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path: root/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
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Diffstat (limited to 'drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c')
-rw-r--r--drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c62
1 files changed, 52 insertions, 10 deletions
diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
index 2ba9d0ca187c..0eb31caddca8 100644
--- a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
+++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
@@ -163,50 +163,93 @@ static void nec_8048_panel_remove(struct omap_dss_device *dssdev)
kfree(necd);
}
-static int nec_8048_panel_enable(struct omap_dss_device *dssdev)
+static int nec_8048_panel_power_on(struct omap_dss_device *dssdev)
{
- int r = 0;
+ 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;
+
+ r = omapdss_dpi_display_enable(dssdev);
+ if (r)
+ goto err0;
+
if (dssdev->platform_enable) {
r = dssdev->platform_enable(dssdev);
if (r)
- return r;
+ goto err1;
}
r = nec_8048_bl_update_status(bl);
if (r < 0)
dev_err(&dssdev->dev, "failed to set lcd brightness\n");
- r = omapdss_dpi_display_enable(dssdev);
-
+ return 0;
+err1:
+ omapdss_dpi_display_disable(dssdev);
+err0:
return r;
}
-static void nec_8048_panel_disable(struct omap_dss_device *dssdev)
+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;
- omapdss_dpi_display_disable(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);
+
+ omapdss_dpi_display_disable(dssdev);
+}
+
+static int nec_8048_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ r = nec_8048_panel_power_on(dssdev);
+ if (r)
+ return r;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+}
+
+static void nec_8048_panel_disable(struct omap_dss_device *dssdev)
+{
+ nec_8048_panel_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
static int nec_8048_panel_suspend(struct omap_dss_device *dssdev)
{
- nec_8048_panel_disable(dssdev);
+ nec_8048_panel_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
return 0;
}
static int nec_8048_panel_resume(struct omap_dss_device *dssdev)
{
- return nec_8048_panel_enable(dssdev);
+ int r;
+
+ r = nec_8048_panel_power_on(dssdev);
+ if (r)
+ return r;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
}
static int nec_8048_recommended_bpp(struct omap_dss_device *dssdev)
@@ -303,7 +346,6 @@ static struct spi_driver nec_8048_spi_driver = {
.resume = nec_8048_spi_resume,
.driver = {
.name = "nec_8048_spi",
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
},
};