22 Mar, 2011
1 commit
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This patch introduces lcdc->lcdcon_pol_negative which set CONTRAST_CTR
register to inverted polarity.Signed-off-by: Andreas Bießmann
Signed-off-by: Paul Mundt
13 Nov, 2008
1 commit
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Changed because old the definition of unsigned long cannot be negative.
Signed-off-by: Nicolas Ferre
Reported-by: Roel Kluin
Cc: Haavard Skinnemoen
Cc: Andrew Victor
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
19 Sep, 2008
1 commit
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Add the RGB555 wiring for the atmel LCD.
Acked-by: Nicolas Ferre
Acked-by: Haavard Skinnemoen
Signed-off-by: Guillaume GARDET
Signed-off-by: Russell King
13 Aug, 2008
1 commit
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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
Acked-by: Haavard Skinnemoen
Acked-by: Krzysztof Helt
Cc: Nicolas Ferre
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Jul, 2008
1 commit
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This patch fixes the following compile error caused by commit
d22579b837358cbef12ccca5adaf7e93ae09ab7a ("atmel_lcdfb: FIFO underflow
management"):In file included from arch/avr32/boards/atstk1000/atstk1004.c:21:
include/video/atmel_lcdc.h:40: error: field 'task' has incomplete typeSigned-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jul, 2008
1 commit
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Manage atmel_lcdfb FIFO underflow
Resetting the LCD and DMA allows to fix screen shifting after a FIFO
underflow. It follows reset sequence from errata "LCD Screen Shifting
After a Reset".Signed-off-by: Nicolas Ferre
Cc: Haavard Skinnemoen
Cc: Andrew Victor
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Apr, 2008
2 commits
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Adds different wiring mode for the LCD screen.
The legacy atmel LCDC IP uses a non standard color mode, "BGR-555.1" instead
"RGB-565". The major part of graphic stacks for embedded systems uses only
"RGB-565". It is possible to swap LCD IOs instead of doing this bit swapping
by software (See application note AT91SAM9 LCD Controller
http://www.atmel.com/dyn/resources/prod_documents/doc6300.pdf)This wire swapping is done on the at91sam9rl-ek board (board code
using this patch will come later).Signed-off-by: Nicolas Ferre
Cc: David Brownell
Cc: Hans-Christian Egtvedt
Cc: Haavard Skinnemoen
Cc: Andrew Victor
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Teach atmel_lcdfb driver how to suspend/resume.
Note that the backlight control should probably do more of the same stuff:
turning off display power (more than just the backlight) and stopping the
clocks (and dma to drive the no-longer-seen display). No point in wasting
power to generate images that can't be observed, after all...Signed-off-by: David Brownell
Signed-off-by: Nicolas Ferre
Cc: Hans-Christian Egtvedt
Cc: Haavard Skinnemoen
Cc: Andrew Victor
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Feb, 2008
2 commits
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On the sam9 EK boards, the LCD backlight is hooked up to a PWM output from
the LCD controller. It's controlled by "contrast" registers though.This patch lets boards declare that they have that kind of backlight
control. The driver can then export this control, letting screenblank and
other operations actually take effect ... reducing the typically
substantial power drain from the backlight.Note that it's not fully cooked
- doesn't force backlight off during system suspend
- the "power" and "blank" events may not be done right
This should be easily added in the future.[nicolas.ferre@atmel.com: remove unneeded inline and rename functions]
Signed-off-by: David Brownell
Signed-off-by: Nicolas Ferre
Cc: Andrew Victor
Cc: Russell King
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Setting a display timing parameter too high or too low may cause it to
wrap around and thus become completely wrong. Validate the timings in
atmel_lcdfb_check_var() and saturate to the highest or lowest possible
value if necessary.Signed-off-by: Haavard Skinnemoen
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 May, 2007
1 commit
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Adds a framebuffer driver to ATMEL AT91SAM9x and AT32 aka AVR32 platforms.
Those chips share quite the same IP and this code is suitable for both
architectures.Signed-off-by: Nicolas Ferre
Signed-off-by: Antonino Daplas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
