linux-kernel - [PATCH v3 10/10] ARM: tegra: nexus7: Add SMB347 battery charger

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Message-Id: <20200813213409.24222-11-digetx@gmail.com>
Date:   Fri, 14 Aug 2020 00:34:09 +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 10/10] ARM: tegra: nexus7: Add SMB347 battery charger

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

SMB347 is a battery charger controller which is found on the Nexus 7
device.

Signed-off-by: David Heidelberg <david@...t.cz>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 .../tegra30-asus-nexus7-grouper-common.dtsi   | 24 ++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
index e2d5fbacf9b4..903457292c04 100644
--- a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
+++ b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
@@ -2,6 +2,7 @@
 
 #include <dt-bindings/input/gpio-keys.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/power/summit,smb347-charger.h>
 #include <dt-bindings/thermal/thermal.h>
 
 #include "tegra30.dtsi"
@@ -919,9 +920,24 @@ nct72: temperature-sensor@4c {
 			#thermal-sensor-cells = <1>;
 		};
 
-		battery@55 {
+		fuel-gauge@55 {
 			compatible = "ti,bq27541";
 			reg = <0x55>;
+			power-supplies = <&power_supply>;
+			monitored-battery = <&battery_cell>;
+		};
+
+		power_supply: charger@6a {
+			compatible = "summit,smb347";
+			reg = <0x6a>;
+
+			interrupt-parent = <&gpio>;
+			interrupts = <TEGRA_GPIO(V, 1) IRQ_TYPE_EDGE_BOTH>;
+
+			summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW>;
+			summit,enable-usb-charging;
+
+			monitored-battery = <&battery_cell>;
 		};
 	};
 
@@ -1011,6 +1027,12 @@ backlight: backlight {
 		default-brightness-level = <15>;
 	};
 
+	battery_cell: battery-cell {
+		compatible = "simple-battery";
+		constant-charge-current-max-microamp = <1800000>;
+		operating-range-celsius = <0 45>;
+	};
+
 	/* PMIC has a built-in 32KHz oscillator which is used by PMC */
 	clk32k_in: clock@0 {
 		compatible = "fixed-clock";
-- 
2.27.0