linux-kernel - [PATCH 07/13] arm: dts: s5pv210: galaxys: Add si470x fmradio

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Date:   Sun, 26 Apr 2020 11:35:58 -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:     Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>,
        Jonathan Bakker <xc-racer2@...e.ca>
Subject: [PATCH 07/13] arm: dts: s5pv210: galaxys: Add si470x fmradio

From: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>

Add support for the Silicon Labs si4709 fmradio, which can be found
on Galaxy S GT-i9000 (but not most other Galaxy S variants).

Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
---
 arch/arm/boot/dts/s5pv210-aries.dtsi  |  2 +-
 arch/arm/boot/dts/s5pv210-galaxys.dts | 47 +++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index ef966d13d83d..12575d64aa06 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -11,7 +11,7 @@
 / {
 	compatible = "samsung,aries", "samsung,s5pv210";
 
-	aliases {
+	aliases: aliases {
 		i2c4 = &i2c_sound;
 		i2c5 = &i2c_accel;
 		i2c6 = &i2c_pmic;
diff --git a/arch/arm/boot/dts/s5pv210-galaxys.dts b/arch/arm/boot/dts/s5pv210-galaxys.dts
index 2eff1e66a2a5..f5c13eb8ae71 100644
--- a/arch/arm/boot/dts/s5pv210-galaxys.dts
+++ b/arch/arm/boot/dts/s5pv210-galaxys.dts
@@ -49,12 +49,59 @@
 			wakeup-source;
 		};
 	};
+
+	i2c_fmradio: i2c-gpio-8 {
+		compatible = "i2c-gpio";
+		sda-gpios = <&gpd1 2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpd1 3 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		i2c-gpio,delay-us = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&fm_i2c_pins>;
+
+		fmradio@10 {
+			compatible = "silabs,si470x";
+			reg = <0x10>;
+			interrupt-parent = <&gpj2>;
+			interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+			reset-gpios = <&gpj2 5 GPIO_ACTIVE_HIGH>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&fm_irq &fm_rst>;
+		};
+	};
+};
+
+&aliases {
+	i2c8 = &i2c_fmradio;
 };
 
 &pinctrl0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sleep_cfg>;
 
+	fm_i2c_pins: fm-i2c-pins {
+		samsung,pins = "gpd1-2", "gpd1-3";
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
+	fm_irq: fm-irq {
+		samsung,pins = "gpj2-4";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
+		samsung,pin-pud = <S3C64XX_PIN_PULL_UP>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
+	fm_rst: fm-rst {
+		samsung,pins = "gpj2-5";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
 	massmemory_en: massmemory-en {
 		samsung,pins = "gpj2-7";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
-- 
2.20.1