niansa-misc/linux
1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Code Issues Projects Releases Packages Wiki Activity

ASoC: AMD: Configure wclk and bclk of master codec

Browse source 
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>
This commit is contained in:
Agrawal, Akshu 2019-04-17 10:05:13 +00:00 • committed by Mark Brown
parent f2a1fdb50d
commit bb24a31ed5
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 42 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

66
sound/soc/amd/acp-da7219-max98357a.c
View file

@ -46,7 +46,8 @@
#define DUAL_CHANNEL 2 #define DUAL_CHANNEL 2
static struct snd_soc_jack cz_jack; 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; extern bool bt_uart_enable;
static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd) 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; 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", ret = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_LINEOUT | SND_JACK_HEADSET | SND_JACK_LINEOUT |
@ -94,12 +96,15 @@ static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
return 0; 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; int ret = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data; 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) { if (ret < 0) {
dev_err(rtd->dev, "can't enable master clock %d\n", ret); dev_err(rtd->dev, "can't enable master clock %d\n", ret);
return ret; return ret;
@ -110,7 +115,7 @@ static int da7219_clk_enable(struct snd_pcm_substream *substream)
static void da7219_clk_disable(void) static void da7219_clk_disable(void)
{ {
clk_disable_unprepare(da7219_dai_clk); clk_disable_unprepare(da7219_dai_bclk);
} }
static const unsigned int channels[] = { static const unsigned int channels[] = {
@ -151,7 +156,7 @@ static int cz_da7219_play_startup(struct snd_pcm_substream *substream)
&constraints_rates); &constraints_rates);
machine->play_i2s_instance = I2S_SP_INSTANCE; 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) 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->cap_i2s_instance = I2S_SP_INSTANCE;
machine->capture_channel = CAP_CHANNEL1; machine->capture_channel = CAP_CHANNEL1;
return da7219_clk_enable(substream); return 0;
}
static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
{
da7219_clk_disable();
} }
static int cz_max_startup(struct snd_pcm_substream *substream) 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); &constraints_rates);
machine->play_i2s_instance = I2S_BT_INSTANCE; machine->play_i2s_instance = I2S_BT_INSTANCE;
return da7219_clk_enable(substream); return 0;
}
static void cz_max_shutdown(struct snd_pcm_substream *substream)
{
da7219_clk_disable();
} }
static int cz_dmic0_startup(struct snd_pcm_substream *substream) 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); &constraints_rates);
machine->cap_i2s_instance = I2S_BT_INSTANCE; machine->cap_i2s_instance = I2S_BT_INSTANCE;
return da7219_clk_enable(substream); return 0;
} }
static int cz_dmic1_startup(struct snd_pcm_substream *substream) 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->cap_i2s_instance = I2S_SP_INSTANCE;
machine->capture_channel = CAP_CHANNEL0; 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(); 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 = { static const struct snd_soc_ops cz_da7219_play_ops = {
.startup = cz_da7219_play_startup, .startup = cz_da7219_play_startup,
.shutdown = cz_da7219_shutdown, .shutdown = cz_da7219_shutdown,
.hw_params = cz_da7219_params,
}; };
static const struct snd_soc_ops cz_da7219_cap_ops = { static const struct snd_soc_ops cz_da7219_cap_ops = {
.startup = cz_da7219_cap_startup, .startup = cz_da7219_cap_startup,
.shutdown = cz_da7219_shutdown, .shutdown = cz_da7219_shutdown,
.hw_params = cz_da7219_params,
}; };
static const struct snd_soc_ops cz_max_play_ops = { static const struct snd_soc_ops cz_max_play_ops = {
.startup = cz_max_startup, .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 = { static const struct snd_soc_ops cz_dmic0_cap_ops = {
.startup = cz_dmic0_startup, .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 = { static const struct snd_soc_ops cz_dmic1_cap_ops = {
.startup = cz_dmic1_startup, .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[] = { static struct snd_soc_dai_link cz_dai_7219_98357[] = {