From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 References: <1540542307-63158-1-git-send-email-biju.das@bp.renesas.com> In-Reply-To: <1540542307-63158-1-git-send-email-biju.das@bp.renesas.com> From: Geert Uytterhoeven Date: Thu, 24 Jan 2019 11:15:56 +0100 Message-ID: Subject: Re: [PATCH] arm64: dts: renesas: r8a7796: Add CMT device nodes Content-Type: text/plain; charset="UTF-8" To: Biju Das Cc: Rob Herring , Mark Rutland , Simon Horman , Magnus Damm , Linux-Renesas , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Geert Uytterhoeven , Chris Paterson , Daniel Lezcano , Thomas Gleixner , John Stultz , Fabrizio Castro , Samuel Holland List-ID: Hi Biju, On Fri, Oct 26, 2018 at 10:32 AM Biju Das wrote: > This patch adds CMT{0|1|2|3} device nodes for r8a7796 SoC. > > Signed-off-by: Biju Das > --- > This patch is tested against renesas-dev > > I have executed on inconsistency-check, nanosleep and clocksource_switch > selftests on this arm64 SoC. The inconsistency-check and nanosleep tests > are working fine.The clocksource_switch asynchronous test is failing due > to inconsistency-check failure on "arch_sys_counter". > > But if i skip the clocksource_switching of "arch_sys_counter", the > asynchronous test is passing for CMT0/1/2/3 timer. > > Has any one noticed this issue? clockevents/next now has commit 7cd6dca3600d8d71 ("clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability"). Perhaps this is related, and the same test program may indicate similar issues? See also https://lore.kernel.org/lkml/20190113021719.46457-2-samuel@sholland.org/ Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds 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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 373AFC282C3 for ; Thu, 24 Jan 2019 10:16:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11ECA218A2 for ; Thu, 24 Jan 2019 10:16:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726034AbfAXKQK (ORCPT ); Thu, 24 Jan 2019 05:16:10 -0500 Received: from mail-ua1-f67.google.com ([209.85.222.67]:43139 "EHLO mail-ua1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726025AbfAXKQK (ORCPT ); Thu, 24 Jan 2019 05:16:10 -0500 Received: by mail-ua1-f67.google.com with SMTP id z11so1782486uaa.10; Thu, 24 Jan 2019 02:16:09 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=C4paYuBJ2OG+OxXYW5rxTKM7oGPWJ4L+zKRjbAStoCw=; b=QajwyoO3qa99JO/G2HI16DmsfSqZea/yP3r4qHzux0pxxhHdgilUBQeUZrEFxuEX++ /tS0C6baGqC7dp4ew/Kmgns8tOWsLZrsORy8hwlSycG66kzv9NtdKgMzd7aDr/1fIwcn +yBfk/MYpNWuuJy5mV40L/I9Mrw6+kdFGngojvUivSSrdNnRTQpRehJVrp0uYuqHkhsf wb0UGFQ+nsG/U+myAiiqn88/R1k5vJ+T5ulOdSDkCmvIdeEO7BCIDmQ8qxcMUHm45wTN cAZ9pc5ubYslLBBxvVd1bqxF2VNz5roxljMj85twQH0FgCeP10jb8AqU1ks/yup9/fwc rz9w== X-Gm-Message-State: AJcUukeqAq0cC04ooYLlGGYgO3C7HZzgtg0rJwhRnBYfSiadPvJDzvZb NGDx4sbXy84EtyMnIReA3dKjSTEAwh/4/0Fzoos= X-Google-Smtp-Source: ALg8bN7Hs9tk8aG2awFFZdMHAM96XxTr6lQqtZ++da10slo9wHrzQEq/BKyzStPwnuoGVvfCvk7TDzuzYJQW81W36fw= X-Received: by 2002:ab0:7251:: with SMTP id d17mr2522935uap.0.1548324969198; Thu, 24 Jan 2019 02:16:09 -0800 (PST) MIME-Version: 1.0 References: <1540542307-63158-1-git-send-email-biju.das@bp.renesas.com> In-Reply-To: <1540542307-63158-1-git-send-email-biju.das@bp.renesas.com> From: Geert Uytterhoeven Date: Thu, 24 Jan 2019 11:15:56 +0100 Message-ID: Subject: Re: [PATCH] arm64: dts: renesas: r8a7796: Add CMT device nodes To: Biju Das Cc: Rob Herring , Mark Rutland , Simon Horman , Magnus Damm , Linux-Renesas , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Geert Uytterhoeven , Chris Paterson , Daniel Lezcano , Thomas Gleixner , John Stultz , Fabrizio Castro , Samuel Holland Content-Type: text/plain; charset="UTF-8" Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Hi Biju, On Fri, Oct 26, 2018 at 10:32 AM Biju Das wrote: > This patch adds CMT{0|1|2|3} device nodes for r8a7796 SoC. > > Signed-off-by: Biju Das > --- > This patch is tested against renesas-dev > > I have executed on inconsistency-check, nanosleep and clocksource_switch > selftests on this arm64 SoC. The inconsistency-check and nanosleep tests > are working fine.The clocksource_switch asynchronous test is failing due > to inconsistency-check failure on "arch_sys_counter". > > But if i skip the clocksource_switching of "arch_sys_counter", the > asynchronous test is passing for CMT0/1/2/3 timer. > > Has any one noticed this issue? clockevents/next now has commit 7cd6dca3600d8d71 ("clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability"). Perhaps this is related, and the same test program may indicate similar issues? See also https://lore.kernel.org/lkml/20190113021719.46457-2-samuel@sholland.org/ Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds