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=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 4818DC47404 for ; Mon, 7 Oct 2019 12:33:01 +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 1ABF3206C0 for ; Mon, 7 Oct 2019 12:33:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="dFSxJnlU"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="p7HRMnK6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1ABF3206C0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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:In-Reply-To:MIME-Version:References: Message-ID:Subject: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=nsDb+TjkYLkwF4p5APD8Uz7Kxv1MSvDBP6YpiBtWCIU=; b=dFSxJnlUCLueh+ HQRVD8ycQWH/jebr02NdXgoEFczsAe7Jgfy6UUhpkgiiUxqKzBe48kxuJctleDBDL4ksz1he8v8sB VGrTslWe0AA2D9mB/Fr49kcY9pYilEnlXQsJb2lDK0Z1MxVEHCPuMNGesS5ZGF+WoGHsKhh0dSmEy Gw7ra4OveVGN57fNsmuLf9tIR+DalvEZMCFLalq0GM/7QcFTUT9WqkYguES1nI8QB9CpQK/s3CQlp +70N8in9HTkJLMOc8XYAwurekLQ+RPx6npHDFLv4wAfFFrstkTtngHuNcYyL8/XcVJd2V29IjwW/s 3/9vkAKV+jE/+fCEMNuw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHSC8-0007la-E3; Mon, 07 Oct 2019 12:32:56 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iHSC5-0007kr-EZ for linux-arm-kernel@lists.infradead.org; Mon, 07 Oct 2019 12:32:54 +0000 Received: from dragon (li937-157.members.linode.com [45.56.119.157]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D674B206C0; Mon, 7 Oct 2019 12:32:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570451573; bh=jZekqvOAUQZzuKpPLk1i1wNMZcqRjgtUk7v5o7rc1iA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=p7HRMnK6V9XLxevb5hS+UZA5RgX/8VHa2eMN6RRUtlIp2pVaQMb0xDk5uAY7NX3nN Y6hAKwMiMXCjYEng22jJZqiCYc64csm5HrAtXBC/7sMQI1EJlYQdKcEAnxT1VejGep 5HcLq0DFIe9WUOClTBEnpH4/sSxrjD9FmEtnGHTQ= Date: Mon, 7 Oct 2019 20:32:07 +0800 From: Shawn Guo To: Wen He Subject: Re: [v2 1/2] arm64: dts: ls1028a: Update the clock providers for the Mali DP500 Message-ID: <20191007123203.GL7150@dragon> References: <20190920083419.5092-1-wen.he_1@nxp.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190920083419.5092-1-wen.he_1@nxp.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191007_053253_508248_96BA1A2E X-CRM114-Status: GOOD ( 16.05 ) 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: Mark Rutland , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Li Yang , linux-devel@linux.nxdi.nxp.com, Rob Herring , 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 On Fri, Sep 20, 2019 at 04:34:18PM +0800, Wen He wrote: > In order to maximise performance of the LCD Controller's 64-bit AXI > bus, for any give speed bin of the device, the AXI master interface > clock(ACLK) clock can be up to CPU_frequency/2, which is already > capable of optimal performance. In general, ACLK is always expected > to be equal to CPU_frequency/2. APB slave interface clock(PCLK) and > Main processing clock(PCLK) both are tied to the same clock as ACLK. > > This change followed the LS1028A Architecture Specification Manual. > > Signed-off-by: Wen He @Leo, agree? Shawn > --- > change in v2: > - add details commit description for this change. > - v1: Link: https://lore.kernel.org/patchwork/patch/1119145/ > > arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 17 ++--------------- > 1 file changed, 2 insertions(+), 15 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi > index 72b9a75976a1..51fa8f57fdac 100644 > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi > @@ -86,20 +86,6 @@ > clocks = <&osc_27m>; > }; > > - aclk: clock-axi { > - compatible = "fixed-clock"; > - #clock-cells = <0>; > - clock-frequency = <650000000>; > - clock-output-names= "aclk"; > - }; > - > - pclk: clock-apb { > - compatible = "fixed-clock"; > - #clock-cells = <0>; > - clock-frequency = <650000000>; > - clock-output-names= "pclk"; > - }; > - > reboot { > compatible ="syscon-reboot"; > regmap = <&dcfg>; > @@ -679,7 +665,8 @@ > interrupts = <0 222 IRQ_TYPE_LEVEL_HIGH>, > <0 223 IRQ_TYPE_LEVEL_HIGH>; > interrupt-names = "DE", "SE"; > - clocks = <&dpclk 0>, <&aclk>, <&aclk>, <&pclk>; > + clocks = <&dpclk 0>, <&clockgen 2 2>, <&clockgen 2 2>, > + <&clockgen 2 2>; > clock-names = "pxlclk", "mclk", "aclk", "pclk"; > arm,malidp-output-port-lines = /bits/ 8 <8 8 8>; > arm,malidp-arqos-value = <0xd000d000>; > -- > 2.17.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel