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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BD3C9C48BEB for ; Wed, 14 Feb 2024 09:42:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=/qcgZIC6ULsl9BeuNjT61u/fk05l+ssnLsBAIHjn++4=; b=3l3hxUPh9wbpSfJNu/uFpjDzIq AEhdBNo6FXpll9o8B2RdokZr0IPilIe77wHb/qJII+KGvPSeGkyYW7YXKGI0EW5JgL/Rp2XBTXifS Xp31Tdy6AzmB01OTYO0OpV/vNcfxjWrs8Rpt+UTAspHc50DAGitai/jLKGhO9zjc1/awKUmkMVBb0 +uBY81sxXqD5G4E12iTr7VFZxcTcNFAXAdWAnKMydBzt6Af5/dFpmC+n1GDiz9+O7N85i3IRkC66e MEHohGuECjmwHFH20MbSX9g37xLSdphU/bjFcBMaETL990CU7ql8xgM44XAMMk8D5L/eBXI8sohd8 1Cs8F2hQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1raBlw-0000000CPY5-0JNp; Wed, 14 Feb 2024 09:41:44 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1raBix-0000000CNJX-1bbb for linux-arm-kernel@lists.infradead.org; Wed, 14 Feb 2024 09:38:41 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id CA12561877; Wed, 14 Feb 2024 09:38:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CFFB1C433F1; Wed, 14 Feb 2024 09:38:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707903518; bh=dz5V4kR1LuJbVIZ4dAGFdi8A2apYcjn87QSy+rVXNsA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=B7zqyhsqWntTU0ZYqNqy+uJY0/kpfKgSqfIQgafxHQxLHh/aG4BMvKgKKSEyHKvVQ nN3yua93J85s9bPWXEt48LUbWYNpPCbdHcGSA2ttpnUbsCWllg+dbGTeDKqUxkRhcf DF0Jeyb3ibQCgsqx+F6hfsN4DB0aF+pr9lRdNtq3xH8pbwzzFZ3IMgD2HGkQsF90wD FLFwvGjxZ4A8vJY0BBzkkgh8VPmXKb6D4STEqB+VRZvUapu3Xg8V03swFWwtPNRoNz qS9kkvardxBYPALbHcUkYv/2CGiD42d4SSmPCWAawQCYo2MniV0Ykx2yGVdxHu+Pi0 AjUFtD2gJ3U7w== Date: Wed, 14 Feb 2024 09:38:32 +0000 From: Conor Dooley To: Bhargav Raviprakash Cc: arnd@arndb.de, broonie@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, gregkh@linuxfoundation.org, jpanis@baylibre.com, kristo@kernel.org, krzysztof.kozlowski+dt@linaro.org, lee@kernel.org, lgirdwood@gmail.com, linus.walleij@linaro.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, m.nirmaladevi@ltts.com, nm@ti.com, robh+dt@kernel.org, vigneshr@ti.com Subject: Re: [RESEND PATCH v1 03/13] dt-bindings: mfd: ti,tps6594: Add TI TPS65224 PMIC Message-ID: <20240214-galley-dweller-1e9872229d80@spud> References: <20240209-blitz-fidgety-78469aa80d6d@spud> <20240214093106.86483-1-bhargav.r@ltts.com> MIME-Version: 1.0 In-Reply-To: <20240214093106.86483-1-bhargav.r@ltts.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240214_013839_501720_752CA094 X-CRM114-Status: GOOD ( 23.48 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5355552603562433419==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============5355552603562433419== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="EFq+e2HVA4/N0Ifh" Content-Disposition: inline --EFq+e2HVA4/N0Ifh Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Feb 14, 2024 at 03:01:06PM +0530, Bhargav Raviprakash wrote: > Hi Conor, >=20 > On Fri 2/9/2024 10:41 PM, Conor Dooley wrote: > > On Thu, Feb 08, 2024 at 04:23:33PM +0530, Bhargav Raviprakash wrote: > > > TPS65224 is a Power Management IC with 4 Buck regulators and 3 LDO > > > regulators, it includes additional features like GPIOs, watchdog, ESMs > > > (Error Signal Monitor), and PFSM (Pre-configurable Finite State Machi= ne) > > > managing the state of the device. > >=20 > > > TPS6594 and TPS65224 have significant functional overlap. > >=20 > > What does "significant functional overlap" mean? Does one implement a > > compatible subset of the other? I assume the answer is no, given there > > seems to be some core looking registers at different addresses. >=20 > The intention behind =E2=80=9Csignificant functional overlap=E2=80=9D was= meant to > indicate a lot of the features between TPS6594 and TPS65224 overlap, > while there are some features specific to TPS65224. > There is compatibility between the PMIC register maps, I2C, PFSM, > and other drivers even though there are some core registers at > different addresses. >=20 > Would it be more appropriate to say the 2 devices are compatible and have > sufficient feature overlap rather than significant functional overlap? If core registers are at different addresses, then it is unlikely that these devices are compatible. In this context, compatible means that existing software intended for the 6594 would run without modification on the 65224, although maybe only supporting a subset of features. If that's not the case, then the devices are not compatible. --EFq+e2HVA4/N0Ifh Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZcyKGAAKCRB4tDGHoIJi 0kAGAQCCU0bkl+s+BdL+d40Qr/mkOI5Ie4yq/1oBg7aALwQ3RwEAx4O9b5/Q5bbk UfmurbkwjbQMV4Ls0UIFvMC7Mi8rxA8= =byM7 -----END PGP SIGNATURE----- --EFq+e2HVA4/N0Ifh-- --===============5355552603562433419== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============5355552603562433419==--