aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/video/mmp/panel/tpo_tj032md01bw.c
blob: 998978b08f5e61fa798ddeacce65a572ef4109c0 (plain) (blame)
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
/*
 * linux/drivers/video/mmp/panel/tpo_tj032md01bw.c
 * active panel using spi interface to do init
 *
 * Copyright (C) 2012 Marvell Technology Group Ltd.
 * Authors:  Guoqing Li <ligq@marvell.com>
 *          Lisa Du <cldu@marvell.com>
 *          Zhou Zhu <zzhu3@marvell.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#include <linux/spi/spi.h>
#include <video/mmp_disp.h>

static u16 init[] = {
	0x0801,
	0x0800,
	0x0200,
	0x0304,
	0x040e,
	0x0903,
	0x0b18,
	0x0c53,
	0x0d01,
	0x0ee0,
	0x0f01,
	0x1058,
	0x201e,
	0x210a,
	0x220a,
	0x231e,
	0x2400,
	0x2532,
	0x2600,
	0x27ac,
	0x2904,
	0x2aa2,
	0x2b45,
	0x2c45,
	0x2d15,
	0x2e5a,
	0x2fff,
	0x306b,
	0x310d,
	0x3248,
	0x3382,
	0x34bd,
	0x35e7,
	0x3618,
	0x3794,
	0x3801,
	0x395d,
	0x3aae,
	0x3bff,
	0x07c9,
};

static u16 poweroff[] = {
	0x07d9,
};

struct tpohvga_plat_data {
	void (*plat_onoff)(int status);
	struct spi_device *spi;
};

static void tpohvga_onoff(struct mmp_panel *panel, int status)
{
	struct tpohvga_plat_data *plat = panel->plat_data;
	int ret;

	if (status) {
		plat->plat_onoff(1);

		ret = spi_write(plat->spi, init, sizeof(init));
		if (ret < 0)
			dev_warn(panel->dev, "init cmd failed(%d)\n", ret);
	} else {
		ret = spi_write(plat->spi, poweroff, sizeof(poweroff));
		if (ret < 0)
			dev_warn(panel->dev, "poweroff cmd failed(%d)\n", ret);

		plat->plat_onoff(0);
	}
}

static struct mmp_mode mmp_modes_tpohvga[] = {
	[0] = {
		.pixclock_freq = 10394400,
		.refresh = 60,
		.xres = 320,
		.yres = 480,
		.hsync_len = 10,
		.left_margin = 15,
		.right_margin = 10,
		.vsync_len = 2,
		.upper_margin = 4,
		.lower_margin = 2,
		.invert_pixclock = 1,
		.pix_fmt_out = PIXFMT_RGB565,
	},
};

static int tpohvga_get_modelist(struct mmp_panel *panel,
		struct mmp_mode **modelist)
{
	*modelist = mmp_modes_tpohvga;
	return 1;
}

static struct mmp_panel panel_tpohvga = {
	.name = "tpohvga",
	.panel_type = PANELTYPE_ACTIVE,
	.get_modelist = tpohvga_get_modelist,
	.set_onoff = tpohvga_onoff,
};

static int tpohvga_probe(struct spi_device *spi)
{
	struct mmp_mach_panel_info *mi;
	int ret;
	struct tpohvga_plat_data *plat_data;

	/* get configs from platform data */
	mi = spi->dev.platform_data;
	if (mi == NULL) {
		dev_err(&spi->dev, "%s: no platform data defined\n", __func__);
		return -EINVAL;
	}

	/* setup spi related info */
	spi->bits_per_word = 16;
	ret = spi_setup(spi);
	if (ret < 0) {
		dev_err(&spi->dev, "spi setup failed %d", ret);
		return ret;
	}

	plat_data = kzalloc(sizeof(*plat_data), GFP_KERNEL);
	if (plat_data == NULL)
		return -ENOMEM;

	plat_data->spi = spi;
	plat_data->plat_onoff = mi->plat_set_onoff;
	panel_tpohvga.plat_data = plat_data;
	panel_tpohvga.plat_path_name = mi->plat_path_name;
	panel_tpohvga.dev = &spi->dev;

	mmp_register_panel(&panel_tpohvga);

	return 0;
}

static struct spi_driver panel_tpohvga_driver = {
	.driver		= {
		.name	= "tpo-hvga",
		.owner	= THIS_MODULE,
	},
	.probe		= tpohvga_probe,
};
module_spi_driver(panel_tpohvga_driver);

MODULE_AUTHOR("Lisa Du<cldu@marvell.com>");
MODULE_DESCRIPTION("Panel driver for tpohvga");
MODULE_LICENSE("GPL");