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path: root/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
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Diffstat (limited to 'drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c')
-rw-r--r--drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c126
1 files changed, 51 insertions, 75 deletions
diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
index cada8c621e0..74cb0eb4531 100644
--- a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
@@ -20,16 +20,13 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>
-#include <linux/backlight.h>
#include <linux/fb.h>
#include <linux/err.h>
#include <linux/slab.h>
+#include <linux/gpio.h>
#include <video/omapdss.h>
-
-struct sharp_data {
- struct backlight_device *bl;
-};
+#include <video/omap-panel-data.h>
static struct omap_video_timings sharp_ls_timings = {
.x_res = 480,
@@ -52,91 +49,67 @@ static struct omap_video_timings sharp_ls_timings = {
.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
};
-static int sharp_ls_bl_update_status(struct backlight_device *bl)
+static inline struct panel_sharp_ls037v7dw01_data
+*get_panel_data(const struct omap_dss_device *dssdev)
{
- 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);
+ return (struct panel_sharp_ls037v7dw01_data *) dssdev->data;
}
-static int sharp_ls_bl_get_brightness(struct backlight_device *bl)
-{
- if (bl->props.fb_blank == FB_BLANK_UNBLANK &&
- bl->props.power == FB_BLANK_UNBLANK)
- return bl->props.brightness;
-
- return 0;
-}
-
-static const struct backlight_ops sharp_ls_bl_ops = {
- .get_brightness = sharp_ls_bl_get_brightness,
- .update_status = sharp_ls_bl_update_status,
-};
-
-
-
static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
{
- struct backlight_properties props;
- struct backlight_device *bl;
- struct sharp_data *sd;
+ struct panel_sharp_ls037v7dw01_data *pd = get_panel_data(dssdev);
int r;
+ if (!pd)
+ return -EINVAL;
+
dssdev->panel.timings = sharp_ls_timings;
- sd = kzalloc(sizeof(*sd), GFP_KERNEL);
- if (!sd)
- return -ENOMEM;
+ if (gpio_is_valid(pd->mo_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->mo_gpio,
+ GPIOF_OUT_INIT_LOW, "lcd MO");
+ if (r)
+ return r;
+ }
- dev_set_drvdata(&dssdev->dev, sd);
+ if (gpio_is_valid(pd->lr_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->lr_gpio,
+ GPIOF_OUT_INIT_HIGH, "lcd LR");
+ if (r)
+ return r;
+ }
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = dssdev->max_backlight_level;
- props.type = BACKLIGHT_RAW;
+ if (gpio_is_valid(pd->ud_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->ud_gpio,
+ GPIOF_OUT_INIT_HIGH, "lcd UD");
+ if (r)
+ return r;
+ }
- bl = backlight_device_register("sharp-ls", &dssdev->dev, dssdev,
- &sharp_ls_bl_ops, &props);
- if (IS_ERR(bl)) {
- r = PTR_ERR(bl);
- kfree(sd);
- return r;
+ if (gpio_is_valid(pd->resb_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->resb_gpio,
+ GPIOF_OUT_INIT_LOW, "lcd RESB");
+ if (r)
+ return r;
}
- sd->bl = bl;
- bl->props.fb_blank = FB_BLANK_UNBLANK;
- bl->props.power = FB_BLANK_UNBLANK;
- bl->props.brightness = dssdev->max_backlight_level;
- r = sharp_ls_bl_update_status(bl);
- if (r < 0)
- dev_err(&dssdev->dev, "failed to set lcd brightness\n");
+ if (gpio_is_valid(pd->ini_gpio)) {
+ r = devm_gpio_request_one(&dssdev->dev, pd->ini_gpio,
+ GPIOF_OUT_INIT_LOW, "lcd INI");
+ if (r)
+ return r;
+ }
return 0;
}
static void __exit sharp_ls_panel_remove(struct omap_dss_device *dssdev)
{
- struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
- struct backlight_device *bl = sd->bl;
-
- bl->props.power = FB_BLANK_POWERDOWN;
- sharp_ls_bl_update_status(bl);
- backlight_device_unregister(bl);
-
- kfree(sd);
}
static int sharp_ls_power_on(struct omap_dss_device *dssdev)
{
+ struct panel_sharp_ls037v7dw01_data *pd = get_panel_data(dssdev);
int r = 0;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
@@ -152,26 +125,29 @@ static int sharp_ls_power_on(struct omap_dss_device *dssdev)
/* wait couple of vsyncs until enabling the LCD */
msleep(50);
- if (dssdev->platform_enable) {
- r = dssdev->platform_enable(dssdev);
- if (r)
- goto err1;
- }
+ if (gpio_is_valid(pd->resb_gpio))
+ gpio_set_value_cansleep(pd->resb_gpio, 1);
+
+ if (gpio_is_valid(pd->ini_gpio))
+ gpio_set_value_cansleep(pd->ini_gpio, 1);
return 0;
-err1:
- omapdss_dpi_display_disable(dssdev);
err0:
return r;
}
static void sharp_ls_power_off(struct omap_dss_device *dssdev)
{
+ struct panel_sharp_ls037v7dw01_data *pd = get_panel_data(dssdev);
+
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return;
- if (dssdev->platform_disable)
- dssdev->platform_disable(dssdev);
+ if (gpio_is_valid(pd->ini_gpio))
+ gpio_set_value_cansleep(pd->ini_gpio, 0);
+
+ if (gpio_is_valid(pd->resb_gpio))
+ gpio_set_value_cansleep(pd->resb_gpio, 0);
/* wait at least 5 vsyncs after disabling the LCD */