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 926F41A9FB4 for ; Wed, 15 Oct 2025 10:56:51 +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=1760525820; cv=none; b=bVYWRnywq8v5lLunSmp/00bu/2OYvmL0ORNW1BE01FDQmae8mB0IN8YBXl98Zv27Kg+mU8lzwbsQOKu8Ousr2/TLSKNAzq7GsYgDHfkYL0l4ASUwNlFYudeft09VXOSOXHYiQ5isv30XEPrb3zcbCu19jHciLEA8DiVaYkWCN28= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760525820; c=relaxed/simple; bh=AVMg7hXcDyXimfEntKOVvSONrziIEwaWOQJMK6UwXyw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=mwc9zSpPy0+eeGJoSbJ3YdSBFRox5pcLb2//hzMjcjIn039lWTKnhhDJRmdqu3TAc1S8F1eC0xSrB/Gu7IDLOxqlP3q1FfldB4QTuzLE8Hjms00QlfsVBaksKSardtJ3aXr9nDqu1xw1CDtnZv/dM3IqRV0RpF1qcXTy37ulVkU= 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=EWIzUQL2; 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="EWIzUQL2" 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=pZ6Z xA5XH6cYewJDTTpBnEkJkPE0FjPtXW7Ptd/dv80=; b=EWIzUQL2NQDoKpjkbXjG 6lXRdYmpKZJ5RuE9oiObS8MziMvspMmOXLtWGiGs3JR449IabYswOfPxkXky7zYB gvzxSabp5uQcrV+nXSrCmV9Ds/JTrpyvlKWdx+X3sTm18fTIXjuo9/R8vx7VtLB4 BxDps2FkNf6cJxLQGny36ytY4hki4kgtcYlOJkvsajdF4dv5eYC8F5TQNzjFYDIb Xv9WVwC4mv+ANVeo0SSc+21jEuKvgpIaVn66IVqNfpYmsGraQ4/l5eB7ZcBegtpo blcCuOiKHsdFPA5FiC3+PLPfxraz7tKipp9I/M2fw0IyE626ryIFPkiMgRKlbvSn dg== Received: (qmail 3360373 invoked from network); 15 Oct 2025 12:56:49 +0200 Received: by mail.zeus03.de with UTF8SMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 15 Oct 2025 12:56:49 +0200 X-UD-Smtp-Session: l3s3148p1@RDx0WzBBUNEujnsG Date: Wed, 15 Oct 2025 12:56:48 +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="PdRQgnifxlqYbTiQ" Content-Disposition: inline In-Reply-To: <87a51um1y1.wl-kuninori.morimoto.gx@renesas.com> --PdRQgnifxlqYbTiQ 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. Confirmed. You need to enable CONFIG_RESET_GPIO in your .config. The reset-framework won't do the fallback without the driver. I will discuss this issue with them. Thanks for the report! Wolfram --PdRQgnifxlqYbTiQ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmjvffAACgkQFA3kzBSg KbZP3w//Yx5QKP0TZ3P3wABd6yXdrEniMvJee1lqnwg8+Rxdy2GNzMJmNWdPFLSf wVmw4gp5dwgfLAjdckSSK10B0xi4u94Z84aw08VjU/enVYkiLkzP8M7IVh8WStMZ l/UV3kfSUw0f5ts7lqGiEt5t/edC739tEiJ/Viz8WPEGJwUR1hkEWOcb7Mmn6pGO aVk8M2unMP1QXQELT5sqBHfoniGiajZFokgxO40+3SgPe1MmV5qjl8v2uxKD7wip tgFkoo0LO7rQZ1b2ldclnMBc/xnnzoH/Bf9uRCyxKoIwyM7dAVdSzXn8eEjvKI1G UNyvdGXcfSv4PZnqYKIkJgRlDTmnHOZ7uQm55Pya8z9Hx1ZE8/Pk4hSOlPyYb6KW jvJW+L/60wqzrRMVIbtAYAlCGVnY5Ksbuh3w3BP36Ol2+wGyiYZ5W8V4ucLt6aPZ RYQRTzOvCXkEXG5PEQRkDtuaUll2OiTTZKCBAfG3E8uaPoS1nF+08xVeaU9BjBIg ZY+85azwQ9vnejow4G6VhS98Tk4KqcstG+32Vc4Rx5CfVyaD8B3oLWgwlMXZQdE2 8IIGejrNtJB3czp+Ss+t1qXCohgOf8nA6IhmE6+ejmEPJG7bR88h0wWZ4qGXB2qD 2Eg55KRXhf/RCmOtck049csiOmtG56Gm1Jx/iyXOip1TVo1Ljrg= =Nsti -----END PGP SIGNATURE----- --PdRQgnifxlqYbTiQ--