diff options
Diffstat (limited to 'sound/soc/codecs/wm8960.c')
| -rw-r--r-- | sound/soc/codecs/wm8960.c | 40 |
1 files changed, 29 insertions, 11 deletions
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c index 499604f1e178..0d167238a369 100644 --- a/sound/soc/codecs/wm8960.c +++ b/sound/soc/codecs/wm8960.c @@ -14,6 +14,7 @@ #include <linux/pm.h> #include <linux/clk.h> #include <linux/i2c.h> +#include <linux/acpi.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> @@ -45,6 +46,8 @@ #define WM8960_DISOP 0x40 #define WM8960_DRES_MASK 0x30 +#define WM8960_DSCH_TOUT 600 /* discharge timeout, ms */ + static bool is_pll_freq_available(unsigned int source, unsigned int target); static int wm8960_set_pll(struct snd_soc_component *component, unsigned int freq_in, unsigned int freq_out); @@ -133,6 +136,7 @@ struct wm8960_priv { int freq_in; bool is_stream_in_use[2]; struct wm8960_data pdata; + ktime_t dsch_start; }; #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0) @@ -898,6 +902,7 @@ static int wm8960_set_bias_level_out3(struct snd_soc_component *component, struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component); u16 pm2 = snd_soc_component_read(component, WM8960_POWER2); int ret; + ktime_t tout; switch (level) { case SND_SOC_BIAS_ON: @@ -944,6 +949,11 @@ static int wm8960_set_bias_level_out3(struct snd_soc_component *component, case SND_SOC_BIAS_STANDBY: if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { + /* ensure discharge is complete */ + tout = WM8960_DSCH_TOUT - ktime_ms_delta(ktime_get(), wm8960->dsch_start); + if (tout > 0) + msleep(tout); + regcache_sync(wm8960->regmap); /* Enable anti-pop features */ @@ -973,9 +983,9 @@ static int wm8960_set_bias_level_out3(struct snd_soc_component *component, WM8960_POBCTRL | WM8960_SOFT_ST | WM8960_BUFDCOPEN | WM8960_BUFIOEN); - /* Disable VMID and VREF, let them discharge */ + /* Disable VMID and VREF, mark discharge */ snd_soc_component_write(component, WM8960_POWER1, 0); - msleep(600); + wm8960->dsch_start = ktime_get(); break; } @@ -1368,7 +1378,6 @@ static const struct snd_soc_component_driver soc_component_dev_wm8960 = { .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, - .non_legacy_dai_naming = 1, }; static const struct regmap_config wm8960_regmap = { @@ -1401,8 +1410,7 @@ static void wm8960_set_pdata_from_of(struct i2c_client *i2c, ARRAY_SIZE(pdata->hp_cfg)); } -static int wm8960_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static int wm8960_i2c_probe(struct i2c_client *i2c) { struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); struct wm8960_priv *wm8960; @@ -1478,10 +1486,8 @@ static int wm8960_i2c_probe(struct i2c_client *i2c, return ret; } -static int wm8960_i2c_remove(struct i2c_client *client) -{ - return 0; -} +static void wm8960_i2c_remove(struct i2c_client *client) +{} static const struct i2c_device_id wm8960_i2c_id[] = { { "wm8960", 0 }, @@ -1489,18 +1495,30 @@ static const struct i2c_device_id wm8960_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); +#if defined(CONFIG_OF) static const struct of_device_id wm8960_of_match[] = { { .compatible = "wlf,wm8960", }, { } }; MODULE_DEVICE_TABLE(of, wm8960_of_match); +#endif + +#if defined(CONFIG_ACPI) +static const struct acpi_device_id wm8960_acpi_match[] = { + { "1AEC8960", 0 }, /* Wolfson PCI ID + part ID */ + { "10138960", 0 }, /* Cirrus Logic PCI ID + part ID */ + { }, +}; +MODULE_DEVICE_TABLE(acpi, wm8960_acpi_match); +#endif static struct i2c_driver wm8960_i2c_driver = { .driver = { .name = "wm8960", - .of_match_table = wm8960_of_match, + .of_match_table = of_match_ptr(wm8960_of_match), + .acpi_match_table = ACPI_PTR(wm8960_acpi_match), }, - .probe = wm8960_i2c_probe, + .probe_new = wm8960_i2c_probe, .remove = wm8960_i2c_remove, .id_table = wm8960_i2c_id, }; |