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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 15:41:41 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 15:41:41 -0700 |
commit | d0a3997c0c3f9351e24029349dee65dd1d9e8d84 (patch) | |
tree | 7a04fe282b0c7b329cd87cdb891f0f3879dc71a6 /sound/soc/codecs/wm8971.c | |
parent | Merge tag 'locks-v4.1-1' of git://git.samba.org/jlayton/linux (diff) | |
parent | ALSA: hda - set GET bit when adding a vendor verb to the codec regmap (diff) | |
download | linux-d0a3997c0c3f9351e24029349dee65dd1d9e8d84.tar.gz linux-d0a3997c0c3f9351e24029349dee65dd1d9e8d84.tar.bz2 linux-d0a3997c0c3f9351e24029349dee65dd1d9e8d84.zip |
Merge tag 'sound-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There have been major modernization with the standard bus: in ALSA
sequencer core and HD-audio. Also, HD-audio receives the regmap
support replacing the in-house cache register cache code. These
changes shouldn't impact the existing behavior, but rather
refactoring.
In addition, HD-audio got the code split to a core library part and
the "legacy" driver parts. This is a preliminary work for adapting
the upcoming ASoC HD-audio driver, and the whole transition is still
work in progress, likely finished in 4.1.
Along with them, there are many updates in ASoC area as usual, too:
lots of cleanups, Intel code shuffling, etc.
Here are some highlights:
ALSA core:
- PCM: the audio timestamp / wallclock enhancement
- PCM: fixes in DPCM management
- Fixes / cleanups of user-space control element management
- Sequencer: modernization using the standard bus
HD-audio:
- Modernization using the standard bus
- Regmap support
- Use standard runtime PM for codec power saving
- Widget-path based power-saving for IDT, VIA and Realtek codecs
- Reorganized sysfs entries for each codec object
- More Dell headset support
ASoC:
- Move of jack registration to the card level
- Lots of ASoC cleanups, mainly moving things from the CODEC level to
the card level
- Support for DAPM routes specified by both the machine driver and DT
- Continuing improvements to rcar
- pcm512x enhacements
- Intel platforms updates
- rt5670 updates / fixes
- New platforms / devices: some non-DSP Qualcomm platforms, Google's
Storm platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC
Misc:
- ice1724: Improved ESI W192M support
- emu10k1: Emu 1010 fixes/enhancement"
* tag 'sound-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (411 commits)
ALSA: hda - set GET bit when adding a vendor verb to the codec regmap
ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T450
ALSA: hda - Fix another race in runtime PM refcounting
ALSA: hda - Expose codec type sysfs
ALSA: ctl: fix to handle several elements added by one operation for userspace element
ASoC: Intel: fix array_size.cocci warnings
ASoC: n810: Automatically disconnect non-connected pins
ASoC: n810: Consistently pass the card DAPM context to n810_ext_control()
ASoC: davinci-evm: Use card DAPM context to access widgets
ASoC: mop500_ab8500: Use card DAPM context to access widgets
ASoC: wm1133-ev1: Use card DAPM context to access widgets
ASoC: atmel: Improve machine driver compile test coverage
ASoC: atmel: Add dependency to SND_SOC_I2C_AND_SPI where necessary
ALSA: control: Fix a typo of SNDRV_CTL_ELEM_ACCESS_TLV_* with SNDRV_CTL_TLV_OP_*
ALSA: usb-audio: Don't attempt to get Microsoft Lifecam Cinema sample rate
ASoC: rnsd: fix build regression without CONFIG_OF
ALSA: emu10k1: add toggles for E-mu 1010 optical ports
ALSA: ctl: fill identical information to return value when adding userspace elements
ALSA: ctl: fix a bug to return no identical information in info operation for userspace controls
ALSA: ctl: confirm to return all identical information in 'activate' event
...
