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=0.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_ADSP_ALL, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 42975C3A589 for ; Tue, 20 Aug 2019 15:19:59 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 14E5122DD6 for ; Tue, 20 Aug 2019 15:19:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="i90lD/Bi"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=megous.com header.i=@megous.com header.b="RqPDvgDP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 14E5122DD6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=megous.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=xBHB6hpHBg5OLyJhZcSZh7F7EIFRZ2ioF7Bzd24StzU=; b=i90lD/Bi/rVZD8 MXj46VTuPOr0tx1adhWgS5oOeMMkONTqzQP5zbPHcnazbcf44whFnKdkIb9/7BiUvSkyLF4njjpDz E/tJ8zLfCUpI3WLOBV1mW446FVKeuHAxLgHTv3mndTFaMqYBapTYaA9iXX2HaB5bH58NVZcs3fHRi UJJb2X4U+yJ6RURYquKOxkcNZHotPrLxBIaTRq0zL4UykSWqAbThS796wvkQIqIQGEaGVVuoSetqZ j1E8FcE5fs5teOtgywvpx0PkB1PBeJ2ql+8vn+RGUm2sygHnblLpK/ZON3kwEoH/PBm6Nt4osWnk/ L0T1fm5wHUZG3+sJrdMQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i05vL-00084b-NC; Tue, 20 Aug 2019 15:19:51 +0000 Received: from vps.xff.cz ([195.181.215.36]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i05v7-0007sm-BP for linux-arm-kernel@lists.infradead.org; Tue, 20 Aug 2019 15:19:38 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1566314375; bh=3n0q7CBc9P4bQG/G0hfq9MsM1NWknDFFdma8+IRC/cg=; h=From:To:Cc:Subject:Date:From; b=RqPDvgDPVzlnaRwp8M3IghFK1wQglwVFc5+QYKZLLecgLDG5Wil2dozlnMco/EYls /tTRCmZRHy22lpoHwy9E9Fr/ySqpCuyc55Qs9fnt0P+1UVmbOrWTAtsc86mOFmndqh t3CYfwOjHBGp7SjGsGvlX8D7XF7SfRw54iJgeEMc= From: megous@megous.com To: Alessandro Zummo , Alexandre Belloni , Rob Herring , Mark Rutland , Maxime Ripard , Chen-Yu Tsai Subject: [PATCH v2 0/3] Add basic support for RTC on Allwinner H6 SoC Date: Tue, 20 Aug 2019 17:19:31 +0200 Message-Id: <20190820151934.3860-1-megous@megous.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190820_081937_566430_21A2F474 X-CRM114-Status: GOOD ( 10.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ondrej Jirman , linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ondrej Jirman I went through the datasheets for H6 and H5, and compared the differences. RTCs are largely similar, but not entirely compatible. Incompatibilities are in details not yet implemented by the rtc driver though. I also corrected the clock tree in H6 DTSI. This patchset is necessary for implementing the WiFi/Bluetooth support on boards using H6 SoC. There was some discussion previously of describing HOSC, DCXO and XO oscillators and clocks as part of RTC in DT, but I decided against it because it's not necessary, becuse information that would be provided as a part of DT can already be determined at runtime from RTC registers, so this woudn't add any value and would only introduce complications to the driver. See: https://patchwork.kernel.org/cover/10898083/ Please take a look. Thank you and regards, Ondrej Jirman Changes in v2: - bindings converted to yaml - added reviewed by tags Ondrej Jirman (3): dt-bindings: Add compatible for H6 RTC rtc: sun6i: Add support for H6 RTC arm64: dts: sun50i-h6: Add support for RTC and fix the clock tree .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 13 ++++++ arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 30 +++++++------- drivers/rtc/rtc-sun6i.c | 40 ++++++++++++++++++- 3 files changed, 67 insertions(+), 16 deletions(-) -- 2.22.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel