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From:   Dmitry Osipenko <digetx@gmail.com>
To:     Lee Jones <lee.jones@linaro.org>, Rob Herring <robh+dt@kernel.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
        Sebastian Reichel <sre@kernel.org>,
        Lubomir Rintel <lkundrak@v3.sk>,
        Mark Brown <broonie@kernel.org>
Cc:     devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
        linux-leds@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v2 6/6] ARM: tegra: acer-a500: Add Embedded Controller
Date:   Sun, 30 Aug 2020 21:53:56 +0300
Message-Id: <20200830185356.5365-7-digetx@gmail.com>
In-Reply-To: <20200830185356.5365-1-digetx@gmail.com>
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This patch adds device-tree node for the Embedded Controller which is
found on the Picasso board. The Embedded Controller itself is ENE KB930,
it provides functions like battery-gauge/LED/GPIO/etc and it uses firmware
that is specifically customized for the Acer A500 device.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 arch/arm/boot/dts/tegra20-acer-a500-picasso.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
index 2d683c9a1a5d..f92712e4bd34 100644
--- a/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
+++ b/arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
@@ -502,6 +502,16 @@ panel_ddc: i2c@1 {
 			reg = <1>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+
+			embedded-controller@58 {
+				compatible = "acer,a500-iconia-ec", "ene,kb930";
+				reg = <0x58>;
+
+				system-power-controller;
+
+				monitored-battery = <&bat1010>;
+				power-supplies = <&mains>;
+			};
 		};
 	};
 
@@ -780,6 +790,13 @@ backlight: backlight {
 		default-brightness-level = <20>;
 	};
 
+	bat1010: battery-2s1p {
+		compatible = "simple-battery";
+		charge-full-design-microamp-hours = <3260000>;
+		energy-full-design-microwatt-hours = <24000000>;
+		operating-range-celsius = <0 40>;
+	};
+
 	/* PMIC has a built-in 32KHz oscillator which is used by PMC */
 	clk32k_in: clock@0 {
 		compatible = "fixed-clock";
-- 
2.27.0