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gerrit.nordix.org / codeaurora / cp-linux / 8d8f6542b666daf5e87de156590e635c2c4da0c0 / . / drivers / video / fbdev / amba-clcd-versatile.c
blob: 7a8afcd4573e5c1e595550f25985ea1181367157 [file] [log] [blame]
Kyle Swenson8d8f6542021-03-15 11:02:55 -0600[diff] [blame^]1#include <linux/device.h>
2#include <linux/dma-mapping.h>
3#include <linux/amba/bus.h>
4#include <linux/amba/clcd.h>
5#include <linux/platform_data/video-clcd-versatile.h>
6
7static struct clcd_panel vga = {
8 .mode = {
9 .name = "VGA",
10 .refresh = 60,
11 .xres = 640,
12 .yres = 480,
13 .pixclock = 39721,
14 .left_margin = 40,
15 .right_margin = 24,
16 .upper_margin = 32,
17 .lower_margin = 11,
18 .hsync_len = 96,
19 .vsync_len = 2,
20 .sync = 0,
21 .vmode = FB_VMODE_NONINTERLACED,
22 },
23 .width = -1,
24 .height = -1,
25 .tim2 = TIM2_BCD | TIM2_IPC,
26 .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
27 .caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
28 .bpp = 16,
29};
30
31static struct clcd_panel xvga = {
32 .mode = {
33 .name = "XVGA",
34 .refresh = 60,
35 .xres = 1024,
36 .yres = 768,
37 .pixclock = 15748,
38 .left_margin = 152,
39 .right_margin = 48,
40 .upper_margin = 23,
41 .lower_margin = 3,
42 .hsync_len = 104,
43 .vsync_len = 4,
44 .sync = 0,
45 .vmode = FB_VMODE_NONINTERLACED,
46 },
47 .width = -1,
48 .height = -1,
49 .tim2 = TIM2_BCD | TIM2_IPC,
50 .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
51 .caps = CLCD_CAP_5551 | CLCD_CAP_565 | CLCD_CAP_888,
52 .bpp = 16,
53};
54
55/* Sanyo TM38QV67A02A - 3.8 inch QVGA (320x240) Color TFT */
56static struct clcd_panel sanyo_tm38qv67a02a = {
57 .mode = {
58 .name = "Sanyo TM38QV67A02A",
59 .refresh = 116,
60 .xres = 320,
61 .yres = 240,
62 .pixclock = 100000,
63 .left_margin = 6,
64 .right_margin = 6,
65 .upper_margin = 5,
66 .lower_margin = 5,
67 .hsync_len = 6,
68 .vsync_len = 6,
69 .sync = 0,
70 .vmode = FB_VMODE_NONINTERLACED,
71 },
72 .width = -1,
73 .height = -1,
74 .tim2 = TIM2_BCD,
75 .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
76 .caps = CLCD_CAP_5551,
77 .bpp = 16,
78};
79
80static struct clcd_panel sanyo_2_5_in = {
81 .mode = {
82 .name = "Sanyo QVGA Portrait",
83 .refresh = 116,
84 .xres = 240,
85 .yres = 320,
86 .pixclock = 100000,
87 .left_margin = 20,
88 .right_margin = 10,
89 .upper_margin = 2,
90 .lower_margin = 2,
91 .hsync_len = 10,
92 .vsync_len = 2,
93 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
94 .vmode = FB_VMODE_NONINTERLACED,
95 },
96 .width = -1,
97 .height = -1,
98 .tim2 = TIM2_IVS | TIM2_IHS | TIM2_IPC,
99 .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
100 .caps = CLCD_CAP_5551,
101 .bpp = 16,
102};
103
104/* Epson L2F50113T00 - 2.2 inch 176x220 Color TFT */
105static struct clcd_panel epson_l2f50113t00 = {
106 .mode = {
107 .name = "Epson L2F50113T00",
108 .refresh = 390,
109 .xres = 176,
110 .yres = 220,
111 .pixclock = 62500,
112 .left_margin = 3,
113 .right_margin = 2,
114 .upper_margin = 1,
115 .lower_margin = 0,
116 .hsync_len = 3,
117 .vsync_len = 2,
118 .sync = 0,
119 .vmode = FB_VMODE_NONINTERLACED,
120 },
121 .width = -1,
122 .height = -1,
123 .tim2 = TIM2_BCD | TIM2_IPC,
124 .cntl = CNTL_LCDTFT | CNTL_BGR | CNTL_LCDVCOMP(1),
125 .caps = CLCD_CAP_5551,
126 .bpp = 16,
127};
128
129static struct clcd_panel *panels[] = {
130 &vga,
131 &xvga,
132 &sanyo_tm38qv67a02a,
133 &sanyo_2_5_in,
134 &epson_l2f50113t00,
135};
136
137struct clcd_panel *versatile_clcd_get_panel(const char *name)
138{
139 int i;
140
141 for (i = 0; i < ARRAY_SIZE(panels); i++)
142 if (strcmp(panels[i]->mode.name, name) == 0)
143 break;
144
145 if (i < ARRAY_SIZE(panels))
146 return panels[i];
147
148 pr_err("CLCD: couldn't get parameters for panel %s\n", name);
149
150 return NULL;
151}
152
153int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned long framesize)
154{
155 dma_addr_t dma;
156
157 fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
158 &dma, GFP_KERNEL);
159 if (!fb->fb.screen_base) {
160 pr_err("CLCD: unable to map framebuffer\n");
161 return -ENOMEM;
162 }
163
164 fb->fb.fix.smem_start = dma;
165 fb->fb.fix.smem_len = framesize;
166
167 return 0;
168}
169
170int versatile_clcd_mmap_dma(struct clcd_fb *fb, struct vm_area_struct *vma)
171{
172 return dma_mmap_writecombine(&fb->dev->dev, vma,
173 fb->fb.screen_base,
174 fb->fb.fix.smem_start,
175 fb->fb.fix.smem_len);
176}
177
178void versatile_clcd_remove_dma(struct clcd_fb *fb)
179{
180 dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
181 fb->fb.screen_base, fb->fb.fix.smem_start);
182}