Hello.

I would like to contribute to alsa development. As a first step, I have made changes for caching control devices in ucm.

Please review the following changes and let me know if I can check in the changes and how to check in?

----------------------

diff --git a/src/ucm/main.c b/src/ucm/main.c index 030c9b1..3219778 100644 --- a/src/ucm/main.c +++ b/src/ucm/main.c @@ -131,31 +131,33 @@ static int open_ctl(snd_use_case_mgr_t *uc_mgr,              const char *ctl_dev)  {      int err; +    struct list_head *pos; +    struct snd_ctl_list *snd_ctl;   -    /* FIXME: add a list of ctl devices to uc_mgr structure and -           cache accesses for multiple opened ctl devices */ -    if (uc_mgr->ctl_dev != NULL && strcmp(ctl_dev, uc_mgr->ctl_dev) == 0) { -        *ctl = uc_mgr->ctl; -        return 0; -    } -    if (uc_mgr->ctl_dev) { -        free(uc_mgr->ctl_dev); -        uc_mgr->ctl_dev = NULL; -        snd_ctl_close(uc_mgr->ctl); -    +    list_for_each(pos, &uc_mgr->ctl_list) { +        snd_ctl = list_entry(pos, struct snd_ctl_list, list); +        if(!snd_ctl) +            break; +        if(!strcmp(snd_ctl->ctl_dev, ctl_dev)) { +            *ctl = snd_ctl->ctl; +            return 0; +        }      }      err = snd_ctl_open(ctl, ctl_dev, 0);      if (err < 0)          return err; -    uc_mgr->ctl_dev = strdup(ctl_dev); -    if (uc_mgr->ctl_dev == NULL) { -        snd_ctl_close(*ctl); -        return -ENOMEM; -    } -    uc_mgr->ctl = *ctl; + +    if (*ctl) { +        snd_ctl = malloc(sizeof(struct snd_ctl_list)); +        snd_ctl->ctl_dev = strdup(ctl_dev); +        snd_ctl->ctl = *ctl; +        list_add_tail(&snd_ctl->list, &uc_mgr->ctl_list); +    } +      return 0;  }   +  static int execute_cset(snd_ctl_t *ctl, char *cset)  {      char *pos; @@ -622,6 +624,7 @@ int snd_use_case_mgr_open(snd_use_case_mgr_t **mgr,      INIT_LIST_HEAD(&uc_mgr->value_list);      INIT_LIST_HEAD(&uc_mgr->active_modifiers);      INIT_LIST_HEAD(&uc_mgr->active_devices); +    INIT_LIST_HEAD(&uc_mgr->ctl_list);      pthread_mutex_init(&uc_mgr->mutex, NULL);        uc_mgr->card_name = strdup(card_name); diff --git a/src/ucm/ucm_local.h b/src/ucm/ucm_local.h index 13e82da..86a51c7 100644 --- a/src/ucm/ucm_local.h +++ b/src/ucm/ucm_local.h @@ -82,6 +82,12 @@ struct dev_list {  };     +struct snd_ctl_list { +    snd_ctl_t *ctl; +    char *ctl_dev; +    struct list_head list; +}; +  /*   * Describes a Use Case Modifier and it's enable and disable sequences.   * A use case verb can have N modifiers. @@ -183,8 +189,8 @@ struct snd_use_case_mgr {      pthread_mutex_t mutex;        /* change to list of ctl handles */ -    snd_ctl_t *ctl; -    char *ctl_dev; +    +    struct list_head ctl_list;  };    #define uc_error SNDERR diff --git a/src/ucm/utils.c b/src/ucm/utils.c index 2def0b8..f18a2ac 100644 --- a/src/ucm/utils.c +++ b/src/ucm/utils.c @@ -99,6 +99,21 @@ void uc_mgr_free_value(struct list_head *base)      }  }   + +void uc_mgr_free_ctl(struct list_head *base) +{ +    struct list_head *pos, *npos; +    struct snd_ctl_list *ctl_list; +    +    list_for_each_safe(pos, npos, base) { +        ctl_list = list_entry(pos, struct snd_ctl_list, list); +        free(ctl_list->ctl_dev); +        snd_ctl_close(ctl_list->ctl); +        list_del(&ctl_list->list); +        free(ctl_list); +    } +} +  void uc_mgr_free_dev_list(struct list_head *base)  {      struct list_head *pos, *npos; @@ -220,12 +235,7 @@ void uc_mgr_free_verb(snd_use_case_mgr_t *uc_mgr)      uc_mgr->active_verb = NULL;      INIT_LIST_HEAD(&uc_mgr->active_devices);      INIT_LIST_HEAD(&uc_mgr->active_modifiers); -    if (uc_mgr->ctl != NULL) { -        snd_ctl_close(uc_mgr->ctl); -        uc_mgr->ctl = NULL; -    } -    free(uc_mgr->ctl_dev); -    uc_mgr->ctl_dev = NULL; +    uc_mgr_free_ctl(&uc_mgr->ctl_list);  }    void uc_mgr_free(snd_use_case_mgr_t *uc_mgr)

---------------------

Sajeesh

At Mon, 24 Jun 2013 19:09:33 +0200, Daniel Mack wrote:

On 23.06.2013 00:10, sajeesh sidharthan wrote:

...

Hello.

I would like to contribute to alsa development. As a first step, I have made changes for caching control devices in ucm.

Thank you for doing this.

...

Please review the following changes and let me know if I can check in the changes and how to check in?

First of all, please do not hijack an email thread by clicking on the 'reply' button and changing the subject line. An email contains internal references to other mails in the same thread that most email clients won't allow you to see or edit. Your email was hence hidden inside another thread, and most likely it was overlooked by the UCM maintainer.

Second, you should always Cc: the relevant maintainers in your emails. In this case, Liam and Takashi. I copied them now.

And third, please use 'git commit', 'git format-patch' and 'git send-email', which will format everything correctly for you. And note that you need to add a 'Signed-off-by:' line with your name and email address, as done in other patches.

I can't really comment on the actual patch. Let's hope Liam or Takashi can :)

Well, for that, I need to understand the exact goal of the patch; i.e. what it fixes or what it provides for which purpose. The patch description is as equally important as the code change in the patch itself.

So, please give a bit more detailed (but concise) patch description.

thanks,

Takashi

Daniel

...

---

diff --git a/src/ucm/main.c b/src/ucm/main.c index 030c9b1..3219778 100644 --- a/src/ucm/main.c +++ b/src/ucm/main.c @@ -131,31 +131,33 @@ static int open_ctl(snd_use_case_mgr_t *uc_mgr, const char *ctl_dev) { int err;

• struct list_head *pos;
• struct snd_ctl_list *snd_ctl;

• /* FIXME: add a list of ctl devices to uc_mgr structure and

•       cache accesses for multiple opened ctl devices */
  

• if (uc_mgr->ctl_dev != NULL && strcmp(ctl_dev, uc_mgr->ctl_dev) == 0) {

•    *ctl = uc_mgr->ctl;
  

•    return 0;
  

• }
• if (uc_mgr->ctl_dev) {

•    free(uc_mgr->ctl_dev);
  

•    uc_mgr->ctl_dev = NULL;
  

•    snd_ctl_close(uc_mgr->ctl);
  

• list_for_each(pos, &uc_mgr->ctl_list) {

•    snd_ctl = list_entry(pos, struct snd_ctl_list, list);
  

•    if(!snd_ctl)
  

•        break;
  

•    if(!strcmp(snd_ctl->ctl_dev, ctl_dev)) {
  

•        *ctl = snd_ctl->ctl;
  

•        return 0;
  

•    }
  

  } err = snd_ctl_open(ctl, ctl_dev, 0); if (err < 0) return err;

• uc_mgr->ctl_dev = strdup(ctl_dev);
• if (uc_mgr->ctl_dev == NULL) {

•    snd_ctl_close(*ctl);
  

•    return -ENOMEM;
  

• }
• uc_mgr->ctl = *ctl;

• if (*ctl) {

•    snd_ctl = malloc(sizeof(struct snd_ctl_list));
  

•    snd_ctl->ctl_dev = strdup(ctl_dev);
  

•    snd_ctl->ctl = *ctl;
  

•    list_add_tail(&snd_ctl->list, &uc_mgr->ctl_list);
  

• }
• return 0;

}

static int execute_cset(snd_ctl_t *ctl, char *cset) { char *pos; @@ -622,6 +624,7 @@ int snd_use_case_mgr_open(snd_use_case_mgr_t **mgr, INIT_LIST_HEAD(&uc_mgr->value_list); INIT_LIST_HEAD(&uc_mgr->active_modifiers); INIT_LIST_HEAD(&uc_mgr->active_devices);

• INIT_LIST_HEAD(&uc_mgr->ctl_list); pthread_mutex_init(&uc_mgr->mutex, NULL);

  uc_mgr->card_name = strdup(card_name);

diff --git a/src/ucm/ucm_local.h b/src/ucm/ucm_local.h index 13e82da..86a51c7 100644 --- a/src/ucm/ucm_local.h +++ b/src/ucm/ucm_local.h @@ -82,6 +82,12 @@ struct dev_list { };

+struct snd_ctl_list {

• snd_ctl_t *ctl;
• char *ctl_dev;
• struct list_head list;

+};

/*

• Describes a Use Case Modifier and it's enable and disable sequences.
• A use case verb can have N modifiers.

@@ -183,8 +189,8 @@ struct snd_use_case_mgr { pthread_mutex_t mutex;

 /* change to list of ctl handles */

• snd_ctl_t *ctl;
• char *ctl_dev;

• struct list_head ctl_list;

};

#define uc_error SNDERR diff --git a/src/ucm/utils.c b/src/ucm/utils.c index 2def0b8..f18a2ac 100644 --- a/src/ucm/utils.c +++ b/src/ucm/utils.c @@ -99,6 +99,21 @@ void uc_mgr_free_value(struct list_head *base) } }

+void uc_mgr_free_ctl(struct list_head *base) +{

• struct list_head *pos, *npos;
• struct snd_ctl_list *ctl_list;
• list_for_each_safe(pos, npos, base) {

•    ctl_list = list_entry(pos, struct snd_ctl_list, list);
  

•    free(ctl_list->ctl_dev);
  

•    snd_ctl_close(ctl_list->ctl);
  

•    list_del(&ctl_list->list);
  

•    free(ctl_list);
  

• }

+}

void uc_mgr_free_dev_list(struct list_head *base) { struct list_head *pos, *npos; @@ -220,12 +235,7 @@ void uc_mgr_free_verb(snd_use_case_mgr_t *uc_mgr) uc_mgr->active_verb = NULL; INIT_LIST_HEAD(&uc_mgr->active_devices); INIT_LIST_HEAD(&uc_mgr->active_modifiers);

• if (uc_mgr->ctl != NULL) {

•    snd_ctl_close(uc_mgr->ctl);
  

•    uc_mgr->ctl = NULL;
  

• }
• free(uc_mgr->ctl_dev);
• uc_mgr->ctl_dev = NULL;

• uc_mgr_free_ctl(&uc_mgr->ctl_list);

}

void uc_mgr_free(snd_use_case_mgr_t *uc_mgr)

---

Sajeesh _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

On 06/21/2013 09:54 AM, Daniel Mack wrote:

The hardware I/O has to be open-coded due to registers of unequal sizes. Other than that, the transition is straight forward.

Signed-off-by: Daniel Mack zonque@gmail.com

Acked-by: Lars-Peter Clausen lars@metafoo.de

Thanks.

---

sound/soc/codecs/adau1701.c | 120 +++++++++++++++++++++++++++++++------------- 1 file changed, 85 insertions(+), 35 deletions(-)

diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c index 6bc566f..c48f4c5 100644 --- a/sound/soc/codecs/adau1701.c +++ b/sound/soc/codecs/adau1701.c @@ -16,6 +16,7 @@ #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/of_device.h> +#include <linux/regmap.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -24,16 +25,16 @@ #include "sigmadsp.h" #include "adau1701.h"

-#define ADAU1701_DSPCTRL 0x1c -#define ADAU1701_SEROCTL 0x1e -#define ADAU1701_SERICTL 0x1f +#define ADAU1701_DSPCTRL 0x081c +#define ADAU1701_SEROCTL 0x081e +#define ADAU1701_SERICTL 0x081f

-#define ADAU1701_AUXNPOW 0x22 +#define ADAU1701_AUXNPOW 0x0822

-#define ADAU1701_OSCIPOW 0x26 -#define ADAU1701_DACSET 0x27 +#define ADAU1701_OSCIPOW 0x0826 +#define ADAU1701_DACSET 0x0827

-#define ADAU1701_NUM_REGS 0x28 +#define ADAU1701_MAX_REGISTER 0x0828

#define ADAU1701_DSPCTRL_CR (1 << 2) #define ADAU1701_DSPCTRL_DAM (1 << 3) @@ -95,6 +96,7 @@ struct adau1701 { unsigned int dai_fmt; unsigned int pll_clkdiv; unsigned int sysclk;

• struct regmap *regmap;

};

static const struct snd_kcontrol_new adau1701_controls[] = { @@ -126,7 +128,7 @@ static const struct snd_soc_dapm_route adau1701_dapm_routes[] = { { "ADC", NULL, "IN1" }, };

-static unsigned int adau1701_register_size(struct snd_soc_codec *codec, +static unsigned int adau1701_register_size(struct device *dev, unsigned int reg) { switch (reg) { @@ -140,33 +142,42 @@ static unsigned int adau1701_register_size(struct snd_soc_codec *codec, return 1; }

• dev_err(codec->dev, "Unsupported register address: %d\n", reg);

• dev_err(dev, "Unsupported register address: %d\n", reg); return 0;

}

-static int adau1701_write(struct snd_soc_codec *codec, unsigned int reg,

• unsigned int value)
  

+static bool adau1701_volatile_reg(struct device *dev, unsigned int reg) {

• switch (reg) {
• case ADAU1701_DACSET:

• return true;
  

• default:

• return false;
  

• }

+}

+static int adau1701_reg_write(void *context, unsigned int reg,

• 	      unsigned int value)
  

+{

• struct i2c_client *client = context; unsigned int i; unsigned int size; uint8_t buf[4]; int ret;

• size = adau1701_register_size(codec, reg);

• size = adau1701_register_size(&client->dev, reg); if (size == 0) return -EINVAL;

• snd_soc_cache_write(codec, reg, value);
• buf[0] = 0x08;
• buf[1] = reg;

• buf[0] = reg >> 8;

• buf[1] = reg & 0xff;

  for (i = size + 1; i >= 2; --i) { buf[i] = value; value >>= 8; }

• ret = i2c_master_send(to_i2c_client(codec->dev), buf, size + 2);

• ret = i2c_master_send(client, buf, size + 2); if (ret == size + 2) return 0; else if (ret < 0)

@@ -175,16 +186,45 @@ static int adau1701_write(struct snd_soc_codec *codec, unsigned int reg, return -EIO; }

-static unsigned int adau1701_read(struct snd_soc_codec *codec, unsigned int reg) +static int adau1701_reg_read(void *context, unsigned int reg,

• 	     unsigned int *value)
  

{

• unsigned int value;
• unsigned int ret;

• int ret;
• unsigned int i;
• unsigned int size;
• uint8_t send_buf[2], recv_buf[3];
• struct i2c_client *client = context;
• struct i2c_msg msgs[2];
• size = adau1701_register_size(&client->dev, reg);
• if (size == 0)

• return -EINVAL;
  
  

• ret = snd_soc_cache_read(codec, reg, &value);
• if (ret)

• send_buf[0] = reg >> 8;
• send_buf[1] = reg & 0xff;
• msgs[0].addr = client->addr;
• msgs[0].len = sizeof(send_buf);
• msgs[0].buf = send_buf;
• msgs[0].flags = 0;
• msgs[1].addr = client->addr;
• msgs[1].len = size;
• msgs[1].buf = recv_buf;
• msgs[1].flags = I2C_M_RD;
• ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
• if (ret < 0) return ret;
• else if (ret != ARRAY_SIZE(msgs))

• return -EIO;
  
  

• return value;

• *value = 0;
• for (i = 0; i < size; i++)

• *value |= recv_buf[i] << (i * 8);
  

• return 0;

}

static void adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv) @@ -224,6 +264,9 @@ static void adau1701_reset(struct snd_soc_codec *codec, unsigned int clkdiv) gpio_set_value(adau1701->gpio_nreset, 1); /* power-up time may be as long as 85ms */ mdelay(85);

• regcache_mark_dirty(adau1701->regmap);
• regcache_sync(adau1701->regmap);

}

static int adau1701_set_capture_pcm_format(struct snd_soc_codec *codec, @@ -406,8 +449,8 @@ static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,

adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;

• snd_soc_write(codec, ADAU1701_SERICTL, serictl);
• snd_soc_update_bits(codec, ADAU1701_SEROCTL,

• regmap_write(adau1701->regmap, ADAU1701_SERICTL, serictl);

• regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL, ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl);

  return 0;

@@ -522,8 +565,6 @@ static int adau1701_probe(struct snd_soc_codec *codec) struct i2c_client *client = to_i2c_client(codec->dev); struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);

• codec->control_data = to_i2c_client(codec->dev);
• /* initalize with pre-configured pll mode settings */ adau1701_reset(codec, adau1701->pll_clkdiv);

@@ -533,8 +574,8 @@ static int adau1701_probe(struct snd_soc_codec *codec) return ret; }

• snd_soc_write(codec, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
• snd_soc_write(codec, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);

• regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);

• regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);

  return 0;

} @@ -544,9 +585,6 @@ static struct snd_soc_codec_driver adau1701_codec_drv = { .set_bias_level = adau1701_set_bias_level, .idle_bias_off = true,

• .reg_cache_size = ADAU1701_NUM_REGS,
• .reg_word_size = sizeof(u16),
• .controls = adau1701_controls, .num_controls = ARRAY_SIZE(adau1701_controls), .dapm_widgets = adau1701_dapm_widgets,

@@ -554,12 +592,19 @@ static struct snd_soc_codec_driver adau1701_codec_drv = { .dapm_routes = adau1701_dapm_routes, .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes),

• .write = adau1701_write,
• .read = adau1701_read,
• .set_sysclk = adau1701_set_sysclk,

};

+static const struct regmap_config adau1701_regmap = {

• .reg_bits = 16,
• .val_bits = 32,
• .max_register = ADAU1701_MAX_REGISTER,
• .cache_type = REGCACHE_RBTREE,
• .volatile_reg = adau1701_volatile_reg,
• .reg_write = adau1701_reg_write,
• .reg_read = adau1701_reg_read,

+};

static int adau1701_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -573,6 +618,11 @@ static int adau1701_i2c_probe(struct i2c_client *client, if (!adau1701) return -ENOMEM;

• adau1701->regmap = devm_regmap_init(dev, NULL, client,

• 			    &adau1701_regmap);
  

• if (IS_ERR(adau1701->regmap))

• return PTR_ERR(adau1701->regmap);
  

• if (dev->of_node) { gpio_nreset = of_get_named_gpio(dev->of_node, "reset-gpio", 0); if (gpio_nreset < 0 && gpio_nreset != -ENOENT)

On 06/21/2013 09:54 AM, Daniel Mack wrote:

The ADAU1701 has 12 pins that can be configured depending on the system configuration. Allow settting the corresponding registers from DT.

Signed-off-by: Daniel Mack zonque@gmail.com

Acked-by: Lars-Peter Clausen lars@metafoo.de

Thanks.

---

.../devicetree/bindings/sound/adi,adau1701.txt | 6 +++++ sound/soc/codecs/adau1701.c | 29 ++++++++++++++++++++-- 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/adi,adau1701.txt b/Documentation/devicetree/bindings/sound/adi,adau1701.txt index 173ae06..8582a45 100644 --- a/Documentation/devicetree/bindings/sound/adi,adau1701.txt +++ b/Documentation/devicetree/bindings/sound/adi,adau1701.txt @@ -25,6 +25,10 @@ Optional properties: The state of the pins are set according to the configured clock divider on ASoC side before the firmware is loaded.

• • adi,pin-config: An array of 12 numerical values selecting one of the

• 	pin configurations as described in the datasheet,
  

• 	table 53. Note that the value of this property has
  

• 	to be prefixed with '/bits/ 8'.
  
  

Examples:

@@ -34,5 +38,7 @@ Examples: reg = <0x34>; reset-gpio = <&gpio 23 0>; adi,pll-mode-gpios = <&gpio 24 0 &gpio 25 0>;

• 	adi,pin-config = /bits/ 8 <0x4 0x7 0x5 0x5 0x4 0x4
  

•                                               0x4 0x4 0x4 0x4 0x4 0x4>;
  

  }; };

diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c index c48f4c5..95216c8 100644 --- a/sound/soc/codecs/adau1701.c +++ b/sound/soc/codecs/adau1701.c @@ -30,6 +30,9 @@ #define ADAU1701_SERICTL 0x081f

#define ADAU1701_AUXNPOW 0x0822 +#define ADAU1701_PINCONF_0 0x0820 +#define ADAU1701_PINCONF_1 0x0821 +#define ADAU1701_AUXNPOW 0x0822

#define ADAU1701_OSCIPOW 0x0826 #define ADAU1701_DACSET 0x0827 @@ -97,6 +100,7 @@ struct adau1701 { unsigned int pll_clkdiv; unsigned int sysclk; struct regmap *regmap;

• u8 pin_config[12];

};

static const struct snd_kcontrol_new adau1701_controls[] = { @@ -132,6 +136,9 @@ static unsigned int adau1701_register_size(struct device *dev, unsigned int reg) { switch (reg) {

• case ADAU1701_PINCONF_0:
• case ADAU1701_PINCONF_1:

• return 3;
  

  case ADAU1701_DSPCTRL: case ADAU1701_SEROCTL: case ADAU1701_AUXNPOW:

@@ -162,7 +169,7 @@ static int adau1701_reg_write(void *context, unsigned int reg, struct i2c_client *client = context; unsigned int i; unsigned int size;

• uint8_t buf[4];

• uint8_t buf[5]; int ret;

  size = adau1701_register_size(&client->dev, reg);

@@ -561,7 +568,8 @@ MODULE_DEVICE_TABLE(of, adau1701_dt_ids);

static int adau1701_probe(struct snd_soc_codec *codec) {

• int ret;

• int ret, i;
• unsigned int val; struct i2c_client *client = to_i2c_client(codec->dev); struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);

@@ -577,6 +585,19 @@ static int adau1701_probe(struct snd_soc_codec *codec) regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT); regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);

• /* set up pin config */
• val = 0;
• for (i = 0; i < 6; i++)

• val |= adau1701->pin_config[i] << (i * 4);
  

• regmap_write(adau1701->regmap, ADAU1701_PINCONF_0, val);
• val = 0;
• for (i = 0; i < 6; i++)

• val |= adau1701->pin_config[i + 6] << (i * 4);
  

• regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val);
• return 0;

}

@@ -640,6 +661,10 @@ static int adau1701_i2c_probe(struct i2c_client *client,

of_property_read_u32(dev->of_node, "adi,pll-clkdiv",
		     &adau1701->pll_clkdiv);

• of_property_read_u8_array(dev->of_node, "adi,pin-config",
  

• 			  adau1701->pin_config,
  

• 			  ARRAY_SIZE(adau1701->pin_config));
  

  }

  if (gpio_is_valid(gpio_nreset)) {