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2e715fb4fc
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
177 lines
5.5 KiB
Diff
177 lines
5.5 KiB
Diff
From ccf75f2a6f4045484c4539f7d47264f8f6b8453c Mon Sep 17 00:00:00 2001
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From: Timon Skerutsch <kernel@diodes-delight.com>
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Date: Mon, 13 Nov 2023 22:52:35 +0100
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Subject: [PATCH] overlays: example overlay for using panel-dsi on RPi
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Analog to the generic panel-dpi overlay to use panel-dsi with dtparam
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to not require a panel specific overlay for simple use cases that
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do not require setting more niche DSI modes.
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Signed-off-by: Timon Skerutsch <kernel@diodes-delight.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 | 31 +++++
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.../overlays/vc4-kms-dsi-generic-overlay.dts | 106 ++++++++++++++++++
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3 files changed, 138 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-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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@@ -293,6 +293,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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vc4-kms-dpi-hyperpixel4sq.dtbo \
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vc4-kms-dpi-panel.dtbo \
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vc4-kms-dsi-7inch.dtbo \
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+ vc4-kms-dsi-generic.dtbo \
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vc4-kms-dsi-lt070me05000.dtbo \
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vc4-kms-dsi-lt070me05000-v2.dtbo \
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vc4-kms-dsi-waveshare-panel.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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@@ -4785,6 +4785,37 @@ Params: sizex Touchscr
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the default DSI1 and i2c_csi_dsi).
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+Name: vc4-kms-dsi-generic
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+Info: Enable a generic DSI display under KMS.
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+ Default timings are for a 840x480 RGB888 panel.
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+ Requires vc4-kms-v3d to be loaded.
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+Load: dtoverlay=vc4-kms-dsi-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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+ 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
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+ rgb666 Change to RGB666 output
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+ rgb666p Change to RGB666 output with pixel packing
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+ rgb888 Change to RGB888 output, this is the default
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+ one-lane Use one DSI lane for data transmission
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+ This is the default
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+ two-lane Use two DSI lanes for data transmission
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+ three-lane Use three DSI lanes for data transmission
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+ Only supported on Pi5 and CM
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+ four-lane Use four DSI lanes for data transmission
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+ Only supported on Pi5 and CM
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+ dsi0 Switch DSI port to DSI0
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+ Only supported on Pi5 and CM
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+
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+
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Name: vc4-kms-dsi-lt070me05000
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Info: Enable a JDI LT070ME05000 DSI display on DSI1.
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Note that this is a 4 lane DSI device, so it will only work on a Compute
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-generic-overlay.dts
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@@ -0,0 +1,106 @@
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2835";
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+
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+ dsi_frag: fragment@0 {
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+ target = <&dsi1>;
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+ __overlay__{
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+ status = "okay";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ port {
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+ dsi_out:endpoint {
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+ remote-endpoint = <&panel_dsi_port>;
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+ };
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+ };
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+ panel: panel-dsi-generic@0 {
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+ // See panel-dsi.yaml binding
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+ // Using dummy name for panel model
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+ compatible = "Generic,panel-dsi","panel-dsi";
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+ reg = <0>;
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+ power-supply = <0>;
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+ backlight = <0>;
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+ dsi-color-format = "RGB888";
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+ mode = "MODE_VIDEO";
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+ width-mm = <0>;
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+ height-mm = <0>;
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+
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+ port {
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+ panel_dsi_port: endpoint {
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+ data-lanes = <1>;
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+ remote-endpoint = <&dsi_out>;
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+ };
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+ };
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+
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+ timing: panel-timing {
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+ clock-frequency = <30000000>;
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+ hactive = <840>;
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+ vactive = <480>;
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+ hback-porch = <44>;
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+ hfront-porch = <46>;
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+ hsync-len = <2>;
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+ vback-porch = <18>;
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+ vfront-porch = <16>;
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+ vsync-len = <2>;
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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 = <&panel_dsi_port>;
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+ __dormant__ {
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+ data-lanes = <1>;
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&panel_dsi_port>;
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+ __dormant__ {
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+ data-lanes = <1 2>;
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&panel_dsi_port>;
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+ __dormant__ {
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+ data-lanes = <1 2 3>;
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&panel_dsi_port>;
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+ __dormant__ {
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+ data-lanes = <1 2 3 4>;
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+ };
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+ };
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+
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+ __overrides__ {
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+ dsi0 = <&dsi_frag>, "target:0=",<&dsi0>;
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+
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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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+
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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>, "dsi-color-format=RGB565";
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+ rgb666p = <&panel>, "dsi-color-format=RGB666_PACKED";
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+ rgb666 = <&panel>, "dsi-color-format=RGB666";
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+ rgb888 = <&panel>, "dsi-color-format=RGB888";
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+ one-lane = <0>,"+1";
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+ two-lane = <0>,"+2";
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+ three-lane = <0>,"+3";
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+ four-lane = <0>,"+4";
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+ };
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+
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+};
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