From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3975852-1520205616-2-4661764116682531302 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, FREEMAIL_FORGED_FROMDOMAIN 0.249, FREEMAIL_FROM 0.001, HEADER_FROM_DIFFERENT_DOMAINS 0.249, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='com', MailFrom='org' X-Spam-charsets: plain='utf-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1520205615; b=Tfp5D7RQNWJNC69K8fgXYXQ6RHCw4IEbCCBaiTITZHjwUmv r0HCb9rZvvTk4N65wDUIFXUGdy5Z67dfASpQsVp10jq11iUsrE1TK5diM8rMEAmb eMQ9mYq1ltQ6srfHDKNvOZ7MYbWSyzUSuiSksaRGVlL5VaJAXSQ6dup4WRGEwNAH 9Fzpv9Fg4ORv6lRLZZ6KV9fmZruCBDJM38g5kYmL8lI6ErbuJJVzyApkvsC3L9lu bRalGMVJwmFzJsN5dqIate/Fnr5ILCqEu5Jp23TPLeWLzw+ycOMmCT7e0BEka+l3 R8MMS/5kOHZHFXnDuvHhQbwvRrqBQ8pZcgZChUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:mime-version:subject:from :in-reply-to:date:cc:content-transfer-encoding:message-id :references:to:sender:list-id; s=arctest; t=1520205615; bh=28ahy ERRPZCsqsKGwx4cbFbxX8QWAz6Qp41p+S5M3OQ=; b=DtDri34iBkmV6ELm4Fn9O qFG0QEF6/s1W69GBItDfaLkye74vDLJ2foibe+mNxed/NOp7W/A+yulcKjB/jMrG 3FBGVjTGMB4p5ODzwR8qde67+AHpw7/Jq0CAfJLqMwAt3qgbXCqFrzFvTef0dqcB DC1Mv0On2ULa5L2DPqsWL6jc3PpKVJExdcy1ME35Sz4JUKMWqbxDB6UqcAJ4kVZw TyT0DhYyjZsKB6bhzCkj9Bbm59QP9qdOpbPU+EHWUKZulNJrbii8MLvaVoKTmIUQ tqWHQd6EJipz3XjnTFLBckemPogeNs5xmADyW/BKWwfRScD1II4SoegWIE+ekkZu A== ARC-Authentication-Results: i=1; mx1.messagingengine.com; arc=none (no signatures found); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=N/pjJkyX x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=pass (p=none,has-list-id=yes,d=none) header.from=gmail.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=Uijo29SJ; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=gmail.com header.result=pass header_is_org_domain=yes Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=N/pjJkyX x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=pass (p=none,has-list-id=yes,d=none) header.from=gmail.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=Uijo29SJ; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=gmail.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932578AbeCDXUO (ORCPT ); Sun, 4 Mar 2018 18:20:14 -0500 Received: from mail-lf0-f65.google.com ([209.85.215.65]:42113 "EHLO mail-lf0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932512AbeCDXUM (ORCPT ); Sun, 4 Mar 2018 18:20:12 -0500 X-Google-Smtp-Source: AG47ELvi9Muu8dl7J3y9OFfkgdS+vszqRi5ENsYZU7Bmy9hiAD59DB8KUWafKVeYDah9HaTaesNHJA== Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: [PATCH AUTOSEL for 3.18 34/63] ARM: dts: rockchip: disable arm-global-timer for rk3188 From: Alexander Kochetkov In-Reply-To: <20180303223228.27323-34-alexander.levin@microsoft.com> Date: Mon, 5 Mar 2018 02:20:09 +0300 Cc: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" , Daniel Lezcano Content-Transfer-Encoding: quoted-printable Message-Id: <3545DF61-48DF-4C70-9E58-2D9D07BB64E5@gmail.com> References: <20180303223228.27323-1-alexander.levin@microsoft.com> <20180303223228.27323-34-alexander.levin@microsoft.com> To: Sasha Levin X-Mailer: Apple Mail (2.3124) Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Hello, Sasha! Following 2 patches must be applied together with the patch: 5e0a39d0f727b35c8b7ef56ba0724c8ceb006297 = clocksource/drivers/rockchip_timer: Implement clocksource timer 627988a66aee3c845aa2f1f874a3ddba8adb89d9 ARM: dts: rockchip: Add timer = entries to rk3188 SoC Alexander. > 4 =D0=BC=D0=B0=D1=80=D1=82=D0=B0 2018 =D0=B3., =D0=B2 1:33, Sasha = Levin =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0= =D0=BB(=D0=B0): >=20 > From: Alexander Kochetkov >=20 > [ Upstream commit 500d0aa918a2ea6bb918fee8adcf27dc2912bcd1 ] >=20 > The clocksource and the sched_clock provided by the arm_global_timer > are quite unstable because their rates depend on the cpu frequency. >=20 > On the other side, the arm_global_timer has a higher rating than the > rockchip_timer, it will be selected by default by the time framework > while we want to use the stable rockchip clocksource. >=20 > Let's disable the arm_global_timer in order to have the rockchip > clocksource selected by default. >=20 > Signed-off-by: Alexander Kochetkov > Signed-off-by: Daniel Lezcano > Reviewed-by: Heiko Stuebner > Signed-off-by: Sasha Levin > --- > arch/arm/boot/dts/rk3188.dtsi | 1 + > 1 file changed, 1 insertion(+) >=20 > diff --git a/arch/arm/boot/dts/rk3188.dtsi = b/arch/arm/boot/dts/rk3188.dtsi > index ddaada788b45..72b0b4cb538f 100644 > --- a/arch/arm/boot/dts/rk3188.dtsi > +++ b/arch/arm/boot/dts/rk3188.dtsi > @@ -404,6 +404,7 @@ >=20 > &global_timer { > interrupts =3D ; > + status =3D "disabled"; > }; >=20 > &local_timer { > --=20 > 2.14.1