Enable the display controller , panel & backlight. Set panel display timings & set the RGB data bus.
Signed-off-by: yannick fertre yannick.fertre@st.com --- arch/arm/dts/stm32f746-disco.dts | 70 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+)
diff --git a/arch/arm/dts/stm32f746-disco.dts b/arch/arm/dts/stm32f746-disco.dts index 9e8d2a0..bbde947 100644 --- a/arch/arm/dts/stm32f746-disco.dts +++ b/arch/arm/dts/stm32f746-disco.dts @@ -89,6 +89,37 @@ compatible = "st,button1"; button-gpio = <&gpioi 11 0>; }; + + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpiok 3 0>; + status = "okay"; + }; + + panel: panel { + compatible = "simple-panel"; + backlight = <&backlight>; + enable-gpios = <&gpioi 12 0>; + status = "okay"; + + display-timings { + timing@0 { + clock-frequency = <9000000>; + hactive = <480>; + vactive = <272>; + hfront-porch = <2>; + hback-porch = <2>; + hsync-len = <41>; + vfront-porch = <2>; + vback-porch = <2>; + vsync-len = <10>; + hsync-active = <0>; + vsync-active = <0>; + de-active = <0>; + pixelclk-active = <1>; + }; + }; + }; };
&clk_hse { @@ -183,6 +214,40 @@ slew-rate = <2>; }; }; + + ltdc_pins: ltdc@0 { + pins { + pinmux = <STM32F746_PE4_FUNC_LCD_B0>, + <STM32F746_PG12_FUNC_LCD_B4>, + <STM32F746_PI9_FUNC_LCD_VSYNC>, + <STM32F746_PI10_FUNC_LCD_HSYNC>, + <STM32F746_PI14_FUNC_LCD_CLK>, + <STM32F746_PI15_FUNC_LCD_R0>, + <STM32F746_PJ0_FUNC_LCD_R1>, + <STM32F746_PJ1_FUNC_LCD_R2>, + <STM32F746_PJ2_FUNC_LCD_R3>, + <STM32F746_PJ3_FUNC_LCD_R4>, + <STM32F746_PJ4_FUNC_LCD_R5>, + <STM32F746_PJ5_FUNC_LCD_R6>, + <STM32F746_PJ6_FUNC_LCD_R7>, + <STM32F746_PJ7_FUNC_LCD_G0>, + <STM32F746_PJ8_FUNC_LCD_G1>, + <STM32F746_PJ9_FUNC_LCD_G2>, + <STM32F746_PJ10_FUNC_LCD_G3>, + <STM32F746_PJ11_FUNC_LCD_G4>, + <STM32F746_PJ13_FUNC_LCD_B1>, + <STM32F746_PJ14_FUNC_LCD_B2>, + <STM32F746_PJ15_FUNC_LCD_B3>, + <STM32F746_PK0_FUNC_LCD_G5>, + <STM32F746_PK1_FUNC_LCD_G6>, + <STM32F746_PK2_FUNC_LCD_G7>, + <STM32F746_PK4_FUNC_LCD_B5>, + <STM32F746_PK5_FUNC_LCD_B6>, + <STM32F746_PK6_FUNC_LCD_B7>, + <STM32F746_PK7_FUNC_LCD_DE>; + slew-rate = <2>; + }; + }; };
&usart1 { @@ -250,3 +315,8 @@ bus-width = <4>; max-frequency = <25000000>; }; + +<dc { + status = "okay"; + pinctrl-0 = <<dc_pins>; +};