aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.19/950-0813-overlays-Add-sh1106-spi-and-ssd1351-spi-overlays-344.patch
blob: 4dc8e0943a9122458b7dc2b8350afe70262d6071 (plain)
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
From 1b8ea7066ee06404e0148702bc3e85a191f6d867 Mon Sep 17 00:00:00 2001
From: MikeDK <m.kaplan@evva.com>
Date: Fri, 31 Jan 2020 12:45:43 +0100
Subject: [PATCH] overlays: Add sh1106-spi and ssd1351-spi overlays
 (#3442)

Add overlays for SH1106 and SSD1351 based OLED displays.
SH1106 is present in many 1.3 inch OLEDs and SSD1351 is present in
1.5 inch RGB OLEDs from AliExpress.

This will load the staging fbtft drivers.

Signed-off-by: Michael Kaplan <m.kaplan@evva.com>
---
 arch/arm/boot/dts/overlays/Makefile           |  2 +
 arch/arm/boot/dts/overlays/README             | 23 ++++++
 .../boot/dts/overlays/sh1106-spi-overlay.dts  | 82 +++++++++++++++++++
 .../boot/dts/overlays/ssd1351-spi-overlay.dts | 81 ++++++++++++++++++
 4 files changed, 188 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -145,6 +145,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	sdhost.dtbo \
 	sdio.dtbo \
 	sdtweak.dtbo \
+	sh1106-spi.dtbo \
 	smi.dtbo \
 	smi-dev.dtbo \
 	smi-nand.dtbo \
@@ -169,6 +170,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	spi6-2cs.dtbo \
 	ssd1306.dtbo \
 	ssd1306-spi.dtbo \
+	ssd1351-spi.dtbo \
 	superaudioboard.dtbo \
 	sx150x.dtbo \
 	tc358743.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -2145,6 +2145,18 @@ Params: overclock_50            Clock (i
                                 (default on)
 
 
+Name:   sh1106-spi
+Info:   Overlay for SH1106 OLED via SPI using fbtft staging driver.
+Load:   dtoverlay=sh1106-spi,<param>=<val>
+Params: speed                   SPI bus speed (default 4000000)
+        rotate                  Display rotation (0, 90, 180 or 270; default 0)
+        fps                     Delay between frame updates (default 25)
+        debug                   Debug output level (0-7; default 0)
+        dc_pin                  GPIO pin for D/C (default 24)
+        reset_pin               GPIO pin for RESET (default 25)
+        height                  Display height (32 or 64; default 64)
+
+
 Name:   smi
 Info:   Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
 Load:   dtoverlay=smi
@@ -2440,6 +2452,17 @@ Params: speed                   SPI bus
         height                  Display height (32 or 64; default 64)
 
 
+Name:   ssd1351-spi
+Info:   Overlay for SSD1351 OLED via SPI using fbtft staging driver.
+Load:   dtoverlay=ssd1351-spi,<param>=<val>
+Params: speed                   SPI bus speed (default 4500000)
+        rotate                  Display rotation (0, 90, 180 or 270; default 0)
+        fps                     Delay between frame updates (default 25)
+        debug                   Debug output level (0-7; default 0)
+        dc_pin                  GPIO pin for D/C (default 24)
+        reset_pin               GPIO pin for RESET (default 25)
+
+
 Name:   superaudioboard
 Info:   Configures the SuperAudioBoard sound card
 Load:   dtoverlay=superaudioboard,<param>=<val>
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
@@ -0,0 +1,82 @@
+/*
+ * Device Tree overlay for SH1106 based SPI OLED display
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target = <&spi0>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target = <&spidev0>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@2 {
+		target = <&spidev1>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@3 {
+		target = <&gpio>;
+		__overlay__ {
+			sh1106_pins: sh1106_pins {
+                                brcm,pins = <25 24>;
+                                brcm,function = <1 1>; /* out out */
+			};
+		};
+	};
+
+	fragment@4 {
+		target = <&spi0>;
+		__overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			sh1106: sh1106@0{
+				compatible = "sinowealth,sh1106";
+				reg = <0>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&sh1106_pins>;
+
+				spi-max-frequency = <4000000>;
+				bgr = <0>;
+				bpp = <1>;
+				rotate = <0>;
+				fps = <25>;
+				buswidth = <8>;
+				reset-gpios = <&gpio 25 0>;
+				dc-gpios = <&gpio 24 0>;
+				debug = <0>;
+
+				sinowealth,height = <64>;
+				sinowealth,width = <128>;
+				sinowealth,page-offset = <0>;
+			};
+		};
+	};
+
+	__overrides__ {
+		speed		= <&sh1106>,"spi-max-frequency:0";
+		rotate		= <&sh1106>,"rotate:0";
+		fps		= <&sh1106>,"fps:0";
+		debug		= <&sh1106>,"debug:0";
+		dc_pin		= <&sh1106>,"dc-gpios:4>";
+		reset_pin	= <&sh1106>,"reset-gpios:4>";
+		height		= <&sh1106>,"sinowealth,height:0>";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts
@@ -0,0 +1,81 @@
+/*
+ * Device Tree overlay for SSD1351 based SPI OLED display
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target = <&spi0>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target = <&spidev0>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@2 {
+		target = <&spidev1>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@3 {
+		target = <&gpio>;
+		__overlay__ {
+			ssd1351_pins: ssd1351_pins {
+                                brcm,pins = <25 24>;
+                                brcm,function = <1 1>; /* out out */
+			};
+		};
+	};
+
+	fragment@4 {
+		target = <&spi0>;
+		__overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ssd1351: ssd1351@0{
+				compatible = "solomon,ssd1351";
+				reg = <0>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&ssd1351_pins>;
+
+				spi-max-frequency = <4500000>;
+				bgr = <0>;
+				bpp = <16>;
+				rotate = <0>;
+				fps = <25>;
+				buswidth = <8>;
+				reset-gpios = <&gpio 25 0>;
+				dc-gpios = <&gpio 24 0>;
+				debug = <0>;
+
+				solomon,height = <128>;
+				solomon,width = <128>;
+				solomon,page-offset = <0>;
+			};
+		};
+	};
+
+	__overrides__ {
+		speed		= <&ssd1351>,"spi-max-frequency:0";
+		rotate		= <&ssd1351>,"rotate:0";
+		fps		= <&ssd1351>,"fps:0";
+		debug		= <&ssd1351>,"debug:0";
+		dc_pin		= <&ssd1351>,"dc-gpios:4>";
+		reset_pin	= <&ssd1351>,"reset-gpios:4>";
+	};
+};