From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.6 required=5.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id 1540A7D072 for ; Tue, 24 Jul 2018 23:27:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388461AbeGYAgg (ORCPT ); Tue, 24 Jul 2018 20:36:36 -0400 Received: from outils.crapouillou.net ([89.234.176.41]:56350 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388446AbeGYAgg (ORCPT ); Tue, 24 Jul 2018 20:36:36 -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 18/21] MIPS: qi_lb60: Use 750 kHz system timer & enable clocksource Date: Wed, 25 Jul 2018 01:19:55 +0200 Message-Id: <20180724231958.20659-19-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=1532474441; bh=EEz/GKrnXn4JAhjCV6BzW7toYuI/mDnN4ODmk32Ka2E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=fi1Po8wHmOTIeGX+Tqd1B7A0nnS6+UomKjN92RBfVKGYQRuSgj4BbDjdTZhwYqMpM2G6ZkcgKlL9Ys4q+m6FMg1rcNNHQ6aEZNCVCwYAHwfzcMV5Q2nPmYneG5UJevldFzvh5Sz19fVX3AP8kOlH35iyhExcw3VO5dVO9nRrZzQ= Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@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 --- arch/mips/boot/dts/ingenic/qi_lb60.dts | 9 +++++++++ 1 file changed, 9 insertions(+) v5: New patch diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts index 85529a142409..5d2aca867427 100644 --- a/arch/mips/boot/dts/ingenic/qi_lb60.dts +++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts @@ -45,3 +45,12 @@ bias-disable; }; }; + +&tcu { + /* Use TCU1 channel as clocksource */ + ingenic,clocksource-channel = <1>; + + /* 750 kHz for the system timer and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; + assigned-clock-rates = <750000>, <750000>; +}; -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html