[PATCH 1/4] add dts node for drm panel driver ili9341 add dts i2c3 for stmpe touch add dts spi5 for gyro & ili9341
dillon min
dillon.minfei at gmail.com
Thu Apr 30 10:26:20 UTC 2020
Hi Alexandre,
Alexandre Torgue <alexandre.torgue at st.com> 于2020年4月30日周四 下午5:57写道：
> Hi
>
> On 4/30/20 11:43 AM, dillon.minfei at gmail.com wrote:
> > From: dillon min <dillon.minfei at gmail.com>
> >
> > Signed-off-by: dillon min <dillon.minfei at gmail.com>
>
> Commit title should be ARM: dts: stm32: bla bla on stm32f429 and please
> a commit message.
>
>
*okay, thanks for your quicky response, this is my first kernel pull
request, i will resubmit all patchsets following the history submits style
who was did.*
> > ---
> > .../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
>
> This binding description should be in a separate patch and you have to
> write in YAML format.
>
> *okay, will do it later. *
>
> > 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 at 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 {
>
> 3p3 ?
*yes, the mfd stmpe driver need vcc & vio regulator, st sensor core driver
need vddio & vdd*
> + 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";
> > };
> > +
> > +<dc {
> > + status = "okay";
> > + pinctrl-0 = <<dc_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 at 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 = <®_3p3v>;
> > + vdd = <®_3p3v>;
> > + status = "okay";
> > + };
> > + display: display at 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 = <<dc_out_rgb>;
> > + };
> > + };
> > + };
> > +};
> > +
> > +&i2c3 {
>
> Nodes are have to be ordered
*sorry, a little confused, i2c-3 is used by stmpe811 driver*
>
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&i2c3_pins>;
> > + status = "okay";
> > +
> > + touch: stmpe811 at 41 {
> > + compatible = "st,stmpe811";
> > + reg = <0x41>;
> > + interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
> > + interrupt-parent = <&gpioa>;
> > + vio = <®_3p3v>;
> > + vcc = <®_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>;
> > + 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 @@
>
> Split Soc updates in a separate patch
*okay, will do it later*
> > status = "disabled";
> > };
> >
> > + i2c3: i2c at 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 at 40007400 {
> > compatible = "st,stm32f4-dac-core";
> > reg = <0x40007400 0x400>;
> >
>
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