From patchwork Thu Dec 1 08:42:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 629998 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3D41C47088 for ; Thu, 1 Dec 2022 08:43:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229475AbiLAInC (ORCPT ); Thu, 1 Dec 2022 03:43:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229773AbiLAImx (ORCPT ); Thu, 1 Dec 2022 03:42:53 -0500 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 138951DA67 for ; Thu, 1 Dec 2022 00:42:44 -0800 (PST) Received: by mail-pj1-x102b.google.com with SMTP id cm20so1238431pjb.1 for ; Thu, 01 Dec 2022 00:42:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=V298lkV5QtI9GGd+VqJ9vB4qdc38PxeAIxTF+s8oIPU=; b=HXNerBkWxszjzmqR+65CvsTOErf+iOTLkDjru19S6a7Uz08AbN/rnneQjLsuIJvrwr Dg4WpD9aZ6NDY+2mQzKl90XlI6RelVXlXhdV3g6eI1GbO5rHFK0JkQSA/Uh9EvY/A0St ykQNoytvUS9qE6UxB7Ts+ItS8hkq2vLt19GbE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V298lkV5QtI9GGd+VqJ9vB4qdc38PxeAIxTF+s8oIPU=; b=PoSElox+2uB4AmVuBFeJeqjPSTGbxmWV+QFpx9QpZ4xSnX9b+LTMZ2XwFvjaVNL78A 565fQJlt1uxrkA8Hr06n1epCmP0alsyHB2aQpZZ9CQ9b3NMDKCYgVQW1HUUmHr7pB5lv 2cuPELonVqTng7gbh+HO7/WeOqiog9Ld0NhFnQnTVqFHMoYKeJOom7goQKT+8B/t2Znu 0hOlgQgSQbAzEws+D/kciCLaX0kdrGsNx5IiuWJWXxGJzXwA7baAIuvrhPUShjvNaEfw urRiyeEsjbEQwnRPo+3kDRo/H+dPU2QN7Zjn8dEjgluUBAgpsCQK+Im7pXzm1qPhq+iK 6tMQ== X-Gm-Message-State: ANoB5plmAa56HNclJzGQzdMwvGpivsHhcuW4UNC+XAsow1ejPOWXRKL+ F60rzb6C9eLy1OWrNDAZFX9k9w== X-Google-Smtp-Source: AA0mqf665+1a7uoBaUKEuv2A7tuu9y7S3ALImhvKQOwgh7iwjPQZ077I2pm6cCd4wI2XcxO8yLOpyQ== X-Received: by 2002:a17:90a:4594:b0:218:f745:76fe with SMTP id v20-20020a17090a459400b00218f74576femr37452609pjg.245.1669884163980; Thu, 01 Dec 2022 00:42:43 -0800 (PST) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:2416:fa4e:4eeb:fcde]) by smtp.gmail.com with ESMTPSA id j5-20020a170902690500b001708c4ebbaesm2932293plk.309.2022.12.01.00.42.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Dec 2022 00:42:43 -0800 (PST) From: Chen-Yu Tsai To: Matthias Brugger Cc: Chen-Yu Tsai , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= Subject: [PATCH 4/4] arm64: dts: mediatek: mt8186: Fix systimer 13 MHz clock description Date: Thu, 1 Dec 2022 16:42:29 +0800 Message-Id: <20221201084229.3464449-5-wenst@chromium.org> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog In-Reply-To: <20221201084229.3464449-1-wenst@chromium.org> References: <20221201084229.3464449-1-wenst@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The systimer block derives its 13 MHz clock by dividing the main 26 MHz oscillator clock by 2 internally. The 13 MHz clock is not a separate oscillator. Fix this by making the 13 MHz clock a divide-by-2 fixed factor clock, taking its input from the main 26 MHz oscillator. Fixes: 2e78620b1350 ("arm64: dts: Add MediaTek MT8186 dts and evaluation board and Makefile") Signed-off-by: Chen-Yu Tsai --- arch/arm64/boot/dts/mediatek/mt8186.dtsi | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8186.dtsi b/arch/arm64/boot/dts/mediatek/mt8186.dtsi index 4a2f7ad3c6f0..209f26f12dbc 100644 --- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi @@ -215,10 +215,12 @@ l3_0: l3-cache { }; }; - clk13m: oscillator-13m { - compatible = "fixed-clock"; + clk13m: fixed-factor-clock-13m { + compatible = "fixed-factor-clock"; #clock-cells = <0>; - clock-frequency = <13000000>; + clocks = <&clk26m>; + clock-div = <2>; + clock-mult = <1>; clock-output-names = "clk13m"; };