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    Subject[PATCH v3 5/5] ARM: tegra: acer-a500: Add Embedded Controller
    Date
    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
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