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path: root/drivers/video/backlight/hp680_bl.c
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Diffstat (limited to 'drivers/video/backlight/hp680_bl.c')
-rw-r--r--drivers/video/backlight/hp680_bl.c61
1 files changed, 28 insertions, 33 deletions
diff --git a/drivers/video/backlight/hp680_bl.c b/drivers/video/backlight/hp680_bl.c
index fbea2bd129c..8ea42b8d9bc 100644
--- a/drivers/video/backlight/hp680_bl.c
+++ b/drivers/video/backlight/hp680_bl.c
@@ -18,15 +18,15 @@
#include <linux/fb.h>
#include <linux/backlight.h>
-#include <asm/cpu/dac.h>
-#include <asm/hp6xx.h>
+#include <cpu/dac.h>
+#include <mach/hp6xx.h>
#include <asm/hd64461.h>
#define HP680_MAX_INTENSITY 255
#define HP680_DEFAULT_INTENSITY 10
static int hp680bl_suspended;
-static int current_intensity = 0;
+static int current_intensity;
static DEFINE_SPINLOCK(bl_lock);
static void hp680bl_send_intensity(struct backlight_device *bd)
@@ -64,29 +64,28 @@ static void hp680bl_send_intensity(struct backlight_device *bd)
}
-#ifdef CONFIG_PM
-static int hp680bl_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int hp680bl_suspend(struct device *dev)
{
- struct backlight_device *bd = platform_get_drvdata(pdev);
+ struct backlight_device *bd = dev_get_drvdata(dev);
hp680bl_suspended = 1;
hp680bl_send_intensity(bd);
return 0;
}
-static int hp680bl_resume(struct platform_device *pdev)
+static int hp680bl_resume(struct device *dev)
{
- struct backlight_device *bd = platform_get_drvdata(pdev);
+ struct backlight_device *bd = dev_get_drvdata(dev);
hp680bl_suspended = 0;
hp680bl_send_intensity(bd);
return 0;
}
-#else
-#define hp680bl_suspend NULL
-#define hp680bl_resume NULL
#endif
+static SIMPLE_DEV_PM_OPS(hp680bl_pm_ops, hp680bl_suspend, hp680bl_resume);
+
static int hp680bl_set_intensity(struct backlight_device *bd)
{
hp680bl_send_intensity(bd);
@@ -98,23 +97,26 @@ static int hp680bl_get_intensity(struct backlight_device *bd)
return current_intensity;
}
-static struct backlight_ops hp680bl_ops = {
+static const struct backlight_ops hp680bl_ops = {
.get_brightness = hp680bl_get_intensity,
.update_status = hp680bl_set_intensity,
};
-static int __init hp680bl_probe(struct platform_device *pdev)
+static int hp680bl_probe(struct platform_device *pdev)
{
+ struct backlight_properties props;
struct backlight_device *bd;
- bd = backlight_device_register ("hp680-bl", &pdev->dev, NULL,
- &hp680bl_ops);
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_RAW;
+ props.max_brightness = HP680_MAX_INTENSITY;
+ bd = devm_backlight_device_register(&pdev->dev, "hp680-bl", &pdev->dev,
+ NULL, &hp680bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
platform_set_drvdata(pdev, bd);
- bd->props.max_brightness = HP680_MAX_INTENSITY;
bd->props.brightness = HP680_DEFAULT_INTENSITY;
hp680bl_send_intensity(bd);
@@ -129,18 +131,15 @@ static int hp680bl_remove(struct platform_device *pdev)
bd->props.power = 0;
hp680bl_send_intensity(bd);
- backlight_device_unregister(bd);
-
return 0;
}
static struct platform_driver hp680bl_driver = {
.probe = hp680bl_probe,
.remove = hp680bl_remove,
- .suspend = hp680bl_suspend,
- .resume = hp680bl_resume,
.driver = {
.name = "hp680-bl",
+ .pm = &hp680bl_pm_ops,
},
};
@@ -151,25 +150,21 @@ static int __init hp680bl_init(void)
int ret;
ret = platform_driver_register(&hp680bl_driver);
- if (!ret) {
- hp680bl_device = platform_device_alloc("hp680-bl", -1);
- if (!hp680bl_device)
- return -ENOMEM;
-
- ret = platform_device_add(hp680bl_device);
-
- if (ret) {
- platform_device_put(hp680bl_device);
- platform_driver_unregister(&hp680bl_driver);
- }
+ if (ret)
+ return ret;
+ hp680bl_device = platform_device_register_simple("hp680-bl", -1,
+ NULL, 0);
+ if (IS_ERR(hp680bl_device)) {
+ platform_driver_unregister(&hp680bl_driver);
+ return PTR_ERR(hp680bl_device);
}
- return ret;
+ return 0;
}
static void __exit hp680bl_exit(void)
{
platform_device_unregister(hp680bl_device);
- platform_driver_unregister(&hp680bl_driver);
+ platform_driver_unregister(&hp680bl_driver);
}
module_init(hp680bl_init);