linux-kernel - [PATCH 1/3] ARM: dts: exynos: add smb347 charger to p4note

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Date:   Wed,  2 Feb 2022 17:34:12 +0100
From:   Martin Jücker <martin.juecker@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Russell King <linux@...linux.org.uk>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Martin Jücker <martin.juecker@...il.com>
Subject: [PATCH 1/3] ARM: dts: exynos: add smb347 charger to p4note

Add device tree entry to support the Summit SMB347 charger which is
built into the p4note devices.

Signed-off-by: Martin Jücker <martin.juecker@...il.com>
---
 arch/arm/boot/dts/exynos4412-p4note.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-p4note.dtsi b/arch/arm/boot/dts/exynos4412-p4note.dtsi
index b386a9b8e188..63459db653ea 100644
--- a/arch/arm/boot/dts/exynos4412-p4note.dtsi
+++ b/arch/arm/boot/dts/exynos4412-p4note.dtsi
@@ -16,6 +16,7 @@
 #include <dt-bindings/input/linux-event-codes.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/samsung.h>
+#include <dt-bindings/power/summit,smb347-charger.h>
 
 / {
 	compatible = "samsung,p4note", "samsung,exynos4412", "samsung,exynos4";
@@ -182,6 +183,27 @@ stmpe_adc {
 			};
 		};
 	};
+
+	i2c-gpio-4 {
+		compatible = "i2c-gpio";
+		sda-gpios = <&gpm2 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&gpm2 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+
+		i2c-gpio,delay-us = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		charger@6 {
+			compatible = "summit,smb347";
+			reg = <0x6>;
+			summit,enable-usb-charging;
+			summit,enable-charge-control = <SMB3XX_CHG_ENABLE_SW>;
+			summit,fast-voltage-threshold-microvolt = <2600000>;
+			summit,chip-temperature-threshold-celsius = <130>;
+			summit,usb-current-limit-microamp = <1800000>;
+		};
+	};
+
 };
 
 &adc {
-- 
2.25.1