linux-kernel - [PATCH v2 07/18] ARM: dts: s5pv210: Add FSA9480 support to Aries boards

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Date:   Fri,  1 May 2020 16:50:08 -0700
From:   Jonathan Bakker <xc-racer2@...e.ca>
To:     kgene@...nel.org, krzk@...nel.org, robh+dt@...nel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jonathan Bakker <xc-racer2@...e.ca>
Subject: [PATCH v2 07/18] ARM: dts: s5pv210: Add FSA9480 support to Aries boards

The Fairchild FSA9480 is a USB mux connected over i2c-gpio.

Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
---
 arch/arm/boot/dts/s5pv210-aries.dtsi | 36 ++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index 7d001c22c532..6233884713cb 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -14,6 +14,7 @@
 	aliases {
 		i2c4 = &i2c_sound;
 		i2c6 = &i2c_pmic;
+		i2c7 = &i2c_musb;
 		i2c9 = &i2c_fuel;
 	};
 
@@ -358,6 +359,28 @@
 		};
 	};
 
+	i2c_musb: i2c-gpio-3 {
+		compatible = "i2c-gpio";
+		sda-gpios = <&gpj3 4 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpj3 5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		i2c-gpio,delay-us = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&musb_i2c_pins>;
+
+		fsa9480: musb@25 {
+			compatible = "fcs,fsa9480";
+			reg = <0x25>;
+			interrupt-parent = <&gph2>;
+			interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&musb_irq>;
+		};
+	};
+
 	i2c_fuel: i2c-gpio-4 {
 		compatible = "i2c-gpio";
 		sda-gpios = <&mp05 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
@@ -480,6 +503,13 @@
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
 
+	musb_irq: musq-irq {
+		samsung,pins = "gph2-7";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
 	tf_detect: tf-detect {
 		samsung,pins = "gph3-4";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
@@ -500,6 +530,12 @@
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
 
+	musb_i2c_pins: musb-i2c-pins {
+		samsung,pins = "gpj3-4", "gpj3-5";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
 	pmic_i2c_pins: pmic-i2c-pins {
 		samsung,pins = "gpj4-0", "gpj4-3";
 		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
-- 
2.20.1