* [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write
@ 2011-10-17 22:25 Axel Lin
2011-10-18 15:47 ` Lars-Peter Clausen
2011-10-19 11:07 ` Mark Brown
0 siblings, 2 replies; 4+ messages in thread
From: Axel Lin @ 2011-10-17 22:25 UTC (permalink / raw)
To: linux-kernel
Cc: alsa-devel, Mark Brown, Barry Song, Liam Girdwood,
Lars-Peter Clausen
Use snd_soc_update_bits for read-modify-write register access instead of
open-coding it using snd_soc_read and snd_soc_write
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
sound/soc/codecs/ad193x.c | 31 +++++++++++++++----------------
1 files changed, 15 insertions(+), 16 deletions(-)
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 39056ce..1206021 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -103,12 +103,14 @@ static const struct snd_soc_dapm_route audio_paths[] = {
static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- int reg;
- reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
- reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
- (~AD193X_DAC_MASTER_MUTE);
- snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
+ if (mute)
+ snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
+ AD193X_DAC_MASTER_MUTE,
+ AD193X_DAC_MASTER_MUTE);
+ else
+ snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
+ AD193X_DAC_MASTER_MUTE, 0);
return 0;
}
@@ -262,7 +264,7 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- int word_len = 0, reg = 0, master_rate = 0;
+ int word_len = 0, master_rate = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
@@ -297,18 +299,15 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
break;
}
- reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
- reg = (reg & (~AD193X_PLL_INPUT_MASK)) | master_rate;
- snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
+ snd_soc_update_bits(codec, AD193X_PLL_CLK_CTRL0,
+ AD193X_PLL_INPUT_MASK, master_rate);
- reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
- reg = (reg & (~AD193X_DAC_WORD_LEN_MASK))
- | (word_len << AD193X_DAC_WORD_LEN_SHFT);
- snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
+ snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
+ AD193X_DAC_WORD_LEN_MASK,
+ word_len << AD193X_DAC_WORD_LEN_SHFT);
- reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
- reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
- snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
+ snd_soc_update_bits(codec, AD193X_ADC_CTRL1,
+ AD193X_ADC_WORD_LEN_MASK, word_len);
return 0;
}
--
1.7.5.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write
2011-10-17 22:25 [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write Axel Lin
@ 2011-10-18 15:47 ` Lars-Peter Clausen
2011-10-19 8:01 ` Girdwood, Liam
2011-10-19 11:07 ` Mark Brown
1 sibling, 1 reply; 4+ messages in thread
From: Lars-Peter Clausen @ 2011-10-18 15:47 UTC (permalink / raw)
To: Axel Lin; +Cc: alsa-devel, Mark Brown, Barry Song, linux-kernel, Liam Girdwood
On 10/18/2011 12:25 AM, Axel Lin wrote:
> Use snd_soc_update_bits for read-modify-write register access instead of
> open-coding it using snd_soc_read and snd_soc_write
>
> Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Thanks
> ---
> sound/soc/codecs/ad193x.c | 31 +++++++++++++++----------------
> 1 files changed, 15 insertions(+), 16 deletions(-)
>
> diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
> index 39056ce..1206021 100644
> --- a/sound/soc/codecs/ad193x.c
> +++ b/sound/soc/codecs/ad193x.c
> @@ -103,12 +103,14 @@ static const struct snd_soc_dapm_route audio_paths[] = {
> static int ad193x_mute(struct snd_soc_dai *dai, int mute)
> {
> struct snd_soc_codec *codec = dai->codec;
> - int reg;
>
> - reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
> - reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
> - (~AD193X_DAC_MASTER_MUTE);
> - snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
> + if (mute)
> + snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
> + AD193X_DAC_MASTER_MUTE,
> + AD193X_DAC_MASTER_MUTE);
> + else
> + snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
> + AD193X_DAC_MASTER_MUTE, 0);
>
> return 0;
> }
> @@ -262,7 +264,7 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
> struct snd_pcm_hw_params *params,
> struct snd_soc_dai *dai)
> {
> - int word_len = 0, reg = 0, master_rate = 0;
> + int word_len = 0, master_rate = 0;
>
> struct snd_soc_pcm_runtime *rtd = substream->private_data;
> struct snd_soc_codec *codec = rtd->codec;
> @@ -297,18 +299,15 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
> break;
> }
>
> - reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
> - reg = (reg & (~AD193X_PLL_INPUT_MASK)) | master_rate;
> - snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
> + snd_soc_update_bits(codec, AD193X_PLL_CLK_CTRL0,
> + AD193X_PLL_INPUT_MASK, master_rate);
>
> - reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
> - reg = (reg & (~AD193X_DAC_WORD_LEN_MASK))
> - | (word_len << AD193X_DAC_WORD_LEN_SHFT);
> - snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
> + snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
> + AD193X_DAC_WORD_LEN_MASK,
> + word_len << AD193X_DAC_WORD_LEN_SHFT);
>
> - reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
> - reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
> - snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
> + snd_soc_update_bits(codec, AD193X_ADC_CTRL1,
> + AD193X_ADC_WORD_LEN_MASK, word_len);
>
> return 0;
> }
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write
2011-10-18 15:47 ` Lars-Peter Clausen
@ 2011-10-19 8:01 ` Girdwood, Liam
0 siblings, 0 replies; 4+ messages in thread
From: Girdwood, Liam @ 2011-10-19 8:01 UTC (permalink / raw)
To: Lars-Peter Clausen
Cc: Axel Lin, Mark Brown, Barry Song, linux-kernel, alsa-devel
On 18 October 2011 16:47, Lars-Peter Clausen <lars@metafoo.de> wrote:
> On 10/18/2011 12:25 AM, Axel Lin wrote:
>> Use snd_soc_update_bits for read-modify-write register access instead of
>> open-coding it using snd_soc_read and snd_soc_write
>>
>> Signed-off-by: Axel Lin <axel.lin@gmail.com>
>
> Acked-by: Lars-Peter Clausen <lars@metafoo.de>
>
Acked-by: Liam Girdwood <lrg@ti.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write
2011-10-17 22:25 [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write Axel Lin
2011-10-18 15:47 ` Lars-Peter Clausen
@ 2011-10-19 11:07 ` Mark Brown
1 sibling, 0 replies; 4+ messages in thread
From: Mark Brown @ 2011-10-19 11:07 UTC (permalink / raw)
To: Axel Lin
Cc: alsa-devel, Lars-Peter Clausen, Barry Song, linux-kernel,
Liam Girdwood
On Tue, Oct 18, 2011 at 06:25:08AM +0800, Axel Lin wrote:
> Use snd_soc_update_bits for read-modify-write register access instead of
> open-coding it using snd_soc_read and snd_soc_write
Applied, thanks.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2011-10-17 22:25 [PATCH v2] ASoC: ad193x: Use snd_soc_update_bits for read-modify-write Axel Lin
2011-10-18 15:47 ` Lars-Peter Clausen
2011-10-19 8:01 ` Girdwood, Liam
2011-10-19 11:07 ` Mark Brown
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