diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-07-12 02:31:18 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-01-11 21:27:15 +0100 |
| commit | 79a4f8aa49492807341adc1e91a82887ec37952a (patch) | |
| tree | 360b48a4293ebce2cb26ddc164af20e54fedb00c /arch | |
| parent | ad017768243a76cfedb4803e5690e1c3b1b0d15a (diff) | |
colibri_t30: enable display driver
On popular request enable the display driver on Colibri T30. A few
notes about some things encountered during porting: While analogue VGA
(e.g. via the on-carrier RAMDAC) worked just fine from the beginning
the EDT display flickered like crazy which turned out to be a pin
muxing issue. Unfortunately the PWM pin muxing wasn't any good neither
which made that display stay dark. Enjoy.
(cherry picked from commit 201cc6d4e4c8213fbd103e74b0f2f2ca591edf54)
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/tegra30-colibri.dts | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/dts/tegra30-colibri.dts b/arch/arm/dts/tegra30-colibri.dts index 3cff2f62e6..35ce865dca 100644 --- a/arch/arm/dts/tegra30-colibri.dts +++ b/arch/arm/dts/tegra30-colibri.dts @@ -27,6 +27,33 @@ reg = <0x80000000 0x40000000>; }; + host1x@50000000 { + dc@54200000 { + rgb { + status = "okay"; + nvidia,panel = <&lcd_panel>; + display-timings { + timing@0 { + /* VESA VGA */ + clock-frequency = <25175000>; + hactive = <640>; + vactive = <480>; + hback-porch = <48>; + hfront-porch = <16>; + hsync-len = <96>; + vback-porch = <31>; + vfront-porch = <11>; + vsync-len = <2>; + }; + }; + }; + }; + }; + + pwm@7000a000 { + status = "okay"; + }; + /* * GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier * board) @@ -93,6 +120,18 @@ nvidia,vbus-gpio = <&gpio TEGRA_GPIO(W, 2) GPIO_ACTIVE_LOW>; }; + backlight: backlight { + compatible = "pwm-backlight"; + + brightness-levels = <255 128 64 32 16 8 4 0>; + default-brightness-level = <6>; + /* BL_ON */ + enable-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; + power-supply = <®_3v3>; + /* PWM<A> */ + pwms = <&pwm 0 5000000>; + }; + clocks { compatible = "simple-bus"; #address-cells = <1>; @@ -105,4 +144,29 @@ clock-frequency = <32768>; }; }; + + lcd_panel: panel { + /* + * edt,et057090dhu: EDT 5.7" LCD TFT + * edt,et070080dh6: EDT 7.0" LCD TFT + */ + compatible = "edt,et057090dhu", "simple-panel"; + + backlight = <&backlight>; + }; + + regulators { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + reg_3v3: regulator@0 { + compatible = "regulator-fixed"; + reg = <0>; + regulator-name = "+V3.3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + }; }; |