From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1ADE1C433EF for ; Wed, 6 Oct 2021 08:47:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 033E360F5C for ; Wed, 6 Oct 2021 08:47:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237719AbhJFIt0 (ORCPT ); Wed, 6 Oct 2021 04:49:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42760 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237841AbhJFItZ (ORCPT ); Wed, 6 Oct 2021 04:49:25 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F3A8C061749; Wed, 6 Oct 2021 01:47:32 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id i24so7105082lfj.13; Wed, 06 Oct 2021 01:47:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=qt1MU2rBHUcCG/itiqLGGGuQT3zd/XSnIPDfOKn/Ios=; b=kofkwor/Exw5fvZpgw8RKXo87GQ0UtBlNV5skI9mNMtOZVBYKg7R9sHNw1qy8RCy9K YQHGCMGVX/3a8t0XVF1JQ7x6YugN3L9s2+PSQCGpox9gTc1sQNXCrLLLQVpiiXxCrXW0 KDPv+9k/5mwYlsYqFTLbKu7TzygRe273QRv8gexRDvoyHI1Z7VCybp2ucN6/XFeaQALJ rkDUpc7VnBDkOWPplETX4Xt3OrqiQw+h558dDb4GXRlDd50fyU+1W+7bvezdsrG8ygmg 19mkkyGaD3IEtb5Oft/QGYZDBvq/T7+05fs64GSZrQu+yZ5XWMLYIWdF3T+o1gVzxikp iJ2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=qt1MU2rBHUcCG/itiqLGGGuQT3zd/XSnIPDfOKn/Ios=; b=3ezdQgneTJbB/8g+Fl8pTYoIwAxkrmSTaYYif89/XCJ4gTIuR1LTVEoiZ493GAuo4G IegpoLyvWynUb8dDI7WSWls0tJHwKnb6sGvupKgCunN6wPFcLoP4FBXlDiGQm2UTwqSC QznOw7JCrtP+jGKoAVqsu2Fl7/w6Cq87/1kHVU19DI5yXpBe9p5mrCNAx3v3BcAEDGWJ l7kKYCuA6ejlMkIJdy952CvczSAEkZQEWo+xcNQ/laToPSnomNPN10gNcI5Xeg4SJONI KJ0GAmXal7ujRX8CFYpec+bOABIBkMR94fyjMZQVSLPWD4L1BcHFs8B0VBmd4ILaUQTi 7CLg== X-Gm-Message-State: AOAM532lvCDwhziFI5ySF12yxo/d+y4Z3JEscRihnHbkWRvnNsqbfNtO HA5MSgqu9rUxiKjj3C02+/qZNxISaaIkuGJvB08= X-Google-Smtp-Source: ABdhPJxaeki3renWBs16/PtlBC3PGa0bzgH87pk9l6BVmGBv7CtNn1ORXziCn/HrbNw8V2syQmhIs6DqrrcmCLa6b7E= X-Received: by 2002:a05:6512:12c9:: with SMTP id p9mr8839455lfg.345.1633510049583; Wed, 06 Oct 2021 01:47:29 -0700 (PDT) MIME-Version: 1.0 References: <1633396615-14043-1-git-send-email-u0084500@gmail.com> In-Reply-To: From: ChiYuan Huang Date: Wed, 6 Oct 2021 16:47:18 +0800 Message-ID: Subject: Re: [PATCH 1/2] ASoC: dt-bindings: rt9120: Add initial bindings To: Mark Brown Cc: oder_chiou@realtek.com, perex@perex.cz, tiwai@suse.com, Rob Herring , Liam Girdwood , alsa-devel@alsa-project.org, lkml , cy_huang , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , allen lin Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Mark: ChiYuan Huang =E6=96=BC 2021=E5=B9=B410=E6=9C=885=E6= =97=A5 =E9=80=B1=E4=BA=8C =E4=B8=8B=E5=8D=888:39=E5=AF=AB=E9=81=93=EF=BC=9A > > Mark Brown =E6=96=BC 2021=E5=B9=B410=E6=9C=885=E6=97= =A5 =E9=80=B1=E4=BA=8C =E4=B8=8B=E5=8D=888:29=E5=AF=AB=E9=81=93=EF=BC=9A > > > > On Tue, Oct 05, 2021 at 08:25:43PM +0800, ChiYuan Huang wrote: > > > Mark Brown =E6=96=BC 2021=E5=B9=B410=E6=9C=885= =E6=97=A5 =E9=80=B1=E4=BA=8C =E4=B8=8B=E5=8D=887:49=E5=AF=AB=E9=81=93=EF=BC= =9A > > > > On Tue, Oct 05, 2021 at 09:16:54AM +0800, cy_huang wrote: > > > > > > > + richtek,use-dvdd-1p8v: > > > > > + description: Indicate DVDD 1P8V is used, default for 3P3V or= 5V design > > > > > + type: boolean > > > > > > I would expect this to be done through the regulator bindings, they > > > > would allow the driver to query the supply voltage. > > > > > It's more like as the I/O pad voltage. > > > Must be the same as I2C and I2S signal high level. > > > It depends on the application SOC design. > > > From my understanding, not all application SOC I/O voltage uses > > > regulator interface. > > > > It doesn't really matter what the SoC is doing here, you can always add > > regulator support to your device - you'd be requesting the supplies to > > your device, if the SoC doesn't request the supplies that go to it that > > doesn't really make a difference to what your driver does. > > > > Please don't take things off-list unless there is a really strong reaso= n > > to do so. Sending things to the list ensures that everyone gets a > > chance to read and comment on things. > After contacting our HW RD, to support DVDD 1.8V not just SW config, also HW connections. To get only DVDD supply voltage is not enough to meet the HW design. The property seems indeed and need to be used by user's HW connection. Can this property to be kept? > Sorry, my fault. > I just noticed the mail not reply all. Loop all again. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93D39C433F5 for ; Sun, 10 Oct 2021 07:50:26 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 35E0361056 for ; Sun, 10 Oct 2021 07:50:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 35E0361056 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id B5D8E166E; 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charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Sun, 10 Oct 2021 09:49:29 +0200 Cc: oder_chiou@realtek.com, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , alsa-devel@alsa-project.org, lkml , Liam Girdwood , tiwai@suse.com, cy_huang , Rob Herring , allen lin X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Hi, Mark: ChiYuan Huang =E6=96=BC 2021=E5=B9=B410=E6=9C=885=E6= =97=A5 =E9=80=B1=E4=BA=8C =E4=B8=8B=E5=8D=888:39=E5=AF=AB=E9=81=93=EF=BC=9A > > Mark Brown =E6=96=BC 2021=E5=B9=B410=E6=9C=885=E6=97= =A5 =E9=80=B1=E4=BA=8C =E4=B8=8B=E5=8D=888:29=E5=AF=AB=E9=81=93=EF=BC=9A > > > > On Tue, Oct 05, 2021 at 08:25:43PM +0800, ChiYuan Huang wrote: > > > Mark Brown =E6=96=BC 2021=E5=B9=B410=E6=9C=885= =E6=97=A5 =E9=80=B1=E4=BA=8C =E4=B8=8B=E5=8D=887:49=E5=AF=AB=E9=81=93=EF=BC= =9A > > > > On Tue, Oct 05, 2021 at 09:16:54AM +0800, cy_huang wrote: > > > > > > > + richtek,use-dvdd-1p8v: > > > > > + description: Indicate DVDD 1P8V is used, default for 3P3V or= 5V design > > > > > + type: boolean > > > > > > I would expect this to be done through the regulator bindings, they > > > > would allow the driver to query the supply voltage. > > > > > It's more like as the I/O pad voltage. > > > Must be the same as I2C and I2S signal high level. > > > It depends on the application SOC design. > > > From my understanding, not all application SOC I/O voltage uses > > > regulator interface. > > > > It doesn't really matter what the SoC is doing here, you can always add > > regulator support to your device - you'd be requesting the supplies to > > your device, if the SoC doesn't request the supplies that go to it that > > doesn't really make a difference to what your driver does. > > > > Please don't take things off-list unless there is a really strong reaso= n > > to do so. Sending things to the list ensures that everyone gets a > > chance to read and comment on things. > After contacting our HW RD, to support DVDD 1.8V not just SW config, also HW connections. To get only DVDD supply voltage is not enough to meet the HW design. The property seems indeed and need to be used by user's HW connection. Can this property to be kept? > Sorry, my fault. > I just noticed the mail not reply all. Loop all again.