-#ifdef CONFIG_PMAC_PBOOK
-/*
- * Save the contents of the frame buffer when we go to sleep,
- * and restore it when we wake up again.
- */
-int
-chips_sleep_notify(struct pmu_sleep_notifier *self, int when)
-{
- struct fb_info *p = &chipsfb_info;
- int nb = p->var.yres * p->fix.line_length;
-
- if (p->screen_base == NULL)
- return PBOOK_SLEEP_OK;
-
- switch (when) {
- case PBOOK_SLEEP_REQUEST:
- save_framebuffer = vmalloc(nb);
- if (save_framebuffer == NULL)
- return PBOOK_SLEEP_REFUSE;
- break;
- case PBOOK_SLEEP_REJECT:
- if (save_framebuffer) {
- vfree(save_framebuffer);
- save_framebuffer = 0;
- }
- break;
- case PBOOK_SLEEP_NOW:
- chipsfb_blank(1, p);
- if (save_framebuffer)
- memcpy(save_framebuffer, p->screen_base, nb);
- break;
- case PBOOK_WAKE:
- if (save_framebuffer) {
- memcpy(p->screen_base, save_framebuffer, nb);
- vfree(save_framebuffer);
- save_framebuffer = 0;
- }
- chipsfb_blank(0, p);
- break;
- }
- return PBOOK_SLEEP_OK;
-}
-#endif /* CONFIG_PMAC_PBOOK */
-