Message ID | 20180821171846.23050-1-paul@crapouillou.net |
---|---|
State | Awaiting Upstream |
Headers | show
Return-Path: <linux-pwm-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=crapouillou.net Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=crapouillou.net header.i=@crapouillou.net header.b="ndOeMtVu"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41vy8452mqz9s78 for <incoming@patchwork.ozlabs.org>; Wed, 22 Aug 2018 03:19:00 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727617AbeHUUjx (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Tue, 21 Aug 2018 16:39:53 -0400 Received: from outils.crapouillou.net ([89.234.176.41]:39720 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726715AbeHUUjx (ORCPT <rfc822; linux-pwm@vger.kernel.org>); Tue, 21 Aug 2018 16:39:53 -0400 From: Paul Cercueil <paul@crapouillou.net> To: Thomas Gleixner <tglx@linutronix.de>, Daniel Lezcano <daniel.lezcano@linaro.org>, Rob Herring <robh+dt@kernel.org>, Thierry Reding <thierry.reding@gmail.com>, Mark Rutland <mark.rutland@arm.com>, Ralf Baechle <ralf@linux-mips.org>, Paul Burton <paul.burton@mips.com>, Jonathan Corbet <corbet@lwn.net> Cc: od@zcrc.me, Mathieu Malaterre <malat@debian.org>, 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 <paul@crapouillou.net> Subject: [PATCH v7 22/24] MIPS: CI20: Reduce system timer and clocksource to 3 MHz Date: Tue, 21 Aug 2018 19:18:46 +0200 Message-Id: <20180821171846.23050-1-paul@crapouillou.net> In-Reply-To: <20180821171635.22740-1-paul@crapouillou.net> References: <20180821171635.22740-1-paul@crapouillou.net> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1534871930; bh=6VZK2eVXiXpHeoFyayU1uTFkj/6anMKLeptcOJ9wiM8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=ndOeMtVu9j3bSqMKi2MtlpqTZM+W4hCbNxJ1RY/8ViTbYe4WGWWcPojACW9qJ479ZeIg8EuslBGFXeLxrwDWsdmph/qmISuC33VibCdfAVaqV6SJ5mgVzGAuhtMgRtV0pkiMZEbE5g9wHCFc6lbmqCRn/NCaAEM8qXKzmSBPe84= Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: <linux-pwm.vger.kernel.org> X-Mailing-List: linux-pwm@vger.kernel.org |
Series |
TCU patchset v7
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expand
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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>; +};
The default clock (48 MHz) is too fast for the system timer, which fails to report time accurately. Signed-off-by: Paul Cercueil <paul@crapouillou.net> --- Notes: v5: New patch v6: Set also the rate for the clocksource channel's clock v7: No change arch/mips/boot/dts/ingenic/ci20.dts | 6 ++++++ 1 file changed, 6 insertions(+)