From mboxrd@z Thu Jan 1 00:00:00 1970 From: Annaliese McDermond Subject: [PATCH 1/2] ASoC: tlv320aic32x4: Add Switch for Setting Common Mode Voltage Date: Wed, 3 Apr 2019 21:01:54 -0700 Message-ID: <20190404040155.29246-1-nh6z@nh6z.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from smtp81.ord1d.emailsrvr.com (smtp81.ord1d.emailsrvr.com [184.106.54.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E3FD0F8071D for ; Thu, 4 Apr 2019 06:02:15 +0200 (CEST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" To: broonie@kernel.org, alsa-devel@alsa-project.org Cc: team@nwdigitalradio.com List-Id: alsa-devel@alsa-project.org Add a switch for setting common mode voltage. This can allow for higher drive levels on the amplifier outputs. Signed-off-by: Annaliese McDermond --- sound/soc/codecs/tlv320aic32x4.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c index aec86fd6ac15..77df2cbdf5f4 100644 --- a/sound/soc/codecs/tlv320aic32x4.c +++ b/sound/soc/codecs/tlv320aic32x4.c @@ -242,6 +242,12 @@ static DECLARE_TLV_DB_SCALE(tlv_driver_gain, -600, 100, 0); /* -12dB min, 0.5dB steps */ static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0); +static const char * const lo_cm_text[] = { + "Full Chip", "1.65V", +}; + +static SOC_ENUM_SINGLE_DECL(lo_cm_enum, AIC32X4_CMMODE, 3, lo_cm_text); + static const struct snd_kcontrol_new aic32x4_snd_controls[] = { SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL, AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm), @@ -255,6 +261,7 @@ static const struct snd_kcontrol_new aic32x4_snd_controls[] = { AIC32X4_HPRGAIN, 6, 0x01, 1), SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN, AIC32X4_LORGAIN, 6, 0x01, 1), + SOC_ENUM("LO Playback Common Mode Switch", lo_cm_enum), SOC_DOUBLE_R("Mic PGA Switch", AIC32X4_LMICPGAVOL, AIC32X4_RMICPGAVOL, 7, 0x01, 1), -- 2.19.1