Re: [PATCH 2/2] dma: add Qualcomm Technologies HIDMA channel driver
From: Timur Tabi
Date: Fri Oct 30 2015 - 17:55:26 EST
On 10/30/2015 04:42 PM, Sinan Kaya wrote:
The dma mask has to always be set by the platform code before probe()
is called. If it is not set, you are not allowed to perform DMA.
I tested this on an ACPI platform BTW when I was working on the initial
PowerPC sets the mask to 32 bits by default:
Should we do something similar in ARM64? Today, we have to manually set
the DMA mask in all drivers.
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