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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 0D6E3C46470 for ; Thu, 9 Aug 2018 21:47:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B6D9D22394 for ; Thu, 9 Aug 2018 21:47:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="nN4xd2do" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6D9D22394 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 S1727954AbeHJANu (ORCPT ); Thu, 9 Aug 2018 20:13:50 -0400 Received: from outils.crapouillou.net ([89.234.176.41]:41248 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727228AbeHJANu (ORCPT ); Thu, 9 Aug 2018 20:13:50 -0400 From: Paul Cercueil To: Rob Herring , Mark Rutland , Thierry Reding , Daniel Lezcano , Thomas Gleixner , Wim Van Sebroeck , Guenter Roeck , Ralf Baechle , Paul Burton , James Hogan , Jonathan Corbet , Lee Jones , Mathieu Malaterre , Ezequiel Garcia Cc: 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, Paul Cercueil Subject: [PATCH v6 22/24] MIPS: CI20: Reduce system timer and clocksource to 3 MHz Date: Thu, 9 Aug 2018 23:46:52 +0200 Message-Id: <20180809214654.21308-1-paul@crapouillou.net> In-Reply-To: <20180809214414.20905-1-paul@crapouillou.net> References: <20180809214414.20905-1-paul@crapouillou.net> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1533851222; bh=q6N4aFUckHjIT1Gw609cpOW99FGehMvCTSFaPBsLIuQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=nN4xd2doiYSDqZez+Xag8dyCXcY3B2YfpeaAN9Um6Vu3r52SPqTsd2pYtQbo7rLjtnxEkSqUXS7K/R5GGBPNkxYtQa9MxbjtxlUtlY46js2IY5vK8Fdm/npYSVdVKesvAgy8Hc4BuKCpDFsbh1IYnFU4NUwG8zzAgwKqqj19EVA= 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 v6: Set also the rate for the clocksource channel's clock diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 50cff3cbcc6d..f64d32443097 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 and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; + assigned-clock-rates = <3000000>, <3000000>; +}; -- 2.11.0