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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBD32C4332F for ; Mon, 9 May 2022 15:56:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238717AbiEIQAR (ORCPT ); Mon, 9 May 2022 12:00:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33646 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238697AbiEIQAL (ORCPT ); Mon, 9 May 2022 12:00:11 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D92961F8C5B; Mon, 9 May 2022 08:56:16 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8C513B8174E; Mon, 9 May 2022 15:56:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B20B0C385B3; Mon, 9 May 2022 15:56:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652111774; bh=9KBLlJzB+Vn8EeWf4pniCM2esT/SEQ/l/9rRS1+kJdo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gnP+8DQ6tWihM/xyf7+uFM3YtvEgh9FtTzBcVXuBL5jEo/mkJLpAT8efdz5K5umnH WXlaEN6NDHlu+O52I7sU/hAAesgl2I+cU2gMoYKBIY66Nd554R1E2Ky3vEL9hLaRLt lG6aG/AEHWwv3wBXD2klFOdGL7FRK5b6WtSKtps4cS1roQAQqb8yqjwDXPxB3DQPPv 9MrwKXne9+eNaLSm6VBO7LzpxxmbTm6k/QZvlOjlQByBCXf7FrbkL5V9BnF1ntA/bC xTS0WU3nINx5AOu/ElLmQIKzrtYA9UnEI5E4fsfo/MRPdHGYlZVbnS2AQ8cjxpgknc yACumn3tly7GA== Date: Mon, 9 May 2022 16:56:06 +0100 From: Mark Brown To: LABBE Corentin Cc: Andrew Lunn , alexandre.torgue@foss.st.com, calvin.johnson@oss.nxp.com, davem@davemloft.net, edumazet@google.com, hkallweit1@gmail.com, jernej.skrabec@gmail.com, joabreu@synopsys.com, krzysztof.kozlowski+dt@linaro.org, kuba@kernel.org, lgirdwood@gmail.com, linux@armlinux.org.uk, pabeni@redhat.com, peppe.cavallaro@st.com, robh+dt@kernel.org, samuel@sholland.org, wens@csie.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: Re: [PATCH 0/6] arm64: add ethernet to orange pi 3 Message-ID: References: <20220509074857.195302-1-clabbe@baylibre.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="zr6Z+Ap6mhoaAOIZ" Content-Disposition: inline In-Reply-To: X-Cookie: Boycott meat -- suck your thumb. Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --zr6Z+Ap6mhoaAOIZ Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, May 09, 2022 at 05:24:26PM +0200, LABBE Corentin wrote: > Le Mon, May 09, 2022 at 05:19:16PM +0200, Andrew Lunn a =E9crit : > > I'm trying to understand the differences between the two different > > regulators. If you tell me what the PHY is, i might be able to find > > the data sheet, and then understand why two regulators are needed and > > if one needs to be controlled by the PHY driver, not the MDIO bus > > driver. > The schematic for the board is https://linux-sunxi.org/images/5/50/Orange= Pi_3_Schematics_v1.5.pdf > Which show a RTL8211E. Most hardware will want all the regulators for the device turned on or off en masse (possibly in a specific sequence) - it's rare for devices to support only having some of their supplies enabled for extended periods, I'd be surprised if something like a PHY did that. --zr6Z+Ap6mhoaAOIZ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmJ5OZUACgkQJNaLcl1U h9Cv2wf/aIdmWmiQUzvAzeDMdKyyzMe0rAEZxUQEmobo8iKvWcHPao0ApwJso55S RbO7x97qFZYhpLZYHS/1YByP2+PMkdAOcnpHCAda+REafYnhKSyi2+wjMdHbGTU6 87yzIt+QaGDrfC1STKmIa2/1YUIe01ktGk6fWV3uR6azy7VRtZMyZBW4WBhZg3sT IvzG+P5fdDvQcmQEGJWOhnNgfZs9+mVmMtWsbMym1vCmK5Ub8oPL3tJDJ1YLb/8U WosapnoYSDJNUGHaV7vs7HUnqHX/FB/DYB7rPTFOWvJSnuQCTQ4GWV++iKkn85n2 HnUc4Dak9vj5+jmP30vcnGjXahk5Qg== =2ufh -----END PGP SIGNATURE----- --zr6Z+Ap6mhoaAOIZ--