The Colombus development kit uses an optional 2048x1536 edp panel using an anx9804 parallel lcd to edp convertor. The anx9804 chip is controlled via an i2c bus which is connected to 2 regular gpio pins.
Signed-off-by: Hans de Goede <[email protected]> --- arch/arm/boot/dts/sun6i-a31-colombus.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/boot/dts/sun6i-a31-colombus.dts b/arch/arm/boot/dts/sun6i-a31-colombus.dts index 0d0b6f2..0e51249 100644 --- a/arch/arm/boot/dts/sun6i-a31-colombus.dts +++ b/arch/arm/boot/dts/sun6i-a31-colombus.dts @@ -60,6 +60,16 @@ chosen { stdout-path = "serial0:115200n8"; }; + + i2c_lcd: i2c@0 { + /* The lcd panel i2c interface is hooked up via gpios */ + compatible = "i2c-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&i2c_lcd_pins>; + gpios = <&pio 0 23 GPIO_ACTIVE_HIGH>, /* PA23, sda */ + <&pio 0 24 GPIO_ACTIVE_HIGH>; /* PA24, scl */ + i2c-gpio,delay-us = <5>; + }; }; &ehci1 { @@ -124,6 +134,13 @@ allwinner,drive = <SUN4I_PINCTRL_10_MA>; allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; }; + + i2c_lcd_pins: i2c_lcd_pin@0 { + allwinner,pins = "PA23", "PA24"; + allwinner,function = "gpio_out"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; + }; }; ®_usb2_vbus { -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
