Vinod Koul writes:
> On Mon, Jun 06, 2016 at 11:10:38PM -0700, Eric Anholt wrote:
>> >> >> - if (ret == DMA_COMPLETE || !txstate)
>> >> >> + if (ret == DMA_COMPLETE)
>> >> >
>> >> > Why do you change this? txstate can be NULL, so no point calculating
>> >> > reside
>> >> > for those ca
On Mon, Jun 06, 2016 at 11:10:38PM -0700, Eric Anholt wrote:
> >> >> - if (ret == DMA_COMPLETE || !txstate)
> >> >> + if (ret == DMA_COMPLETE)
> >> >
> >> > Why do you change this? txstate can be NULL, so no point calculating
> >> > reside
> >> > for those cases
> >>
> >> The point wa
Vinod Koul writes:
> On Mon, Jun 06, 2016 at 10:33:18AM -0700, Eric Anholt wrote:
>> Vinod Koul writes:
>>
>> > On Fri, Jun 03, 2016 at 07:29:11PM -0700, Eric Anholt wrote:
>> >> The tx_status hook is supposed to be safe to call from interrupt
>> >> context, but it wouldn't ever return completi
On Mon, Jun 06, 2016 at 10:33:18AM -0700, Eric Anholt wrote:
> Vinod Koul writes:
>
> > On Fri, Jun 03, 2016 at 07:29:11PM -0700, Eric Anholt wrote:
> >> The tx_status hook is supposed to be safe to call from interrupt
> >> context, but it wouldn't ever return completion for the last transfer,
>
Vinod Koul writes:
> On Fri, Jun 03, 2016 at 07:29:11PM -0700, Eric Anholt wrote:
>> The tx_status hook is supposed to be safe to call from interrupt
>> context, but it wouldn't ever return completion for the last transfer,
>> meaning you couldn't poll for DMA completion with interrupts masked.
>
On Fri, Jun 03, 2016 at 07:29:11PM -0700, Eric Anholt wrote:
> The tx_status hook is supposed to be safe to call from interrupt
> context, but it wouldn't ever return completion for the last transfer,
> meaning you couldn't poll for DMA completion with interrupts masked.
and why is that?
> This f
The tx_status hook is supposed to be safe to call from interrupt
context, but it wouldn't ever return completion for the last transfer,
meaning you couldn't poll for DMA completion with interrupts masked.
This fixes IRQ handling for bcm2835's DSI1, which requires using the
DMA engine to write its
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