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>

diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c
index b7ef8c59b49a2bdb2895f2203e0c207170227c6f..be6b775b6f46a75ece4b8e1d95891a5dc77a49fa 100644 (file)
--- a/sound/soc/atmel/atmel-classd.c
+++ b/sound/soc/atmel/atmel-classd.c
@@ -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)) {