[PATCH] fsldma: print correct IRQ on mpc83xx
Peter Korsgaard
jacmet at sunsite.dk
Thu Jan 15 06:29:15 EST 2009
>>>>> "Timur" == Timur Tabi <timur at freescale.com> writes:
Timur> Peter Korsgaard wrote:
>> Documentation/powerpc/dts-bindings/fsl/dma.txt and
>> The NO_IRQ check in fsldma.c:fsl_dma_chan_probe()
>>
>> And it makes sense, there's no per-channel DMAC interrupts on mpc83xx.
Timur> But the device trees do have IRQs in the channels:
Timur> arch/powerpc/boot/dts/mpc836x_mds.dts:
Timur> So I don't see what bug you're trying to fix. If you're
Timur> saying that the interrupts should not be specific DMA
Timur> channels, then the proper fix is to have the DMA driver pick
Timur> up the interrupts from the DMA controller's node when
Timur> necessary. Hacking up a printk doesn't fix anything.
Ok, let me try again. SOME device trees indeed have an interrupt
property per channel, but the bindings
(Documentation/powerpc/dts-bindings/fsl/dma.txt) and the probe code in
fsldma.c doesn't require it.
The only minor issues we have is the cosmetic problem of the driver
printing NO_IRQ (E.G. this patch), and the driver calling
free_irq(NO_IRQ) (E.G. the other patch I sent today) in the release
path.
--
Bye, Peter Korsgaard
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