[PATCH] atyfb: Improve power management

Some register were only set in aty_init() which is not called on resume.  I
added the aty_resume_chip() function to reset those registers on resume.

Susped-to-ram now works on a HP Omnibook 6000 with acpi_sleep=s3_bios.

Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/video/aty/atyfb.h b/drivers/video/aty/atyfb.h
index c9b35c6b0b69..f72faff33c0c 100644
--- a/drivers/video/aty/atyfb.h
+++ b/drivers/video/aty/atyfb.h
@@ -185,6 +185,7 @@ struct atyfb_par {
         int mtrr_aper;
         int mtrr_reg;
 #endif
+        u32 mem_cntl;
 };
 
     /*
@@ -314,6 +315,7 @@ struct aty_pll_ops {
         void (*set_pll)   (const struct fb_info * info, const union aty_pll * pll);
         void (*get_pll)   (const struct fb_info *info, union aty_pll * pll);
         int (*init_pll)   (const struct fb_info * info, union aty_pll * pll);
+        void (*resume_pll)(const struct fb_info *info, union aty_pll *pll);
 };
 
 extern const struct aty_pll_ops aty_pll_ati18818_1; /* ATI 18818 */