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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 032C6C43334 for ; Fri, 24 Jun 2022 13:03:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:CC:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SI6sf+3TbLDGtpzYl5C+gVCn8ce+xj76ENVDA7Fdud4=; b=HjgvA1A7lDPrj+ cAwMl5gb9rCCy5G59dG+lPEqASlWstg1+My3r8fWKHsC1Btu1mKvzqmMCO1FEUn1Bk33ML/x3txfv 2Dz69UjoDFCQMdLrfJLRQ068t2WMiykSxfPINJY5d1HiABkpyHwzieSxI785PZi3NIe4CAyRIkTmK Lonj8VxMYAavxXXYPvM/CKUZpUGgb0jPx3XHvO8tX9w5lcZ+F3Q5tMNRYllpD2DirGZ0LP3KMkKjA nkgMN8L7aKjju85kQJYnpVCd66/36RdQq/tYmuQMzRiItXHCQzoE7XZtfyRA7NsSTNfUhGmmWQLC0 j4N+Y5xQF7nyXH6aCzHw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4iwg-002HCS-Mi; Fri, 24 Jun 2022 13:01:58 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o4iwd-002HB3-DO for linux-arm-kernel@lists.infradead.org; Fri, 24 Jun 2022 13:01:57 +0000 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 25OD1arD057664; Fri, 24 Jun 2022 08:01:36 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1656075696; bh=wKIIVX9B8JYUP227NnjRLL2+jjNstya4gK76fNwyOAk=; h=Date:From:To:CC:Subject:References:In-Reply-To; b=lEpWPRGyud0Fo6Rl7uVhgn4HCA4AdMKTH9/pMlSVPSjLyDiDUQ3jvUvT52ByUIFH8 GjUQhjFCW9zPkbrLQjv91ga2LW8PU7TsexZ7lpU1cQz0PQyVTvXJ13pm+Jd3W3YFVl 4CdmBtOYQ1gpN17RcmggOIY5lfCiMgt10rS37RY4= Received: from DFLE110.ent.ti.com (dfle110.ent.ti.com [10.64.6.31]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 25OD1aOv039910 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 24 Jun 2022 08:01:36 -0500 Received: from DFLE106.ent.ti.com (10.64.6.27) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 24 Jun 2022 08:01:36 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE106.ent.ti.com (10.64.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Fri, 24 Jun 2022 08:01:36 -0500 Received: from jti (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with SMTP id 25OD1TAa115638; Fri, 24 Jun 2022 08:01:30 -0500 Date: Fri, 24 Jun 2022 16:01:28 +0300 From: Georgi Vlaev To: Nishanth Menon CC: Krzysztof Kozlowski , Rob Herring , Alexandre Belloni , Alessandro Zummo , , , , , Vignesh Raghavendra , Andrew Davis Subject: Re: [PATCH V4 2/2] rtc: Introduce ti-k3-rtc Message-ID: References: <20220623170808.20998-1-nm@ti.com> <20220623170808.20998-3-nm@ti.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220623170808.20998-3-nm@ti.com> X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220624_060155_663259_1C5A5154 X-CRM114-Status: GOOD ( 15.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, On Thu, Jun 23, 2022 at 12:08:08PM -0500, Nishanth Menon wrote: > Introduce support for Texas Instruments Real Time Clock controller on > newer K3 family of SoCs such as AM62x. > > The hardware module that is being supported is the "digital only" > version which doesn't have capability of external wakeup sources and > external power backup. However, for many practical applications, this > should suffice as RTC is operational across low power sequences. > > The hardware block by itself is split into two distinct domains > internally to further reduce the power consumption with the actual > counter block and comparators clocked off a 32k clock source (which > based on SoC integration can be sourced by an external crystal) and an > register interface block which is driven by the bus clock. While optimal > from power perspective, it does create some complicated synchronizations > and sequences that one must be wary of in the driver handling. > > Acked-by: Andrew Davis > Signed-off-by: Nishanth Menon > --- > Changes since V3: > * Updates for fixing typos, removal of un-necessary prints, sharpen > usage of ret Tested on SK-AM62 (AM625). Tested-by: Georgi Vlaev Regards, Georgi _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel