From patchwork Mon Oct 18 15:19:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 1542746 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4HY0sm4gZdz9ssP for ; Tue, 19 Oct 2021 02:19:40 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232363AbhJRPVu (ORCPT ); Mon, 18 Oct 2021 11:21:50 -0400 Received: from relay11.mail.gandi.net ([217.70.178.231]:51941 "EHLO relay11.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232852AbhJRPVt (ORCPT ); Mon, 18 Oct 2021 11:21:49 -0400 Received: (Authenticated sender: alexandre.belloni@bootlin.com) by relay11.mail.gandi.net (Postfix) with ESMTPSA id 3878B100004; Mon, 18 Oct 2021 15:19:37 +0000 (UTC) From: Alexandre Belloni To: Alessandro Zummo Cc: linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH v2 0/7] rtc: add new ioctl interface and BSM support Date: Mon, 18 Oct 2021 17:19:26 +0200 Message-Id: <20211018151933.76865-1-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org This adds a new ioctl interface allowing to get and set extended parameters on RTCs. While its main goal is to support backup switch mode, it also intends to fix a long time issue. Until now, it was not possible to know what features were supported by an RTC before actually trying to make use of it and see that succeed or fail. In order to make tests more reliable and allow userspace to take the correct decision, the features are now exposed. Changes in v2: - Fix rv3032 direct mode value - return earlier once BSM is set Alexandre Belloni (7): rtc: add alarm related features rtc: add parameter ioctl rtc: expose correction feature rtc: add correction parameter rtc: add BSM parameter rtc: rv3028: add BSM support rtc: rv3032: allow setting BSM drivers/rtc/class.c | 3 ++ drivers/rtc/dev.c | 65 ++++++++++++++++++++++++++++++++++ drivers/rtc/rtc-rv3028.c | 74 ++++++++++++++++++++++++++++++++++++++ drivers/rtc/rtc-rv3032.c | 76 ++++++++++++++++++++++++++++++++++++++++ include/linux/rtc.h | 2 ++ include/uapi/linux/rtc.h | 31 +++++++++++++++- 6 files changed, 250 insertions(+), 1 deletion(-)