2 * linux/drivers/video/mmp/panel/tpo_tj032md01bw.c
3 * active panel using spi interface to do init
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>
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.
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
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/>.
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>
79 static u16 poweroff[] = {
83 struct tpohvga_plat_data {
84 void (*plat_onoff)(int status);
85 struct spi_device *spi;
88 static void tpohvga_onoff(struct mmp_panel *panel, int status)
90 struct tpohvga_plat_data *plat = panel->plat_data;
96 ret = spi_write(plat->spi, init, sizeof(init));
98 dev_warn(panel->dev, "init cmd failed(%d)\n", ret);
100 ret = spi_write(plat->spi, poweroff, sizeof(poweroff));
102 dev_warn(panel->dev, "poweroff cmd failed(%d)\n", ret);
108 static struct mmp_mode mmp_modes_tpohvga[] = {
110 .pixclock_freq = 10394400,
120 .invert_pixclock = 1,
121 .pix_fmt_out = PIXFMT_RGB565,
125 static int tpohvga_get_modelist(struct mmp_panel *panel,
126 struct mmp_mode **modelist)
128 *modelist = mmp_modes_tpohvga;
132 static struct mmp_panel panel_tpohvga = {
134 .panel_type = PANELTYPE_ACTIVE,
135 .get_modelist = tpohvga_get_modelist,
136 .set_onoff = tpohvga_onoff,
139 static int tpohvga_probe(struct spi_device *spi)
141 struct mmp_mach_panel_info *mi;
143 struct tpohvga_plat_data *plat_data;
145 /* get configs from platform data */
146 mi = spi->dev.platform_data;
148 dev_err(&spi->dev, "%s: no platform data defined\n", __func__);
152 /* setup spi related info */
153 spi->bits_per_word = 16;
154 ret = spi_setup(spi);
156 dev_err(&spi->dev, "spi setup failed %d", ret);
160 plat_data = kzalloc(sizeof(*plat_data), GFP_KERNEL);
161 if (plat_data == NULL)
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;
170 mmp_register_panel(&panel_tpohvga);
175 static struct spi_driver panel_tpohvga_driver = {
179 .probe = tpohvga_probe,
181 module_spi_driver(panel_tpohvga_driver);
183 MODULE_AUTHOR("Lisa Du<cldu@marvell.com>");
184 MODULE_DESCRIPTION("Panel driver for tpohvga");
185 MODULE_LICENSE("GPL");