aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/pxa
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/pxa')
-rw-r--r--sound/soc/pxa/Kconfig2
-rw-r--r--sound/soc/pxa/magician.c56
-rw-r--r--sound/soc/pxa/palm27x.c204
-rw-r--r--sound/soc/pxa/pxa-ssp.c79
-rw-r--r--sound/soc/pxa/pxa2xx-ac97.c12
-rw-r--r--sound/soc/pxa/pxa2xx-i2s.c7
6 files changed, 156 insertions, 204 deletions
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 6375b4ea525d..dcb3181bb340 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -138,7 +138,7 @@ config SND_PXA2XX_SOC_MIOA701
config SND_PXA2XX_SOC_IMOTE2
tristate "SoC Audio support for IMote 2"
- depends on SND_PXA2XX_SOC && MACH_INTELMOTE2
+ depends on SND_PXA2XX_SOC && MACH_INTELMOTE2 && I2C
select SND_PXA2XX_SOC_I2S
select SND_SOC_WM8940
help
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index 326955dea36c..9f7c61e23daf 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -20,12 +20,14 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
+#include <sound/uda1380.h>
#include <mach/magician.h>
#include <asm/mach-types.h>
@@ -188,7 +190,7 @@ static int magician_playback_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
- ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 1);
+ ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
if (ret < 0)
return ret;
@@ -447,34 +449,47 @@ static struct snd_soc_card snd_soc_card_magician = {
.platform = &pxa2xx_soc_platform,
};
-/* magician audio private data */
-static struct uda1380_setup_data magician_uda1380_setup = {
- .i2c_address = 0x18,
- .dac_clk = UDA1380_DAC_CLK_WSPLL,
-};
-
/* magician audio subsystem */
static struct snd_soc_device magician_snd_devdata = {
.card = &snd_soc_card_magician,
.codec_dev = &soc_codec_dev_uda1380,
- .codec_data = &magician_uda1380_setup,
};
static struct platform_device *magician_snd_device;
+/*
+ * FIXME: move into magician board file once merged into the pxa tree
+ */
+static struct uda1380_platform_data uda1380_info = {
+ .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
+ .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
+ .dac_clk = UDA1380_DAC_CLK_WSPLL,
+};
+
+static struct i2c_board_info i2c_board_info[] = {
+ {
+ I2C_BOARD_INFO("uda1380", 0x18),
+ .platform_data = &uda1380_info,
+ },
+};
+
static int __init magician_init(void)
{
int ret;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
if (!machine_is_magician())
return -ENODEV;
- ret = gpio_request(EGPIO_MAGICIAN_CODEC_POWER, "CODEC_POWER");
- if (ret)
- goto err_request_power;
- ret = gpio_request(EGPIO_MAGICIAN_CODEC_RESET, "CODEC_RESET");
- if (ret)
- goto err_request_reset;
+ adapter = i2c_get_adapter(0);
+ if (!adapter)
+ return -ENODEV;
+ client = i2c_new_device(adapter, i2c_board_info);
+ i2c_put_adapter(adapter);
+ if (!client)
+ return -ENODEV;
+
ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
if (ret)
goto err_request_spk;
@@ -491,14 +506,8 @@ static int __init magician_init(void)
if (ret)
goto err_request_in_sel1;
- gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER, 1);
gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
- /* we may need to have the clock running here - pH5 */
- gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET, 1);
- udelay(5);
- gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET, 0);
-
magician_snd_device = platform_device_alloc("soc-audio", -1);
if (!magician_snd_device) {
ret = -ENOMEM;
@@ -526,10 +535,6 @@ err_request_mic:
err_request_ep:
gpio_free(EGPIO_MAGICIAN_SPK_POWER);
err_request_spk:
- gpio_free(EGPIO_MAGICIAN_CODEC_RESET);
-err_request_reset:
- gpio_free(EGPIO_MAGICIAN_CODEC_POWER);
-err_request_power:
return ret;
}
@@ -540,15 +545,12 @@ static void __exit magician_exit(void)
gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
- gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER, 0);
gpio_free(EGPIO_MAGICIAN_IN_SEL1);
gpio_free(EGPIO_MAGICIAN_IN_SEL0);
gpio_free(EGPIO_MAGICIAN_MIC_POWER);
gpio_free(EGPIO_MAGICIAN_EP_POWER);
gpio_free(EGPIO_MAGICIAN_SPK_POWER);
- gpio_free(EGPIO_MAGICIAN_CODEC_RESET);
- gpio_free(EGPIO_MAGICIAN_CODEC_POWER);
}
module_init(magician_init);
diff --git a/sound/soc/pxa/palm27x.c b/sound/soc/pxa/palm27x.c
index e6102fda0a7f..1f96e3227be5 100644
--- a/sound/soc/pxa/palm27x.c
+++ b/sound/soc/pxa/palm27x.c
@@ -17,13 +17,12 @@
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/gpio.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
+#include <sound/jack.h>
#include <asm/mach-types.h>
#include <mach/audio.h>
@@ -33,90 +32,31 @@
#include "pxa2xx-pcm.h"
#include "pxa2xx-ac97.h"
-static int palm27x_jack_func = 1;
-static int palm27x_spk_func = 1;
-static int palm27x_ep_gpio = -1;
+static struct snd_soc_jack hs_jack;
-static void palm27x_ext_control(struct snd_soc_codec *codec)
-{
- if (!palm27x_spk_func)
- snd_soc_dapm_enable_pin(codec, "Speaker");
- else
- snd_soc_dapm_disable_pin(codec, "Speaker");
-
- if (!palm27x_jack_func)
- snd_soc_dapm_enable_pin(codec, "Headphone Jack");
- else
- snd_soc_dapm_disable_pin(codec, "Headphone Jack");
-
- snd_soc_dapm_sync(codec);
-}
-
-static int palm27x_startup(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_codec *codec = rtd->socdev->card->codec;
-
- /* check the jack status at stream startup */
- palm27x_ext_control(codec);
- return 0;
-}
-
-static struct snd_soc_ops palm27x_ops = {
- .startup = palm27x_startup,
+/* Headphones jack detection DAPM pins */
+static struct snd_soc_jack_pin hs_jack_pins[] = {
+ {
+ .pin = "Headphone Jack",
+ .mask = SND_JACK_HEADPHONE,
+ },
};
-static irqreturn_t palm27x_interrupt(int irq, void *v)
-{
- palm27x_spk_func = gpio_get_value(palm27x_ep_gpio);
- palm27x_jack_func = !palm27x_spk_func;
- return IRQ_HANDLED;
-}
-
-static int palm27x_get_jack(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = palm27x_jack_func;
- return 0;
-}
-
-static int palm27x_set_jack(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-
- if (palm27x_jack_func == ucontrol->value.integer.value[0])
- return 0;
-
- palm27x_jack_func = ucontrol->value.integer.value[0];
- palm27x_ext_control(codec);
- return 1;
-}
-
-static int palm27x_get_spk(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = palm27x_spk_func;
- return 0;
-}
-
-static int palm27x_set_spk(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-
- if (palm27x_spk_func == ucontrol->value.integer.value[0])
- return 0;
-
- palm27x_spk_func = ucontrol->value.integer.value[0];
- palm27x_ext_control(codec);
- return 1;
-}
+/* Headphones jack detection gpios */
+static struct snd_soc_jack_gpio hs_jack_gpios[] = {
+ [0] = {
+ /* gpio is set on per-platform basis */
+ .name = "hp-gpio",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 200,
+ },
+};
-/* PalmTX machine dapm widgets */
+/* Palm27x machine dapm widgets */
static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
+ SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
};
/* PalmTX audio map */
@@ -126,46 +66,66 @@ static const struct snd_soc_dapm_route audio_map[] = {
{"Headphone Jack", NULL, "HPOUTR"},
/* ext speaker connected to ROUT2, LOUT2 */
- {"Speaker", NULL, "LOUT2"},
- {"Speaker", NULL, "ROUT2"},
-};
+ {"Ext. Speaker", NULL, "LOUT2"},
+ {"Ext. Speaker", NULL, "ROUT2"},
-static const char *jack_function[] = {"Headphone", "Off"};
-static const char *spk_function[] = {"On", "Off"};
-static const struct soc_enum palm27x_enum[] = {
- SOC_ENUM_SINGLE_EXT(2, jack_function),
- SOC_ENUM_SINGLE_EXT(2, spk_function),
+ /* mic connected to MIC1 */
+ {"Ext. Microphone", NULL, "MIC1"},
};
-static const struct snd_kcontrol_new palm27x_controls[] = {
- SOC_ENUM_EXT("Jack Function", palm27x_enum[0], palm27x_get_jack,
- palm27x_set_jack),
- SOC_ENUM_EXT("Speaker Function", palm27x_enum[1], palm27x_get_spk,
- palm27x_set_spk),
-};
+static struct snd_soc_card palm27x_asoc;
static int palm27x_ac97_init(struct snd_soc_codec *codec)
{
int err;
+ /* add palm27x specific widgets */
+ err = snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets,
+ ARRAY_SIZE(palm27x_dapm_widgets));
+ if (err)
+ return err;
+
+ /* set up palm27x specific audio path audio_map */
+ err = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+ if (err)
+ return err;
+
+ /* connected pins */
+ if (machine_is_palmld())
+ snd_soc_dapm_enable_pin(codec, "MIC1");
+ snd_soc_dapm_enable_pin(codec, "HPOUTL");
+ snd_soc_dapm_enable_pin(codec, "HPOUTR");
+ snd_soc_dapm_enable_pin(codec, "LOUT2");
+ snd_soc_dapm_enable_pin(codec, "ROUT2");
+
+ /* not connected pins */
snd_soc_dapm_nc_pin(codec, "OUT3");
snd_soc_dapm_nc_pin(codec, "MONOOUT");
+ snd_soc_dapm_nc_pin(codec, "LINEINL");
+ snd_soc_dapm_nc_pin(codec, "LINEINR");
+ snd_soc_dapm_nc_pin(codec, "PCBEEP");
+ snd_soc_dapm_nc_pin(codec, "PHONE");
+ snd_soc_dapm_nc_pin(codec, "MIC2");
+
+ err = snd_soc_dapm_sync(codec);
+ if (err)
+ return err;
- /* add palm27x specific controls */
- err = snd_soc_add_controls(codec, palm27x_controls,
- ARRAY_SIZE(palm27x_controls));
- if (err < 0)
+ /* Jack detection API stuff */
+ err = snd_soc_jack_new(&palm27x_asoc, "Headphone Jack",
+ SND_JACK_HEADPHONE, &hs_jack);
+ if (err)
return err;
- /* add palm27x specific widgets */
- snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets,
- ARRAY_SIZE(palm27x_dapm_widgets));
+ err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
+ hs_jack_pins);
+ if (err)
+ return err;
- /* set up palm27x specific audio path audio_map */
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+ err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
+ hs_jack_gpios);
- snd_soc_dapm_sync(codec);
- return 0;
+ return err;
}
static struct snd_soc_dai_link palm27x_dai[] = {
@@ -175,14 +135,12 @@ static struct snd_soc_dai_link palm27x_dai[] = {
.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
.codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
.init = palm27x_ac97_init,
- .ops = &palm27x_ops,
},
{
.name = "AC97 Aux",
.stream_name = "AC97 Aux",
.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
.codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
- .ops = &palm27x_ops,
},
};
@@ -208,27 +166,17 @@ static int palm27x_asoc_probe(struct platform_device *pdev)
machine_is_palmld() || machine_is_palmte2()))
return -ENODEV;
- if (pdev->dev.platform_data)
- palm27x_ep_gpio = ((struct palm27x_asoc_info *)
- (pdev->dev.platform_data))->jack_gpio;
-
- ret = gpio_request(palm27x_ep_gpio, "Headphone Jack");
- if (ret)
- return ret;
- ret = gpio_direction_input(palm27x_ep_gpio);
- if (ret)
- goto err_alloc;
+ if (!pdev->dev.platform_data) {
+ dev_err(&pdev->dev, "please supply platform_data\n");
+ return -ENODEV;
+ }
- if (request_irq(gpio_to_irq(palm27x_ep_gpio), palm27x_interrupt,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
- "Headphone jack", NULL))
- goto err_alloc;
+ hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
+ (pdev->dev.platform_data))->jack_gpio;
palm27x_snd_device = platform_device_alloc("soc-audio", -1);
- if (!palm27x_snd_device) {
- ret = -ENOMEM;
- goto err_dev;
- }
+ if (!palm27x_snd_device)
+ return -ENOMEM;
platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata);
palm27x_snd_devdata.dev = &palm27x_snd_device->dev;
@@ -241,18 +189,12 @@ static int palm27x_asoc_probe(struct platform_device *pdev)
put_device:
platform_device_put(palm27x_snd_device);
-err_dev:
- free_irq(gpio_to_irq(palm27x_ep_gpio), NULL);
-err_alloc:
- gpio_free(palm27x_ep_gpio);
return ret;
}
static int __devexit palm27x_asoc_remove(struct platform_device *pdev)
{
- free_irq(gpio_to_irq(palm27x_ep_gpio), NULL);
- gpio_free(palm27x_ep_gpio);
platform_device_unregister(palm27x_snd_device);
return 0;
}
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 19c45409d94c..d11a6d7e384a 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -351,7 +351,7 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai,
do_div(tmp, freq_out);
val = tmp;
- val = (val << 16) | 64;;
+ val = (val << 16) | 64;
ssp_write_reg(ssp, SSACDD, val);
ssacd |= (0x6 << 4);
@@ -375,21 +375,34 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai,
* Set the active slots in TDM/Network mode
*/
static int pxa_ssp_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
- unsigned int mask, int slots)
+ unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
u32 sscr0;
- sscr0 = ssp_read_reg(ssp, SSCR0) & ~SSCR0_SlotsPerFrm(7);
+ sscr0 = ssp_read_reg(ssp, SSCR0);
+ sscr0 &= ~(SSCR0_MOD | SSCR0_SlotsPerFrm(8) | SSCR0_EDSS | SSCR0_DSS);
+
+ /* set slot width */
+ if (slot_width > 16)
+ sscr0 |= SSCR0_EDSS | SSCR0_DataSize(slot_width - 16);
+ else
+ sscr0 |= SSCR0_DataSize(slot_width);
+
+ if (slots > 1) {
+ /* enable network mode */
+ sscr0 |= SSCR0_MOD;
- /* set number of active slots */
- sscr0 |= SSCR0_SlotsPerFrm(slots);
+ /* set number of active slots */
+ sscr0 |= SSCR0_SlotsPerFrm(slots);
+
+ /* set active slot mask */
+ ssp_write_reg(ssp, SSTSA, tx_mask);
+ ssp_write_reg(ssp, SSRSA, rx_mask);
+ }
ssp_write_reg(ssp, SSCR0, sscr0);
- /* set active slot mask */
- ssp_write_reg(ssp, SSTSA, mask);
- ssp_write_reg(ssp, SSRSA, mask);
return 0;
}
@@ -457,31 +470,27 @@ static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
return -EINVAL;
}
- ssp_write_reg(ssp, SSCR0, sscr0);
- ssp_write_reg(ssp, SSCR1, sscr1);
- ssp_write_reg(ssp, SSPSP, sspsp);
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ sspsp |= SSPSP_SFRMP;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ sspsp |= SSPSP_SCMODE(2);
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP;
+ break;
+ default:
+ return -EINVAL;
+ }
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
sscr0 |= SSCR0_PSP;
sscr1 |= SSCR1_RWOT | SSCR1_TRAIL;
-
/* See hw_params() */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- sspsp |= SSPSP_SFRMP;
- break;
- case SND_SOC_DAIFMT_NB_IF:
- break;
- case SND_SOC_DAIFMT_IB_IF:
- sspsp |= SSPSP_SCMODE(2);
- break;
- case SND_SOC_DAIFMT_IB_NF:
- sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP;
- break;
- default:
- return -EINVAL;
- }
break;
case SND_SOC_DAIFMT_DSP_A:
@@ -489,22 +498,6 @@ static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
case SND_SOC_DAIFMT_DSP_B:
sscr0 |= SSCR0_MOD | SSCR0_PSP;
sscr1 |= SSCR1_TRAIL | SSCR1_RWOT;
-
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- sspsp |= SSPSP_SFRMP;
- break;
- case SND_SOC_DAIFMT_NB_IF:
- break;
- case SND_SOC_DAIFMT_IB_IF:
- sspsp |= SSPSP_SCMODE(2);
- break;
- case SND_SOC_DAIFMT_IB_NF:
- sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP;
- break;
- default:
- return -EINVAL;
- }
break;
default:
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index d9c94d71fa61..e9ae7b3a7e00 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -22,6 +22,7 @@
#include <mach/hardware.h>
#include <mach/regs-ac97.h>
#include <mach/dma.h>
+#include <mach/audio.h>
#include "pxa2xx-pcm.h"
#include "pxa2xx-ac97.h"
@@ -241,9 +242,18 @@ EXPORT_SYMBOL_GPL(soc_ac97_ops);
static int __devinit pxa2xx_ac97_dev_probe(struct platform_device *pdev)
{
int i;
+ pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
- for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++)
+ if (pdev->id >= 0) {
+ dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
+ return -ENXIO;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++) {
pxa_ac97_dai[i].dev = &pdev->dev;
+ if (pdata && pdata->codec_pdata[0])
+ pxa_ac97_dai[i].ac97_pdata = pdata->codec_pdata[0];
+ }
/* Punt most of the init to the SoC probe; we may need the machine
* driver to do interesting things with the clocking to get us up
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 4743e262895d..6b8f655d1ad8 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -167,6 +167,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
BUG_ON(IS_ERR(clk_i2s));
clk_enable(clk_i2s);
+ dai->private_data = dai;
pxa_i2s_wait();
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -255,7 +256,10 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
if ((SACR1 & (SACR1_DREC | SACR1_DRPL)) == (SACR1_DREC | SACR1_DRPL)) {
SACR0 &= ~SACR0_ENB;
pxa_i2s_wait();
- clk_disable(clk_i2s);
+ if (dai->private_data != NULL) {
+ clk_disable(clk_i2s);
+ dai->private_data = NULL;
+ }
}
}
@@ -336,6 +340,7 @@ static int pxa2xx_i2s_probe(struct platform_device *dev)
return PTR_ERR(clk_i2s);
pxa_i2s_dai.dev = &dev->dev;
+ pxa_i2s_dai.private_data = NULL;
ret = snd_soc_register_dai(&pxa_i2s_dai);
if (ret != 0)
clk_put(clk_i2s);