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video: mxsfb: Introduce regulator support

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Instead of using a custom binding for retrieving the GPIO that activates the
LCD from devicetree, use a standard regulator.

This approach has the advantage to be more generic.

For example: in the case of a board that has a PMIC supplying the LCD voltage,
the current approach would not work, as it only searches for a GPIO pin.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Fabio Estevam
2013-04-07 15:44:59 -03:00
committed by Shawn Guo
parent ac77bc227e
commit 4344429d3d
4 changed files with 43 additions and 24 deletions
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11
arch/arm/boot/dts/imx28-evk.dts
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@@ -123,7 +123,7 @@
pinctrl-names = "default";
pinctrl-0 = <&lcdif_24bit_pins_a
&lcdif_pins_evk>;
panel-enable-gpios = <&gpio3 30 0>;
lcd-supply = <&reg_lcd_3v3>;
display = <&display>;
status = "okay";
@@ -310,6 +310,15 @@
gpio = <&gpio3 8 0>;
enable-active-high;
};
reg_lcd_3v3: lcd-3v3 {
compatible = "regulator-fixed";
regulator-name = "lcd-3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio3 30 0>;
enable-active-high;
};
};
sound {