linux-kernel - [PATCH v3 09/10] ARM: dts: qcom: apq8064-nexus7: Add SMB345 battery charger

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Message-Id: <20200813213409.24222-10-digetx@gmail.com>
Date:   Fri, 14 Aug 2020 00:34:08 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        David Heidelberg <david@...t.cz>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Bruce E . Robertson" <bruce.e.robertson@...el.com>
Cc:     linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Jonghwa Lee <jonghwa3.lee@...sung.com>,
        John Stultz <john.stultz@...aro.org>,
        Vinay Simha BN <simhavcs@...il.com>,
        linux-tegra@...r.kernel.org
Subject: [PATCH v3 09/10] ARM: dts: qcom: apq8064-nexus7: Add SMB345 battery charger

From: David Heidelberg <david@...t.cz>

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

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

Signed-off-by: David Heidelberg <david@...t.cz>
---
 .../boot/dts/qcom-apq8064-asus-nexus7-flo.dts | 24 +++++++++++++++++++
 1 file changed, 24 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..0c126df20417 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 +57,12 @@ volume_down {
 		};
 	};
 
+	battery_cell: battery-cell {
+		compatible = "simple-battery";
+		constant-charge-current-max-microamp = <1800000>;
+		operating-range-celsius = <0 45>;
+	};
+
 	soc {
 		rpm@...000 {
 			regulators {
@@ -296,8 +303,25 @@ 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>;
+				};
 			};
 		};
 
-- 
2.27.0