Diffstat (limited to 'sound/soc/codecs/wm8971.c')
-rw-r--r-- | sound/soc/codecs/wm8971.c | 99 |
1 files changed, 30 insertions, 69 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c index 39ddb9b8834c..f9cbabdc6238 100644 --- a/sound/soc/codecs/wm8971.c +++ b/sound/soc/codecs/wm8971.c @@ -31,11 +31,11 @@ #define WM8971_REG_COUNT 43 -static struct workqueue_struct *wm8971_workq = NULL; - /* codec private data */ struct wm8971_priv { unsigned int sysclk; + struct delayed_work charge_work; + struct regmap *regmap; }; /* @@ -552,9 +552,19 @@ static int wm8971_mute(struct snd_soc_dai *dai, int mute) return 0; } +static void wm8971_charge_work(struct work_struct *work) +{ + struct wm8971_priv *wm8971 = + container_of(work, struct wm8971_priv, charge_work.work); + + /* Set to 500k */ + regmap_update_bits(wm8971->regmap, WM8971_PWR1, 0x0180, 0x0100); +} + static int wm8971_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { + struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; switch (level) { @@ -563,15 +573,24 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec, snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); break; case SND_SOC_BIAS_PREPARE: + /* Wait until fully charged */ + flush_delayed_work(&wm8971->charge_work); break; case SND_SOC_BIAS_STANDBY: - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { snd_soc_cache_sync(codec); + /* charge output caps - set vmid to 5k for quick power up */ + snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x01c0); + queue_delayed_work(system_power_efficient_wq, + &wm8971->charge_work, msecs_to_jiffies(1000)); + } else { + /* mute dac and set vmid to 500k, enable VREF */ + snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); + } - /* mute dac and set vmid to 500k, enable VREF */ - snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); break; case SND_SOC_BIAS_OFF: + cancel_delayed_work_sync(&wm8971->charge_work); snd_soc_write(codec, WM8971_PWR1, 0x0001); break; } @@ -610,58 +629,14 @@ static struct snd_soc_dai_driver wm8971_dai = { .ops = &wm8971_dai_ops, }; -static void wm8971_work(struct work_struct *work) -{ - struct snd_soc_dapm_context *dapm = - container_of(work, struct snd_soc_dapm_context, - delayed_work.work); - struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm); - wm8971_set_bias_level(codec, codec->dapm.bias_level); -} - -static int wm8971_suspend(struct snd_soc_codec *codec) -{ - wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); - return 0; -} - -static int wm8971_resume(struct snd_soc_codec *codec) -{ - u16 reg; - - wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - /* charge wm8971 caps */ - if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { - reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; - snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); - codec->dapm.bias_level = SND_SOC_BIAS_ON; - queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, - msecs_to_jiffies(1000)); - } - - return 0; -} - static int wm8971_probe(struct snd_soc_codec *codec) { - int ret = 0; - u16 reg; + struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); - INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); - wm8971_workq = create_workqueue("wm8971"); - if (wm8971_workq == NULL) - return -ENOMEM; + INIT_DELAYED_WORK(&wm8971->charge_work, wm8971_charge_work); wm8971_reset(codec); - /* charge output caps - set vmid to 5k for quick power up */ - reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; - snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); - codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; - queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, - msecs_to_jiffies(1000)); - /* set the update bits */ snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); @@ -672,26 +647,13 @@ static int wm8971_probe(struct snd_soc_codec *codec) snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); - return ret; -} - - -/* power down chip */ -static int wm8971_remove(struct snd_soc_codec *codec) -{ - wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); - - if (wm8971_workq) - destroy_workqueue(wm8971_workq); return 0; } static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { .probe = wm8971_probe, - .remove = wm8971_remove, - .suspend = wm8971_suspend, - .resume = wm8971_resume, .set_bias_level = wm8971_set_bias_level, + .suspend_bias_off = true, .controls = wm8971_snd_controls, .num_controls = ARRAY_SIZE(wm8971_snd_controls), @@ -715,7 +677,6 @@ static int wm8971_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8971_priv *wm8971; - struct regmap *regmap; int ret; wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv), @@ -723,9 +684,9 @@ static int wm8971_i2c_probe(struct i2c_client *i2c, if (wm8971 == NULL) return -ENOMEM; - regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap); - if (IS_ERR(regmap)) - return PTR_ERR(regmap); + wm8971->regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap); + if (IS_ERR(wm8971->regmap)) + return PTR_ERR(wm8971->regmap); i2c_set_clientdata(i2c, wm8971); |