diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-12-03 12:33:55 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-01-21 21:15:38 +0000 |
| commit | 8a713da8d1ce9ceaf738b32e2b24f22d4432f886 (patch) | |
| tree | c0fb13d21f18ed19c82e4d9214d440e34b0c474b | |
| parent | 278047fd654dde7ed95c8604fcefeeacc5c0bb2b (diff) | |
| download | linux-8a713da8d1ce9ceaf738b32e2b24f22d4432f886.tar.bz2 | |
ASoC: Use regmap update bits operation for drivers using regmap
If a driver is using regmap directly ensure that we're coherent with
non-ASoC register updates by using the regmap API directly to do our
read/modify/write cycles. This will bypass the ASoC cache but drivers
using regmap directly should not be using the ASoC cache.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| -rw-r--r-- | include/sound/soc.h | 1 | ||||
| -rw-r--r-- | sound/soc/soc-core.c | 25 | ||||
| -rw-r--r-- | sound/soc/soc-dapm.c | 27 | ||||
| -rw-r--r-- | sound/soc/soc-io.c | 1 |
4 files changed, 34 insertions, 20 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index 55381fca6e0d..2f687edd4fde 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -560,6 +560,7 @@ struct snd_soc_codec { unsigned int ac97_created:1; /* Codec has been created by SoC */ unsigned int sysfs_registered:1; /* codec has been sysfs registered */ unsigned int cache_init:1; /* codec cache has been initialized */ + unsigned int using_regmap:1; /* using regmap access */ u32 cache_only; /* Suppress writes to hardware */ u32 cache_sync; /* Cache needs to be synced to hardware */ diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 41c8e45a23e2..35a1e639d7f9 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1869,23 +1869,28 @@ EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw); int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, unsigned int mask, unsigned int value) { - int change; + bool change; unsigned int old, new; int ret; - ret = snd_soc_read(codec, reg); - if (ret < 0) - return ret; - - old = ret; - new = (old & ~mask) | (value & mask); - change = old != new; - if (change) { - ret = snd_soc_write(codec, reg, new); + if (codec->using_regmap) { + ret = regmap_update_bits_check(codec->control_data, reg, + mask, value, &change); + } else { + ret = snd_soc_read(codec, reg); if (ret < 0) return ret; + + old = ret; + new = (old & ~mask) | (value & mask); + change = old != new; + if (change) + ret = snd_soc_write(codec, reg, new); } + if (ret < 0) + return ret; + return change; } EXPORT_SYMBOL_GPL(snd_soc_update_bits); diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 1f55ded4047f..31a06b2b4442 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -197,21 +197,28 @@ static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, unsigned short reg, unsigned int mask, unsigned int value) { - int change; + bool change; unsigned int old, new; int ret; - ret = soc_widget_read(w, reg); - if (ret < 0) - return ret; - - old = ret; - new = (old & ~mask) | (value & mask); - change = old != new; - if (change) { - ret = soc_widget_write(w, reg, new); + if (w->codec && w->codec->using_regmap) { + ret = regmap_update_bits_check(w->codec->control_data, + reg, mask, value, &change); + if (ret != 0) + return ret; + } else { + ret = soc_widget_read(w, reg); if (ret < 0) return ret; + + old = ret; + new = (old & ~mask) | (value & mask); + change = old != new; + if (change) { + ret = soc_widget_write(w, reg, new); + if (ret < 0) + return ret; + } } return change; diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c index c8610cbf34a5..39ba5070ff92 100644 --- a/sound/soc/soc-io.c +++ b/sound/soc/soc-io.c @@ -140,6 +140,7 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, case SND_SOC_REGMAP: /* Device has made its own regmap arrangements */ + codec->using_regmap = true; break; default: |