mirror of
https://github.com/lxsang/meta-rpi-diya.git
synced 2024-11-19 19:38:22 +01:00
101 lines
1.8 KiB
Plaintext
101 lines
1.8 KiB
Plaintext
/*
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* vc4-kms-waveshare-28dpi-overlay.dts
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*/
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/dts-v1/;
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/plugin/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/pinctrl/bcm2835.h>
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&gpio>;
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__overlay__ {
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pwm_pins: pwm_pins {
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brcm,pins = <18>;
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brcm,function = <BCM2835_FSEL_ALT5>;
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brcm,pull = <0>;
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};
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};
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};
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fragment@1 {
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target = <&pwm>;
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frag1: __overlay__ {
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pinctrl-names = "default";
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pinctrl-0 = <&pwm_pins>;
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assigned-clock-rates = <100000000>;
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status = "okay";
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};
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};
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fragment@2 {
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target-path = "/";
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__overlay__ {
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//#gpio-cells = <2>;
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/* Panel backlight through PWM0_0 on GPIO18 */
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backlight_lvds: backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm 0 10000000>;
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brightness-levels = <0 1000>;
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num-interpolated-steps = <1000>;
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default-brightness-level = <1000>;
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};
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panel: panel {
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reg = <0>;
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compatible = "panel-dpi";
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backlight = <&backlight_lvds>;
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width-mm = <154>;
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height-mm = <86>;
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bus-format = <0x1015>;
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timing: panel-timing {
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clock-frequency = <28000000>;
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hactive = <480>;
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hfront-porch = <26>;
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hsync-len = <16>;
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hback-porch = <10>;
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hsync-active = <0>;
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vactive = <640>;
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vfront-porch = <25>;
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vsync-len = <10>;
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vback-porch = <16>;
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vsync-active = <0>;
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de-active = <1>;
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pixelclk-active = <1>;
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};
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port {
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panel_in: endpoint {
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remote-endpoint = <&dpi_out>;
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};
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};
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};
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};
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};
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fragment@3 {
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target = <&dpi>;
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dpi_node: __overlay__ {
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status = "okay";
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pinctrl-names = "default";
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/* refer to /home/pi/linux/arch/arm/boot/dts/bcm270x.dtsi
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* for the pin multiplex setting
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*/
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pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
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port {
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dpi_out: endpoint {
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remote-endpoint = <&panel_in>;
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};
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};
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};
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};
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}; |