linux-kernel - Re: [PATCH] ASoC: fsl-esai: fix ESAI TDM slot setting

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Message-ID: <20140210081504.GA16574@MrMyself>
Date:	Mon, 10 Feb 2014 16:15:05 +0800
From:	Nicolin Chen <Guangyu.Chen@...escale.com>
To:	Xiubo Li-B47053 <Li.Xiubo@...escale.com>
CC:	"broonie@...nel.org" <broonie@...nel.org>,
	"lgirdwood@...il.com" <lgirdwood@...il.com>,
	"perex@...ex.cz" <perex@...ex.cz>, "tiwai@...e.de" <tiwai@...e.de>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: fsl-esai: fix ESAI TDM slot setting

On Mon, Feb 10, 2014 at 04:24:43PM +0800, Xiubo Li-B47053 wrote:
> Sorry, my misunderstanding about your comment.
> 
> Please ignore the last mail.
> 
> I will send v2 of this patch.

No, you don't need to.

Just rechecked it with RM. Your patch is correct.

I forgot I used A's WIDTH intentionally at the first place.

TSMA-> [15:0]
TSMB-> [31:16] -> higher 16bits.

Thus its shift should be corresponding to A's WIDTH.

The patch is fine. Acked.

Thank you.

> > > > diff --git a/sound/soc/fsl/fsl_esai.h b/sound/soc/fsl/fsl_esai.h
> > > > index 9c9f957..75e1403 100644
> > > > --- a/sound/soc/fsl/fsl_esai.h
> > > > +++ b/sound/soc/fsl/fsl_esai.h
> > > > @@ -322,7 +322,7 @@
> > > >  #define ESAI_xSMB_xS_SHIFT	0
> > > >  #define ESAI_xSMB_xS_WIDTH	16
> > > >  #define ESAI_xSMB_xS_MASK	(((1 << ESAI_xSMB_xS_WIDTH) - 1) <<
> > > ESAI_xSMB_xS_SHIFT)
> > > > -#define ESAI_xSMB_xS(v)		(((v) >> ESAI_xSMA_xS_WIDTH) &
> > > ESAI_xSMA_xS_MASK)
> > > > +#define ESAI_xSMB_xS(v)		(((v) >> ESAI_xSMA_xS_WIDTH) &
> > > ESAI_xSMB_xS_MASK)
> > >
> > > It should use ESAI_xSMB_xS_WIDTH.
> > >
> > 
> > Well, the ESAI_xSMB_xS_WIDTH is 0x0010(16), and ESAI_xSMB_xS_MASK will
> > be 0xFFFF.
> > 
> > 
> > 
> > Thanks,
> > 
> > --
> > Best Regards,
> > Xiubo


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