The Hummingbird A31 board has a VGA DAC which converts RGB output from the LCD interface to VGA analog signals.
Add nodes for the VGA DAC, its power supply, and enable this part of the display pipeline. Signed-off-by: Chen-Yu Tsai <[email protected]> --- arch/arm/boot/dts/sun6i-a31-hummingbird.dts | 67 +++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) diff --git a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts index 62287bd2aeb5..b168d6df2b30 100644 --- a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts +++ b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts @@ -63,6 +63,60 @@ stdout-path = "serial0:115200n8"; }; + vga-connector { + compatible = "vga-connector"; + + port { + vga_con_in: endpoint { + remote-endpoint = <&vga_dac_out>; + }; + }; + }; + + vga-dac { + compatible = "dumb-vga-dac"; + vdd-supply = <®_vga_3v3>; + #address-cells = <1>; + #size-cells = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + vga_dac_in: endpoint@0 { + reg = <0>; + remote-endpoint = <&tcon0_out_vga>; + }; + }; + + port@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + + vga_dac_out: endpoint@0 { + reg = <0>; + remote-endpoint = <&vga_con_in>; + }; + }; + }; + }; + + reg_vga_3v3: vga_3v3_regulator { + compatible = "regulator-fixed"; + regulator-name = "vga-3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + enable-active-high; + gpio = <&pio 7 25 GPIO_ACTIVE_HIGH>; /* PH25 */ + }; + wifi_pwrseq: wifi_pwrseq { compatible = "mmc-pwrseq-simple"; reset-gpios = <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 */ @@ -253,6 +307,19 @@ status = "okay"; }; +&tcon0 { + pinctrl-names = "default"; + pinctrl-0 = <&lcd0_rgb888_pins>; + status = "okay"; +}; + +&tcon0_out { + tcon0_out_vga: endpoint@0 { + reg = <0>; + remote-endpoint = <&vga_dac_in>; + }; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_pins_a>; -- 2.10.2
