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=-7.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 D3189C67839 for ; Wed, 12 Dec 2018 22:22:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9847120672 for ; Wed, 12 Dec 2018 22:22:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="wNRqrgTL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9847120672 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-mips-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728345AbeLLWWE (ORCPT ); Wed, 12 Dec 2018 17:22:04 -0500 Received: from outils.crapouillou.net ([89.234.176.41]:44944 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728392AbeLLWVl (ORCPT ); Wed, 12 Dec 2018 17:21:41 -0500 From: Paul Cercueil To: Thierry Reding , Rob Herring , Mark Rutland , Daniel Lezcano , Thomas Gleixner , Ralf Baechle , Paul Burton , James Hogan , Jonathan Corbet Cc: Mathieu Malaterre , Ezequiel Garcia , PrasannaKumar Muralidharan , linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-mips@vger.kernel.org, linux-doc@vger.kernel.org, linux-clk@vger.kernel.org, od@zcrc.me, Paul Cercueil Subject: [PATCH v8 24/26] MIPS: GCW0: Reduce system timer and clocksource to 750 kHz Date: Wed, 12 Dec 2018 23:13:33 +0100 Message-Id: <20181212221335.19404-1-paul@crapouillou.net> In-Reply-To: <20181212220922.18759-1-paul@crapouillou.net> References: <20181212220922.18759-1-paul@crapouillou.net> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1544652820; bh=e0kNvvuhg8f5WBG6n5hty1EJZlzodm1w2H6KLsmhNd0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=wNRqrgTLUe4SbsS6rrFYqlNoNqLc7PenSPNHsD27rFUa71W4u6J4krlPwXJ/SYU2HhTllMgx5ABpyeaQ9Gdb02dmr5c/cMiuQNHuZsxWH8TKNedUu2+OqcsTk5BB0O0f6nB7gdsYasrMtMH69XH42qC4h0qm99qMETaXzvE8CBM= Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The default clock (12 MHz) is too fast for the system timer, which fails to report time accurately. Signed-off-by: Paul Cercueil --- Notes: v8: New patch arch/mips/boot/dts/ingenic/gcw0.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/mips/boot/dts/ingenic/gcw0.dts b/arch/mips/boot/dts/ingenic/gcw0.dts index 8abab14eb852..651c3f505fa5 100644 --- a/arch/mips/boot/dts/ingenic/gcw0.dts +++ b/arch/mips/boot/dts/ingenic/gcw0.dts @@ -61,6 +61,12 @@ status = "okay"; }; +&tcu { + /* 750 kHz for the system timer and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>; + assigned-clock-rates = <750000>, <750000>; +}; + &pwm { /* Channels 1 and 3-7 are for PWM use */ reg = <0x50 0x10>, <0x70 0x50>; -- 2.11.0