From patchwork Sat Nov 2 03:08:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dragan Simic X-Patchwork-Id: 13859906 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1AA29E6F07E for ; Sat, 2 Nov 2024 03:13:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=k33vTDitf06aKiwfNJDdOoAA6cwqjjJzaXvt5dYrR+I=; b=kdk6tFu9/z9GGYO9a57WgipwoD eLA9xvJqKf8Pplgql5m4qBVldeZCBqexzIqTKyIbhPal1MACHPzkAhR8Zd00S1dkO+w12ruWwtB99 j9Ul5mdLpCyNV9mtgnPgOsKT+DMr0GuGGKtD2SZhAmZs5h2UXR5hFqCWoqAYHta5Xsu8mERQRfMzZ W9PzXd1/MUtJI8JEV6a0+tukgttOnLUFU7UD/4D7Y+6dQdD+Gkx0KkTEcOFJCqzOVpiH89UQl10w9 3uhmyB95QuCEIliiT2TuqBBYbAJPy3gNQSKMt27l3gD2w90asAgcFrdaka1NRQNO7XV1bmO21330f c70uKARw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t74ZJ-00000008vrQ-2Y1L; Sat, 02 Nov 2024 03:12:53 +0000 Received: from mail.manjaro.org ([2a01:4f8:c0c:51f3::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t74Vz-00000008vSv-3UWv; Sat, 02 Nov 2024 03:09:29 +0000 From: Dragan Simic DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manjaro.org; s=2021; t=1730516957; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=k33vTDitf06aKiwfNJDdOoAA6cwqjjJzaXvt5dYrR+I=; b=acDK5Lt93Pm2eToay6pQv0CX3Gn3gQagepQd+XDmGCqJOTGy76/7E4lu11S+0yHkuRRMdO 6C+TBxot+ps8HWtLCfSAqaAhzXhxITcGiOtWZRJjjmGYjXdkGC8byvGtSKtKHH5DgHtI/u i7WJiqXaqSbCb86WWTZ8H1ssGB7l6aL8YRf8aejjGrplsAIAPLK4tESkjnlRR9gOh+6IHF 5UTTwcgwWfcfutiZN/NPzEiG93tqjB9N2WWVYRqPCSYQQonPgm0htkfePbBzUuapFNWeW+ MfXENjKfwh3d5OBLGnvTSq6818Kkevuca2ZNDFmdgkzgZQJqxu66EiDTBoxMyA== To: linux-rockchip@lists.infradead.org Cc: heiko@sntech.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, didi.debian@cknow.org Subject: [PATCH v2 1/3] arm64: dts: rockchip: Update CPU OPP voltages in RK356x SoC dtsi Date: Sat, 2 Nov 2024 04:08:59 +0100 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Authentication-Results: ORIGINATING; auth=pass smtp.auth=dsimic@manjaro.org smtp.mailfrom=dsimic@manjaro.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241101_200928_195264_6CC3BE25 X-CRM114-Status: GOOD ( 11.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Update the lower/upper voltage limits and the exact voltages for the Rockchip RK356x CPU OPPs, using the most conservative values (i.e. the highest per-OPP voltages) found in the vendor kernel source. [1] Using the most conservative per-OPP voltages ensures reliable CPU operation regardless of the actual CPU binning, with the downside of possibly using a bit more power for the CPU cores than absolutely needed. Additionally, fill in the missing "clock-latency-ns" CPU OPP properties, using the values found in the vendor kernel source. [1] [1] https://raw.githubusercontent.com/rockchip-linux/kernel/f8b9431ee38ed561650be7092ab93f564598daa9/arch/arm64/boot/dts/rockchip/rk3568.dtsi Related-to: eb665b1c06bc ("arm64: dts: rockchip: Update GPU OPP voltages in RK356x SoC dtsi") Signed-off-by: Dragan Simic --- arch/arm64/boot/dts/rockchip/rk3568.dtsi | 1 + arch/arm64/boot/dts/rockchip/rk356x.dtsi | 18 ++++++++++++------ 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi index 0946310e8c12..5c54898f6ed1 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi @@ -273,6 +273,7 @@ &cpu0_opp_table { opp-1992000000 { opp-hz = /bits/ 64 <1992000000>; opp-microvolt = <1150000 1150000 1150000>; + clock-latency-ns = <40000>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index 0ee0ada6f0ab..534593f2ed0b 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -134,39 +134,45 @@ cpu0_opp_table: opp-table-0 { opp-408000000 { opp-hz = /bits/ 64 <408000000>; - opp-microvolt = <900000 900000 1150000>; + opp-microvolt = <850000 850000 1150000>; clock-latency-ns = <40000>; }; opp-600000000 { opp-hz = /bits/ 64 <600000000>; - opp-microvolt = <900000 900000 1150000>; + opp-microvolt = <850000 850000 1150000>; + clock-latency-ns = <40000>; }; opp-816000000 { opp-hz = /bits/ 64 <816000000>; - opp-microvolt = <900000 900000 1150000>; + opp-microvolt = <850000 850000 1150000>; + clock-latency-ns = <40000>; opp-suspend; }; opp-1104000000 { opp-hz = /bits/ 64 <1104000000>; opp-microvolt = <900000 900000 1150000>; + clock-latency-ns = <40000>; }; opp-1416000000 { opp-hz = /bits/ 64 <1416000000>; - opp-microvolt = <900000 900000 1150000>; + opp-microvolt = <1025000 1025000 1150000>; + clock-latency-ns = <40000>; }; opp-1608000000 { opp-hz = /bits/ 64 <1608000000>; - opp-microvolt = <975000 975000 1150000>; + opp-microvolt = <1100000 1100000 1150000>; + clock-latency-ns = <40000>; }; opp-1800000000 { opp-hz = /bits/ 64 <1800000000>; - opp-microvolt = <1050000 1050000 1150000>; + opp-microvolt = <1150000 1150000 1150000>; + clock-latency-ns = <40000>; }; };