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ASoC: atmel-classd: remove aclk clock 

Since gclk (generated-clk) is now able to determine the rate of the
audio_pll, there is no need for classd to have a direct phandle to the
audio_pll while already having a phandle to gclk.

Thus, remove all mentions to aclk in classd driver and update macros and
variable names.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
hifive-unleashed-5.1
Quentin Schulz 2017-08-10 08:34:07 +02:00 committed by Stephen Boyd
parent f8fef412f3
commit 4ab6cf11e7
1 changed files with 14 additions and 33 deletions
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47
sound/soc/atmel/atmel-classd.c
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@ -32,7 +32,6 @@ struct atmel_classd {
struct regmap *regmap;
struct clk *pclk;
struct clk *gclk;
struct clk *aclk;
int irq;
const struct atmel_classd_pdata *pdata;
};
@ -330,11 +329,6 @@ static int atmel_classd_codec_dai_startup(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
int ret;
ret = clk_prepare_enable(dd->aclk);
if (ret)
return ret;
return clk_prepare_enable(dd->gclk);
}
@ -357,31 +351,31 @@ static int atmel_classd_codec_dai_digital_mute(struct snd_soc_dai *codec_dai,
return 0;
}
#define CLASSD_ACLK_RATE_11M2896_MPY_8 (112896 * 100 * 8)
#define CLASSD_ACLK_RATE_12M288_MPY_8 (12288 * 1000 * 8)
#define CLASSD_GCLK_RATE_11M2896_MPY_8 (112896 * 100 * 8)
#define CLASSD_GCLK_RATE_12M288_MPY_8 (12288 * 1000 * 8)
static struct {
int rate;
int sample_rate;
int dsp_clk;
unsigned long aclk_rate;
unsigned long gclk_rate;
} const sample_rates[] = {
{ 8000, CLASSD_INTPMR_FRAME_8K,
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_ACLK_RATE_12M288_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
{ 16000, CLASSD_INTPMR_FRAME_16K,
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_ACLK_RATE_12M288_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
{ 32000, CLASSD_INTPMR_FRAME_32K,
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_ACLK_RATE_12M288_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
{ 48000, CLASSD_INTPMR_FRAME_48K,
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_ACLK_RATE_12M288_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
{ 96000, CLASSD_INTPMR_FRAME_96K,
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_ACLK_RATE_12M288_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
{ 22050, CLASSD_INTPMR_FRAME_22K,
CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_ACLK_RATE_11M2896_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_GCLK_RATE_11M2896_MPY_8 },
{ 44100, CLASSD_INTPMR_FRAME_44K,
CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_ACLK_RATE_11M2896_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_GCLK_RATE_11M2896_MPY_8 },
{ 88200, CLASSD_INTPMR_FRAME_88K,
CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_ACLK_RATE_11M2896_MPY_8 },
CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_GCLK_RATE_11M2896_MPY_8 },
};
static int
@ -410,13 +404,12 @@ atmel_classd_codec_dai_hw_params(struct snd_pcm_substream *substream,
}
dev_dbg(codec->dev,
"Selected SAMPLE_RATE of %dHz, ACLK_RATE of %ldHz\n",
sample_rates[best].rate, sample_rates[best].aclk_rate);
"Selected SAMPLE_RATE of %dHz, GCLK_RATE of %ldHz\n",
sample_rates[best].rate, sample_rates[best].gclk_rate);
clk_disable_unprepare(dd->gclk);
clk_disable_unprepare(dd->aclk);
ret = clk_set_rate(dd->aclk, sample_rates[best].aclk_rate);
ret = clk_set_rate(dd->gclk, sample_rates[best].gclk_rate);
if (ret)
return ret;
@ -426,10 +419,6 @@ atmel_classd_codec_dai_hw_params(struct snd_pcm_substream *substream,
snd_soc_update_bits(codec, CLASSD_INTPMR, mask, val);
ret = clk_prepare_enable(dd->aclk);
if (ret)
return ret;
return clk_prepare_enable(dd->gclk);
}
@ -441,7 +430,6 @@ atmel_classd_codec_dai_shutdown(struct snd_pcm_substream *substream,
struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
clk_disable_unprepare(dd->gclk);
clk_disable_unprepare(dd->aclk);
}
static int atmel_classd_codec_dai_prepare(struct snd_pcm_substream *substream,
@ -596,13 +584,6 @@ static int atmel_classd_probe(struct platform_device *pdev)
return ret;
}
dd->aclk = devm_clk_get(dev, "aclk");
if (IS_ERR(dd->aclk)) {
ret = PTR_ERR(dd->aclk);
dev_err(dev, "failed to get audio clock: %d\n", ret);
return ret;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
io_base = devm_ioremap_resource(dev, res);
if (IS_ERR(io_base)) {