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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54477C48BE7 for ; Sat, 22 Jun 2019 09:55:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2E73B20673 for ; Sat, 22 Jun 2019 09:55:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726310AbfFVJzR convert rfc822-to-8bit (ORCPT ); Sat, 22 Jun 2019 05:55:17 -0400 Received: from mout.kundenserver.de ([212.227.17.13]:50825 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726112AbfFVJzQ (ORCPT ); Sat, 22 Jun 2019 05:55:16 -0400 Received: from [192.168.1.162] ([37.4.249.111]) by mrelayeu.kundenserver.de (mreue106 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MG9wg-1hoT1Z3SrE-00GYeg; Sat, 22 Jun 2019 11:54:49 +0200 Subject: Re: [PATCH v4 0/7] cpufreq support for Raspberry Pi From: Stefan Wahren To: Stephen Boyd , Mike Turquette Cc: Florian Fainelli , Nicolas Saenz Julienne , linux-kernel@vger.kernel.org, mbrugger@suse.de, viresh.kumar@linaro.org, rjw@rjwysocki.net, eric@anholt.net, bcm-kernel-feedback-list@broadcom.com, ptesarik@suse.com, linux-rpi-kernel@lists.infradead.org, ssuloev@orpaltech.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org References: <20190612182500.4097-1-nsaenzjulienne@suse.de> <6a9e1450-80ad-a13c-59d2-d0b39f25f67e@gmail.com> <7acfd967-0a82-5429-4eed-8b802e6620f5@i2se.com> Openpgp: preference=signencrypt Autocrypt: addr=stefan.wahren@i2se.com; keydata= xsFNBFt6gBMBEACub/pBevHxbvJefyZG32JINmn2bsEPX25V6fejmyYwmCGKjFtL/DoUMEVH DxCJ47BMXo344fHV1C3AnudgN1BehLoBtLHxmneCzgH3KcPtWW7ptj4GtJv9CQDZy27SKoEP xyaI8CF0ygRxJc72M9I9wmsPZ5bUHsLuYWMqQ7JcRmPs6D8gBkk+8/yngEyNExwxJpR1ylj5 bjxWDHyYQvuJ5LzZKuO9LB3lXVsc4bqXEjc6VFuZFCCk/syio/Yhse8N+Qsx7MQagz4wKUkQ QbfXg1VqkTnAivXs42VnIkmu5gzIw/0tRJv50FRhHhxpyKAI8B8nhN8Qvx7MVkPc5vDfd3uG YW47JPhVQBcUwJwNk/49F9eAvg2mtMPFnFORkWURvP+G6FJfm6+CvOv7YfP1uewAi4ln+JO1 g+gjVIWl/WJpy0nTipdfeH9dHkgSifQunYcucisMyoRbF955tCgkEY9EMEdY1t8iGDiCgX6s 50LHbi3k453uacpxfQXSaAwPksl8MkCOsv2eEr4INCHYQDyZiclBuuCg8ENbR6AGVtZSPcQb enzSzKRZoO9CaqID+favLiB/dhzmHA+9bgIhmXfvXRLDZze8po1dyt3E1shXiddZPA8NuJVz EIt2lmI6V8pZDpn221rfKjivRQiaos54TgZjjMYI7nnJ7e6xzwARAQABzSlTdGVmYW4gV2Fo cmVuIDxzdGVmYW4ud2FocmVuQGluLXRlY2guY29tPsLBdwQTAQgAIQUCXIdehwIbAwULCQgH AgYVCAkKCwIEFgIDAQIeAQIXgAAKCRCUgewPEZDy2yHTD/9UF7QlDkGxzQ7AaCI6N95iQf8/ 1oSUaDNu2Y6IK+DzQpb1TbTOr3VJwwY8a3OWz5NLSOLMWeVxt+osMmlQIGubD3ODZJ8izPlG /JrNt5zSdmN5IA5f3esWWQVKvghZAgTDqdpv+ZHW2EmxnAJ1uLFXXeQd3UZcC5r3/g/vSaMo 9xek3J5mNuDm71lEWsAs/BAcFc+ynLhxwBWBWwsvwR8bHtJ5DOMWvaKuDskpIGFUe/Kb2B+j ravQ3Tn6s/HqJM0cexSHz5pe+0sGvP+t9J7234BFQweFExriey8UIxOr4XAbaabSryYnU/zV H9U1i2AIQZMWJAevCvVgQ/U+NeRhXude9YUmDMDo2sB2VAFEAqiF2QUHPA2m8a7EO3yfL4rM k0iHzLIKvh6/rH8QCY8i3XxTNL9iCLzBWu/NOnCAbS+zlvLZaiSMh5EfuxTtv4PlVdEjf62P +ZHID16gUDwEmazLAMrx666jH5kuUCTVymbL0TvB+6L6ARl8ANyM4ADmkWkpyM22kCuISYAE fQR3uWXZ9YgxaPMqbV+wBrhJg4HaN6C6xTqGv3r4B2aqb77/CVoRJ1Z9cpHCwiOzIaAmvyzP U6MxCDXZ8FgYlT4v23G5imJP2zgX5s+F6ACUJ9UQPD0uTf+J9Da2r+skh/sWOnZ+ycoHNBQv ocZENAHQf87BTQRbeoATARAA2Hd0fsDVK72RLSDHby0OhgDcDlVBM2M+hYYpO3fX1r++shiq PKCHVAsQ5bxe7HmJimHa4KKYs2kv/mlt/CauCJ//pmcycBM7GvwnKzmuXzuAGmVTZC6WR5Lk akFrtHOzVmsEGpNv5Rc9l6HYFpLkbSkVi5SPQZJy+EMgMCFgjrZfVF6yotwE1af7HNtMhNPa LDN1oUKF5j+RyRg5iwJuCDknHjwBQV4pgw2/5vS8A7ZQv2MbW/TLEypKXif78IhgAzXtE2Xr M1n/o6ZH71oRFFKOz42lFdzdrSX0YsqXgHCX5gItLfqzj1psMa9o1eiNTEm1dVQrTqnys0l1 8oalRNswYlQmnYBwpwCkaTHLMHwKfGBbo5dLPEshtVowI6nsgqLTyQHmqHYqUZYIpigmmC3S wBWY1V6ffUEmkqpAACEnL4/gUgn7yQ/5d0seqnAq2pSBHMUUoCcTzEQUWVkiDv3Rk7hTFmhT sMq78xv2XRsXMR6yQhSTPFZCYDUExElEsSo9FWHWr6zHyYcc8qDLFvG9FPhmQuT2s9Blx6gI 323GnEq1lwWPJVzP4jQkJKIAXwFpv+W8CWLqzDWOvdlrDaTaVMscFTeH5W6Uprl65jqFQGMp cRGCs8GCUW13H0IyOtQtwWXA4ny+SL81pviAmaSXU8laKaRu91VOVaF9f4sAEQEAAcLBXwQY AQIACQUCW3qAEwIbDAAKCRCUgewPEZDy2+oXD/9cHHRkBZOfkmSq14Svx062PtU0KV470TSn p/jWoYJnKIw3G0mXIRgrtH2dPwpIgVjsYyRSVMKmSpt5ZrDf9NtTbNWgk8VoLeZzYEo+J3oP qFrTMs3aYYv7e4+JK695YnmQ+mOD9nia915tr5AZj95UfSTlyUmyic1d8ovsf1fP7XCUVRFc RjfNfDF1oL/pDgMP5GZ2OwaTejmyCuHjM8IR1CiavBpYDmBnTYk7Pthy6atWvYl0fy/CqajT Ksx7+p9xziu8ZfVX+iKBCc+He+EDEdGIDhvNZ/IQHfOB2PUXWGS+s9FNTxr/A6nLGXnA9Y6w 93iPdYIwxS7KXLoKJee10DjlzsYsRflFOW0ZOiSihICXiQV1uqM6tzFG9gtRcius5UAthWaO 1OwUSCQmfCOm4fvMIJIA9rxtoS6OqRQciF3crmo0rJCtN2awZfgi8XEif7d6hjv0EKM9XZoi AZYZD+/iLm5TaKWN6oGIti0VjJv8ZZOZOfCb6vqFIkJW+aOu4orTLFMz28aoU3QyWpNC8FFm dYsVua8s6gN1NIa6y3qa/ZB8bA/iky59AEz4iDIRrgUzMEg8Ak7Tfm1KiYeiTtBDCo25BvXj bqsyxkQD1nkRm6FAVzEuOPIe8JuqW2xD9ixGYvjU5hkRgJp3gP5b+cnG3LPqquQ2E6goKUML AQ== Message-ID: Date: Sat, 22 Jun 2019 11:54:47 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: <7acfd967-0a82-5429-4eed-8b802e6620f5@i2se.