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/*
* 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");
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