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-rw-r--r--sound/soc/atmel/atmel-pcm.c2
-rw-r--r--sound/soc/atmel/atmel_ssc_dai.c33
-rw-r--r--sound/soc/atmel/playpaq_wm8510.c24
-rw-r--r--sound/soc/atmel/sam9g20_wm8731.c124
4 files changed, 136 insertions, 47 deletions
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 3dcdc4e3cfa0..9ef6b96373f5 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -347,7 +347,7 @@ static int atmel_pcm_mmap(struct snd_pcm_substream *substream,
vma->vm_end - vma->vm_start, vma->vm_page_prot);
}
-struct snd_pcm_ops atmel_pcm_ops = {
+static struct snd_pcm_ops atmel_pcm_ops = {
.open = atmel_pcm_open,
.close = atmel_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index ff0054b76502..e588e63f18d2 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -697,6 +697,15 @@ static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai)
#define ATMEL_SSC_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+static struct snd_soc_dai_ops atmel_ssc_dai_ops = {
+ .startup = atmel_ssc_startup,
+ .shutdown = atmel_ssc_shutdown,
+ .prepare = atmel_ssc_prepare,
+ .hw_params = atmel_ssc_hw_params,
+ .set_fmt = atmel_ssc_set_dai_fmt,
+ .set_clkdiv = atmel_ssc_set_dai_clkdiv,
+};
+
struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
{ .name = "atmel-ssc0",
.id = 0,
@@ -712,13 +721,7 @@ struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
.channels_max = 2,
.rates = ATMEL_SSC_RATES,
.formats = ATMEL_SSC_FORMATS,},
- .ops = {
- .startup = atmel_ssc_startup,
- .shutdown = atmel_ssc_shutdown,
- .prepare = atmel_ssc_prepare,
- .hw_params = atmel_ssc_hw_params,
- .set_fmt = atmel_ssc_set_dai_fmt,
- .set_clkdiv = atmel_ssc_set_dai_clkdiv,},
+ .ops = &atmel_ssc_dai_ops,
.private_data = &ssc_info[0],
},
#if NUM_SSC_DEVICES == 3
@@ -736,13 +739,7 @@ struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
.channels_max = 2,
.rates = ATMEL_SSC_RATES,
.formats = ATMEL_SSC_FORMATS,},
- .ops = {
- .startup = atmel_ssc_startup,
- .shutdown = atmel_ssc_shutdown,
- .prepare = atmel_ssc_prepare,
- .hw_params = atmel_ssc_hw_params,
- .set_fmt = atmel_ssc_set_dai_fmt,
- .set_clkdiv = atmel_ssc_set_dai_clkdiv,},
+ .ops = &atmel_ssc_dai_ops,
.private_data = &ssc_info[1],
},
{ .name = "atmel-ssc2",
@@ -759,13 +756,7 @@ struct snd_soc_dai atmel_ssc_dai[NUM_SSC_DEVICES] = {
.channels_max = 2,
.rates = ATMEL_SSC_RATES,
.formats = ATMEL_SSC_FORMATS,},
- .ops = {
- .startup = atmel_ssc_startup,
- .shutdown = atmel_ssc_shutdown,
- .prepare = atmel_ssc_prepare,
- .hw_params = atmel_ssc_hw_params,
- .set_fmt = atmel_ssc_set_dai_fmt,
- .set_clkdiv = atmel_ssc_set_dai_clkdiv,},
+ .ops = &atmel_ssc_dai_ops,
.private_data = &ssc_info[2],
},
#endif
diff --git a/sound/soc/atmel/playpaq_wm8510.c b/sound/soc/atmel/playpaq_wm8510.c
index 43dd8cee83c6..70657534e6b1 100644
--- a/sound/soc/atmel/playpaq_wm8510.c
+++ b/sound/soc/atmel/playpaq_wm8510.c
@@ -164,38 +164,38 @@ static int playpaq_wm8510_hw_params(struct snd_pcm_substream *substream,
*/
switch (params_rate(params)) {
case 48000:
- pll_out = 12288000;
- mclk_div = WM8510_MCLKDIV_1;
+ pll_out = 24576000;
+ mclk_div = WM8510_MCLKDIV_2;
bclk = WM8510_BCLKDIV_8;
break;
case 44100:
- pll_out = 11289600;
- mclk_div = WM8510_MCLKDIV_1;
+ pll_out = 22579200;
+ mclk_div = WM8510_MCLKDIV_2;
bclk = WM8510_BCLKDIV_8;
break;
case 22050:
- pll_out = 11289600;
- mclk_div = WM8510_MCLKDIV_2;
+ pll_out = 22579200;
+ mclk_div = WM8510_MCLKDIV_4;
bclk = WM8510_BCLKDIV_8;
break;
case 16000:
- pll_out = 12288000;
- mclk_div = WM8510_MCLKDIV_3;
+ pll_out = 24576000;
+ mclk_div = WM8510_MCLKDIV_6;
bclk = WM8510_BCLKDIV_8;
break;
case 11025:
- pll_out = 11289600;
- mclk_div = WM8510_MCLKDIV_4;
+ pll_out = 22579200;
+ mclk_div = WM8510_MCLKDIV_8;
bclk = WM8510_BCLKDIV_8;
break;
case 8000:
- pll_out = 12288000;
- mclk_div = WM8510_MCLKDIV_6;
+ pll_out = 24576000;
+ mclk_div = WM8510_MCLKDIV_12;
bclk = WM8510_BCLKDIV_8;
break;
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index 6ea04be911d0..173a239a541c 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -36,6 +36,7 @@
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/i2c.h>
#include <linux/atmel-ssc.h>
@@ -45,6 +46,7 @@
#include <sound/soc.h>
#include <sound/soc-dapm.h>
+#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
@@ -52,6 +54,9 @@
#include "atmel-pcm.h"
#include "atmel_ssc_dai.h"
+#define MCLK_RATE 12000000
+
+static struct clk *mclk;
static int at91sam9g20ek_startup(struct snd_pcm_substream *substream)
{
@@ -59,11 +64,12 @@ static int at91sam9g20ek_startup(struct snd_pcm_substream *substream)
struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
int ret;
- /* codec system clock is supplied by PCK0, set to 12MHz */
ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK,
- 12000000, SND_SOC_CLOCK_IN);
- if (ret < 0)
+ MCLK_RATE, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ clk_disable(mclk);
return ret;
+ }
return 0;
}
@@ -189,6 +195,31 @@ static struct snd_soc_ops at91sam9g20ek_ops = {
.shutdown = at91sam9g20ek_shutdown,
};
+static int at91sam9g20ek_set_bias_level(struct snd_soc_card *card,
+ enum snd_soc_bias_level level)
+{
+ static int mclk_on;
+ int ret = 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ if (!mclk_on)
+ ret = clk_enable(mclk);
+ if (ret == 0)
+ mclk_on = 1;
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ case SND_SOC_BIAS_STANDBY:
+ if (mclk_on)
+ clk_disable(mclk);
+ mclk_on = 0;
+ break;
+ }
+
+ return ret;
+}
static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Int Mic", NULL),
@@ -243,21 +274,48 @@ static struct snd_soc_dai_link at91sam9g20ek_dai = {
};
static struct snd_soc_card snd_soc_at91sam9g20ek = {
- .name = "WM8731",
+ .name = "AT91SAMG20-EK",
.platform = &atmel_soc_platform,
.dai_link = &at91sam9g20ek_dai,
.num_links = 1,
+ .set_bias_level = at91sam9g20ek_set_bias_level,
};
-static struct wm8731_setup_data at91sam9g20ek_wm8731_setup = {
- .i2c_bus = 0,
- .i2c_address = 0x1b,
-};
+/*
+ * FIXME: This is a temporary bodge to avoid cross-tree merge issues.
+ * New drivers should register the wm8731 I2C device in the machine
+ * setup code (under arch/arm for ARM systems).
+ */
+static int wm8731_i2c_register(void)
+{
+ struct i2c_board_info info;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ info.addr = 0x1b;
+ strlcpy(info.type, "wm8731", I2C_NAME_SIZE);
+
+ adapter = i2c_get_adapter(0);
+ if (!adapter) {
+ printk(KERN_ERR "can't get i2c adapter 0\n");
+ return -ENODEV;
+ }
+
+ client = i2c_new_device(adapter, &info);
+ i2c_put_adapter(adapter);
+ if (!client) {
+ printk(KERN_ERR "can't add i2c device at 0x%x\n",
+ (unsigned int)info.addr);
+ return -ENODEV;
+ }
+
+ return 0;
+}
static struct snd_soc_device at91sam9g20ek_snd_devdata = {
.card = &snd_soc_at91sam9g20ek,
.codec_dev = &soc_codec_dev_wm8731,
- .codec_data = &at91sam9g20ek_wm8731_setup,
};
static struct platform_device *at91sam9g20ek_snd_device;
@@ -266,23 +324,56 @@ static int __init at91sam9g20ek_init(void)
{
struct atmel_ssc_info *ssc_p = at91sam9g20ek_dai.cpu_dai->private_data;
struct ssc_device *ssc = NULL;
+ struct clk *pllb;
int ret;
+ if (!machine_is_at91sam9g20ek())
+ return -ENODEV;
+
+ /*
+ * Codec MCLK is supplied by PCK0 - set it up.
+ */
+ mclk = clk_get(NULL, "pck0");
+ if (IS_ERR(mclk)) {
+ printk(KERN_ERR "ASoC: Failed to get MCLK\n");
+ ret = PTR_ERR(mclk);
+ goto err;
+ }
+
+ pllb = clk_get(NULL, "pllb");
+ if (IS_ERR(mclk)) {
+ printk(KERN_ERR "ASoC: Failed to get PLLB\n");
+ ret = PTR_ERR(mclk);
+ goto err_mclk;
+ }
+ ret = clk_set_parent(mclk, pllb);
+ clk_put(pllb);
+ if (ret != 0) {
+ printk(KERN_ERR "ASoC: Failed to set MCLK parent\n");
+ goto err_mclk;
+ }
+
+ clk_set_rate(mclk, MCLK_RATE);
+
/*
* Request SSC device
*/
ssc = ssc_request(0);
if (IS_ERR(ssc)) {
+ printk(KERN_ERR "ASoC: Failed to request SSC 0\n");
ret = PTR_ERR(ssc);
ssc = NULL;
goto err_ssc;
}
ssc_p->ssc = ssc;
+ ret = wm8731_i2c_register();
+ if (ret != 0)
+ goto err_ssc;
+
at91sam9g20ek_snd_device = platform_device_alloc("soc-audio", -1);
if (!at91sam9g20ek_snd_device) {
- printk(KERN_DEBUG
- "platform device allocation failed\n");
+ printk(KERN_ERR "ASoC: Platform device allocation failed\n");
ret = -ENOMEM;
}
@@ -292,14 +383,19 @@ static int __init at91sam9g20ek_init(void)
ret = platform_device_add(at91sam9g20ek_snd_device);
if (ret) {
- printk(KERN_DEBUG
- "platform device allocation failed\n");
+ printk(KERN_ERR "ASoC: Platform device allocation failed\n");
platform_device_put(at91sam9g20ek_snd_device);
}
return ret;
err_ssc:
+ ssc_free(ssc);
+ ssc_p->ssc = NULL;
+err_mclk:
+ clk_put(mclk);
+ mclk = NULL;
+err:
return ret;
}
@@ -317,6 +413,8 @@ static void __exit at91sam9g20ek_exit(void)
platform_device_unregister(at91sam9g20ek_snd_device);
at91sam9g20ek_snd_device = NULL;
+ clk_put(mclk);
+ mclk = NULL;
}
module_init(at91sam9g20ek_init);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.