From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 037C42BB1D for ; Tue, 14 Oct 2025 06:47:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760424457; cv=none; b=NpGatNJ85ilhZ7+shvlLa1GfsYL4m0P9SXgbemG354h9sdySzihBQ+uhzDy8Y+nbH0daVyu40MQkunRFnKVdq2lQMiNqjKubhRiSKkDS99OTeQKZcka9r4UgPBAJmI6NmzM+rCS2gkfe9rPoG/z0Y6IUPc9j5tkRl0L3HbtUfS4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760424457; c=relaxed/simple; bh=ZFRDfUpHgWcheTcqlADTg/C/QjCweoPMkKmsXsmLGSk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=WQxsAofStPuYDeWEqgIozSoMzaX5qHfi6T2MwAwMFnlrftAyahgy22TABfjsnh6kGxHZmdGGc1pTxxQ8GNY/61Ay8ZHGV2DFvuoi5fEZtzeSsqJxCBFKTbe2tXrC7VAKmuH9BPd3RDXk86g0X9O1OTcyfUSY582wueNBtQNWHcY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=JKFon79K; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="JKFon79K" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=zJmg lXwCzB6o9CQsLpsHwsmRfpe1v4LDufLB7f7Z7pI=; b=JKFon79Km5XuuxXkxbmX piZAx5Jsyi7pNt/p1Dk0BIzQCH5e/73aYcPv8djqUQrmvyeauGKvMpGUYbNuxbi7 QZ9+SibzeXPRi8duPoYcRoc+gkCATTA8DpOKc8zqxP2q8Jl/2qlknzh4ZXYksiUZ p5YXC5C98qflvdB2QhTT6rY8Ujk7u27R97szpFhEcLf872JUMcoNAtpfFLiRv9wC sAGyTHy5L7EQFZB2D413+u2FWQgpI//Z+iZrUncUSUKR8MsX3Kcu1JPOygfUEIgZ FQWRUL1QJjyC1jqWhAEZaJCc4eOZujrt+CD0A8R39VHqYSnxlAdHLZD7Ejmzkc7E KQ== Received: (qmail 2849298 invoked from network); 14 Oct 2025 08:47:28 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 14 Oct 2025 08:47:28 +0200 X-UD-Smtp-Session: l3s3148p1@HJvcwRhBUNEujnus Date: Tue, 14 Oct 2025 08:47:27 +0200 From: Wolfram Sang To: Kuninori Morimoto Cc: Wojciech Siudy , linux-i2c@vger.kernel.org Subject: Re: [Bug report]: "i2c: muxes: pca954x: Use reset controller only" makes I2C break Message-ID: References: <87a51um1y1.wl-kuninori.morimoto.gx@renesas.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="EBwQBuj4HXTbxqHz" Content-Disposition: inline In-Reply-To: <87a51um1y1.wl-kuninori.morimoto.gx@renesas.com> --EBwQBuj4HXTbxqHz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Morimoto-san, > I noticed that this commit breaks Renesas ULCB board Sound which is using= I2C. >=20 > 690de2902dca98aec96de004428c020ca902f047 (HEAD) > ("i2c: muxes: pca954x: Use reset controller only") >=20 > Before this patch, sound works correctly, but after this patch, sound can= n't > work. This is on KingFisher, right? I have this board and will have a look at it today. Thank you for the report! All the best, Wolfram --EBwQBuj4HXTbxqHz Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmjt8fsACgkQFA3kzBSg KbY7/g/8Ce+5aU30vC1ux/AAU2+wS+KCuDQL76XbUm3uagLyBTmppvktdThPPsiJ POJUKPC9Zd9ytKueyxwwrL2NmXVBZ9MljMrjScjoXP2rIfptQxebUxoQVXkOlpTD aw/h09nvFEEV8+YU4I6IbKpFX+VdFknQGp33+YkQWd2/ItwI8cx9KLO6P2pwc+Yh aJokXz6Cx0fa6//VJVVJDNclUUjBMqb/UGPRuXmMQ997L8CPO9tIeGTO75sXUo8p EWO6ex1BE9b68993nTHJpGc+ehJFNdslayo2PAZFQEbJ3dj1E+8EIkKQ8UF7EwpT 7hnDsE+Wir6L6XmB9BU3VCQUDPoPbnoVpuYi0slMqqt2R96Pxeo4BRoXTtH/v1Py HIHCQup+DrgUu07D3Cks/D7dvGHw4MZ7vcpcWclx2uJhoEEaEiozpi+/T9HlLNmQ Ey4SKwMlZabBfXOB14PgZ1zziKpX2tZ2hupfzajNJod4H+seQFIKNk+dQcDlewzp sCW1djaTo4TPDTFoobehVSoBLIF6L3B1GT3l9P78BSN/feVnKdf4e/i0xOEOxJdP WvaLW2Gc5xMBdMacSnH+wazbMcl7SxWYZSVG0itzR3c0AfmhOQbRRdgazoyG7S/b ZLJCpa1ZJuPvz+jsJyuKQeR/casW6RFMBG3eaXjfvN2MDqYQesc= =eF7M -----END PGP SIGNATURE----- --EBwQBuj4HXTbxqHz--