[alsa-devel] [PATCH] ASoC: sgtl5000: Fix wrong mask in some snd_soc_update_bits calls

[Dong Aisheng-B29396]

> -----Original Message-----
> From: linux-kernel-owner at vger.kernel.org [mailto:linux-kernel-
> owner at vger.kernel.org] On Behalf Of Axel Lin
> Sent: Friday, October 21, 2011 9:55 AM
> To: linux-kernel at vger.kernel.org
> Cc: Dong Aisheng-B29396; Wolfram Sang; Liam Girdwood; Mark Brown; alsa-
> devel at alsa-project.org
> Subject: [PATCH] ASoC: sgtl5000: Fix wrong mask in some
> snd_soc_update_bits calls
> 
> Ensure all mask bits are clear before setting new value.
> 
> Signed-off-by: Axel Lin <axel.lin at gmail.com>
> ---
> I don't have this hardware, I'd appreciate if someone can test this patch.
> 
> Thanks,
> Axel
>  sound/soc/codecs/sgtl5000.c |   12 ++++++------
>  1 files changed, 6 insertions(+), 6 deletions(-)

It runs ok at my side.
Acked-by: Dong Aisheng <b29396 at freescale.com>

> diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
> index 32b5bbd..d15695d 100644
> --- a/sound/soc/codecs/sgtl5000.c
> +++ b/sound/soc/codecs/sgtl5000.c
> @@ -723,7 +723,9 @@ static int sgtl5000_pcm_hw_params(struct
> snd_pcm_substream *substream,
>  		return -EINVAL;
>  	}
> 
> -	snd_soc_update_bits(codec, SGTL5000_CHIP_I2S_CTRL, i2s_ctl,
> i2s_ctl);
> +	snd_soc_update_bits(codec, SGTL5000_CHIP_I2S_CTRL,
> +			    SGTL5000_I2S_DLEN_MASK | SGTL5000_I2S_SCLKFREQ_MASK,
> +			    i2s_ctl);
> 
>  	return 0;
>  }
> @@ -1146,8 +1148,7 @@ static int sgtl5000_set_power_regs(struct
> snd_soc_codec *codec)
>  		vag = (vag - SGTL5000_ANA_GND_BASE) / SGTL5000_ANA_GND_STP;
> 
>  	snd_soc_update_bits(codec, SGTL5000_CHIP_REF_CTRL,
> -			vag << SGTL5000_ANA_GND_SHIFT,
> -			vag << SGTL5000_ANA_GND_SHIFT);
> +			SGTL5000_ANA_GND_MASK, vag << SGTL5000_ANA_GND_SHIFT);
> 
>  	/* set line out VAG to vddio / 2, in range (0.8v, 1.675v) */
>  	vag = vddio / 2;
> @@ -1161,9 +1162,8 @@ static int sgtl5000_set_power_regs(struct
> snd_soc_codec *codec)
>  		    SGTL5000_LINE_OUT_GND_STP;
> 
>  	snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_CTRL,
> -			vag << SGTL5000_LINE_OUT_GND_SHIFT |
> -			SGTL5000_LINE_OUT_CURRENT_360u <<
> -				SGTL5000_LINE_OUT_CURRENT_SHIFT,
> +			SGTL5000_LINE_OUT_CURRENT_MASK |
> +			SGTL5000_LINE_OUT_GND_MASK,
>  			vag << SGTL5000_LINE_OUT_GND_SHIFT |
>  			SGTL5000_LINE_OUT_CURRENT_360u <<
>  				SGTL5000_LINE_OUT_CURRENT_SHIFT);
> --
> 1.7.5.4
> 
> 
> 
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