From patchwork Sat Feb 15 18:55:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhou Yanjie X-Patchwork-Id: 11383957 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 07CC1159A for ; Sat, 15 Feb 2020 18:56:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DDBF120726 for ; Sat, 15 Feb 2020 18:56:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727797AbgBOS4Q (ORCPT ); Sat, 15 Feb 2020 13:56:16 -0500 Received: from out28-49.mail.aliyun.com ([115.124.28.49]:41743 "EHLO out28-49.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726233AbgBOS4P (ORCPT ); Sat, 15 Feb 2020 13:56:15 -0500 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.086072|-1;CH=green;DM=CONTINUE|CONTINUE|true|0.296506-0.0118045-0.69169;DS=CONTINUE|ham_system_inform|0.00938196-0.00027899-0.990339;FP=0|0|0|0|0|-1|-1|-1;HT=e02c03306;MF=zhouyanjie@wanyeetech.com;NM=1;PH=DS;RN=24;RT=24;SR=0;TI=SMTPD_---.GoTIZgt_1581792955; Received: from localhost.localdomain(mailfrom:zhouyanjie@wanyeetech.com fp:SMTPD_---.GoTIZgt_1581792955) by smtp.aliyun-inc.com(10.147.42.241); Sun, 16 Feb 2020 02:56:09 +0800 From: =?utf-8?b?5ZGo55Cw5p2wIChaaG91IFlhbmppZSk=?= To: linux-mips@vger.kernel.org Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, paul@crapouillou.net, mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, ralf@linux-mips.org, paulburton@kernel.org, jiaxun.yang@flygoat.com, chenhc@lemote.com, allison@lohutok.net, tglx@linutronix.de, daniel.lezcano@linaro.org, geert+renesas@glider.be, krzk@kernel.org, keescook@chromium.org, ebiederm@xmission.com, miquel.raynal@bootlin.com, paul@boddie.org.uk, hns@goldelico.com, mips-creator-ci20-dev@googlegroups.com Subject: [PATCH v5 3/7] MIPS: CI20: Modify DTS to support high resolution timer for SMP. Date: Sun, 16 Feb 2020 02:55:28 +0800 Message-Id: <1581792932-108032-5-git-send-email-zhouyanjie@wanyeetech.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1581792932-108032-1-git-send-email-zhouyanjie@wanyeetech.com> References: <1581792932-108032-1-git-send-email-zhouyanjie@wanyeetech.com> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Modify DTS, change tcu channel from 2 to 3, channel #0 and #1 for per core local timer, #2 for clocksource. Tested-by: H. Nikolaus Schaller Tested-by: Paul Boddie Signed-off-by: 周琰杰 (Zhou Yanjie) --- Notes: v1->v2: No change. v2->v3: No change. v3->v4: Rebase on top of kernel 5.6-rc1. v4->v5: Move [5/6] in v4 to this patch, to ensure that we can git-bisect without ending up with a broken kernel. arch/mips/boot/dts/ingenic/ci20.dts | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 37b9316..29437aa 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -455,7 +455,14 @@ }; &tcu { - /* 3 MHz for the system timer and clocksource */ - assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; - assigned-clock-rates = <3000000>, <3000000>; + /* 3 MHz for the system timers, 750kHz for the clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>, + <&tcu TCU_CLK_TIMER2>; + assigned-clock-rates = <3000000>, <3000000>, <750000>; + + /* + * Use channel #0 and #1 for the per core system timer, + * and use channel #2 for the clocksource. + */ + ingenic,pwm-channels-mask = <0xF8>; };