diff options
Diffstat (limited to 'sound/soc/codecs/tas2764.c')
| -rw-r--r-- | sound/soc/codecs/tas2764.c | 139 |
1 files changed, 135 insertions, 4 deletions
diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c index 08aa7ee34256..36e25e48b354 100644 --- a/sound/soc/codecs/tas2764.c +++ b/sound/soc/codecs/tas2764.c @@ -8,6 +8,7 @@ #include <linux/err.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/hwmon.h> #include <linux/pm.h> #include <linux/i2c.h> #include <linux/gpio/consumer.h> @@ -45,6 +46,8 @@ struct tas2764_priv { bool unmuted; }; +#include "tas2764-quirks.h" + static const char *tas2764_int_ltch0_msgs[8] = { "fault: over temperature", /* INT_LTCH0 & BIT(0) */ "fault: over current", @@ -122,6 +125,9 @@ static int tas2764_update_pwr_ctrl(struct tas2764_priv *tas2764) else val = TAS2764_PWR_CTRL_SHUTDOWN; + if (ENABLED_APPLE_QUIRKS & TAS2764_SHUTDOWN_DANCE) + return tas2764_do_quirky_pwr_ctrl_change(tas2764, val); + ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, TAS2764_PWR_CTRL_MASK, val); if (ret < 0) @@ -546,6 +552,106 @@ static uint8_t sn012776_bop_presets[] = { 0x06, 0x3e, 0x37, 0x30, 0xff, 0xe6 }; +static const struct regmap_config tas2764_i2c_regmap; + +static int tas2764_apply_init_quirks(struct tas2764_priv *tas2764) +{ + int ret, i; + + for (i = 0; i < ARRAY_SIZE(tas2764_quirk_init_sequences); i++) { + const struct tas2764_quirk_init_sequence *init_seq = + &tas2764_quirk_init_sequences[i]; + + if (!init_seq->seq) + continue; + + if (!(BIT(i) & ENABLED_APPLE_QUIRKS)) + continue; + + ret = regmap_multi_reg_write(tas2764->regmap, init_seq->seq, + init_seq->len); + + if (ret < 0) + return ret; + } + + return 0; +} + +static int tas2764_read_die_temp(struct tas2764_priv *tas2764, long *result) +{ + int ret, reg; + + ret = regmap_read(tas2764->regmap, TAS2764_TEMP, ®); + if (ret) + return ret; + /* + * As per datasheet, subtract 93 from raw value to get degrees + * Celsius. hwmon wants millidegrees. + * + * NOTE: The chip will initialise the TAS2764_TEMP register to + * 2.6 *C to avoid triggering temperature protection. Since the + * ADC is powered down during software shutdown, this value will + * persist until the chip is fully powered up (e.g. the PCM it's + * attached to is opened). The ADC will power down again when + * the chip is put back into software shutdown, with the last + * value sampled persisting in the ADC's register. + */ + *result = (reg - 93) * 1000; + return 0; +} + +static umode_t tas2764_hwmon_is_visible(const void *data, + enum hwmon_sensor_types type, u32 attr, + int channel) +{ + if (type != hwmon_temp) + return 0; + + switch (attr) { + case hwmon_temp_input: + return 0444; + default: + break; + } + + return 0; +} + +static int tas2764_hwmon_read(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct tas2764_priv *tas2764 = dev_get_drvdata(dev); + int ret; + + switch (attr) { + case hwmon_temp_input: + ret = tas2764_read_die_temp(tas2764, val); + break; + default: + ret = -EOPNOTSUPP; + break; + } + + return ret; +} + +static const struct hwmon_channel_info *const tas2764_hwmon_info[] = { + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + NULL +}; + +static const struct hwmon_ops tas2764_hwmon_ops = { + .is_visible = tas2764_hwmon_is_visible, + .read = tas2764_hwmon_read, +}; + +static const struct hwmon_chip_info tas2764_hwmon_chip_info = { + .ops = &tas2764_hwmon_ops, + .info = tas2764_hwmon_info, +}; + static int tas2764_codec_probe(struct snd_soc_component *component) { struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); @@ -559,9 +665,10 @@ static int tas2764_codec_probe(struct snd_soc_component *component) } tas2764_reset(tas2764); + regmap_reinit_cache(tas2764->regmap, &tas2764_i2c_regmap); if (tas2764->irq) { - ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK0, 0xff); + ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK0, 0x00); if (ret < 0) return ret; @@ -614,6 +721,13 @@ static int tas2764_codec_probe(struct snd_soc_component *component) if (ret < 0) return ret; } + + /* Apply all enabled Apple quirks */ + ret = tas2764_apply_init_quirks(tas2764); + + if (ret < 0) + return ret; + break; default: break; @@ -682,7 +796,7 @@ static const struct reg_default tas2764_reg_defaults[] = { static const struct regmap_range_cfg tas2764_regmap_ranges[] = { { .range_min = 0, - .range_max = 1 * 128, + .range_max = 0xffff, .selector_reg = TAS2764_PAGE, .selector_mask = 0xff, .selector_shift = 0, @@ -698,6 +812,9 @@ static bool tas2764_volatile_register(struct device *dev, unsigned int reg) case TAS2764_INT_LTCH0 ... TAS2764_INT_LTCH4: case TAS2764_INT_CLK_CFG: return true; + case TAS2764_REG(0xf0, 0x0) ... TAS2764_REG(0xff, 0x0): + /* TI's undocumented registers for the application of quirks */ + return true; default: return false; } @@ -712,7 +829,7 @@ static const struct regmap_config tas2764_i2c_regmap = { .cache_type = REGCACHE_RBTREE, .ranges = tas2764_regmap_ranges, .num_ranges = ARRAY_SIZE(tas2764_regmap_ranges), - .max_register = 1 * 128, + .max_register = 0xffff, }; static int tas2764_parse_dt(struct device *dev, struct tas2764_priv *tas2764) @@ -759,7 +876,7 @@ static int tas2764_i2c_probe(struct i2c_client *client) if (!tas2764) return -ENOMEM; - tas2764->devid = (enum tas2764_devid)of_device_get_match_data(&client->dev); + tas2764->devid = (kernel_ulong_t)of_device_get_match_data(&client->dev); tas2764->dev = &client->dev; tas2764->irq = client->irq; @@ -783,6 +900,20 @@ static int tas2764_i2c_probe(struct i2c_client *client) } } + if (IS_REACHABLE(CONFIG_HWMON)) { + struct device *hwmon; + + hwmon = devm_hwmon_device_register_with_info(&client->dev, "tas2764", + tas2764, + &tas2764_hwmon_chip_info, + NULL); + if (IS_ERR(hwmon)) { + return dev_err_probe(&client->dev, PTR_ERR(hwmon), + "Failed to register temp sensor\n"); + } + } + + return devm_snd_soc_register_component(tas2764->dev, &soc_component_driver_tas2764, tas2764_dai_driver, |