summaryrefslogtreecommitdiff
path: root/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c')
-rw-r--r--drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c135
1 files changed, 43 insertions, 92 deletions
diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
index c4e9c2b1b465..20c3cd91ff9b 100644
--- a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
+++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
@@ -19,10 +19,11 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/spi/spi.h>
-#include <linux/backlight.h>
#include <linux/fb.h>
+#include <linux/gpio.h>
#include <video/omapdss.h>
+#include <video/omap-panel-data.h>
#define LCD_XRES 800
#define LCD_YRES 480
@@ -32,10 +33,6 @@
*/
#define LCD_PIXEL_CLOCK 23800
-struct nec_8048_data {
- struct backlight_device *bl;
-};
-
static const struct {
unsigned char addr;
unsigned char dat;
@@ -84,93 +81,47 @@ static struct omap_video_timings nec_8048_panel_timings = {
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE,
};
-static int nec_8048_bl_update_status(struct backlight_device *bl)
-{
- struct omap_dss_device *dssdev = dev_get_drvdata(&bl->dev);
- int level;
-
- if (!dssdev->set_backlight)
- return -EINVAL;
-
- if (bl->props.fb_blank == FB_BLANK_UNBLANK &&
- bl->props.power == FB_BLANK_UNBLANK)
- level = bl->props.brightness;
- else
- level = 0;
-
- return dssdev->set_backlight(dssdev, level);
-}
-
-static int nec_8048_bl_get_brightness(struct backlight_device *bl)
+static inline struct panel_nec_nl8048_data
+*get_panel_data(const struct omap_dss_device *dssdev)
{
- if (bl->props.fb_blank == FB_BLANK_UNBLANK &&
- bl->props.power == FB_BLANK_UNBLANK)
- return bl->props.brightness;
-
- return 0;
+ return (struct panel_nec_nl8048_data *) dssdev->data;
}
-static const struct backlight_ops nec_8048_bl_ops = {
- .get_brightness = nec_8048_bl_get_brightness,
- .update_status = nec_8048_bl_update_status,
-};
-
static int nec_8048_panel_probe(struct omap_dss_device *dssdev)
{
- struct backlight_device *bl;
- struct nec_8048_data *necd;
- struct backlight_properties props;
+ struct panel_nec_nl8048_data *pd = get_panel_data(dssdev);
int r;
- dssdev->panel.timings = nec_8048_panel_timings;
-
- necd = kzalloc(sizeof(*necd), GFP_KERNEL);
- if (!necd)
- return -ENOMEM;
-
- dev_set_drvdata(&dssdev->dev, necd);
+ if (!pd)
+ return -EINVAL;
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = 255;
+ dssdev->panel.timings = nec_8048_panel_timings;
- bl = backlight_device_register("nec-8048", &dssdev->dev, dssdev,
- &nec_8048_bl_ops, &props);
- if (IS_ERR(bl)) {
- r = PTR_ERR(bl);
- kfree(necd);
- return r;
+ if (gpio_is_valid(pd->qvga_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->qvga_gpio,
+ GPIOF_OUT_INIT_HIGH, "lcd QVGA");
+ if (r)
+ return r;
}
- necd->bl = bl;
-
- bl->props.fb_blank = FB_BLANK_UNBLANK;
- bl->props.power = FB_BLANK_UNBLANK;
- bl->props.max_brightness = dssdev->max_backlight_level;
- bl->props.brightness = dssdev->max_backlight_level;
- r = nec_8048_bl_update_status(bl);
- if (r < 0)
- dev_err(&dssdev->dev, "failed to set lcd brightness\n");
+ if (gpio_is_valid(pd->res_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->res_gpio,
+ GPIOF_OUT_INIT_LOW, "lcd RES");
+ if (r)
+ return r;
+ }
return 0;
}
static void nec_8048_panel_remove(struct omap_dss_device *dssdev)
{
- struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev);
- struct backlight_device *bl = necd->bl;
-
- bl->props.power = FB_BLANK_POWERDOWN;
- nec_8048_bl_update_status(bl);
- backlight_device_unregister(bl);
-
- kfree(necd);
}
static int nec_8048_panel_power_on(struct omap_dss_device *dssdev)
{
+ struct panel_nec_nl8048_data *pd = get_panel_data(dssdev);
int r;
- struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev);
- struct backlight_device *bl = necd->bl;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
return 0;
@@ -182,36 +133,24 @@ static int nec_8048_panel_power_on(struct omap_dss_device *dssdev)
if (r)
goto err0;
- if (dssdev->platform_enable) {
- r = dssdev->platform_enable(dssdev);
- if (r)
- goto err1;
- }
-
- r = nec_8048_bl_update_status(bl);
- if (r < 0)
- dev_err(&dssdev->dev, "failed to set lcd brightness\n");
+ if (gpio_is_valid(pd->res_gpio))
+ gpio_set_value_cansleep(pd->res_gpio, 1);
return 0;
-err1:
- omapdss_dpi_display_disable(dssdev);
+
err0:
return r;
}
static void nec_8048_panel_power_off(struct omap_dss_device *dssdev)
{
- struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev);
- struct backlight_device *bl = necd->bl;
+ struct panel_nec_nl8048_data *pd = get_panel_data(dssdev);
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return;
- bl->props.brightness = 0;
- nec_8048_bl_update_status(bl);
-
- if (dssdev->platform_disable)
- dssdev->platform_disable(dssdev);
+ if (gpio_is_valid(pd->res_gpio))
+ gpio_set_value_cansleep(pd->res_gpio, 0);
omapdss_dpi_display_disable(dssdev);
}
@@ -303,16 +242,22 @@ static int nec_8048_spi_remove(struct spi_device *spi)
return 0;
}
-static int nec_8048_spi_suspend(struct spi_device *spi, pm_message_t mesg)
+#ifdef CONFIG_PM_SLEEP
+
+static int nec_8048_spi_suspend(struct device *dev)
{
+ struct spi_device *spi = to_spi_device(dev);
+
nec_8048_spi_send(spi, 2, 0x01);
mdelay(40);
return 0;
}
-static int nec_8048_spi_resume(struct spi_device *spi)
+static int nec_8048_spi_resume(struct device *dev)
{
+ struct spi_device *spi = to_spi_device(dev);
+
/* reinitialize the panel */
spi_setup(spi);
nec_8048_spi_send(spi, 2, 0x00);
@@ -321,14 +266,20 @@ static int nec_8048_spi_resume(struct spi_device *spi)
return 0;
}
+static SIMPLE_DEV_PM_OPS(nec_8048_spi_pm_ops, nec_8048_spi_suspend,
+ nec_8048_spi_resume);
+#define NEC_8048_SPI_PM_OPS (&nec_8048_spi_pm_ops)
+#else
+#define NEC_8048_SPI_PM_OPS NULL
+#endif
+
static struct spi_driver nec_8048_spi_driver = {
.probe = nec_8048_spi_probe,
.remove = nec_8048_spi_remove,
- .suspend = nec_8048_spi_suspend,
- .resume = nec_8048_spi_resume,
.driver = {
.name = "nec_8048_spi",
.owner = THIS_MODULE,
+ .pm = NEC_8048_SPI_PM_OPS,
},
};