[PATCH v2 9/9] ARM: dts: qcom: apq8064-nexus7: Add SMB345 charger node

Dmitry Osipenko
2020-06-07T14:45:35Z

From: David Heidelberg <david@ixit.cz>

Add SMB345 charger node to Nexus 7 2013 DTS.
Proper charger configuration prevents battery from overcharging.

Original author: Vinay Simha BN <simhavcs@gmail.com>

Signed-off-by: David Heidelberg <david@ixit.cz>
---
.../boot/dts/qcom-apq8064-asus-nexus7-flo.dts | 23 +++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts b/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
index a701d4bac320..7a7784206dd8 100644
--- a/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
@@ -3,6 +3,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/power/summit,smb347-charger.h>
/ {
model = "Asus Nexus7(flo)";
compatible = "asus,nexus7-flo", "qcom,apq8064";
@@ -56,6 +57,11 @@ volume_down {
};
};

+ battery_cell: battery-cell {
+ compatible = "simple-battery";
+ constant-charge-current-max-microamp = <1800000>;
+ };
+
soc {
rpm@108000 {
regulators {
@@ -296,8 +302,25 @@ eeprom@52 {
bq27541@55 {
compatible = "ti,bq27541";
reg = <0x55>;
+ power-supplies = <&power_supply>;
+ monitored-battery = <&battery_cell>;
};

+ power_supply: charger@6a {
+ compatible = "summit,smb345";
+ reg = <0x6a>;
+
+ interrupt-parent = <&tlmm_pinmux>;
+ interrupts = <23 IRQ_TYPE_EDGE_BOTH>;
+
+ summit,chip-temperature-threshold-celsius = <110>;
+ summit,usb-current-limit-microamp = <500000>;
+ summit,enable-charge-control = <SMB3XX_CHG_ENABLE_SW>;
+ summit,enable-usb-charging;
+ summit,enable-otg-charging;
+
+ monitored-battery = <&battery_cell>;
+ };
};
};

--
2.26.0