- 根目录:
- drivers
- video
- omap2
- displays
- panel-generic-dpi.c
/*
* Generic DPI Panels support
*
* Copyright (C) 2010 Canonical Ltd.
* Author: Bryan Wu <bryan.wu@canonical.com>
*
* LCD panel driver for Sharp LQ043T1DG01
*
* Copyright (C) 2009 Texas Instruments Inc
* Author: Vaibhav Hiremath <hvaibhav@ti.com>
*
* LCD panel driver for Toppoly TDO35S
*
* Copyright (C) 2009 CompuLab, Ltd.
* Author: Mike Rapoport <mike@compulab.co.il>
*
* Copyright (C) 2008 Nokia Corporation
* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* 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/delay.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
struct panel_config {
struct omap_video_timings timings;
int power_on_delay;
int power_off_delay;
/*
* Used to match device to panel configuration
* when use generic panel driver
*/
const char *name;
};
/* Panel configurations */
static struct panel_config generic_dpi_panels[] = {
/* Sharp LQ043T1DG01 */
{
{
.x_res = 480,
.y_res = 272,
.pixel_clock = 9000,
.hsw = 42,
.hfp = 3,
.hbp = 2,
.vsw = 11,
.vfp = 3,
.vbp = 2,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_LOW,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 50,
.power_off_delay = 100,
.name = "sharp_lq",
},
/* Sharp LS037V7DW01 */
{
{
.x_res = 480,
.y_res = 640,
.pixel_clock = 19200,
.hsw = 2,
.hfp = 1,
.hbp = 28,
.vsw = 1,
.vfp = 1,
.vbp = 1,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 50,
.power_off_delay = 100,
.name = "sharp_ls",
},
/* Toppoly TDO35S */
{
{
.x_res = 480,
.y_res = 640,
.pixel_clock = 26000,
.hfp = 104,
.hsw = 8,
.hbp = 8,
.vfp = 4,
.vsw = 2,
.vbp = 2,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
},
.power_on_delay = 0,
.power_off_delay = 0,
.name = "toppoly_tdo35s",
},
/* Samsung LTE430WQ-F0C */
{
{
.x_res = 480,
.y_res = 272,
.pixel_clock = 9200,
.hfp = 8,
.hsw = 41,
.hbp = 45 - 41,
.vfp = 4,
.vsw = 10,
.vbp = 12 - 10,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 0,
.power_off_delay = 0,
.name = "samsung_lte430wq_f0c",
},
/* Seiko 70WVW1TZ3Z3 */
{
{
.x_res = 800,
.y_res = 480,
.pixel_clock = 33000,
.hsw = 128,
.hfp = 10,
.hbp = 10,
.vsw = 2,
.vfp = 4,
.vbp = 11,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 0,
.power_off_delay = 0,
.name = "seiko_70wvw1tz3",
},
/* Powertip PH480272T */
{
{
.x_res = 480,
.y_res = 272,
.pixel_clock = 9000,
.hsw = 40,
.hfp = 2,
.hbp = 2,
.vsw = 10,
.vfp = 2,
.vbp = 2,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_LOW,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 0,
.power_off_delay = 0,
.name = "powertip_ph480272t",
},
/* Innolux AT070TN83 */
{
{
.x_res = 800,
.y_res = 480,
.pixel_clock = 40000,
.hsw = 48,
.hfp = 1,
.hbp = 1,
.vsw = 3,
.vfp = 12,
.vbp = 25,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 0,
.power_off_delay = 0,
.name = "innolux_at070tn83",
},
/* NEC NL2432DR22-11B */
{
{
.x_res = 240,
.y_res = 320,
.pixel_clock = 5400,
.hsw = 3,
.hfp = 3,
.hbp = 39,
.vsw = 1,
.vfp = 2,
.vbp = 7,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "nec_nl2432dr22-11b",
},
/* Unknown panel used in OMAP H4 */
{
{
.x_res = 240,
.y_res = 320,
.pixel_clock = 6250,
.hsw = 15,
.hfp = 15,
.hbp = 60,
.vsw = 1,
.vfp = 1,
.vbp = 1,
.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "h4",
},
/* FocalTech ETM070003DH6 */
{
{
.x_res = 800,
.y_res = 480,
.pixel_clock = 28000,
.hsw = 48,
.hfp = 40,
.hbp = 40,
.vsw = 3,
.vfp = 13,
.vbp = 29,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "focaltech_etm070003dh6",
},
/* Microtips Technologies - UMSH-8173MD */
{
{
.x_res = 800,
.y_res = 480,
.pixel_clock = 34560,
.hsw = 13,
.hfp = 101,
.hbp = 101,
.vsw = 23,
.vfp = 1,
.vbp = 1,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.power_on_delay = 0,
.power_off_delay = 0,
.name = "microtips_umsh_8173md",
},
/* OrtusTech COM43H4M10XTC */
{
{
.x_res = 480,
.y_res = 272,
.pixel_clock = 8000,
.hsw = 41,
.hfp = 8,
.hbp = 4,
.vsw = 10,
.vfp = 4,
.vbp = 2,
.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "ortustech_com43h4m10xtc",
},
/* Innolux AT080TN52 */
{
{
.x_res = 800,
.y_res = 600,
.pixel_clock = 41142,
.hsw = 20,
.hfp = 210,
.hbp = 46,
.vsw = 10,
.vfp = 12,
.vbp = 23,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_LOW,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "innolux_at080tn52",
},
/* Mitsubishi AA084SB01 */
{
{
.x_res = 800,
.y_res = 600,
.pixel_clock = 40000,
.hsw = 1,
.hfp = 254,
.hbp = 1,
.vsw = 1,
.vfp = 26,
.vbp = 1,
.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "mitsubishi_aa084sb01",
},
/* EDT ET0500G0DH6 */
{
{
.x_res = 800,
.y_res = 480,
.pixel_clock = 33260,
.hsw = 128,
.hfp = 216,
.hbp = 40,
.vsw = 2,
.vfp = 35,
.vbp = 10,
.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "edt_et0500g0dh6",
},
/* Prime-View PD050VL1 */
{
{
.x_res = 640,
.y_res = 480,
.pixel_clock = 25000,
.hsw = 96,
.hfp = 18,
.hbp = 46,
.vsw = 2,
.vfp = 10,
.vbp = 33,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "primeview_pd050vl1",
},
/* Prime-View PM070WL4 */
{
{
.x_res = 800,
.y_res = 480,
.pixel_clock = 32000,
.hsw = 128,
.hfp = 42,
.hbp = 86,
.vsw = 2,
.vfp = 10,
.vbp = 33,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "primeview_pm070wl4",
},
/* Prime-View PD104SLF */
{
{
.x_res = 800,
.y_res = 600,
.pixel_clock = 40000,
.hsw = 128,
.hfp = 42,
.hbp = 86,
.vsw = 4,
.vfp = 1,
.vbp = 23,
.vsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.hsync_level = OMAPDSS_SIG_ACTIVE_LOW,
.data_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE,
.de_level = OMAPDSS_SIG_ACTIVE_HIGH,
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
},
.name = "primeview_pd104slf",
},
};
struct panel_drv_data {
struct omap_dss_device *dssdev;
struct panel_config *panel_config;
struct mutex lock;
};
static inline struct panel_generic_dpi_data
*get_panel_data(const struct omap_dss_device *dssdev)
{
return (struct panel_generic_dpi_data *) dssdev->data;
}
static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev)
{
int r, i;
struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
struct panel_config *panel_config = drv_data->panel_config;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
return 0;
omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings);
omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines);
r = omapdss_dpi_display_enable(dssdev);
if (r)
goto err0;
/* wait couple of vsyncs until enabling the LCD */
if (panel_config->power_on_delay)
msleep(panel_config->power_on_delay);
for (i = 0; i < panel_data->num_gpios; ++i) {
gpio_set_value_cansleep(panel_data->gpios[i],
panel_data->gpio_invert[i] ? 0 : 1);
}
return 0;
err0:
return r;
}
static void generic_dpi_panel_power_off(struct omap_dss_device *dssdev)
{
struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
struct panel_config *panel_config = drv_data->panel_config;
int i;
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return;
for (i = panel_data->num_gpios - 1; i >= 0; --i) {
gpio_set_value_cansleep(panel_data->gpios[i],
panel_data->gpio_invert[i] ? 1 : 0);
}
/* wait couple of vsyncs after disabling the LCD */
if (panel_config->power_off_delay)
msleep(panel_config->power_off_delay);
omapdss_dpi_display_disable(dssdev);
}
static int generic_dpi_panel_probe(struct omap_dss_device *dssdev)
{
struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
struct panel_config *panel_config = NULL;
struct panel_drv_data *drv_data = NULL;
int i, r;
dev_dbg(&dssdev->dev, "probe\n");
if (!panel_data || !panel_data->name)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) {
if (strcmp(panel_data->name, generic_dpi_panels[i].name) == 0) {
panel_config = &generic_dpi_panels[i];
break;
}
}
if (!panel_config)
return -EINVAL;
for (i = 0; i < panel_data->num_gpios; ++i) {
r = devm_gpio_request_one(&dssdev->dev, panel_data->gpios[i],
panel_data->gpio_invert[i] ?
GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
"panel gpio");
if (r)
return r;
}
dssdev->panel.timings = panel_config->timings;
drv_data = devm_kzalloc(&dssdev->dev, sizeof(*drv_data), GFP_KERNEL);
if (!drv_data)
return -ENOMEM;
drv_data->dssdev = dssdev;
drv_data->panel_config = panel_config;
mutex_init(&drv_data->lock);
dev_set_drvdata(&dssdev->dev, drv_data);
return 0;
}
static void __exit generic_dpi_panel_remove(struct omap_dss_device *dssdev)
{
dev_dbg(&dssdev->dev, "remove\n");
dev_set_drvdata(&dssdev->dev, NULL);
}
static int generic_dpi_panel_enable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
int r;
mutex_lock(&drv_data->lock);
r = generic_dpi_panel_power_on(dssdev);
if (r)
goto err;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
err:
mutex_unlock(&drv_data->lock);
return r;
}
static void generic_dpi_panel_disable(struct omap_dss_device *dssdev)
{
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
mutex_lock(&drv_data->lock);
generic_dpi_panel_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
mutex_unlock(&drv_data->lock);
}
static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
mutex_lock(&drv_data->lock);
omapdss_dpi_set_timings(dssdev, timings);
dssdev->panel.timings = *timings;
mutex_unlock(&drv_data->lock);
}
static void generic_dpi_panel_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
mutex_lock(&drv_data->lock);
*timings = dssdev->panel.timings;
mutex_unlock(&drv_data->lock);
}
static int generic_dpi_panel_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
int r;
mutex_lock(&drv_data->lock);
r = dpi_check_timings(dssdev, timings);
mutex_unlock(&drv_data->lock);
return r;
}
static struct omap_dss_driver dpi_driver = {
.probe = generic_dpi_panel_probe,
.remove = __exit_p(generic_dpi_panel_remove),
.enable = generic_dpi_panel_enable,
.disable = generic_dpi_panel_disable,
.set_timings = generic_dpi_panel_set_timings,
.get_timings = generic_dpi_panel_get_timings,
.check_timings = generic_dpi_panel_check_timings,
.driver = {
.name = "generic_dpi_panel",
.owner = THIS_MODULE,
},
};
static int __init generic_dpi_panel_drv_init(void)
{
return omap_dss_register_driver(&dpi_driver);
}
static void __exit generic_dpi_panel_drv_exit(void)
{
omap_dss_unregister_driver(&dpi_driver);
}
module_init(generic_dpi_panel_drv_init);
module_exit(generic_dpi_panel_drv_exit);
MODULE_LICENSE("GPL");