From d686500ae87275ed58a074f9e5e8b35b9afe30d8 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Mon, 18 Feb 2013 19:59:34 -0800 Subject: ASoC: si476x: Convert SI476X codec to use regmap The latest radio and MFD drivers for SI476X radio chips use regmap API to provide access to the registers and allow for caching of their values when the actual chip is powered off. Convert the codec driver to do the same, so it would not loose the settings when the radio driver powers the chip down. Signed-off-by: Andrey Smirnov Signed-off-by: Mark Brown --- sound/soc/codecs/si476x.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c index f2d61a187830..30aebbe6815e 100644 --- a/sound/soc/codecs/si476x.c +++ b/sound/soc/codecs/si476x.c @@ -45,13 +45,23 @@ 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 +71,13 @@ 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; -- cgit v1.2.3-73-gaa49b From 06d7c13325228a2272e21caa4aa60805bc4d0fe4 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Mon, 18 Feb 2013 19:59:35 -0800 Subject: ASoC: si476x: Cosmetic changes to SI476X codec driver - Add appropriate license header - Change email address in MODULE_AUTHOR - Remove trailing whitespaces Signed-off-by: Andrey Smirnov Signed-off-by: Mark Brown --- sound/soc/codecs/si476x.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c index 30aebbe6815e..68b648aabdb9 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 + * + * 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 #include #include @@ -156,7 +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; } @@ -197,7 +216,7 @@ 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"); @@ -266,6 +285,6 @@ static struct platform_driver si476x_platform_driver = { }; module_platform_driver(si476x_platform_driver); -MODULE_AUTHOR("Andrey Smirnov "); +MODULE_AUTHOR("Andrey Smirnov "); MODULE_DESCRIPTION("ASoC Si4761/64 codec driver"); MODULE_LICENSE("GPL"); -- cgit v1.2.3-73-gaa49b