On Tue, Mar 8, 2016 at 8:59 AM, Timur Tabi wrote:
>> + /* Try setting the coherent_dma_mask to 64 bits, then try 32 bits
>> */
>> + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
>> + if (ret) {
>> + ret = dma_set_mask_and_coherent(&pdev->dev,
>> DMA
From: Felipe Balbi
> Sent: 08 March 2016 13:48
...
> wonder if we should provide a generic static inline for that. Seems like
> that will replicate on many drivers. How about:
>
> static inline int dma_try_mask_and_coherent(struct device *dev)
> {
> int ret;
>
> ret = dma_set_mask
Mathias Nyman wrote:
Evolution of the patch can be found in this thread:
http://www.spinics.net/lists/linux-usb/msg128495.html
I think version 8 was the final one.
I couldn't find any answers to my questions in that thread. The key
change to the patch was made between v1 and v2:
+
Hi,
Mathias Nyman writes:
> [ text/plain ]
> On 04.03.2016 20:30, Timur Tabi wrote:
>> On Fri, Oct 9, 2015 at 5:30 AM, Mathias Nyman
>> wrote:
>>> The xhci platform driver needs to work on systems that
>>> either only support 64-bit DMA or only support 32-bit DMA.
>>> Attempt to set a coherent
On 04.03.2016 20:30, Timur Tabi wrote:
On Fri, Oct 9, 2015 at 5:30 AM, Mathias Nyman
wrote:
The xhci platform driver needs to work on systems that
either only support 64-bit DMA or only support 32-bit DMA.
Attempt to set a coherent dma mask for 64-bit DMA, and
attempt again with 32-bit DMA if t
On Fri, Oct 9, 2015 at 5:30 AM, Mathias Nyman
wrote:
> The xhci platform driver needs to work on systems that
> either only support 64-bit DMA or only support 32-bit DMA.
> Attempt to set a coherent dma mask for 64-bit DMA, and
> attempt again with 32-bit DMA if that fails.
I know this patch is a
