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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 DDCACC6778F for ; Tue, 24 Jul 2018 23:20:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9739A20882 for ; Tue, 24 Jul 2018 23:20:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="S2l6Cs7h" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9739A20882 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=crapouillou.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389267AbeGYA3d (ORCPT ); Tue, 24 Jul 2018 20:29:33 -0400 Received: from outils.crapouillou.net ([89.234.176.41]:47710 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389219AbeGYA3c (ORCPT ); Tue, 24 Jul 2018 20:29:32 -0400 From: Paul Cercueil To: Thierry Reding , Rob Herring , Mark Rutland , Daniel Lezcano , Thomas Gleixner , Wim Van Sebroeck , Guenter Roeck , Ralf Baechle , Paul Burton , Jonathan Corbet , Michael Turquette , Stephen Boyd , Lee Jones Cc: Paul Cercueil , linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-mips@linux-mips.org, linux-doc@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v5 19/21] MIPS: CI20: Reduce system timer clock to 3 MHz Date: Wed, 25 Jul 2018 01:19:56 +0200 Message-Id: <20180724231958.20659-20-paul@crapouillou.net> In-Reply-To: <20180724231958.20659-1-paul@crapouillou.net> References: <20180724231958.20659-1-paul@crapouillou.net> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1532474443; bh=8Yt9sphAYtinnrfMi2DD4jUv/yg73cz1CCOO1dadOKk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=S2l6Cs7hoUsZa8cOI+P4OiVLEEhYy0gNcixIVn7OsyVJa3rFJjtquaAgqndMyz5sLbLBpiIEX8FUlSi6oSg3g8KzWkWKbDzDx/ohuf4TGUu5XzuL+YtwLvNHxx2JC/I8ZJY6vEPOy+JxZ7rRgl1GfFz6TkkCHFoAHtJ5Y2M1qEA= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The default clock (48 MHz) is too fast for the system timer, which fails to report time accurately. Signed-off-by: Paul Cercueil --- arch/mips/boot/dts/ingenic/ci20.dts | 6 ++++++ 1 file changed, 6 insertions(+) v5: New patch diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 50cff3cbcc6d..700cf28a52ec 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -238,3 +238,9 @@ bias-disable; }; }; + +&tcu { + /* 3 MHz for the system timer */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>; + assigned-clock-rates = <3000000>; +}; -- 2.11.0