• Benjamin Herrenschmidt's avatar
    [POWERPC] Fix various offb issues · 441cbd8d
    Benjamin Herrenschmidt authored
    This patch fixes a few issues in offb:
    
     - A test was inverted causing the palette hack to never work
    (no device node was passed down to the init function)
    
     - Some cards seem to have their assigned-addresses property in a random
    order, thus we need to try using of_get_pci_address() first, which will
    fail if it's not a PCI device, and fallback to of_get_address() in that
    case. of_get_pci_address() properly parsees assigned-addresses to test
    the BAR number and thus will get it right whatever the order is.
    
     - Some cards (like GXT4500) provide a linebytes of 0xffffffff in the
    device-tree which does no good. This patch handles that by using the
    screen width when that happens. (Also fixes btext.c while at it).
    
     - Add detection of the GXT4500 in addition to the GXT2000 for the
    palette hacks (we use the same hack, palette is linear in register space
    at offset 0x6000).
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
    441cbd8d
btext.c 37.6 KB