From patchwork Thu May 7 23:38:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 200914 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=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=no 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 EC9FFC4724C for ; Thu, 7 May 2020 23:38:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D664E206B9 for ; Thu, 7 May 2020 23:38:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726519AbgEGXi4 (ORCPT ); Thu, 7 May 2020 19:38:56 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:39356 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726476AbgEGXi4 (ORCPT ); Thu, 7 May 2020 19:38:56 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id 86648803087C; Thu, 7 May 2020 23:38:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id HxFt07LMQQVN; Fri, 8 May 2020 02:38:50 +0300 (MSK) From: Serge Semin To: Sebastian Reichel CC: Serge Semin , Serge Semin , Alexey Malahov , Maxim Kaurkin , Pavel Parkhomenko , Ramil Zaripov , Ekaterina Skachko , Vadim Vlasov , Alexey Kolotnikov , Thomas Bogendoerfer , Paul Burton , Ralf Baechle , Arnd Bergmann , Allison Randal , Richard Fontana , Kate Stewart , Thomas Gleixner , Rob Herring , , , , Subject: [PATCH v2 0/3] syscon: Alter syscon and reboot drivers Date: Fri, 8 May 2020 02:38:43 +0300 Message-ID: <20200507233846.11548-1-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20200306130356.6ABDD8030703@mail.baikalelectronics.ru> References: <20200306130356.6ABDD8030703@mail.baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This is a small patchset about tuning the syscon infrastructure a bit. As it's going to be general in the framework of the Baikal-T1 SoC support integration into the kernel, we suggest to replace the legacy text-based syscon-reboot-mode dts-bindings file with yaml-based one. Then seeing a syscon reboot block is normally expected to be a part of a system controller and based on the discussion https://lore.kernel.org/linux-pm/20200306130402.1F4F0803079F@mail.baikalelectronics.ru/ we decided to alter the syscon reboot driver so one would also try to fetch the syscon registers map from a parental DT node. regmap property is left supported although it's marked as deprecated from now. This patchset is rebased and tested on the mainline Linux kernel 5.7-rc4: 0e698dfa2822 ("Linux 5.7-rc4") tag: v5.7-rc4 Changelog v2: - Add Sebastian' Acked-by tag to patch 1. - Use a shorter summary describing the bindings modification patches. - Our corporate email server doesn't change Message-Id anymore, so the patchset is resubmitted being in the cover-letter-threaded format. - Discard patch with syscon "-endian" property support. As Rob said It shall be in the common dt-schema. - Replace patches of adding a regmap property support to the syscon-reboot-mode with patches making syscon-reboot a sub-node of a system controller node. - Mark regmap property as deprecated from now. Signed-off-by: Serge Semin Cc: Alexey Malahov Cc: Maxim Kaurkin Cc: Pavel Parkhomenko Cc: Ramil Zaripov Cc: Ekaterina Skachko Cc: Vadim Vlasov Cc: Alexey Kolotnikov Cc: Thomas Bogendoerfer Cc: Paul Burton Cc: Ralf Baechle Cc: Arnd Bergmann Cc: Allison Randal Cc: Richard Fontana Cc: Kate Stewart Cc: Thomas Gleixner Cc: Rob Herring Cc: linux-mips@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Serge Semin (3): dt-bindings: power: reset: Convert syscon-reboot-mode to DT schema dt-bindings: power: reset: Unrequire regmap property in syscon-reboot node power: reset: syscon-reboot: Add parental syscon support .../power/reset/syscon-reboot-mode.txt | 35 ------------ .../power/reset/syscon-reboot-mode.yaml | 55 +++++++++++++++++++ .../bindings/power/reset/syscon-reboot.yaml | 15 +++-- drivers/power/reset/syscon-reboot.c | 7 ++- 4 files changed, 70 insertions(+), 42 deletions(-) delete mode 100644 Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.txt create mode 100644 Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml