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author | Hans de Goede <hdegoede@redhat.com> | 2015-08-07 17:22:35 +0200 |
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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 | 9ff5052f7561068207c2b0e7590ad8ca5765f2cc (diff) | |
download | op-kernel-dev-465274d73c7b17578cf1f2444c50086bb2697c2c.zip op-kernel-dev-465274d73c7b17578cf1f2444c50086bb2697c2c.tar.gz |
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 0cf9926..8843420 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 { |