};
 };
 
+&i2c0 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pin>;
+};
+
+&i2c1 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	i2c-scl-internal-delay-ns = <12500>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pin>;
+};
+
+&i2c2 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pin>;
+};
+
+&i2c3 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pin>;
+};
+
+&i2c4 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c4_pin>;
+};
+
+&i2c5 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c5_pin>;
+};
+
+&i2c7 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c7_pin>;
+};
+
 &mmc0 {
 	status = "okay";
 
@@ -300,6 +366,68 @@ &pio {
 		"AP_SPI_FLASH_MOSI",
 		"AP_SPI_FLASH_MISO";
 
+	i2c0_pin: i2c0-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO8__FUNC_SDA0>,
+				 <PINMUX_GPIO9__FUNC_SCL0>;
+			bias-disable;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c1_pin: i2c1-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO10__FUNC_SDA1>,
+				 <PINMUX_GPIO11__FUNC_SCL1>;
+			bias-pull-up = <1000>;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c2_pin: i2c2-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO12__FUNC_SDA2>,
+				 <PINMUX_GPIO13__FUNC_SCL2>;
+			bias-disable;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c3_pin: i2c3-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO14__FUNC_SDA3>,
+				 <PINMUX_GPIO15__FUNC_SCL3>;
+			bias-pull-up = <1000>;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c4_pin: i2c4-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO16__FUNC_SDA4>,
+				 <PINMUX_GPIO17__FUNC_SCL4>;
+			bias-pull-up = <1000>;
+			drive-strength = <MTK_DRIVE_4mA>;
+		};
+	};
+
+	i2c5_pin: i2c5-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO29__FUNC_SCL5>,
+				 <PINMUX_GPIO30__FUNC_SDA5>;
+			bias-disable;
+			drive-strength-microamp = <1000>;
+		};
+	};
+
+	i2c7_pin: i2c7-default-pins {
+		pins-bus {
+			pinmux = <PINMUX_GPIO27__FUNC_SCL7>,
+				 <PINMUX_GPIO28__FUNC_SDA7>;
+			bias-disable;
+		};
+	};
+
 	mmc0_pins_default: mmc0-default-pins {
 		pins-cmd-dat {
 			pinmux = <PINMUX_GPIO126__FUNC_MSDC0_DAT0>,
@@ -407,12 +535,34 @@ pins-low-power-pupd {
 			bias-pull-down = <MTK_PUPD_SET_R1R0_01>;
 		};
 	};
+
+	spi0_pins: spi0-default-pins {
+		pins-cs-mosi-clk {
+			pinmux = <PINMUX_GPIO132__FUNC_SPIM0_CSB>,
+				 <PINMUX_GPIO134__FUNC_SPIM0_MO>,
+				 <PINMUX_GPIO133__FUNC_SPIM0_CLK>;
+			bias-disable;
+		};
+
+		pins-miso {
+			pinmux = <PINMUX_GPIO135__FUNC_SPIM0_MI>;
+			bias-pull-down;
+		};
+	};
 };
 
 &pmic {
 	interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;
 };
 
+&spi0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+	mediatek,pad-select = <0>;
+};
+
 &uart0 {
 	status = "okay";
 };
-- 
2.35.1