Hi,
I am trying to put the final pieces together to make the new PXA3xx
acceleration work. We now have an accelerator ID for the pxafb
framedriver (on its way to the upstream kernel tree):
(*) DirectFB/FBDev: Found 'PXA' (ID 99) with frame buffer at 0xa7c00000,
4096k (MMIO 0x00000000, 0k)
I have already changed driver_probe() in the pxa3xx gfxdriver to probe
for this ID. But unfortunately dfb_gfxcard_get_accelerator() won't
return the accelerator ID, but -1. This is due to the following code in
fbdev.c:
static int
system_get_accelerator( void )
{
[ snip: some code removed for clarity ]
if (dfb_config->accelerator)
return dfb_config->accelerator;
if (dfb_fbdev->shared->fix.mmio_len > 0)
return dfb_fbdev->shared->fix.accel;
return -1;
}
Is there a particular reason for this check? Would other drivers break
if I removed this line of code? How can I properly enable drivers that
don't use any MMIO ?
Sven
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