From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752825AbcELLBq (ORCPT ); Thu, 12 May 2016 07:01:46 -0400 Received: from dougal.metanate.com ([90.155.101.14]:19551 "EHLO metanate.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751923AbcELLBo (ORCPT ); Thu, 12 May 2016 07:01:44 -0400 Date: Thu, 12 May 2016 12:01:31 +0100 From: John Keeping To: Mark Brown Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Liam Girdwood , Jaroslav Kysela , Takashi Iwai Subject: Re: [PATCH 5/9] ASoC: es8328: Use more suitable definition for mic bias Message-ID: <20160512120131.30a91984.john@metanate.com> In-Reply-To: <20160510175335.GC6261@sirena.org.uk> References: <20160509112437.8924-1-john@metanate.com> <20160509112437.8924-6-john@metanate.com> <20160510175335.GC6261@sirena.org.uk> Organization: Metanate Ltd X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.30; x86_64-unknown-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 10 May 2016 18:53:35 +0100, Mark Brown wrote: > On Mon, May 09, 2016 at 12:24:33PM +0100, John Keeping wrote: > > > - SND_SOC_DAPM_SUPPLY("Mic Bias", ES8328_ADCPOWER, > > - ES8328_ADCPOWER_MIC_BIAS_OFF, 1, NULL, 0), > > + SND_SOC_DAPM_MICBIAS("Mic Bias", ES8328_ADCPOWER, > > + ES8328_ADCPOWER_MIC_BIAS_OFF, 1), > > No, this is broken. The specialist MICBIAS widget is legacy and should > not be used. OK, this can be dropped. Would you consider doing something like the patch below? The only reference I can find to MICBIAS being legacy is in commit 086d7f804e26 ("ASoC: Convert WM8962 MICBIAS to a supply widget", 2011-09-23) and some following commits, there don't seem to be any comments in the documentation indicating that it's not to be used. -- >8 -- diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 97069466c38d..3101d53468aa 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -100,6 +100,7 @@ struct device; { .id = snd_soc_dapm_mixer_named_ctl, .name = wname, \ SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ .kcontrol_news = wcontrols, .num_kcontrols = wncontrols} +/* DEPRECATED: use SND_SOC_DAPM_SUPPLY */ #define SND_SOC_DAPM_MICBIAS(wname, wreg, wshift, winvert) \ { .id = snd_soc_dapm_micbias, .name = wname, \ SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \ @@ -473,7 +474,7 @@ enum snd_soc_dapm_type { snd_soc_dapm_out_drv, /* output driver */ snd_soc_dapm_adc, /* analog to digital converter */ snd_soc_dapm_dac, /* digital to analog converter */ - snd_soc_dapm_micbias, /* microphone bias (power) */ + snd_soc_dapm_micbias, /* microphone bias (power) - DEPRECATED: use snd_soc_dapm_supply */ snd_soc_dapm_mic, /* microphone */ snd_soc_dapm_hp, /* headphones */ snd_soc_dapm_spk, /* speaker */