diff options
Diffstat (limited to 'drivers/video/mmp/panel/tpo_tj032md01bw.c')
| -rw-r--r-- | drivers/video/mmp/panel/tpo_tj032md01bw.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/drivers/video/mmp/panel/tpo_tj032md01bw.c b/drivers/video/mmp/panel/tpo_tj032md01bw.c new file mode 100644 index 000000000000..998978b08f5e --- /dev/null +++ b/drivers/video/mmp/panel/tpo_tj032md01bw.c @@ -0,0 +1,186 @@ +/* + * 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"); |
