Messages in this thread | | | Date | Tue, 13 May 2008 18:01:07 +0100 | From | Alan Cox <> | Subject | Re: 2.6.26-rc1 regression: ISA DMA broken (bisected) |
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On Tue, 13 May 2008 10:59:32 -0600 Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
> On Friday 09 May 2008 12:06:55 am Takashi Iwai wrote: > > Thanks for catching it. Yeah, the patch looks buggy. We had an > > implicit assumption that dev = NULL for ISA devices that require 24bit > > DMA. > > Naive question #1: Why don't we have a struct device for these > ISA devices? PNP builds a struct device with DMA_24BIT_MASK > for ISAPNP devices.
Because nobody has done the needed work to get all the old ISA drivers converted. I guess isa_device would actually be a platform_device wrapper ?
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