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4344429d3d
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>
141 lines
3.0 KiB
Plaintext
141 lines
3.0 KiB
Plaintext
/*
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* Copyright 2012 Freescale Semiconductor, Inc.
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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/dts-v1/;
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/include/ "imx23.dtsi"
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/ {
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model = "Freescale i.MX23 Evaluation Kit";
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compatible = "fsl,imx23-evk", "fsl,imx23";
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memory {
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reg = <0x40000000 0x08000000>;
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};
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apb@80000000 {
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apbh@80000000 {
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gpmi-nand@8000c000 {
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pinctrl-names = "default";
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pinctrl-0 = <&gpmi_pins_a &gpmi_pins_fixup>;
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status = "okay";
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};
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ssp0: ssp@80010000 {
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compatible = "fsl,imx23-mmc";
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pinctrl-names = "default";
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pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_pins_fixup>;
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bus-width = <4>;
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wp-gpios = <&gpio1 30 0>;
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vmmc-supply = <®_vddio_sd0>;
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status = "okay";
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};
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pinctrl@80018000 {
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pinctrl-names = "default";
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pinctrl-0 = <&hog_pins_a>;
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hog_pins_a: hog@0 {
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reg = <0>;
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fsl,pinmux-ids = <
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0x1123 /* MX23_PAD_LCD_RESET__GPIO_1_18 */
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0x11d3 /* MX23_PAD_PWM3__GPIO_1_29 */
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0x11e3 /* MX23_PAD_PWM4__GPIO_1_30 */
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0x2010 /* MX23_PAD_SSP1_DETECT__SSP1_DETECT */
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>;
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fsl,drive-strength = <0>;
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fsl,voltage = <1>;
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fsl,pull-up = <0>;
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};
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};
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lcdif@80030000 {
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pinctrl-names = "default";
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pinctrl-0 = <&lcdif_24bit_pins_a>;
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lcd-supply = <®_lcd_3v3>;
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display = <&display>;
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status = "okay";
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display: display {
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bits-per-pixel = <32>;
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bus-width = <24>;
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display-timings {
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native-mode = <&timing0>;
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timing0: timing0 {
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clock-frequency = <9200000>;
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hactive = <480>;
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vactive = <272>;
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hback-porch = <15>;
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hfront-porch = <8>;
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vback-porch = <12>;
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vfront-porch = <4>;
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hsync-len = <1>;
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vsync-len = <1>;
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hsync-active = <0>;
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vsync-active = <0>;
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de-active = <1>;
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pixelclk-active = <0>;
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};
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};
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};
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};
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};
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apbx@80040000 {
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pwm: pwm@80064000 {
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pinctrl-names = "default";
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pinctrl-0 = <&pwm2_pins_a>;
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status = "okay";
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};
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auart0: serial@8006c000 {
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pinctrl-names = "default";
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pinctrl-0 = <&auart0_pins_a>;
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status = "okay";
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};
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duart: serial@80070000 {
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pinctrl-names = "default";
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pinctrl-0 = <&duart_pins_a>;
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status = "okay";
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};
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};
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};
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regulators {
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compatible = "simple-bus";
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reg_vddio_sd0: vddio-sd0 {
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compatible = "regulator-fixed";
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regulator-name = "vddio-sd0";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio1 29 0>;
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};
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reg_lcd_3v3: lcd-3v3 {
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compatible = "regulator-fixed";
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regulator-name = "lcd-3v3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio1 18 0>;
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enable-active-high;
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};
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};
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backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm 2 5000000>;
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brightness-levels = <0 4 8 16 32 64 128 255>;
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default-brightness-level = <6>;
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};
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};
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