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20ea6adbf1
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
159 lines
5.0 KiB
Diff
159 lines
5.0 KiB
Diff
From 208d270a7b613e5593390d38a9fba8bd248c5928 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Thu, 2 Dec 2021 18:06:37 +0000
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Subject: [PATCH] dtoverlays: Add a generic DPI panel overlay for KMS
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Uses the "panel-dpi" compatible to set panel timings from
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DT.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 28 ++++++
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.../overlays/vc4-kms-dpi-generic-overlay.dts | 92 +++++++++++++++++++
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3 files changed, 121 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-generic-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -232,6 +232,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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vc4-fkms-v3d.dtbo \
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vc4-fkms-v3d-pi4.dtbo \
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vc4-kms-dpi-at056tn53v1.dtbo \
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+ vc4-kms-dpi-generic.dtbo \
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vc4-kms-dsi-7inch.dtbo \
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vc4-kms-dsi-lt070me05000.dtbo \
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vc4-kms-dsi-lt070me05000-v2.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -3563,6 +3563,34 @@ Load: dtoverlay=vc4-kms-dpi-at056tn53v
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Params: <None>
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+Name: vc4-kms-dpi-generic
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+Info: Enable a generic DPI display under KMS. Default timings are for the
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+ Adafruit Kippah with 800x480 panel and RGB666 (GPIOs 0-21)
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+ Requires vc4-kms-v3d to be loaded.
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+Load: dtoverlay=vc4-kms-dpi-generic,<param>=<val>
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+Params: clock-frequency Display clock frequency (Hz)
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+ hactive Horizontal active pixels
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+ hfp Horizontal front porch
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+ hsync Horizontal sync pulse width
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+ hbp Horizontal back porch
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+ vactive Vertical active lines
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+ vfp Vertical front porch
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+ vsync Vertical sync pulse width
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+ vbp Vertical back porch
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+ hsync-invert Horizontal sync active low
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+ vsync-invert Vertical sync active low
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+ de-invert Data Enable active low
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+ pixclk-invert Negative edge pixel clock
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+ width-mm Define the screen width in mm
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+ height-mm Define the screen height in mm
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+ rgb565 Change to RGB565 output on GPIOs 0-19
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+ rgb666-padhi Change to RGB666 output on GPIOs 0-9, 12-17, and
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+ 20-25
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+ rgb888 Change to RGB888 output on GPIOs 0-27
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+ bus-format Override the bus format for a MEDIA_BUS_FMT_*
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+ value. NB also overridden by rgbXXX overrides.
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+
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+
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Name: vc4-kms-dsi-7inch
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Info: Enable the Raspberry Pi DSI 7" screen.
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Includes the edt-ft5406 for the touchscreen element.
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-generic-overlay.dts
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@@ -0,0 +1,92 @@
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+/*
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+ * vc4-kms-dpi-at056tn53v1-overlay.dts
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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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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+/ {
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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+ target-path = "/";
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+ __overlay__ {
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+ panel: panel {
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+ compatible = "panel-dpi";
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+
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+ width-mm = <154>;
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+ height-mm = <83>;
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+ bus-format = <0x1009>;
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+
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+ timing: panel-timing {
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+ clock-frequency = <29500000>;
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+ hactive = <800>;
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+ hfront-porch = <24>;
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+ hsync-len = <72>;
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+ hback-porch = <96>;
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+ hsync-active = <0>;
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+ vactive = <480>;
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+ vfront-porch = <3>;
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+ vsync-len = <10>;
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+ vback-porch = <7>;
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+ vsync-active = <0>;
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+
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+ de-active = <1>;
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+ pixelclk-active = <1>;
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+ };
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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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+
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+ fragment@1 {
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+ target = <&dpi>;
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+ dpi_node: __overlay__ {
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+ status = "okay";
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+
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&dpi_18bit_gpio0>;
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+
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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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+
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+ __overrides__ {
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+ clock-frequency = <&timing>, "clock-frequency:0";
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+ hactive = <&timing>, "hactive:0";
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+ hfp = <&timing>, "hfront-porch:0";
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+ hsync = <&timing>, "hsync-len:0";
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+ hbp = <&timing>, "hback-porch:0";
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+ vactive = <&timing>, "vactive:0";
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+ vfp = <&timing>, "vfront-porch:0";
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+ vsync = <&timing>, "vsync-len:0";
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+ vbp = <&timing>, "vback-porch:0";
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+ hsync-invert = <&timing>, "hsync-active:0=0";
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+ vsync-invert = <&timing>, "vsync-active:0=0";
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+ de-invert = <&timing>, "de-active:0=0";
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+ pixclk-invert = <&timing>, "pixelclk-active:0=0";
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+
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+ width-mm = <&panel>, "width-mm:0";
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+ height-mm = <&panel>, "height-mm:0";
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+
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+ rgb565 = <&panel>, "bus-format:0=0x1017",
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+ <&dpi_node>, "pinctrl-0:0=",<&dpi_16bit_gpio0>;
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+ rgb666-padhi = <&panel>, "bus-format:0=0x1015",
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+ <&dpi_node>, "pinctrl-0:0=",<&dpi_18bit_cpadhi_gpio0>;
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+ rgb888 = <&panel>, "bus-format:0=0x100a",
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+ <&dpi_node>, "pinctrl-0:0=",<&dpi_gpio0>;
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+ bus-format = <&panel>, "bus-format:0";
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+ };
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+};
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