diff options
Diffstat (limited to 'drivers/video/backlight/lcd.c')
-rw-r--r-- | drivers/video/backlight/lcd.c | 67 |
1 files changed, 30 insertions, 37 deletions
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 430ba018a89..6ef8f0a7a13 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -31,11 +31,11 @@ static int fb_notifier_callback(struct notifier_block *self, return 0; ld = container_of(self, struct lcd_device, fb_notif); - mutex_lock(&ld->props_lock); - if (ld->props) - if (!ld->props->check_fb || ld->props->check_fb(evdata->info)) - ld->props->set_power(ld, *(int *)evdata->data); - mutex_unlock(&ld->props_lock); + mutex_lock(&ld->ops_lock); + if (ld->ops) + if (!ld->ops->check_fb || ld->ops->check_fb(evdata->info)) + ld->ops->set_power(ld, *(int *)evdata->data); + mutex_unlock(&ld->ops_lock); return 0; } @@ -66,12 +66,12 @@ static ssize_t lcd_show_power(struct class_device *cdev, char *buf) int rc; struct lcd_device *ld = to_lcd_device(cdev); - mutex_lock(&ld->props_lock); - if (ld->props && ld->props->get_power) - rc = sprintf(buf, "%d\n", ld->props->get_power(ld)); + mutex_lock(&ld->ops_lock); + if (ld->ops && ld->ops->get_power) + rc = sprintf(buf, "%d\n", ld->ops->get_power(ld)); else rc = -ENXIO; - mutex_unlock(&ld->props_lock); + mutex_unlock(&ld->ops_lock); return rc; } @@ -89,13 +89,13 @@ static ssize_t lcd_store_power(struct class_device *cdev, const char *buf, size_ if (size != count) return -EINVAL; - mutex_lock(&ld->props_lock); - if (ld->props && ld->props->set_power) { + mutex_lock(&ld->ops_lock); + if (ld->ops && ld->ops->set_power) { pr_debug("lcd: set power to %d\n", power); - ld->props->set_power(ld, power); + ld->ops->set_power(ld, power); rc = count; } - mutex_unlock(&ld->props_lock); + mutex_unlock(&ld->ops_lock); return rc; } @@ -105,10 +105,10 @@ static ssize_t lcd_show_contrast(struct class_device *cdev, char *buf) int rc = -ENXIO; struct lcd_device *ld = to_lcd_device(cdev); - mutex_lock(&ld->props_lock); - if (ld->props && ld->props->get_contrast) - rc = sprintf(buf, "%d\n", ld->props->get_contrast(ld)); - mutex_unlock(&ld->props_lock); + mutex_lock(&ld->ops_lock); + if (ld->ops && ld->ops->get_contrast) + rc = sprintf(buf, "%d\n", ld->ops->get_contrast(ld)); + mutex_unlock(&ld->ops_lock); return rc; } @@ -126,28 +126,22 @@ static ssize_t lcd_store_contrast(struct class_device *cdev, const char *buf, si if (size != count) return -EINVAL; - mutex_lock(&ld->props_lock); - if (ld->props && ld->props->set_contrast) { + mutex_lock(&ld->ops_lock); + if (ld->ops && ld->ops->set_contrast) { pr_debug("lcd: set contrast to %d\n", contrast); - ld->props->set_contrast(ld, contrast); + ld->ops->set_contrast(ld, contrast); rc = count; } - mutex_unlock(&ld->props_lock); + mutex_unlock(&ld->ops_lock); return rc; } static ssize_t lcd_show_max_contrast(struct class_device *cdev, char *buf) { - int rc = -ENXIO; struct lcd_device *ld = to_lcd_device(cdev); - mutex_lock(&ld->props_lock); - if (ld->props) - rc = sprintf(buf, "%d\n", ld->props->max_contrast); - mutex_unlock(&ld->props_lock); - - return rc; + return sprintf(buf, "%d\n", ld->props.max_contrast); } static void lcd_class_release(struct class_device *dev) @@ -180,27 +174,26 @@ static const struct class_device_attribute lcd_class_device_attributes[] = { * respective framebuffer device). * @devdata: an optional pointer to be stored in the class_device. The * methods may retrieve it by using class_get_devdata(ld->class_dev). - * @lp: the lcd properties structure. + * @ops: the lcd operations structure. * * Creates and registers a new lcd class_device. Returns either an ERR_PTR() * or a pointer to the newly allocated device. */ struct lcd_device *lcd_device_register(const char *name, void *devdata, - struct lcd_properties *lp) + struct lcd_ops *ops) { int i, rc; struct lcd_device *new_ld; pr_debug("lcd_device_register: name=%s\n", name); - new_ld = kmalloc(sizeof(struct lcd_device), GFP_KERNEL); + new_ld = kzalloc(sizeof(struct lcd_device), GFP_KERNEL); if (!new_ld) return ERR_PTR(-ENOMEM); - mutex_init(&new_ld->props_lock); + mutex_init(&new_ld->ops_lock); mutex_init(&new_ld->update_lock); - new_ld->props = lp; - memset(&new_ld->class_dev, 0, sizeof(new_ld->class_dev)); + new_ld->ops = ops; new_ld->class_dev.class = &lcd_class; strlcpy(new_ld->class_dev.class_id, name, KOBJ_NAME_LEN); class_set_devdata(&new_ld->class_dev, devdata); @@ -253,9 +246,9 @@ void lcd_device_unregister(struct lcd_device *ld) class_device_remove_file(&ld->class_dev, &lcd_class_device_attributes[i]); - mutex_lock(&ld->props_lock); - ld->props = NULL; - mutex_unlock(&ld->props_lock); + mutex_lock(&ld->ops_lock); + ld->ops = NULL; + mutex_unlock(&ld->ops_lock); lcd_unregister_fb(ld); class_device_unregister(&ld->class_dev); } |