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 C3657C44536 for ; Wed, 21 Jan 2026 16:56:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id: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-Owner; bh=dm7XchuQ7EtTYN/0CYHS1O1+uc7M2nKMlAI6E0+znro=; b=oop2w91P1cqgwoEIZn+vk7zvGv fG6H0DVwYN37yNTzfs1KJUrqG0qaSLNVOtUAEi961frkjQ4o2IQlnhX9x5be1xi473ihFOYFTrqPx VnfH8Y6V3bQp2zNIktZUf6I6aFyd6JTWy1Qg8XYM00bd9WSPqk72mL73amE3+4VPWa8d3Dkz1lVPS Cjzy/kC6+rDGB0Np3+O/wF5ORow5V2z+Ltv7263laXDWZ+8H50koCR7GlrCWO9nl8nEpwVo4awBPc Y0ryN6SlHWhwJi9x91aw7eB7vpcGBsotow2bc1YXbKePL8DGM294jD3p6vjQmVYm5cwdVv6F2typl v6sjyKDQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vibVX-00000005pv2-1XZy; Wed, 21 Jan 2026 16:56:39 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vibVV-00000005puB-0bE6 for linux-arm-kernel@lists.infradead.org; Wed, 21 Jan 2026 16:56:37 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 7DBBC60152; Wed, 21 Jan 2026 16:56:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 18D08C4CEF1; Wed, 21 Jan 2026 16:56:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769014594; bh=z6ncdW1tF9rL0/zlvdL9Ux7pYtvgWh2A0N0+vyjHyGA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XFk3fnG7osBlyl3ml764DVFHhbwUZIABeT1VrstE1l2ROLa/nx2XDArVU1Zd+7+FD uW5E3IZZ+1AgpfP24oQ9ooG5pqzuIIryO1KtY3tVj00ogJpBAnQ27N3EVuU0ovDb8t 3WDc8LLi1gJqg4yZqJSG2aSBsTOYX+ktPd6j81UgjbUf28fyxhx+osy15jmWrCq4EQ uzoA6kLYsi2cm6U0V8c8FgT4DtJZCyeszqcXrjyUJ2DCeOK0Z7drctfitn2CvOE+NM /6BFxL7TB1j4At/HQrJoAKH550exBh4mzA/Yp1nmMIgVPDk+j8/XaMz3wIBVE5ZQyn N5eCElyvjp6hA== Date: Wed, 21 Jan 2026 10:56:33 -0600 From: "Rob Herring (Arm)" To: Junhui Liu Cc: Jernej Skrabec , Alexandre Belloni , linux-rtc@vger.kernel.org, Maxime Ripard , Chen-Yu Tsai , devicetree@vger.kernel.org, Krzysztof Kozlowski , Conor Dooley , linux-kernel@vger.kernel.org, Samuel Holland , linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Michael Turquette , Stephen Boyd , linux-sunxi@lists.linux.dev Subject: Re: [PATCH 1/7] dt-bindings: rtc: sun6i: Add Allwinner A733 support Message-ID: <176901459264.3452980.894788621483141855.robh@kernel.org> References: <20260121-a733-rtc-v1-0-d359437f23a7@pigmoral.tech> <20260121-a733-rtc-v1-1-d359437f23a7@pigmoral.tech> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260121-a733-rtc-v1-1-d359437f23a7@pigmoral.tech> 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 21 Jan 2026 18:59:07 +0800, Junhui Liu wrote: > The RTC module in the Allwinner A733 SoC is functionally compatible with > the sun6i RTC, but its internal Clock Control Unit (CCU) has significant > changes. > > The A733 supports selecting the oscillator between three frequencies: > 19.2MHz, 24MHz, and 26MHz. The RTC CCU relies on hardware to detect > which frequency is actually used on the board. By defining all three > frequencies as fixed-clocks in the device tree, the driver can identify > the hardware-detected frequency and expose it to the rest of the system. > > Additionally, the A733 RTC CCU provides several new DCXO gate clocks for > specific modules, including SerDes, HDMI, and UFS. > > Signed-off-by: Junhui Liu > --- > .../bindings/rtc/allwinner,sun6i-a31-rtc.yaml | 38 ++++++++++++++++++++-- > include/dt-bindings/clock/sun60i-a733-rtc.h | 16 +++++++++ > 2 files changed, 52 insertions(+), 2 deletions(-) > Reviewed-by: Rob Herring (Arm)