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 49CF7C47DAF for ; Thu, 18 Jan 2024 16:08:20 +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=oHwz5Tec4hXxtv71TPuN5QCnna/sGV5XVInMBxHYCLQ=; b=VRnlI2agfsL6VA oxxxy6qTjLlCqJw0ySJI8cCWshDsj5B80t9um7NTrcMgmvuIxVpzW/Z+bpBViO5q2mLFQyo++ESnQ vjjKsKBqy40dDCsZZ75On0sM6CVXXVqgBjQV0LWCdAzgd4/t1wpZ7HdNYGKybcJhUrJRtd1qMgStt FFoPuNZ6D3Qpuqug4yXSsit11mIDVxGDSECdygkVDriXHuNUsoAChAkcR5nRcavu5M5K+GRTeNw+p 1SV7hcPyyRVhvj4ya+AX3oC0PH8OWsQRWmemP70WkiDaqasBnAfwl+wXlpJL4NywAJu8PtUZH3PJk aS+3V27o2tFWf6MC2Rdg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rQUvi-003CQN-1C; Thu, 18 Jan 2024 16:07:46 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rQUve-003COk-1N for linux-arm-kernel@lists.infradead.org; Thu, 18 Jan 2024 16:07:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=kDnqCJc6DdlPkC0AYd50uBaKkZtlxVtjgN6JvECPsPU=; b=TbyIEquIRD1S0207D7QoRD0DZL wLyxrQ/QjWvcHfkRlGyM/4Tdrxxn0s1i1I3VAkS40hYxblU7YWvT1WHTjzjPxQ9Uh3Vuy/T8xnAg/ IifACYSU2Gq+h7UzcW8tbSsVybtg1J04beB2tcbE1QTQ3QwXBSaQ6GjyuVhoa98K3XjZetCy4PtAp afDHhcUkrDzMUe/lKBxfAIQkErTweyAL3Nt++bKUeKzABf170xeixEQXstZzOjp1UxuAtpIrWe75o NXXqFBjyESoZwj01ZABE+QFTPwmnCDSkstL7hPTG66NXtI8iGWm+icZHfTzl3zo7MhzDOaGFHYaeW kSr+xOzA==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:52464) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rQUvC-0005rd-1f; Thu, 18 Jan 2024 16:07:14 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1rQUvA-0005qW-AB; Thu, 18 Jan 2024 16:07:12 +0000 Date: Thu, 18 Jan 2024 16:07:12 +0000 From: "Russell King (Oracle)" To: Josua Mayer Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Yazan Shhady , Jon Nettleton , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: dts: imx6qdl-hummingboard: Add rtc0 and rtc1 aliases to fix hctosys Message-ID: References: <20240118-imx6-hb-primary-rtc-v1-1-81b87935c557@solid-run.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20240118-imx6-hb-primary-rtc-v1-1-81b87935c557@solid-run.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240118_080742_487388_F9128D87 X-CRM114-Status: GOOD ( 13.79 ) 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 On Thu, Jan 18, 2024 at 04:01:10PM +0100, Josua Mayer wrote: > HummingBoard has two RTCs, first integrated within SoC that can be used to > wake up from sleep - and a second on the carrier board including back-up > battery which is intended for keeping time during power-off. > > Add aliases for both, ensuring that the battery-backed clock is primary > rtc and used by default during boot for restoring system time. Given that the snvs RTC isn't battery backed, should we even be enabling that in DT? Also, have you seen any issues such as: [ 0.933249] rtc-pcf8523 0-0068: failed to set xtal load capacitance: -11 [ 0.933505] rtc-pcf8523: probe of 0-0068 failed with error -11 which seems to be exhibiting itself on my SolidSense board? -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel