static int lcdfreq_lock_free(struct device *dev)
{
struct fb_info *fb = dev_get_drvdata(dev);
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
struct lcdfreq_info *lcdfreq = fbdev->data;
int ret;
if (atomic_read(&lcdfreq->usage))
ret = set_lcdfreq_div(dev, LEVEL_NORMAL);
else {
dev_err(dev, "lcd freq is already normal state\n");
return -EINVAL;
}
if (!ret) {
mutex_lock(&lcdfreq->lock);
atomic_dec(&lcdfreq->usage);
mutex_unlock(&lcdfreq->lock);
cancel_delayed_work(&lcdfreq->work);
}
return ret;
}
static int lcdfreq_lock(struct device *dev)
{
struct fb_info *fb = dev_get_drvdata(dev);
struct s3cfb_window *win = fb->par;
struct s3cfb_global *fbdev = get_fimd_global(win->id);
struct lcdfreq_info *lcdfreq = fbdev->data;
int ret;
if (!atomic_read(&lcdfreq->usage))
ret = set_lcdfreq_div(dev, LEVEL_LIMIT);
else {
dev_err(dev, "lcd freq is already limit state\n");
return -EINVAL;
}
if (!ret) {
mutex_lock(&lcdfreq->lock);
atomic_inc(&lcdfreq->usage);
mutex_unlock(&lcdfreq->lock);
schedule_delayed_work(&lcdfreq->work, 0);
}
return ret;
}
static int lcdfreq_lock_free(struct device *dev)
{
struct lcdfreq_info *info = dev_get_drvdata(dev);
int ret;
if (atomic_read(&info->usage))
ret = set_lcdfreq_div(dev, NORMAL);
else {
dev_err(dev, "lcd freq is already normal state\n");
return -EINVAL;
}
if (!ret) {
mutex_lock(&info->lock);
atomic_dec(&info->usage);
mutex_unlock(&info->lock);
cancel_delayed_work(&info->work);
}
return ret;
}
static int lcdfreq_lock(struct device *dev, int value)
{
struct lcdfreq_info *info = dev_get_drvdata(dev);
int ret;
if (!atomic_read(&info->usage))
ret = set_lcdfreq_div(dev, value);
else {
dev_err(dev, "lcd freq is already limit state\n");
return -EINVAL;
}
if (!ret) {
mutex_lock(&info->lock);
atomic_inc(&info->usage);
mutex_unlock(&info->lock);
schedule_delayed_work(&info->work, 0);
}
return ret;
}
