Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756597Ab1FFLjz (ORCPT ); Mon, 6 Jun 2011 07:39:55 -0400 Received: from smtp-out-228.synserver.de ([212.40.185.228]:1088 "HELO smtp-out-224.synserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1756321Ab1FFLjj (ORCPT ); Mon, 6 Jun 2011 07:39:39 -0400 X-SynServer-TrustedSrc: 1 X-SynServer-AuthUser: lars@laprican.de X-SynServer-PPID: 13762 From: Lars-Peter Clausen To: Mark Brown , Liam Girdwood Cc: alsa-devel@alsa-project.org, device-drivers-devel@blackfin.uclinux.org, linux-kernel@vger.kernel.org, Lars-Peter Clausen Subject: [PATCH 6/6] ASoC: AD1836: Add input gain control for ADC2 Date: Mon, 6 Jun 2011 13:38:40 +0200 Message-Id: <1307360320-4727-6-git-send-email-lars@metafoo.de> X-Mailer: git-send-email 1.7.2.5 In-Reply-To: <1307360320-4727-1-git-send-email-lars@metafoo.de> References: <1307360320-4727-1-git-send-email-lars@metafoo.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1421 Lines: 45 The AD1836 has a PGA for its second ADC. This patch adds a control for adjusting the the gain of the PGA. Signed-off-by: Lars-Peter Clausen --- sound/soc/codecs/ad1836.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c index 75ff5a5..1e9a801 100644 --- a/sound/soc/codecs/ad1836.c +++ b/sound/soc/codecs/ad1836.c @@ -124,6 +124,13 @@ static const struct snd_soc_dapm_route ad183x_dapm_routes[] = { { "ADC", NULL, "ADC_PWR" }, }; +static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0); + +static const struct snd_kcontrol_new ad1836_controls[] = { + SOC_DOUBLE_TLV("ADC2 Capture Volume", AD183X_ADC_CTRL1, 3, 0, 4, 0, + ad1836_in_tlv), +}; + /* * DAI ops entries */ @@ -280,6 +287,10 @@ static int ad1836_probe(struct snd_soc_codec *codec) if (ad1836->type == AD1836) { /* left/right diff:PGA/MUX */ snd_soc_write(codec, AD1836_ADC_CTRL3, 0x3A); + ret = snd_soc_add_controls(codec, ad1836_controls, + ARRAY_SIZE(ad1836_controls)); + if (ret) + return ret; } else { snd_soc_write(codec, AD1836_ADC_CTRL3, 0x00); } -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/