From d686500ae87275ed58a074f9e5e8b35b9afe30d8 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Mon, 18 Feb 2013 19:59:34 -0800 Subject: [PATCH] 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; -- 2.39.5