diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-04-07 15:44:59 -0300 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-04-08 15:44:55 +0800 |
| commit | 4344429d3d926d219671f607125cff51223a140a (patch) | |
| tree | 38d3c3c93f5af889d98f8866962f142ff99f90d8 /arch/arm/boot | |
| parent | ac77bc227e96bb6d42b86ee5e20e4fa6a743d632 (diff) | |
| download | linux-4344429d3d926d219671f607125cff51223a140a.tar.bz2 | |
video: mxsfb: Introduce regulator support
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>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/imx23-evk.dts | 11 | ||||
| -rw-r--r-- | arch/arm/boot/dts/imx28-evk.dts | 11 |
2 files changed, 20 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts index 7880e17e27f5..da0588a04131 100644 --- a/arch/arm/boot/dts/imx23-evk.dts +++ b/arch/arm/boot/dts/imx23-evk.dts @@ -59,7 +59,7 @@ lcdif@80030000 { pinctrl-names = "default"; pinctrl-0 = <&lcdif_24bit_pins_a>; - panel-enable-gpios = <&gpio1 18 0>; + lcd-supply = <®_lcd_3v3>; display = <&display>; status = "okay"; @@ -120,6 +120,15 @@ regulator-max-microvolt = <3300000>; gpio = <&gpio1 29 0>; }; + + reg_lcd_3v3: lcd-3v3 { + compatible = "regulator-fixed"; + regulator-name = "lcd-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio1 18 0>; + enable-active-high; + }; }; backlight { diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts index 2d4ea3bfff4c..3637bf3b1d59 100644 --- a/arch/arm/boot/dts/imx28-evk.dts +++ b/arch/arm/boot/dts/imx28-evk.dts @@ -123,7 +123,7 @@ pinctrl-names = "default"; pinctrl-0 = <&lcdif_24bit_pins_a &lcdif_pins_evk>; - panel-enable-gpios = <&gpio3 30 0>; + lcd-supply = <®_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 { |