diff options
Diffstat (limited to 'sound/soc/codecs/si476x.c')
| -rw-r--r-- | sound/soc/codecs/si476x.c | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c index 566ea32..721587c 100644 --- a/sound/soc/codecs/si476x.c +++ b/sound/soc/codecs/si476x.c @@ -1,3 +1,22 @@ +/* + * sound/soc/codecs/si476x.c -- Codec driver for SI476X chips + * + * Copyright (C) 2012 Innovative Converged Devices(ICD) + * Copyright (C) 2013 Andrey Smirnov + * + * Author: Andrey Smirnov <andrew.smirnov@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + */ + #include <linux/module.h> #include <linux/slab.h> #include <sound/pcm.h> @@ -45,13 +64,23 @@ static unsigned int si476x_codec_read(struct snd_soc_codec *codec, unsigned int reg) { int err; + unsigned int val; struct si476x_core *core = codec->control_data; si476x_core_lock(core); - err = si476x_core_cmd_get_property(core, reg); + if (!si476x_core_is_powered_up(core)) + regcache_cache_only(core->regmap, true); + + err = regmap_read(core->regmap, reg, &val); + + if (!si476x_core_is_powered_up(core)) + regcache_cache_only(core->regmap, false); si476x_core_unlock(core); - return err; + if (err < 0) + return err; + + return val; } static int si476x_codec_write(struct snd_soc_codec *codec, @@ -61,7 +90,13 @@ static int si476x_codec_write(struct snd_soc_codec *codec, struct si476x_core *core = codec->control_data; si476x_core_lock(core); - err = si476x_core_cmd_set_property(core, reg, val); + if (!si476x_core_is_powered_up(core)) + regcache_cache_only(core->regmap, true); + + err = regmap_write(core->regmap, reg, val); + + if (!si476x_core_is_powered_up(core)) + regcache_cache_only(core->regmap, false); si476x_core_unlock(core); return err; @@ -140,7 +175,7 @@ static int si476x_codec_set_dai_fmt(struct snd_soc_dai *codec_dai, dev_err(codec_dai->codec->dev, "Failed to set output format\n"); return err; } - + return 0; } @@ -182,7 +217,7 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream, err = snd_soc_update_bits(dai->codec, SI476X_DIGITAL_IO_OUTPUT_FORMAT, SI476X_DIGITAL_IO_OUTPUT_WIDTH_MASK, - (width << SI476X_DIGITAL_IO_SLOT_SIZE_SHIFT) | + (width << SI476X_DIGITAL_IO_SLOT_SIZE_SHIFT) | (width << SI476X_DIGITAL_IO_SAMPLE_SIZE_SHIFT)); if (err < 0) { dev_err(dai->codec->dev, "Failed to set output width\n"); @@ -251,6 +286,6 @@ static struct platform_driver si476x_platform_driver = { }; module_platform_driver(si476x_platform_driver); -MODULE_AUTHOR("Andrey Smirnov <andrey.smirnov@convergeddevices.net>"); +MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>"); MODULE_DESCRIPTION("ASoC Si4761/64 codec driver"); MODULE_LICENSE("GPL"); |