From patchwork Thu Dec 27 18:13:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 1018962 Return-Path: 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=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=crapouillou.net Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=crapouillou.net header.i=@crapouillou.net header.b="nUoXSsPt"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43QdKY67Y5z9s8J for ; Fri, 28 Dec 2018 05:14:57 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728231AbeL0SOv (ORCPT ); Thu, 27 Dec 2018 13:14:51 -0500 Received: from outils.crapouillou.net ([89.234.176.41]:54672 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727376AbeL0SOO (ORCPT ); Thu, 27 Dec 2018 13:14:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1545934449; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=n9oebVyt08RpmFk0LHBOuFFDBXWbh4nBFbxy/7YDdw4=; b=nUoXSsPtaCZ3NkONajN/SrJL9HqbRdkZ5TF2R7mndvjHaCj4PCaijcSlAxW1pQf1aOe1A2 FkQlDm5Gk7QjSw12glvMXOb2QW+aKWvJynRgbpGi3TgNzkR2TZ74K9PFcN86kVQWrMCqdC EjYFChs47xi09weFb57jobVZ/TEdF5s= From: Paul Cercueil To: Thierry Reding , Rob Herring , Mark Rutland , Daniel Lezcano , Thomas Gleixner , Ralf Baechle , Paul Burton , James Hogan , Jonathan Corbet , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: 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, Paul Cercueil Subject: [PATCH v9 22/27] MIPS: qi_lb60: Reduce system timer and clocksource to 750 kHz Date: Thu, 27 Dec 2018 19:13:14 +0100 Message-Id: <20181227181319.31095-23-paul@crapouillou.net> In-Reply-To: <20181227181319.31095-1-paul@crapouillou.net> References: <20181227181319.31095-1-paul@crapouillou.net> Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@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: v5: New patch v6: Remove ingenic,clocksource-channel property v7: No change v8: No change v9: No change arch/mips/boot/dts/ingenic/qi_lb60.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts index 85529a142409..de9d45e2c24a 100644 --- a/arch/mips/boot/dts/ingenic/qi_lb60.dts +++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts @@ -45,3 +45,9 @@ bias-disable; }; }; + +&tcu { + /* 750 kHz for the system timer and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; + assigned-clock-rates = <750000>, <750000>; +};