diff options
Diffstat (limited to 'sound/soc/codecs/cs42l52.c')
| -rw-r--r-- | sound/soc/codecs/cs42l52.c | 112 |
1 files changed, 61 insertions, 51 deletions
diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c index cd3f92c19045..a9ffba62aaf8 100644 --- a/sound/soc/codecs/cs42l52.c +++ b/sound/soc/codecs/cs42l52.c @@ -8,27 +8,26 @@ * Author: Brian Austin <brian.austin@cirrus.com> */ -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/init.h> #include <linux/delay.h> -#include <linux/of_gpio.h> -#include <linux/pm.h> +#include <linux/gpio/consumer.h> #include <linux/i2c.h> +#include <linux/init.h> #include <linux/input.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/pm.h> +#include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/workqueue.h> -#include <linux/platform_device.h> #include <sound/core.h> +#include <sound/initval.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dapm.h> -#include <sound/initval.h> #include <sound/tlv.h> -#include <sound/cs42l52.h> #include "cs42l52.h" struct sp_config { @@ -36,6 +35,24 @@ struct sp_config { u32 srate; }; +struct cs42l52_platform_data { + + /* MICBIAS Level. Check datasheet Pg48 */ + unsigned int micbias_lvl; + + /* MICA mode selection Differential or Single-ended */ + bool mica_diff_cfg; + + /* MICB mode selection Differential or Single-ended */ + bool micb_diff_cfg; + + /* Charge Pump Freq. Check datasheet Pg73 */ + unsigned int chgfreq; + + /* Reset GPIO */ + struct gpio_desc *reset_gpio; +}; + struct cs42l52_private { struct regmap *regmap; struct snd_soc_component *component; @@ -1090,7 +1107,7 @@ static const struct regmap_config cs42l52_regmap = { static int cs42l52_i2c_probe(struct i2c_client *i2c_client) { struct cs42l52_private *cs42l52; - struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev); + struct cs42l52_platform_data *pdata; int ret; unsigned int devid; unsigned int reg; @@ -1107,50 +1124,43 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client) dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); return ret; } - if (pdata) { - cs42l52->pdata = *pdata; - } else { - pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata), - GFP_KERNEL); - if (!pdata) - return -ENOMEM; - - if (i2c_client->dev.of_node) { - if (of_property_read_bool(i2c_client->dev.of_node, - "cirrus,mica-differential-cfg")) - pdata->mica_diff_cfg = true; - - if (of_property_read_bool(i2c_client->dev.of_node, - "cirrus,micb-differential-cfg")) - pdata->micb_diff_cfg = true; - - if (of_property_read_u32(i2c_client->dev.of_node, - "cirrus,micbias-lvl", &val32) >= 0) - pdata->micbias_lvl = val32; - - if (of_property_read_u32(i2c_client->dev.of_node, - "cirrus,chgfreq-divisor", &val32) >= 0) - pdata->chgfreq = val32; - - pdata->reset_gpio = - of_get_named_gpio(i2c_client->dev.of_node, - "cirrus,reset-gpio", 0); - } - cs42l52->pdata = *pdata; + + pdata = devm_kzalloc(&i2c_client->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + if (i2c_client->dev.of_node) { + if (of_property_read_bool(i2c_client->dev.of_node, + "cirrus,mica-differential-cfg")) + pdata->mica_diff_cfg = true; + + if (of_property_read_bool(i2c_client->dev.of_node, + "cirrus,micb-differential-cfg")) + pdata->micb_diff_cfg = true; + + if (of_property_read_u32(i2c_client->dev.of_node, + "cirrus,micbias-lvl", &val32) >= 0) + pdata->micbias_lvl = val32; + + if (of_property_read_u32(i2c_client->dev.of_node, + "cirrus,chgfreq-divisor", &val32) >= 0) + pdata->chgfreq = val32; + + pdata->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, + "cirrus,reset", + GPIOD_OUT_LOW); + + if (IS_ERR(pdata->reset_gpio)) + return PTR_ERR(pdata->reset_gpio); + + gpiod_set_consumer_name(pdata->reset_gpio, "CS42L52 /RST"); } + cs42l52->pdata = *pdata; + if (cs42l52->pdata.reset_gpio) { - ret = devm_gpio_request_one(&i2c_client->dev, - cs42l52->pdata.reset_gpio, - GPIOF_OUT_INIT_HIGH, - "CS42L52 /RST"); - if (ret < 0) { - dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", - cs42l52->pdata.reset_gpio, ret); - return ret; - } - gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0); - gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1); + gpiod_set_value_cansleep(cs42l52->pdata.reset_gpio, 1); + gpiod_set_value_cansleep(cs42l52->pdata.reset_gpio, 0); } i2c_set_clientdata(i2c_client, cs42l52); |