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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-08-12 15:08:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-12 16:07:29 -0700
commite730d8b0a5882b66c169e1bed09774d5d365e2e0 (patch)
treeba927bd464dadbd5de9a9f7088d6b042d37a0a98 /drivers/video/atmel_lcdfb.c
parent10546355323e4826d13e62f85ac6198385a817a9 (diff)
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atmel_lcdfb: set ypanstep to 1 and enable y-panning on AT91
Panning in the y-direction can be done by simply changing the DMA base address. This code is already in place, but FBIOPAN_DISPLAY will currently fail because ypanstep is 0. Set ypanstep to 1 to indicate that we do support y-panning and also set the necessary acceleration flags on AT91 (AVR32 already have them.) Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/atmel_lcdfb.c')
-rw-r--r--drivers/video/atmel_lcdfb.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index e7018a2f56af..16e47eb2ff5d 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -39,7 +39,9 @@
#endif
#if defined(CONFIG_ARCH_AT91)
-#define ATMEL_LCDFB_FBINFO_DEFAULT FBINFO_DEFAULT
+#define ATMEL_LCDFB_FBINFO_DEFAULT (FBINFO_DEFAULT \
+ | FBINFO_PARTIAL_PAN_OK \
+ | FBINFO_HWACCEL_YPAN)
static inline void atmel_lcdfb_update_dma2d(struct atmel_lcdfb_info *sinfo,
struct fb_var_screeninfo *var)
@@ -177,7 +179,7 @@ static struct fb_fix_screeninfo atmel_lcdfb_fix __initdata = {
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.xpanstep = 0,
- .ypanstep = 0,
+ .ypanstep = 1,
.ywrapstep = 0,
.accel = FB_ACCEL_NONE,
};