From patchwork Sat Nov 16 09:52:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 11247515 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DF94A159A for ; Sat, 16 Nov 2019 09:52:42 +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 BD7182072D for ; Sat, 16 Nov 2019 09:52:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="d0/opSvq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD7182072D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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=6CHXmI7BFPC1IsqaDPGQEVkb4yQFhm0lVPH+3jajeAM=; b=d0/opSvq7FRa/O pjLmeZH9mrUv1rH3PzUIuynfJEwcEtq+/5G6AIOh6/P8dlpk3FDOT9F3VkgvF8wpNORMaHRH9ZmkP uLdtwaaxK2e8ixCVs9Ck19DEUl/FY4tVLZg++njUmcg8NfEkLSFm4BaobI+BfuanXyW5hgLd6GnL/ whK0RP2pRPw2QZeS7WIcILnZ4Z300yP0e/Z9jac99K4YKBgBrv7Kj0uWbL8iaME4WoegKr39+UilJ a/O6J6jLFcGCWBOedvtQrCkGmCCDU2TC0F6uzuEZdmuIWU2gkmTzHNKBMshwYa7mVi4MG6oRPPCU3 qN1d+g7Jcv0950yn8hog==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iVuky-0003jK-1L; Sat, 16 Nov 2019 09:52:40 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iVuku-0003iH-JD; Sat, 16 Nov 2019 09:52:37 +0000 Received: from ip5f5a6266.dynamic.kabel-deutschland.de ([95.90.98.102] helo=phil.fritz.box) by gloria.sntech.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1iVuko-0004bM-Sh; Sat, 16 Nov 2019 10:52:30 +0100 From: Heiko Stuebner To: linux-rockchip@lists.infradead.org Subject: [PATCH] arm64: dts: rockchip: remove 408MHz operating point from px30 Date: Sat, 16 Nov 2019 10:52:20 +0100 Message-Id: <20191116095220.31122-1-heiko@sntech.de> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191116_015236_780486_30A2FD8D X-CRM114-Status: UNSURE ( 9.65 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 SPF_NONE SPF: sender does not publish an SPF Record 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: heiko@sntech.de, Heiko Stuebner , kever.yang@rock-chips.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, cl@rock-chips.com, christoph.muellner@theobroma-systems.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Heiko Stuebner It looks like the px30 is running unstable at this 408MHz operating point. This shows in stalled threads and other big numbers of kernel exception. At 600MHz and above it instead works stable and as expected. As the 408MHz point doesn't even decrease the voltage compared to 600MHz, just drop this 408MHz operating point for now. Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/px30.dtsi | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi index c68d6fede53d..ff53cc56f80f 100644 --- a/arch/arm64/boot/dts/rockchip/px30.dtsi +++ b/arch/arm64/boot/dts/rockchip/px30.dtsi @@ -114,16 +114,11 @@ compatible = "operating-points-v2"; opp-shared; - opp-408000000 { - opp-hz = /bits/ 64 <408000000>; - opp-microvolt = <950000 950000 1350000>; - clock-latency-ns = <40000>; - opp-suspend; - }; opp-600000000 { opp-hz = /bits/ 64 <600000000>; opp-microvolt = <950000 950000 1350000>; clock-latency-ns = <40000>; + opp-suspend; }; opp-816000000 { opp-hz = /bits/ 64 <816000000>;