static int acx565akm_bl_get_intensity(struct backlight_device *dev)
{
struct acx565akm_device *md = dev_get_drvdata(&dev->dev);
dev_dbg(&dev->dev, "%s\n", __func__);
if (!md->has_bc && md->dssdev->set_backlight == NULL)
return -ENODEV;
if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
dev->props.power == FB_BLANK_UNBLANK) {
if (md->has_bc)
return acx565akm_get_actual_brightness(md);
else
return dev->props.brightness;
}
return 0;
}
static int acx565akm_bl_get_intensity(struct backlight_device *dev)
{
struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
dev_dbg(&dev->dev, "%s\n", __func__);
if (!ddata->has_bc)
return -ENODEV;
if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
dev->props.power == FB_BLANK_UNBLANK) {
if (ddata->has_bc)
return acx565akm_get_actual_brightness(ddata);
else
return dev->props.brightness;
}
return 0;
}
static int acx_panel_probe(struct omap_dss_device *dssdev)
{
int r;
struct acx565akm_device *md = &acx_dev;
struct backlight_device *bldev;
int max_brightness, brightness;
struct backlight_properties props;
dev_dbg(&dssdev->dev, "%s\n", __func__);
dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
OMAP_DSS_LCD_IHS;
/* FIXME AC bias ? */
dssdev->panel.timings = acx_panel_timings;
if (dssdev->platform_enable)
dssdev->platform_enable(dssdev);
/*
* After reset we have to wait 5 msec before the first
* command can be sent.
*/
msleep(5);
md->enabled = panel_enabled(md);
r = panel_detect(md);
if (r) {
dev_err(&dssdev->dev, "%s panel detect error\n", __func__);
if (!md->enabled && dssdev->platform_disable)
dssdev->platform_disable(dssdev);
return r;
}
mutex_lock(&acx_dev.mutex);
acx_dev.dssdev = dssdev;
mutex_unlock(&acx_dev.mutex);
if (!md->enabled) {
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
}
/*------- Backlight control --------*/
props.fb_blank = FB_BLANK_UNBLANK;
props.power = FB_BLANK_UNBLANK;
bldev = backlight_device_register("acx565akm", &md->spi->dev,
md, &acx565akm_bl_ops, &props);
md->bl_dev = bldev;
if (md->has_cabc) {
r = sysfs_create_group(&bldev->dev.kobj, &bldev_attr_group);
if (r) {
dev_err(&bldev->dev,
"%s failed to create sysfs files\n", __func__);
backlight_device_unregister(bldev);
return r;
}
md->cabc_mode = get_hw_cabc_mode(md);
}
if (md->has_bc)
max_brightness = 255;
else
max_brightness = dssdev->max_backlight_level;
if (md->has_bc)
brightness = acx565akm_get_actual_brightness(md);
else if (dssdev->get_backlight)
brightness = dssdev->get_backlight(dssdev);
else
brightness = 0;
bldev->props.max_brightness = max_brightness;
bldev->props.brightness = brightness;
acx565akm_bl_update_status(bldev);
return 0;
}
static int acx565akm_probe(struct spi_device *spi)
{
struct panel_drv_data *ddata;
struct omap_dss_device *dssdev;
struct backlight_device *bldev;
int max_brightness, brightness;
struct backlight_properties props;
int r;
dev_dbg(&spi->dev, "%s\n", __func__);
spi->mode = SPI_MODE_3;
ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL);
if (ddata == NULL)
return -ENOMEM;
dev_set_drvdata(&spi->dev, ddata);
ddata->spi = spi;
mutex_init(&ddata->mutex);
if (dev_get_platdata(&spi->dev)) {
r = acx565akm_probe_pdata(spi);
if (r)
return r;
} else if (spi->dev.of_node) {
r = acx565akm_probe_of(spi);
if (r)
return r;
} else {
dev_err(&spi->dev, "platform data missing!\n");
return -ENODEV;
}
if (gpio_is_valid(ddata->reset_gpio)) {
r = devm_gpio_request_one(&spi->dev, ddata->reset_gpio,
GPIOF_OUT_INIT_LOW, "lcd reset");
if (r)
goto err_gpio;
}
if (gpio_is_valid(ddata->reset_gpio))
gpio_set_value(ddata->reset_gpio, 1);
/*
* After reset we have to wait 5 msec before the first
* command can be sent.
*/
usleep_range(5000, 10000);
ddata->enabled = panel_enabled(ddata);
r = panel_detect(ddata);
if (!ddata->enabled && gpio_is_valid(ddata->reset_gpio))
gpio_set_value(ddata->reset_gpio, 0);
if (r) {
dev_err(&spi->dev, "%s panel detect error\n", __func__);
goto err_detect;
}
memset(&props, 0, sizeof(props));
props.fb_blank = FB_BLANK_UNBLANK;
props.power = FB_BLANK_UNBLANK;
props.type = BACKLIGHT_RAW;
bldev = backlight_device_register("acx565akm", &ddata->spi->dev,
ddata, &acx565akm_bl_ops, &props);
ddata->bl_dev = bldev;
if (ddata->has_cabc) {
r = sysfs_create_group(&bldev->dev.kobj, &bldev_attr_group);
if (r) {
dev_err(&bldev->dev,
"%s failed to create sysfs files\n", __func__);
goto err_sysfs;
}
ddata->cabc_mode = get_hw_cabc_mode(ddata);
}
max_brightness = 255;
if (ddata->has_bc)
brightness = acx565akm_get_actual_brightness(ddata);
else
brightness = 0;
bldev->props.max_brightness = max_brightness;
bldev->props.brightness = brightness;
acx565akm_bl_update_status(bldev);
ddata->videomode = acx565akm_panel_timings;
dssdev = &ddata->dssdev;
dssdev->dev = &spi->dev;
dssdev->driver = &acx565akm_ops;
dssdev->type = OMAP_DISPLAY_TYPE_SDI;
dssdev->owner = THIS_MODULE;
dssdev->panel.timings = ddata->videomode;
r = omapdss_register_display(dssdev);
if (r) {
dev_err(&spi->dev, "Failed to register panel\n");
goto err_reg;
}
return 0;
err_reg:
sysfs_remove_group(&bldev->dev.kobj, &bldev_attr_group);
err_sysfs:
backlight_device_unregister(bldev);
err_detect:
err_gpio:
omap_dss_put_device(ddata->in);
return r;
}
static int acx565akm_panel_init(struct omap_display *display)
{
struct omap_panel *panel = display->panel;
struct acx565akm_panel_data *panel_data = display->hw_config.panel_data;
struct acx565akm_device *md = (struct acx565akm_device*)panel->priv;
struct backlight_device *bldev;
int brightness;
int max_brightness;
int r;
dev_dbg(&md->spi->dev, "%s\n", __func__);
if (!panel_data) {
dev_err(&md->spi->dev, "no panel data\n");
return -ENODEV;
}
mutex_init(&md->mutex);
md->display = display;
if (display->hw_config.panel_enable != NULL)
display->hw_config.panel_enable(display);
/*
* After reset we have to wait 5 msec before the first
* command can be sent.
*/
msleep(5);
md->enabled = panel_enabled(md); //TianMa display not enabled if no code change
r = panel_detect(md);
if (r) { //TianMa display will come here if no code change
if (!md->enabled && display->hw_config.panel_disable != NULL) //panel_disable is a func, means that if it exists
display->hw_config.panel_disable(display); //TianMa display will be disable if no code change
mutex_unlock(&md->mutex);
return r;
}
if (!panel_data->bc_connected) {
md->has_bc = 0;
md->has_cabc = 0;
}
#if 0
acx565akm_set_mode(display, panel->timings.x_res, panel->timings.y_res,
panel->bpp);
#endif
if (!md->enabled)
display->hw_config.panel_disable(display);
bldev = backlight_device_register("acx565akm", &md->spi->dev,
md, &acx565akm_bl_ops);
md->bl_dev = bldev;
if (md->has_cabc) {
r = sysfs_create_group(&bldev->dev.kobj, &bldev_attr_group);
if (r) {
dev_err(&bldev->dev, "failed to create sysfs files\n");
backlight_device_unregister(bldev);
return r;
}
md->cabc_mode = get_hw_cabc_mode(md);
}
bldev->props.fb_blank = FB_BLANK_UNBLANK;
bldev->props.power = FB_BLANK_UNBLANK;
if (md->has_bc)
max_brightness = 255;
else
max_brightness = display->hw_config.max_backlight_level;
if (md->has_bc)
brightness = acx565akm_get_actual_brightness(md);
else if (display->hw_config.get_backlight != NULL)
brightness = display->hw_config.get_backlight(display);
else
brightness = 0;
bldev->props.max_brightness = max_brightness;
bldev->props.brightness = brightness;
acx565akm_bl_update_status(bldev);
return 0;
}