From mboxrd@z Thu Jan 1 00:00:00 1970 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 B433DCEB2C9 for ; Sat, 15 Nov 2025 10:03:33 +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: Subject:Message-ID:MIME-Version:To:Cc:Date:References:Content-Type: In-Reply-To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=OhDLdVDlCvXeDp/tg/EoSLGGgeXipYMI7B6maDjTSSE=; b=hY0yBHTKKHDAn/zKlUuit5q4TL /bhaRGqHswIKPsgkn2LN/G/oBc21ZHaIo6KqMo2iMqBLYPzTRvqYDCgo+Oh2hd0nf7dlFgoe8RwSx WTRK3F80s4DaqsQeSTgGEudE45JJvXvHmCg96intchm4NgUqHx68aBkova1k66I5o/ARki4u+OiZN bkoyuFs0A8CnmkW5ypg1TsEySCJSqlbsI3c4kC9txV9z1QC9+qbzf9YsK2xcxK+bTnqcICBHR1xaK Ha1ncPmWfo9QL/lup0W1iUvxZeQ1NbQRAUKdec4y+cafgWAAhMviwloTo5VuKfWv8tWFeFtTg9Iae Lb+dzbaA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vKD7u-0000000DgYy-2JBC; Sat, 15 Nov 2025 10:03:26 +0000 Received: from mail1.manjaro.org ([142.132.176.110]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vKD7r-0000000DgYY-2RJq; Sat, 15 Nov 2025 10:03:24 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPA id 8DC29410BE; Sat, 15 Nov 2025 11:03:19 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manjaro.org; s=dkim; t=1763201000; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=OhDLdVDlCvXeDp/tg/EoSLGGgeXipYMI7B6maDjTSSE=; b=te3MMx4tA4VoWA6jAGFbPK5AuHoMITcFgQi18NVYV1IEKbLCgcMSqZIle7VKGoL1OZJwKu 13qV+OKJeqiyZ3ywB026KMmTLmslaTGw35KrC+5zh4Y94tZYdRb9VXXLE4bdgar5wMB3uV fwOdaWfvzl1RUqXGIZxvxFh8CVkSSeD3gLQYhWJ1szHmDO1SUUQukEOSud9tmyg5umiSL5 RjoXV2VUajjJrsVZ6dOZmE+0vMsSMoNPaxtHORubjCPlPqlbU5LN0wyDKg2/DSgIF831l1 ea8LOvh8kReW1Lgxo/117H+F7aWmnOdnY4nq2VhU1QbIw0iM95g1vx7+MI6qaQ== From: "Dragan Simic" In-Reply-To: Content-Type: text/plain; charset="utf-8" References: <53332edec449b84d8a962f2b5995667766359772.1763197368.git.geraldogabriel@gmail.com> <3f13841d-030b-0202-61be-412c0ab9df6b@manjaro.org> <7d300769-9803-9c0c-60bb-4a724619d8e0@manjaro.org> Date: Sat, 15 Nov 2025 11:03:19 +0100 Cc: linux-rockchip@lists.infradead.org, "Shawn Lin" , "Lorenzo Pieralisi" , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , "Manivannan Sadhasivam" , "Rob Herring" , "Bjorn Helgaas" , "Heiko Stuebner" , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, "Krzysztof Kozlowski" , "Conor Dooley" , "Johan Jonker" To: "Geraldo Nascimento" MIME-Version: 1.0 Message-ID: Subject: =?utf-8?q?Re=3A?= [PATCH 3/3] =?utf-8?q?arm64=3A?==?utf-8?q?_dts=3A?= =?utf-8?q?_rockchip=3A?= drop max-link-speed =?utf-8?q?=3D?= <2> in helios64 PCIe User-Agent: SOGoMail 5.12.3 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: None X-Rspamd-Fuzzy: 79fd1ee6b46a4d5bc75ee1800a866e5c0cabd930fd8d0f33d70452539bd7c99d792844c6f78cc1edc19ec7c0b159150d703bb5216ec666c196796747076035b9 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251115_020323_794115_84210CA0 X-CRM114-Status: GOOD ( 23.61 ) 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 On Saturday, November 15, 2025 10:55 CET, Geraldo Nascimento wrote: > On Sat, Nov 15, 2025 at 10:42:40AM +0100, Dragan Simic wrote: > > On Saturday, November 15, 2025 10:36 CET, "Dragan Simic" wrote: > > > On Saturday, November 15, 2025 10:10 CET, Geraldo Nascimento wrote: > > > > Shawn Lin from Rockchip strongly discourages attempts to use th= eir > > > > RK3399 PCIe core at 5.0 GT/s speed, citing concerns about catas= trophic > > > > failures that may happen. Even if the odds are low, drop from l= ast user > > > > of this property for the RK3399 platform, helios64. > > > >=20 > > > > Fixes: 755fff528b1b ("arm64: dts: rockchip: add variables for p= cie completion to helios64") > > > > Link: https://lore.kernel.org/all/ffd05070-9879-4468-94e3-b8896= 8b4c21b@rock-chips.com/ > > > > Reported-by: Shawn Lin > > > > Signed-off-by: Geraldo Nascimento > > > > --- > > > > arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts | 1 - > > > > 1 file changed, 1 deletion(-) > > > >=20 > > > > diff --git a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64= .dts b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts > > > > index e7d4a2f9a95e..78a7775c3b22 100644 > > > > --- a/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts > > > > +++ b/arch/arm64/boot/dts/rockchip/rk3399-kobol-helios64.dts > > > > @@ -424,7 +424,6 @@ &pcie=5Fphy { > > > > =20 > > > > &pcie0 { > > > > ep-gpios =3D <&gpio2 RK=5FPD4 GPIO=5FACTIVE=5FHIGH>; > > > > - max-link-speed =3D <2>; > > > > num-lanes =3D <2>; > > > > pinctrl-names =3D "default"; > > > > status =3D "okay"; > > >=20 > > > Looking good to me, this rounds up the prevention of issues > > > coming from buggy PCIe Gen2 on RK3399. > > >=20 > > > Please feel free to include > > >=20 > > > Reviewed-by: Dragan Simic > > >=20 > > > Though, could you, please, add patch 4/3 to this series, which > > > would remove the redundant parameter "max-link-speed =3D <1>" fro= m > > > rk3399-nanopi-r4s.dtsi? > >=20 > > Sorry, I forgot to note that the patch summary would read a bit > > better if it were reworded like this: > >=20 > > arm64: dts: rockchip: Remove redundant max-link-speed from helios= 64 board dts >=20 > No, I think: >=20 > arm64: dts: rockchip: Remove dangerous max-link-speed from helios64 b= oard dts >=20 > Is more accurately described. With focus on the dangerous, we're not > liable. >=20 > Redudant max-link-speed only for nanopi-r4s include definitions I thi= nk! Indeed, you're right. It was obviously an -ENOCOFFEE on my part. :)