ASoC: AMD: Configure wclk and bclk of master codec

With CCF support in da7219, we can now set the correct rate of
wclk and bclk.

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c
index 8a619a7..16b0ea3 100644 (file)
--- a/sound/soc/amd/acp-da7219-max98357a.c
+++ b/sound/soc/amd/acp-da7219-max98357a.c
@@ -46,7 +46,8 @@
 #define DUAL_CHANNEL           2
 
 static struct snd_soc_jack cz_jack;
-static struct clk *da7219_dai_clk;
+static struct clk *da7219_dai_wclk;
+static struct clk *da7219_dai_bclk;
 extern bool bt_uart_enable;
 
 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
@@ -72,7 +73,8 @@ static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
                return ret;
        }
 
-       da7219_dai_clk = clk_get(component->dev, "da7219-dai-bclk");
+       da7219_dai_wclk = clk_get(component->dev, "da7219-dai-wclk");
+       da7219_dai_bclk = clk_get(component->dev, "da7219-dai-bclk");
 
        ret = snd_soc_card_jack_new(card, "Headset Jack",
                                SND_JACK_HEADSET | SND_JACK_LINEOUT |
@@ -94,12 +96,15 @@ static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
        return 0;
 }
 
-static int da7219_clk_enable(struct snd_pcm_substream *substream)
+static int da7219_clk_enable(struct snd_pcm_substream *substream,
+                            int wclk_rate, int bclk_rate)
 {
        int ret = 0;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
 
-       ret = clk_prepare_enable(da7219_dai_clk);
+       clk_set_rate(da7219_dai_wclk, wclk_rate);
+       clk_set_rate(da7219_dai_bclk, bclk_rate);
+       ret = clk_prepare_enable(da7219_dai_bclk);
        if (ret < 0) {
                dev_err(rtd->dev, "can't enable master clock %d\n", ret);
                return ret;
@@ -110,7 +115,7 @@ static int da7219_clk_enable(struct snd_pcm_substream *substream)
 
 static void da7219_clk_disable(void)
 {
-       clk_disable_unprepare(da7219_dai_clk);
+       clk_disable_unprepare(da7219_dai_bclk);
 }
 
 static const unsigned int channels[] = {
@@ -151,7 +156,7 @@ static int cz_da7219_play_startup(struct snd_pcm_substream *substream)
                                   &constraints_rates);
 
        machine->play_i2s_instance = I2S_SP_INSTANCE;
-       return da7219_clk_enable(substream);
+       return 0;
 }
 
 static int cz_da7219_cap_startup(struct snd_pcm_substream *substream)
@@ -173,12 +178,7 @@ static int cz_da7219_cap_startup(struct snd_pcm_substream *substream)
 
        machine->cap_i2s_instance = I2S_SP_INSTANCE;
        machine->capture_channel = CAP_CHANNEL1;
-       return da7219_clk_enable(substream);
-}
-
-static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
-{
-       da7219_clk_disable();
+       return 0;
 }
 
 static int cz_max_startup(struct snd_pcm_substream *substream)
@@ -199,12 +199,7 @@ static int cz_max_startup(struct snd_pcm_substream *substream)
                                   &constraints_rates);
 
        machine->play_i2s_instance = I2S_BT_INSTANCE;
-       return da7219_clk_enable(substream);
-}
-
-static void cz_max_shutdown(struct snd_pcm_substream *substream)
-{
-       da7219_clk_disable();
+       return 0;
 }
 
 static int cz_dmic0_startup(struct snd_pcm_substream *substream)
@@ -225,7 +220,7 @@ static int cz_dmic0_startup(struct snd_pcm_substream *substream)
                                   &constraints_rates);
 
        machine->cap_i2s_instance = I2S_BT_INSTANCE;
-       return da7219_clk_enable(substream);
+       return 0;
 }
 
 static int cz_dmic1_startup(struct snd_pcm_substream *substream)
@@ -247,10 +242,28 @@ static int cz_dmic1_startup(struct snd_pcm_substream *substream)
 
        machine->cap_i2s_instance = I2S_SP_INSTANCE;
        machine->capture_channel = CAP_CHANNEL0;
-       return da7219_clk_enable(substream);
+       return 0;
 }
 
-static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
+static int cz_da7219_params(struct snd_pcm_substream *substream,
+                                     struct snd_pcm_hw_params *params)
+{
+       int wclk, bclk;
+
+       wclk = params_rate(params);
+       bclk = wclk * params_channels(params) *
+               snd_pcm_format_width(params_format(params));
+       /* ADAU7002 spec: "The ADAU7002 requires a BCLK rate
+        * that is minimum of 64x the LRCLK sample rate."
+        * DA7219 is the only clk source so for all codecs
+        * we have to limit bclk to 64X lrclk.
+        */
+       if (bclk < (wclk * 64))
+               bclk = wclk * 64;
+       return da7219_clk_enable(substream, wclk, bclk);
+}
+
+static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 {
        da7219_clk_disable();
 }
@@ -258,26 +271,31 @@ static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
 static const struct snd_soc_ops cz_da7219_play_ops = {
        .startup = cz_da7219_play_startup,
        .shutdown = cz_da7219_shutdown,
+       .hw_params = cz_da7219_params,
 };
 
 static const struct snd_soc_ops cz_da7219_cap_ops = {
        .startup = cz_da7219_cap_startup,
        .shutdown = cz_da7219_shutdown,
+       .hw_params = cz_da7219_params,
 };
 
 static const struct snd_soc_ops cz_max_play_ops = {
        .startup = cz_max_startup,
-       .shutdown = cz_max_shutdown,
+       .shutdown = cz_da7219_shutdown,
+       .hw_params = cz_da7219_params,
 };
 
 static const struct snd_soc_ops cz_dmic0_cap_ops = {
        .startup = cz_dmic0_startup,
-       .shutdown = cz_dmic_shutdown,
+       .shutdown = cz_da7219_shutdown,
+       .hw_params = cz_da7219_params,
 };
 
 static const struct snd_soc_ops cz_dmic1_cap_ops = {
        .startup = cz_dmic1_startup,
-       .shutdown = cz_dmic_shutdown,
+       .shutdown = cz_da7219_shutdown,
+       .hw_params = cz_da7219_params,
 };
 
 static struct snd_soc_dai_link cz_dai_7219_98357[] = {