From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Girdwood Subject: Re: [PATCH] ASoC: Automatically manage WM8996 MICBIAS regulating mode Date: Mon, 22 Aug 2011 11:21:55 +0100 Message-ID: <4E522DC3.4070808@ti.com> References: <1313863513-31075-1-git-send-email-broonie@opensource.wolfsonmicro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by alsa0.perex.cz (Postfix) with ESMTP id 27AD01038A7 for ; Mon, 22 Aug 2011 12:22:01 +0200 (CEST) In-Reply-To: <1313863513-31075-1-git-send-email-broonie@opensource.wolfsonmicro.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Mark Brown Cc: "alsa-devel@alsa-project.org" , "patches@opensource.wolfsonmicro.com" List-Id: alsa-devel@alsa-project.org On 20/08/11 19:05, Mark Brown wrote: > For non-audio uses like accessory detection we can use a lower quality, > unregulated microphone bias, saving a little power. As the hardware can > manually enable and disable the biases we can select regulating mode > automatically with supply widgets connected to the biases. > > Signed-off-by: Mark Brown > --- > sound/soc/codecs/wm8996.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c > index 0936ae5..d3277d1 100644 > --- a/sound/soc/codecs/wm8996.c > +++ b/sound/soc/codecs/wm8996.c > @@ -982,6 +982,8 @@ SND_SOC_DAPM_SUPPLY_S("Charge Pump", 2, WM8996_CHARGE_PUMP_1, 15, 0, cp_event, > SND_SOC_DAPM_POST_PMU), > > SND_SOC_DAPM_SUPPLY("LDO2", WM8996_POWER_MANAGEMENT_2, 1, 0, NULL, 0), > +SND_SOC_DAPM_SUPPLY("MICB1 Audio", WM8996_MICBIAS_1, 4, 1, NULL, 0), > +SND_SOC_DAPM_SUPPLY("MICB2 Audio", WM8996_MICBIAS_2, 4, 1, NULL, 0), > SND_SOC_DAPM_MICBIAS("MICB2", WM8996_POWER_MANAGEMENT_1, 9, 0), > SND_SOC_DAPM_MICBIAS("MICB1", WM8996_POWER_MANAGEMENT_1, 8, 0), > > @@ -1137,7 +1139,9 @@ static const struct snd_soc_dapm_route wm8996_dapm_routes[] = { > { "Charge Pump", NULL, "SYSCLK" }, > > { "MICB1", NULL, "LDO2" }, > + { "MICB1", NULL, "MICB1 Audio" }, > { "MICB2", NULL, "LDO2" }, > + { "MICB2", NULL, "MICB2 Audio" }, > > { "IN1L PGA", NULL, "IN2LN" }, > { "IN1L PGA", NULL, "IN2LP" }, Acked-by: Liam Girdwood