* more details.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
-#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
static int chipsfb_blank(int blank, struct fb_info *info)
{
#ifdef CONFIG_PMAC_BACKLIGHT
- // used to disable backlight only for blank > 1, but it seems
- // useful at blank = 1 too (saves battery, extends backlight life)
- set_backlight_enable(!blank);
+ mutex_lock(&pmac_backlight_mutex);
+
+ if (pmac_backlight) {
+ /* used to disable backlight only for blank > 1, but it seems
+ * useful at blank = 1 too (saves battery, extends backlight
+ * life)
+ */
+ down(&pmac_backlight->sem);
+ if (blank)
+ pmac_backlight->props->power = FB_BLANK_POWERDOWN;
+ else
+ pmac_backlight->props->power = FB_BLANK_UNBLANK;
+ pmac_backlight->props->update_status(pmac_backlight);
+ up(&pmac_backlight->sem);
+ }
+
+ mutex_unlock(&pmac_backlight_mutex);
#endif /* CONFIG_PMAC_BACKLIGHT */
return 1; /* get fb_blank to set the colormap to all black */
#ifdef CONFIG_PMAC_BACKLIGHT
/* turn on the backlight */
- set_backlight_enable(1);
+ mutex_lock(&pmac_backlight_mutex);
+ if (pmac_backlight) {
+ down(&pmac_backlight->sem);
+ pmac_backlight->props->power = FB_BLANK_UNBLANK;
+ pmac_backlight->props->update_status(pmac_backlight);
+ up(&pmac_backlight->sem);
+ }
+ mutex_unlock(&pmac_backlight_mutex);
#endif /* CONFIG_PMAC_BACKLIGHT */
#ifdef CONFIG_PPC