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Content-Language: en-US X-Provags-ID: V03:K1:kNVNWkAjuEb7vVPkGdiQQKKmCJU8LtLX0sh+gtr0KzMusrY4L1K WyeiwBUxZtVlmhaLqVUZkU865SX7UDf78Q+0dQ2L2wKmqwMhCSPNpqlYL7GHgb4CSrkewru EkvEVQlUmXu0zESbj+3YvSykrgtvGogfULKzeWL/31pQ+iqSakaY4pcTVvqcgOip1ViKSo3 HJQZUEPr/2G+/NI2n1SDA== X-UI-Out-Filterresults: notjunk:1;V03:K0:4OBIfy33c0Q=:sW/r3Ga/IfW0VsTiAv6ve/ xYL0+TlPU1HSAZaE3jL9vbAvIpe0zwOOlJUtIKra2OkwV6r73fLvbKw3M6BHtwVqXlVyrjGeO +UGUtSbTWXOtRXPnV1TnSqs04JnRZyInCYqN08opCGsy11/3imhIoo/UsL3glMUYr+djkOTQi yJB7udc+6zSEIhj8Tc+/Q2pD7ooWYuhN/rMqjDRk0oAyLPhPWNhrDfQ5TSC6NXhrmR/F1g03Z fQMzSyuPyveUuXiSh1hRcQQt2rGm4P7nnD2RPlFjDNqwrLd8rMRFXEOf9JTo4cEdoNwQeVuOA NC/owZOW0/KmiOC/vUhFqTmef4ELCMs6wsbR8dKJbRJavzc68CPq8MqQjlUvuzRzkm3RxmXq6 KMQsOhGkacGoZLGaVE1WmrkNoe+hHXWK8SnD/iMJJsK5K4spmAaepIVLM5tEwuTEBYAAgyUF8 GB6nFPs1fGqEWKxIIU98MJWJCMXOFEocqMB0U+r0E9BR24Tc+mz16SDLtXpXhPT8jkCaDFjDG Kkruupffgf4kkX1QURUS6CEr44W677rCEcORWszvZg/zBo7mSTcQFW0vKK3/RtgNeP6Wtxp56 4z740VPg0lfNVXuLGMiJIb90WsHn0hypWcWjAO2XcU1rnAKQGhoycfhLAx3MDiuJGjSfoFYiu wEx6rXbBV/sTIzdUR8K2Cfd7EUwisqJ5nuJNQ1cAZBBUa59j+AKk1v3xBAmZBetuM4gngObs1 FVJO94Ics+gfHODofTZvPoWntmJ2UBmNTlx/Q1q5HYycMxGDdfg/b2Aum+4= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Stephen, hi Mike, Am 13.06.19 um 06:31 schrieb Stefan Wahren: > Hi Florian, > hi Stephen, > > Am 13.06.19 um 05:31 schrieb Florian Fainelli: >> On 6/12/2019 11:24 AM, Nicolas Saenz Julienne wrote: >>> Hi all, >>> this aims at adding cpufreq support to the Raspberry Pi family of >>> boards. >>> >>> The series first factors out 'pllb' from clk-bcm2385 and creates a new >>> clk driver that operates it over RPi's firmware interface[1]. We are >>> forced to do so as the firmware 'owns' the pll and we're not allowed to >>> change through the register interface directly as we might race with the >>> over-temperature and under-voltage protections provided by the firmware. >>> >>> Next it creates a minimal cpufreq driver that populates the CPU's opp >>> table, and registers cpufreq-dt. Which is needed as the firmware >>> controls the max and min frequencies available. >>> >>> This was tested on a RPi3b+ and RPI2b, both using multi_v7_defconfig and >>> arm64's defconfig. >> How do we go about merging this? Stefan, will you pick up patch 3, 6 and >> 7 and submit them for 5.3/5.4? Viresh has already picked up patch 4. > is it possible to let patches 1,2, 3 and 5 go via clk-tree? > > I would take care of 6 and 7. > > Stefan are you fine with the series, since Viresh already picked up patch 4? are you okay with my suggestion above? Stefan