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ARM: tegra: acer-a500: Add Embedded Controller

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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>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko
2020-11-16 22:48:27 +03:00
committed by Thierry Reding
parent dd2a21d093
commit d3e815eaab
1 changed files with 17 additions and 0 deletions
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17
arch/arm/boot/dts/tegra20-acer-a500-picasso.dts
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@ -512,6 +512,16 @@
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>;
};
};
};
@ -794,6 +804,13 @@
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";