ARM: mxs: apf28dev: Add LCD and backlight support
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Julien Boibessot <julien.boibessot@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/boot/dts/imx28-apf28dev.dts b/arch/arm/boot/dts/imx28-apf28dev.dts
index 8e765ae..1643d25 100644
--- a/arch/arm/boot/dts/imx28-apf28dev.dts
+++ b/arch/arm/boot/dts/imx28-apf28dev.dts
@@ -46,6 +46,26 @@
fsl,voltage = <1>;
fsl,pull-up = <0>;
};
+
+ lcdif_pins_apf28dev: lcdif-apf28dev@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ 0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
+ 0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
+ 0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
+ 0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+ >;
+ fsl,drive-strength = <0>;
+ fsl,voltage = <1>;
+ fsl,pull-up = <0>;
+ };
+ };
+
+ lcdif@80030000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&lcdif_16bit_pins_a
+ &lcdif_pins_apf28dev>;
+ status = "okay";
};
};
@@ -110,4 +130,12 @@
linux,default-trigger = "heartbeat";
};
};
+
+ backlight {
+ compatible = "pwm-backlight";
+
+ pwms = <&pwm 3 191000>;
+ brightness-levels = <0 4 8 16 32 64 128 255>;
+ default-brightness-level = <6>;
+ };
};