<div dir="auto"><div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">Philippe Schenker <<a href="mailto:philippe.schenker@toradex.com">philippe.schenker@toradex.com</a>> 于 2020年4月30日周四 20:08写道： </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Thu, 2020-04-30 at 17:43 +0800, <a href="mailto:dillon.minfei@gmail.com" target="_blank" rel="noreferrer">dillon.minfei@gmail.com</a> wrote: > From: dillon min <<a href="mailto:dillon.minfei@gmail.com" target="_blank" rel="noreferrer">dillon.minfei@gmail.com</a>> > > Signed-off-by: dillon min <<a href="mailto:dillon.minfei@gmail.com" target="_blank" rel="noreferrer">dillon.minfei@gmail.com</a>> > --- > .../bindings/display/panel/ilitek,ili9341.txt | 42 +++++++++++ > arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 79 > +++++++++++++++++++ > arch/arm/boot/dts/stm32f429-disco.dts | 88 > ++++++++++++++++++++++ > arch/arm/boot/dts/stm32f429.dtsi | 12 +++ > 4 files changed, 221 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/display/panel/ilitek,ili9341.txt > > diff --git > a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.txt > b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.txt > new file mode 100644 > index 0000000..f5a4e55 > --- /dev/null > +++ > b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.txt > @@ -0,0 +1,42 @@ > +Ilitek ILI9341 TFT panel driver with SPI control bus > + > +This is a driver for 240x320 TFT panels, accepting a rgb input > +streams that get adapted and scaled to the panel. > + > +Required properties: > + - compatible: "stm32f429-disco,ltdc-panel", "ilitek,ili9341" > + (full system-specific compatible is always required to look up > configuration) > + - reg: address of the panel on the SPI bus > + > +Optional properties: > + - reset-gpios: a GPIO spec for the reset pin, see gpio/gpio.txt > + - dc-gpios: a GPIO spec for the dc pin, see gpio/gpio.txt > + > + The following optional properties only apply to RGB input mode: > + > + - pixelclk-active: see display/panel/display-timing.txt > + - de-active: see display/panel/display-timing.txt > + - hsync-active: see display/panel/display-timing.txt > + - vsync-active: see display/panel/display-timing.txt > + > +The panel must obey the rules for a SPI slave device as specified in > +spi/spi-bus.txt > + > +The device node can contain one 'port' child node with one child > +'endpoint' node, according to the bindings defined in > +media/video-interfaces.txt. This node should describe panel's video > bus. > + > +Example: > + > +panel: display@0 { > + compatible = "stm32f429-disco,ltdc-panel", "ilitek,ili9341"; > + reg = <0>; > + spi-3wire; > + spi-max-frequency = <10000000>; > + dc-gpios = <&gpiod 13 0>; > + port { > + panel_in: endpoint { > + remote-endpoint = <&display_out>; > + }; > + }; > +}; > diff --git a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi > b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi > index 392fa14..45b68f4 100644 > --- a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi > +++ b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi > @@ -316,6 +316,85 @@ > }; > }; > > + ltdc_pins_f429_disco: ltdc-1 { > + pins { > + pinmux = <STM32_PINMUX('C', > 6, AF14)>, > + /* LCD_HSYNC */ > + <STM32_PINMUX('A', > 4, AF14)>, > + /* LCD_VSYNC */ > + <STM32_PINMUX('G', > 7, AF14)>, > + /* LCD_CLK */ > + <STM32_PINMUX('C', 10, > AF14)>, > + /* LCD_R2 */ > + <STM32_PINMUX('B', > 0, AF9)>, > + /* LCD_R3 */ > + <STM32_PINMUX('A', 11, > AF14)>, > + /* LCD_R4 */ > + <STM32_PINMUX('A', 12, > AF14)>, > + /* LCD_R5 */ > + <STM32_PINMUX('B', > 1, AF9)>, > + /* LCD_R6*/ > + <STM32_PINMUX('G', > 6, AF14)>, > + /* LCD_R7 */ > + <STM32_PINMUX('A', > 6, AF14)>, > + /* LCD_G2 */ > + <STM32_PINMUX('G', 10, > AF9)>, > + /* LCD_G3 */ > + <STM32_PINMUX('B', 10, > AF14)>, > + /* LCD_G4 */ > + <STM32_PINMUX('D', > 6, AF14)>, > + /* LCD_B2 */ > + <STM32_PINMUX('G', 11, > AF14)>, > + /* LCD_B3*/ > + <STM32_PINMUX('B', 11, > AF14)>, > + /* LCD_G5 */ > + <STM32_PINMUX('C', > 7, AF14)>, > + /* LCD_G6 */ > + <STM32_PINMUX('D', > 3, AF14)>, > + /* LCD_G7 */ > + <STM32_PINMUX('G', 12, > AF9)>, > + /* LCD_B4 */ > + <STM32_PINMUX('A', > 3, AF14)>, > + /* LCD_B5 */ > + <STM32_PINMUX('B', > 8, AF14)>, > + /* LCD_B6 */ > + <STM32_PINMUX('B', > 9, AF14)>, > + /* LCD_B7 */ > + <STM32_PINMUX('F', 10, > AF14)>; > + /* LCD_DE */ > + slew-rate = <2>; > + }; > + }; > + > + i2c3_pins: i2c3-0 { > + pins { > + pinmux = <STM32_PINMUX('C', 9, > AF4)>, > + /* I2C3_SDA */ > + <STM32_PINMUX('A', 8, > AF4)>; > + /* I2C3_SCL */ > + bias-disable; > + drive-open-drain; > + slew-rate = <3>; > + }; > + }; > + > + spi5_pins: spi5-0 { > + pins1 { > + pinmux = <STM32_PINMUX('F', 7, > AF5)>, > + /* SPI5_CLK */ > + <STM32_PINMUX('F', 9, > AF5)>; > + /* SPI5_MOSI */ > + bias-disable; > + drive-push-pull; > + slew-rate = <0>; > + }; > + pins2 { > + pinmux = <STM32_PINMUX('F', 8, > AF5)>; > + /* SPI5_MISO */ > + bias-disable; > + }; > + }; > + > dcmi_pins: dcmi-0 { > pins { > pinmux = <STM32_PINMUX('A', 4, > AF13)>, /* DCMI_HSYNC */ > diff --git a/arch/arm/boot/dts/stm32f429-disco.dts > b/arch/arm/boot/dts/stm32f429-disco.dts > index 30c0f67..55eed05 100644 > --- a/arch/arm/boot/dts/stm32f429-disco.dts > +++ b/arch/arm/boot/dts/stm32f429-disco.dts > @@ -49,6 +49,8 @@ > #include "stm32f429.dtsi" > #include "stm32f429-pinctrl.dtsi" > #include <dt-bindings/input/input.h> > +#include <dt-bindings/interrupt-controller/irq.h> > +#include <dt-bindings/gpio/gpio.h> > > / { > model = "STMicroelectronics STM32F429i-DISCO board"; > @@ -98,6 +100,14 @@ > regulator-name = "vcc5_host1"; > regulator-always-on; > }; > + > + reg_3p3v: regulator-3p3v { > + compatible = "regulator-fixed"; > + regulator-name = "3P3V"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > }; > > &clk_hse { > @@ -127,3 +137,81 @@ > pinctrl-names = "default"; > status = "okay"; > }; > + > +&ltdc { > + status = "okay"; > + pinctrl-0 = <&ltdc_pins_f429_disco>; > + pinctrl-names = "default"; > + > + port { > + ltdc_out_rgb: endpoint { > + remote-endpoint = <&panel_in_rgb>; > + }; > + }; > +}; > + > +&spi5 { > + status = "okay"; > + pinctrl-0 = <&spi5_pins>; > + pinctrl-names = "default"; > + #address-cells = <1>; > + #size-cells = <0>; > + cs-gpios = <&gpioc 1 GPIO_ACTIVE_LOW>,<&gpioc 2 > GPIO_ACTIVE_LOW>; > + dmas = <&dma2 3 2 0x400 0x0>, > + <&dma2 4 2 0x400 0x0>; > + dma-names = "rx", "tx"; > + l3gd20: l3gd20@0 { > + compatible = "st,l3gd20-gyro"; > + spi-max-frequency = <10000000>; > + st,drdy-int-pin = <2>; > + interrupt-parent = <&gpioa>; > + interrupts = <1 IRQ_TYPE_EDGE_RISING>, > + <2 IRQ_TYPE_EDGE_RISING>; > + reg = <0>; > + vddio = <&reg_3p3v>; > + vdd = <&reg_3p3v>; > + status = "okay"; > + }; > + display: display@1{ > + /* Connect panel-ilitek-9341 to ltdc */ > + compatible = "stm32f429-disco,ltdc-panel", > "ilitek,ili9341"; > + reg = <1>; > + spi-3wire; > + spi-max-frequency = <10000000>; > + dc-gpios = <&gpiod 13 0>; > + port { > + panel_in_rgb: endpoint { > + remote-endpoint = <&ltdc_out_rgb>; > + }; > + }; > + }; > +}; > + > +&i2c3 { > + pinctrl-names = "default"; > + pinctrl-0 = <&i2c3_pins>; > + status = "okay"; > + > + touch: stmpe811@41 { > + compatible = "st,stmpe811"; > + reg = <0x41>; > + interrupts = <15 IRQ_TYPE_EDGE_FALLING>; > + interrupt-parent = <&gpioa>; > + vio = <&reg_3p3v>; > + vcc = <&reg_3p3v>; > + status = "okay"; > + > + stmpe_touchscreen { > + compatible = "st,stmpe-ts"; > + st,sample-time = <4>; > + st,mod-12b = <1>; > + st,ref-sel = <0>; > + st,adc-freq = <1>; The above ADC related settings should go into the MFD device with compatible "st,stmpe811". The use of those in touchscreen is deprecated. Please check the bindings: Documentation/devicetree/bindings/input/touchs creen/stmpe.txt Documentation/devicetree/bindings/mfd/stmpe.txt Best Regards, Philippe Philippe,thanks. i will try it later, and move touch panel & gyro patchs out of this sets, after well tested, i'll resubmit it. </blockquote></div></div><div dir="auto"> </div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> > + st,ave-ctrl = <1>; > + st,touch-det-delay = <2>; > + st,settling = <2>; > + st,fraction-z = <7>; > + st,i-drive = <1>; > + }; > + }; > +}; > diff --git a/arch/arm/boot/dts/stm32f429.dtsi > b/arch/arm/boot/dts/stm32f429.dtsi > index d777069..257b843 100644 > --- a/arch/arm/boot/dts/stm32f429.dtsi > +++ b/arch/arm/boot/dts/stm32f429.dtsi > @@ -402,6 +402,18 @@ > status = "disabled"; > }; > > + i2c3: i2c@40005c00 { > + compatible = "st,stm32f4-i2c"; > + reg = <0x40005c00 0x400>; > + interrupts = <72>, > + <73>; > + resets = <&rcc STM32F4_APB1_RESET(I2C3)>; > + clocks = <&rcc 0 STM32F4_APB1_CLOCK(I2C3)>; > + #address-cells = <1>; > + #size-cells = <0>; > + status = "disabled"; > + }; > + > dac: dac@40007400 { > compatible = "st,stm32f4-dac-core"; > reg = <0x40007400 0x400>; </blockquote></div></div></div>