linux-kernel - Re: [PATCH v2 13/16] ASoC: fsl_ssi: Clean up _fsl_ssi_set_dai

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Date:   Sun, 14 Jan 2018 16:11:12 -0800
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
Cc:     timur@...i.org, broonie@...nel.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, alsa-devel@...a-project.org,
        lgirdwood@...il.com, fabio.estevam@....com, caleb@...me.org,
        arnaud.mouiche@...oxia.com, lukma@...x.de, kernel@...gutronix.de
Subject: Re: [PATCH v2 13/16] ASoC: fsl_ssi: Clean up _fsl_ssi_set_dai_fmt()

On Sun, Jan 14, 2018 at 11:40:31PM +0100, Maciej S. Szmigiero wrote:
> >  	case SND_SOC_DAIFMT_I2S:
> > -		regmap_update_bits(regs, REG_SSI_STCCR,
> > -				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(2));
> > -		regmap_update_bits(regs, REG_SSI_SRCCR,
> > -				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(2));
> >  		switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
> >  		case SND_SOC_DAIFMT_CBM_CFS:
> >  		case SND_SOC_DAIFMT_CBS_CFS:
> > +			if (IS_ERR(ssi->baudclk)) {
> > +				dev_err(ssi->dev,
> > +					"missing baudclk for master mode\n");
> > +				return -EINVAL;
> > +			}
> 
> The original code did this check only for fsl_ssi_is_i2s_master(ssi),
> that is, only for SND_SOC_DAIFMT_CBS_CFS while here you also do it for
> SND_SOC_DAIFMT_CBM_CFS.

You are right. This patch isn't supposed to change that. I mixed an
intention from another patch. Will revise this part in the v3.

Thanks a lot