diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2015-08-07 17:22:35 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2015-09-27 10:21:14 +0200 |
| commit | 465274d73c7b17578cf1f2444c50086bb2697c2c (patch) | |
| tree | 068a3ec442cb813347bcb327792bcc619bc45d65 /arch/arm/boot/dts/sun6i-a31-colombus.dts | |
| parent | ARM: dts: sunxi: enable otg port on the sun7i-a20-olinuxino-lime2 (diff) | |
| download | linux-465274d73c7b17578cf1f2444c50086bb2697c2c.tar.xz linux-465274d73c7b17578cf1f2444c50086bb2697c2c.zip | |
ARM: dts: sun6i: Columbus: Add i2c controller for communicating with the LCD
The Colombus development kit uses an optional 2048x1536 edp panel using
an anx9804 parallel lcd to edp converter. The anx9804 chip is controlled
via an i2c bus which is connected to 2 regular gpio pins.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/sun6i-a31-colombus.dts')
| -rw-r--r-- | arch/arm/boot/dts/sun6i-a31-colombus.dts | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun6i-a31-colombus.dts b/arch/arm/boot/dts/sun6i-a31-colombus.dts index 0cf9926d1e93..8843420a4cba 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 { @@ -112,6 +122,13 @@ 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 { |