forked from openwrt/openwrt
/
950-0599-dtoverlays-Add-a-generic-DPI-panel-overlay-for-KMS.patch
158 lines (153 loc) · 4.97 KB
/
950-0599-dtoverlays-Add-a-generic-DPI-panel-overlay-for-KMS.patch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
From 208d270a7b613e5593390d38a9fba8bd248c5928 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 2 Dec 2021 18:06:37 +0000
Subject: [PATCH] dtoverlays: Add a generic DPI panel overlay for KMS
Uses the "panel-dpi" compatible to set panel timings from
DT.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 28 ++++++
.../overlays/vc4-kms-dpi-generic-overlay.dts | 92 +++++++++++++++++++
3 files changed, 121 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-generic-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -232,6 +232,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
vc4-fkms-v3d.dtbo \
vc4-fkms-v3d-pi4.dtbo \
vc4-kms-dpi-at056tn53v1.dtbo \
+ vc4-kms-dpi-generic.dtbo \
vc4-kms-dsi-7inch.dtbo \
vc4-kms-dsi-lt070me05000.dtbo \
vc4-kms-dsi-lt070me05000-v2.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -3563,6 +3563,34 @@ Load: dtoverlay=vc4-kms-dpi-at056tn53v
Params: <None>
+Name: vc4-kms-dpi-generic
+Info: Enable a generic DPI display under KMS. Default timings are for the
+ Adafruit Kippah with 800x480 panel and RGB666 (GPIOs 0-21)
+ Requires vc4-kms-v3d to be loaded.
+Load: dtoverlay=vc4-kms-dpi-generic,<param>=<val>
+Params: clock-frequency Display clock frequency (Hz)
+ hactive Horizontal active pixels
+ hfp Horizontal front porch
+ hsync Horizontal sync pulse width
+ hbp Horizontal back porch
+ vactive Vertical active lines
+ vfp Vertical front porch
+ vsync Vertical sync pulse width
+ vbp Vertical back porch
+ hsync-invert Horizontal sync active low
+ vsync-invert Vertical sync active low
+ de-invert Data Enable active low
+ pixclk-invert Negative edge pixel clock
+ width-mm Define the screen width in mm
+ height-mm Define the screen height in mm
+ rgb565 Change to RGB565 output on GPIOs 0-19
+ rgb666-padhi Change to RGB666 output on GPIOs 0-9, 12-17, and
+ 20-25
+ rgb888 Change to RGB888 output on GPIOs 0-27
+ bus-format Override the bus format for a MEDIA_BUS_FMT_*
+ value. NB also overridden by rgbXXX overrides.
+
+
Name: vc4-kms-dsi-7inch
Info: Enable the Raspberry Pi DSI 7" screen.
Includes the edt-ft5406 for the touchscreen element.
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-generic-overlay.dts
@@ -0,0 +1,92 @@
+/*
+ * vc4-kms-dpi-at056tn53v1-overlay.dts
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/bcm2835.h>
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target-path = "/";
+ __overlay__ {
+ panel: panel {
+ compatible = "panel-dpi";
+
+ width-mm = <154>;
+ height-mm = <83>;
+ bus-format = <0x1009>;
+
+ timing: panel-timing {
+ clock-frequency = <29500000>;
+ hactive = <800>;
+ hfront-porch = <24>;
+ hsync-len = <72>;
+ hback-porch = <96>;
+ hsync-active = <0>;
+ vactive = <480>;
+ vfront-porch = <3>;
+ vsync-len = <10>;
+ vback-porch = <7>;
+ vsync-active = <0>;
+
+ de-active = <1>;
+ pixelclk-active = <1>;
+ };
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&dpi_out>;
+ };
+ };
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&dpi>;
+ dpi_node: __overlay__ {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&dpi_18bit_gpio0>;
+
+ port {
+ dpi_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
+
+ __overrides__ {
+ clock-frequency = <&timing>, "clock-frequency:0";
+ hactive = <&timing>, "hactive:0";
+ hfp = <&timing>, "hfront-porch:0";
+ hsync = <&timing>, "hsync-len:0";
+ hbp = <&timing>, "hback-porch:0";
+ vactive = <&timing>, "vactive:0";
+ vfp = <&timing>, "vfront-porch:0";
+ vsync = <&timing>, "vsync-len:0";
+ vbp = <&timing>, "vback-porch:0";
+ hsync-invert = <&timing>, "hsync-active:0=0";
+ vsync-invert = <&timing>, "vsync-active:0=0";
+ de-invert = <&timing>, "de-active:0=0";
+ pixclk-invert = <&timing>, "pixelclk-active:0=0";
+
+ width-mm = <&panel>, "width-mm:0";
+ height-mm = <&panel>, "height-mm:0";
+
+ rgb565 = <&panel>, "bus-format:0=0x1017",
+ <&dpi_node>, "pinctrl-0:0=",<&dpi_16bit_gpio0>;
+ rgb666-padhi = <&panel>, "bus-format:0=0x1015",
+ <&dpi_node>, "pinctrl-0:0=",<&dpi_18bit_cpadhi_gpio0>;
+ rgb888 = <&panel>, "bus-format:0=0x100a",
+ <&dpi_node>, "pinctrl-0:0=",<&dpi_gpio0>;
+ bus-format = <&panel>, "bus-format:0";
+ };
+};