Re: [PATCH] ARM: ux500: set coherent_dma_mask for dma40
From: Fabio Baltieri
Date: Tue Jun 18 2013 - 04:53:32 EST
On Mon, Jun 17, 2013 at 05:42:48PM +0200, Linus Walleij wrote:
> On Thu, Jun 13, 2013 at 3:56 PM, Fabio Baltieri
> <fabio.baltieri@xxxxxxxxxx> wrote:
> > Set coherent_dma_mask to DMA_BIT_MASK(32) for dma40 platform_device, as
> > without this DMA allocations were failing with the error:
> > dma40 dma40.0: coherent DMA mask is unset
> > when booting without device-tree.
> > Signed-off-by: Fabio Baltieri <fabio.baltieri@xxxxxxxxxx>
> > ---
> > Hi Linus, Lee,
> > I found this while removing the last hack I was keeping in my ASoC tree.
> > I originally thought that I had to set this on the driver's pdata, but
> > it turns out it's needed on the DMA controller one instead.
> > When booting with device-tree enabled the mask seems to be set
> > automatically.
> > Would you consider applying this with the other dma40 patches?
> Those are now upstream in the ARM SoC tree, you'd have to send it
> to arm@xxxxxxxxxx and ask Olof/Arnd to apply it directly to
> the next/drivers branch (I think).
Ok I can resend it but I'd like to have Lee's Ack before doing that.
Lee: have you had a chance to look at this patch?
> I have also queued it on ux500-fixes so it won't be lost.
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