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3c76f15f LD |
1 | /* |
2 | * linux/drivers/video/mmp/panel/tpo_tj032md01bw.c | |
3 | * active panel using spi interface to do init | |
4 | * | |
5 | * Copyright (C) 2012 Marvell Technology Group Ltd. | |
6 | * Authors: Guoqing Li <ligq@marvell.com> | |
7 | * Lisa Du <cldu@marvell.com> | |
8 | * Zhou Zhu <zzhu3@marvell.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
16 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
18 | * more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License along with | |
21 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | * | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/kernel.h> | |
28 | #include <linux/errno.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/platform_device.h> | |
32 | #include <linux/err.h> | |
33 | #include <linux/spi/spi.h> | |
34 | #include <video/mmp_disp.h> | |
35 | ||
36 | static u16 init[] = { | |
37 | 0x0801, | |
38 | 0x0800, | |
39 | 0x0200, | |
40 | 0x0304, | |
41 | 0x040e, | |
42 | 0x0903, | |
43 | 0x0b18, | |
44 | 0x0c53, | |
45 | 0x0d01, | |
46 | 0x0ee0, | |
47 | 0x0f01, | |
48 | 0x1058, | |
49 | 0x201e, | |
50 | 0x210a, | |
51 | 0x220a, | |
52 | 0x231e, | |
53 | 0x2400, | |
54 | 0x2532, | |
55 | 0x2600, | |
56 | 0x27ac, | |
57 | 0x2904, | |
58 | 0x2aa2, | |
59 | 0x2b45, | |
60 | 0x2c45, | |
61 | 0x2d15, | |
62 | 0x2e5a, | |
63 | 0x2fff, | |
64 | 0x306b, | |
65 | 0x310d, | |
66 | 0x3248, | |
67 | 0x3382, | |
68 | 0x34bd, | |
69 | 0x35e7, | |
70 | 0x3618, | |
71 | 0x3794, | |
72 | 0x3801, | |
73 | 0x395d, | |
74 | 0x3aae, | |
75 | 0x3bff, | |
76 | 0x07c9, | |
77 | }; | |
78 | ||
79 | static u16 poweroff[] = { | |
80 | 0x07d9, | |
81 | }; | |
82 | ||
83 | struct tpohvga_plat_data { | |
84 | void (*plat_onoff)(int status); | |
85 | struct spi_device *spi; | |
86 | }; | |
87 | ||
88 | static void tpohvga_onoff(struct mmp_panel *panel, int status) | |
89 | { | |
90 | struct tpohvga_plat_data *plat = panel->plat_data; | |
91 | int ret; | |
92 | ||
93 | if (status) { | |
94 | plat->plat_onoff(1); | |
95 | ||
96 | ret = spi_write(plat->spi, init, sizeof(init)); | |
97 | if (ret < 0) | |
98 | dev_warn(panel->dev, "init cmd failed(%d)\n", ret); | |
99 | } else { | |
100 | ret = spi_write(plat->spi, poweroff, sizeof(poweroff)); | |
101 | if (ret < 0) | |
102 | dev_warn(panel->dev, "poweroff cmd failed(%d)\n", ret); | |
103 | ||
104 | plat->plat_onoff(0); | |
105 | } | |
106 | } | |
107 | ||
108 | static struct mmp_mode mmp_modes_tpohvga[] = { | |
109 | [0] = { | |
110 | .pixclock_freq = 10394400, | |
111 | .refresh = 60, | |
112 | .xres = 320, | |
113 | .yres = 480, | |
114 | .hsync_len = 10, | |
115 | .left_margin = 15, | |
116 | .right_margin = 10, | |
117 | .vsync_len = 2, | |
118 | .upper_margin = 4, | |
119 | .lower_margin = 2, | |
120 | .invert_pixclock = 1, | |
121 | .pix_fmt_out = PIXFMT_RGB565, | |
122 | }, | |
123 | }; | |
124 | ||
125 | static int tpohvga_get_modelist(struct mmp_panel *panel, | |
126 | struct mmp_mode **modelist) | |
127 | { | |
128 | *modelist = mmp_modes_tpohvga; | |
129 | return 1; | |
130 | } | |
131 | ||
132 | static struct mmp_panel panel_tpohvga = { | |
133 | .name = "tpohvga", | |
134 | .panel_type = PANELTYPE_ACTIVE, | |
135 | .get_modelist = tpohvga_get_modelist, | |
136 | .set_onoff = tpohvga_onoff, | |
137 | }; | |
138 | ||
139 | static int tpohvga_probe(struct spi_device *spi) | |
140 | { | |
141 | struct mmp_mach_panel_info *mi; | |
142 | int ret; | |
143 | struct tpohvga_plat_data *plat_data; | |
144 | ||
145 | /* get configs from platform data */ | |
146 | mi = spi->dev.platform_data; | |
147 | if (mi == NULL) { | |
148 | dev_err(&spi->dev, "%s: no platform data defined\n", __func__); | |
149 | return -EINVAL; | |
150 | } | |
151 | ||
152 | /* setup spi related info */ | |
153 | spi->bits_per_word = 16; | |
154 | ret = spi_setup(spi); | |
155 | if (ret < 0) { | |
156 | dev_err(&spi->dev, "spi setup failed %d", ret); | |
157 | return ret; | |
158 | } | |
159 | ||
160 | plat_data = kzalloc(sizeof(*plat_data), GFP_KERNEL); | |
161 | if (plat_data == NULL) | |
162 | return -ENOMEM; | |
163 | ||
164 | plat_data->spi = spi; | |
165 | plat_data->plat_onoff = mi->plat_set_onoff; | |
166 | panel_tpohvga.plat_data = plat_data; | |
167 | panel_tpohvga.plat_path_name = mi->plat_path_name; | |
168 | panel_tpohvga.dev = &spi->dev; | |
169 | ||
170 | mmp_register_panel(&panel_tpohvga); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | static struct spi_driver panel_tpohvga_driver = { | |
176 | .driver = { | |
177 | .name = "tpo-hvga", | |
178 | .owner = THIS_MODULE, | |
179 | }, | |
180 | .probe = tpohvga_probe, | |
181 | }; | |
182 | module_spi_driver(panel_tpohvga_driver); | |
183 | ||
184 | MODULE_AUTHOR("Lisa Du<cldu@marvell.com>"); | |
185 | MODULE_DESCRIPTION("Panel driver for tpohvga"); | |
186 | MODULE_LICENSE("GPL"); |