s3c-fb: automatically calculate pixel clock when none is given
authorMaurus Cuelenaere <mcuelenaere@gmail.com>
Wed, 11 Aug 2010 01:02:44 +0000 (18:02 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Aug 2010 15:59:12 +0000 (08:59 -0700)
commit2bb567a38950f0917aecfe1a3e46720d8bbb0020
tree58187f4c8263dd3efcae7b018066517caece374e
parent04ab9ef97771ba88789672a1f0d0ddcf8dbc0924
s3c-fb: automatically calculate pixel clock when none is given

Add a simple algorithm which calculates the pixel clock based on the video
mode parameters.  This is only done when no pixel clock is supplied
through the platform data.

This allows drivers to omit the pixel clock data and thus share the
algorithm used for calculating it.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Cc: Pawel Osciak <p.osciak@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: InKi Dae <inki.dae@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Tested-by: Donghwa Lee <yiffie9819@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/s3c-fb.c