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path: root/drivers/video/gxt4500.c
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2006-12-22[PATCH] gxt4500: Fix colormap and PLL setting, support GXT6000PPaul Mackerras
This fixes some bugs in the gxt4500 framebuffer driver, and adds support for GXT6000P cards. First, I had the red and blue channels swapped in the colormap update code, resulting in penguins' noses and feet turning blue (though the penguins weren't actually shivering :). Secondly, the code that calculated the values to put in the PLL that generates the pixel clock wasn't observing some constraints that I wasn't originally aware of, but am now that I have some documentation on the chip. The GXT6000P is essentially identical from software's point of view, except for a different reference clock for the PLL, and the addition of a geometry engine (which this driver doesn't use). Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] Fbdev driver for IBM GXT4500P videocardsPaul Mackerras
This is an fbdev driver for the IBM GXT4500P display card found in some IBM System P (pSeries) machines. These cards have hardware 2D and 3D capabilities, but the driver does not use them; it just exports a dumb framebuffer. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>