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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 E009EC7618B for ; Thu, 25 Jul 2019 17:13:01 +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 B519C22BF5 for ; Thu, 25 Jul 2019 17:13:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="eTp9Wqu5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B519C22BF5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.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=nqblVLBP4qHR08cKjCKs63e/k7hNUdElyF2ug9uI/o0=; b=eTp9Wqu5bEGnkt 3HAXI0T9WiZZVzySc7SgRq5DUmzYvSC0AexANe88DkXNLHmPqsdeHJTF4rZYZV+m1kBDaJfyTW5pi VuGELCe7+QjQL0ah27vvyzya2uSmbVctbaSY4xWpyQza85q2MWDWhWpPJN6+iLK+IH15mlA/siRkI A9zJUDeqzfNzfARphCQcj6uh7pU0mYGwLkCV+D6FKQ8SsLmUbFInLW9obeEcpvziKmEnSYRuYY8Wv JgJGtzbcwFHcFPH7CFBteK0HDlYakbi9G+NClnT7iEwXvtfaELldspyKv/61S4NsSZhQTF3Wt2QZE TvHKmYk0Fr+ZMG/muZVQ==; 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 1hqhIb-0002kz-AV; Thu, 25 Jul 2019 17:13:01 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hqhIY-0002kY-B2 for linux-arm-kernel@lists.infradead.org; Thu, 25 Jul 2019 17:12:59 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7893C174E; Thu, 25 Jul 2019 10:12:57 -0700 (PDT) Received: from e123572-lin.arm.com (e123572-lin.cambridge.arm.com [10.1.194.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 072A13F71A; Thu, 25 Jul 2019 10:12:55 -0700 (PDT) From: Kevin Brodsky To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] arm64: dts: fast models: Remove clcd's max-memory-bandwidth Date: Thu, 25 Jul 2019 18:12:14 +0100 Message-Id: <20190725171215.71801-1-kevin.brodsky@arm.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190725_101258_472160_6EF4CC30 X-CRM114-Status: GOOD ( 11.27 ) 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: devicetree@vger.kernel.org, Pawel Moll , Ruben Ayrapetyan , Linus Walleij , Kevin Brodsky , Liviu Dudau , dri-devel@lists.freedesktop.org, Sudeep Holla , Robin Murphy , Brian Starkey 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 It is unclear why max-memory-bandwidth should be set for CLCD on the fast model. Removing that property allows allocating and using 32bpp buffers, which may be desirable on certain platforms such as Android. Reported-by: Ruben Ayrapetyan Signed-off-by: Kevin Brodsky --- Changes in v2: - Remove the attribute completely instead of increasing its value. It is optional and there is no clear reason why it should be set at all. arch/arm64/boot/dts/arm/fvp-base-revc.dts | 8 -------- arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi | 2 -- 2 files changed, 10 deletions(-) diff --git a/arch/arm64/boot/dts/arm/fvp-base-revc.dts b/arch/arm64/boot/dts/arm/fvp-base-revc.dts index 687707020ec1..62ab0d54ff71 100644 --- a/arch/arm64/boot/dts/arm/fvp-base-revc.dts +++ b/arch/arm64/boot/dts/arm/fvp-base-revc.dts @@ -265,13 +265,5 @@ <0 0 42 &gic 0 0 GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>, <0 0 43 &gic 0 0 GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>, <0 0 44 &gic 0 0 GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>; - - motherboard { - iofpga@3,00000000 { - clcd@1f0000 { - max-memory-bandwidth = <130000000>; /* 16bpp @ 63.5MHz */ - }; - }; - }; }; }; diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi index 454cf6c44c49..03a7bf079c8f 100644 --- a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi +++ b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi @@ -188,8 +188,6 @@ interrupts = <14>; clocks = <&v2m_oscclk1>, <&v2m_clk24mhz>; clock-names = "clcdclk", "apb_pclk"; - /* 800x600 16bpp @36MHz works fine */ - max-memory-bandwidth = <54000000>; memory-region = <&vram>; port { -- 2.22.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel