From mboxrd@z Thu Jan 1 00:00:00 1970 From: Charles Keepax Subject: [PATCH 2/4] ASoC: arizona: Add utility function to check if an input is analog Date: Wed, 16 Sep 2015 13:59:41 +0100 Message-ID: <1442408383-31682-2-git-send-email-ckeepax@opensource.wolfsonmicro.com> References: <1442408383-31682-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx0a-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) by alsa0.perex.cz (Postfix) with ESMTP id 05512261501 for ; Wed, 16 Sep 2015 15:23:19 +0200 (CEST) In-Reply-To: <1442408383-31682-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: broonie@kernel.org Cc: alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com, lgirdwood@gmail.com List-Id: alsa-devel@alsa-project.org We will occasionally require to take different action based on if an input is analog or digital so add a helper function to return if an input is analog. Signed-off-by: Charles Keepax --- sound/soc/codecs/arizona.c | 9 +++++++++ sound/soc/codecs/arizona.h | 2 ++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 1bc19f1..ac21b85 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -691,6 +691,15 @@ static void arizona_in_set_vu(struct snd_soc_codec *codec, int ena) ARIZONA_IN_VU, val); } +bool arizona_input_analog(struct snd_soc_codec *codec, int shift) +{ + unsigned int reg = ARIZONA_IN1L_CONTROL + ((shift / 2) * 8); + unsigned int val = snd_soc_read(codec, reg); + + return !(val & ARIZONA_IN1_MODE_MASK); +} +EXPORT_SYMBOL_GPL(arizona_input_analog); + int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index ada0a41..7b68d05 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -294,4 +294,6 @@ extern int arizona_init_dai(struct arizona_priv *priv, int dai); int arizona_set_output_mode(struct snd_soc_codec *codec, int output, bool diff); +extern bool arizona_input_analog(struct snd_soc_codec *codec, int shift); + #endif -- 1.7.2.5