From patchwork Mon Aug 12 23:28:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Hilman X-Patchwork-Id: 171137 Delivered-To: patch@linaro.org Received: by 2002:a92:d204:0:0:0:0:0 with SMTP id y4csp155099ily; Mon, 12 Aug 2019 16:28:55 -0700 (PDT) X-Google-Smtp-Source: APXvYqxICbNOn3KBSQeJNtxLqNzBuVyDNWyJJZvkYVxwsoXi/m/hf5Zi1cXYP/+J1pefOxxOU5Ec X-Received: by 2002:a17:90a:1a45:: with SMTP id 5mr1573303pjl.43.1565652535214; Mon, 12 Aug 2019 16:28:55 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565652535; cv=none; d=google.com; s=arc-20160816; b=HYIZIjyPGmSaeXZjJRcRRef8nP0aCY/bUF2OlmQz45TnK0yr5sG+Wxb2MEF2nBVq9F 8HEL7X3Q3pCCLI8T90vykgJMG7hfv0qkda0aFq5FC7lK/H/GjS7iWbYrDSlcFJGS0Wun nLUBjmn607dgcjDfPRNfNep1P+fNbR+bSv5tULYpvghI3BHOFmp+hzjwH13C7Jd5LTC0 2TYX4mNvA7r1YeDTUU9QA5dHne6O0qx0eBb5fqoqawsJDOjXmuRUbDGENSFtUVW806pP KHlnt5zaf03GuYOCv9p27aczN4ZVHalEydHZKW4nAfJ4Si9b53c5Qz8qlFe/U4Tv+ASs 8lTg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=BY7YILlSEKnuSEcoBD7N6eZTQdqrpvS3Tq83vIYj2eM=; b=LEVIFqHL+yUVx+3PbeXXCWa5QpNmLMa0i3qgQRUeM/m/xy2TziXJy9TTTpRmoqOrwr B92zZSMfbSnggPjRH6rGkKJWynICYSoh8+sgi/NoP38nSAB2pqpf/+4lff0V+8tyFEch Cwbh/Ib5ZuomTlhymwFkKYM7f8zmEDmDiW4rAUq+mPcE/qUyVYBqW/bCSwK3vaheR+KS NFubZJI5FdJAkzkTs9hQeanKdjiRuxMYwS5+5MCokLERN7Pk8D9PyF0tPB0Z1YS7WciD G6EnrcFAX8ToOUOa6RlZWToRCsdGWWwil3WZwr+7I8aKkxpHng6SRIDGUylISw7f6/3H Wv5A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=SgRawVWO; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x6si6748918pgg.188.2019.08.12.16.28.54; Mon, 12 Aug 2019 16:28:55 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=SgRawVWO; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726200AbfHLX2y (ORCPT + 8 others); Mon, 12 Aug 2019 19:28:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:59962 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726144AbfHLX2x (ORCPT ); Mon, 12 Aug 2019 19:28:53 -0400 Received: from localhost (c-71-197-186-152.hsd1.wa.comcast.net [71.197.186.152]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CA3F620665; Mon, 12 Aug 2019 23:28:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565652532; bh=ahoNLQPnX82nGz86Y7FW3a1cpXocBYRKZ1y2smEqp9A=; h=From:To:Cc:Subject:Date:From; b=SgRawVWOSYB+zs6GRhqN0CAZz+chFVi+ssW8Bfm5yd2twCRJEsMoVGuyJ3Z6aUSFU eJ+T6/YYkUkqs+sdXgx9YMhB4k4QkyMQHc44qM4jTCyAlK4bormafrCFgWhr2zhcxz Agqf5Ba9N/0iGYbhfQDN1m5mSeXM1yChtFD/51mM= From: Kevin Hilman To: Alexandre Belloni , linux-rtc@vger.kernel.org Cc: linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Neil Armstrong , devicetree@vger.kernel.org Subject: [PATCH v3 0/2] rtc: add new Amlogic Virtual Wake RTC Date: Mon, 12 Aug 2019 16:28:48 -0700 Message-Id: <20190812232850.8016-1-khilman@kernel.org> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Kevin Hilman Add a new driver for the virtual wake RTC on Amlogic SoCs. The RTC is virtual from the Linux side because it's a hardware timer managed by firmware on the secure co-processor (SCP.) The interface is 1 register where a wakeup time (in seconds) is written. The SCP then uses this value to program an always-on timer. Changes since v2: - switch to devm_platform_ioremap_resource() - switch to devm_rtc_allocate_device() and rtc_register_device() Changes since v1: - add MAINTAINERS entry - add nop ->alarm_irq_enable() (workaround for RTC core limitation pointed out by Alexandre Belloni) - remove unused ->read_alarm() - fix statics - move resume to dev_pm_ops - add suspend hook - don't calculate (or write) the alarm timer value until suspend time Changes since Neil's original version - move from do_gettimeofday() to ktime_get() Kevin Hilman (1): dt-bindings: rtc: new binding for Amlogic VRTC Neil Armstrong (1): rtc: Add Amlogic Virtual Wake RTC .../bindings/rtc/rtc-meson-vrtc.txt | 22 +++ MAINTAINERS | 1 + drivers/rtc/Kconfig | 11 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-meson-vrtc.c | 156 ++++++++++++++++++ 5 files changed, 191 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt create mode 100644 drivers/rtc/rtc-meson-vrtc.c -- 2.22.0