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atmel_lcdfb: add board parameter specify framebuffer memory size

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Specify how much physically continuous, DMA capable memory will be
allocated at driver initialization time.  This allow to create framebuffer
device with larger virtual resolution.  Combine with y-panning this can be
used to implement double buffering acceleration method.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@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>
This commit is contained in:
Haavard Skinnemoen
2008-08-12 15:08:57 -07:00
committed by Linus Torvalds
parent e730d8b0a5
commit ea757acad5
2 changed files with 6 additions and 2 deletions
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1
include/video/atmel_lcdc.h
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@@ -41,6 +41,7 @@ struct atmel_lcdfb_info {
struct work_struct task;
unsigned int guard_time;
unsigned int smem_len;
struct platform_device *pdev;
struct clk *bus_clk;
struct clk *lcdc_clk;