ARM: dts: exynos: add charger and battery to p4note

Add device tree entry to support the Summit SMB347 charger which is
built into the p4note devices, as well as a simple battery node.

Signed-off-by: Martin Jücker <martin.juecker@gmail.com>
Link: https://lore.kernel.org/r/d7f7b0f87a18b5cc44ba97390461c15469439829.1643919230.git.martin.juecker@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

diff --git a/arch/arm/boot/dts/exynos4412-p4note.dtsi b/arch/arm/boot/dts/exynos4412-p4note.dtsi
index 22c3086e00769de06ef6ff2a77e7c6c06e07a7a6..79ad086075f90c13a34d9afd93cda3b0b92d1483 100644 (file)
--- 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";
@@ -114,6 +115,17 @@
                clock-names = "ext_clock";
        };
 
+       battery_cell: battery-cell {
+               compatible = "simple-battery";
+               device-chemistry = "lithium-ion";
+               constant-charge-current-max-microamp = <2200000>;
+               precharge-current-microamp = <250000>;
+               charge-term-current-microamp = <250000>;
+               constant-charge-voltage-max-microvolt = <4200000>;
+
+               power-supplies = <&power_supply>;
+       };
+
        i2c-gpio-1 {
                compatible = "i2c-gpio";
                sda-gpios = <&gpy2 4 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
@@ -182,6 +194,28 @@
                        };
                };
        };
+
+       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>;
+
+               power_supply: 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>;
+
+                       monitored-battery = <&battery_cell>;
+               };
+       };
 };
 
 &adc {