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SubjectRe: [PATCH V2 3/3] ASoC: fsl_asrc: spba clock is needed by asrc device
On Fri, Nov 20, 2015 at 08:29:46AM -0600, Rob Herring wrote:
> On Fri, Nov 20, 2015 at 02:17:53PM +0800, Shengjiu Wang wrote:
> > ASRC need to enable the spba clock, when sdma is using share peripheral
> > script. In this case, there is two spba master port is used, if don't
> > enable the clock, the spba bus will have arbitration issue, which may
> > cause read/write wrong data from/to ASRC registers
> >
> > Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
> > ---
> > Documentation/devicetree/bindings/sound/fsl,asrc.txt | 2 ++
> > sound/soc/fsl/fsl_asrc.c | 10 ++++++++++
> > sound/soc/fsl/fsl_asrc.h | 1 +
> > 3 files changed, 13 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
> > index b93362a..d8eeee3 100644
> > --- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt
> > +++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
> > @@ -25,6 +25,8 @@ Required properties:
> > "mem" Peripheral access clock to access registers.
> > "ipg" Peripheral clock to driver module.
> > "asrck_<0-f>" Clock sources for input and output clock.
> > + "spba" The spba clock is needed when two spba master port
> > + is used.
>
> I'm assuming the same comments on patch 1 apply to all 3.

Yes. I should have mentioned that.

Nicolin


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