From patchwork Mon Jun 28 16:45:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: WANG Xuerui X-Patchwork-Id: 12348333 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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 6EA42C49EBE for ; Mon, 28 Jun 2021 16:52:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 666DB6198D for ; Mon, 28 Jun 2021 16:52:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232000AbhF1Qy3 (ORCPT ); Mon, 28 Jun 2021 12:54:29 -0400 Received: from [115.28.160.31] ([115.28.160.31]:51242 "EHLO mailbox.box.xen0n.name" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S231932AbhF1Qy2 (ORCPT ); Mon, 28 Jun 2021 12:54:28 -0400 Received: from ld50.lan (unknown [101.224.80.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by mailbox.box.xen0n.name (Postfix) with ESMTPSA id 4948E600FB; Tue, 29 Jun 2021 00:46:07 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1624898767; bh=K00bWN9N6quhHB2UCZGpFJGeUMBWxcPISNFhcBwXLFM=; h=From:To:Cc:Subject:Date:From; b=DKx/F2t66nx50RoHm8ZkKuY2ERNnc0P6pMlJng2PWpm3NnPflmWVUx08MMRZFxzJs GGJB1f/h5EbojfBOS20gScM6QpLWkIB7W45xsKm/k4AKyHnKBeew3ftY5f/Cgi7vNa J3ezTpaJzFprKeIVPDgFBVLoTdpafHcw3o9SJZoQ= From: WANG Xuerui To: linux-rtc@vger.kernel.org Cc: WANG Xuerui , linux-mips@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v4 0/6] rtc: ls2x: Add support for the Loongson-2K/LS7A RTC Date: Tue, 29 Jun 2021 00:45:46 +0800 Message-Id: <20210628164552.1006079-1-git@xen0n.name> X-Mailer: git-send-email 2.30.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Here is the 4th revision of the series; the review mail got lost in my inbox so this is a bit late, sorry for the delay! The previous revision is tested on Loongson-2K by Jiaxun Yang, and this revision contains no functional changes so should work on 2K too. I compiled and tested this revision on a Loongson-3A4000 & LS7A system. This patch series adds support for the RTC module found on various Loongson systems with the Loongson-2K SoC or the LS7A bridge chip. The driver is rewritten from an out-of-tree version to meet mainline standards. I write kernel code as a hobby, though, so there might still be overlooked issues. Any suggestions are welcome. This series is based on next-20210628, but should apply cleanly on rtc-next too. v4: - Rebased on top of next-20210628 - Added Jiaxun's Tested-by tag for Loongson-2K - Addressed all review comments from v3 - Rewritten field operations with FIELD_GET/FIELD_PREP - Removed all error logs - Removed unnecessary spinlocking (RTC core already protects against concurrent device file operations) v3: - Fixed compile error not discovered after rebase (blame sleep deprivation) - Tested on Loongson-3A4000 (still need testing on Loongson-2K) v2: - Rebased on top of latest linux-next - Updated Huacai's e-mail address to the kernel.org one - Added collected tags - Added adaptation for newly upstreamed Loongson-2K platforms WANG Xuerui (6): rtc: ls2x: Add support for the Loongson-2K/LS7A RTC dt-bindings: rtc: Add bindings for LS2X RTC MIPS: Loongson64: DTS: Add RTC support to LS7A MIPS: Loongson: Enable LS2X RTC in loongson3_defconfig MIPS: Loongson64: DTS: Add RTC support to Loongson-2K MIPS: Loongson: Enable LS2X RTC in loongson2k_defconfig .../devicetree/bindings/rtc/trivial-rtc.yaml | 2 + .../boot/dts/loongson/loongson64-2k1000.dtsi | 5 + arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 5 + arch/mips/configs/loongson2k_defconfig | 1 + arch/mips/configs/loongson3_defconfig | 1 + drivers/rtc/Kconfig | 11 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-ls2x.c | 184 ++++++++++++++++++ 8 files changed, 210 insertions(+) create mode 100644 drivers/rtc/rtc-ls2x.c base-commit: 3579aa488520feeda433ceca23ef4704bf8cd280