From patchwork Fri Feb 23 15:21:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 13569255 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 271788288A; Fri, 23 Feb 2024 15:23:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708701789; cv=none; b=fLt0eeRFhyWL6okvqf+x8tEEPxALMJl833mYOFR03MpwRjVuvH2XUqt5F3/fm2asleScPQ0+Yy0fAK7tHw+BBDYi5G7/fXPXME5JCJtPfUH/f46AcWdUJ2Chj0GeeKrsN00LBzrqUwA/emGJL8+3tPeIhyxd2MbbUq11bejFt5w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708701789; c=relaxed/simple; bh=CrZ5ilwQu4dqM9fOfVslL0lVToxLm2aDUIvFF2TgBD0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=o4NuPQ19IIF8P/Cr6s8B09hDVkMqrDoDhJJk2ZrgqByh5vD0jde5uYsXor4bBxGks0UARS/Dwz2LvIBpHfdVH69d6iYFVdLTHZ6YkSl2ld3sBnlo2EDTNIq5E+z6Ptqoq234OLTyXJqt92iKMFAiQDm2aERnWsyldNmWgm0nLOw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gOvQbWkD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gOvQbWkD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A192DC43141; Fri, 23 Feb 2024 15:23:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708701786; bh=CrZ5ilwQu4dqM9fOfVslL0lVToxLm2aDUIvFF2TgBD0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gOvQbWkDRnfkrzZuP2H2k7hnyQfaBAfjbnY8Kc6FcUaAA+StKmWwvUHaCKr5LoRzy EVmK6oz5NpmMom+vxhAhKxmFE1P23Z2zvWndfXUuGWrq3uwibD0igZDeqBUZO33w75 4ais53pwKx+xXyT4gc8mcKwIf4tjym4sv0E0Dkv2ufGjup2thhi4HwBWE241Vif/4N LgdEhOTWlLxAH3atanshZYLIUCinr9KN6PDpsRvAez0HHjmxAYFemvRWkZJkSMt4xA l9ucolIypeabofmj8tspxb+Da+dGW5dockGI7mIeS5uYdTWAGjI0KZVKkUfZqUd5YQ LyyfMQBlLr8cA== Received: from johan by xi.lan with local (Exim 4.97.1) (envelope-from ) id 1rdXOJ-000000005Fl-29ue; Fri, 23 Feb 2024 16:23:11 +0100 From: Johan Hovold To: Bjorn Helgaas , Bjorn Andersson Cc: Konrad Dybcio , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Manivannan Sadhasivam , linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold , stable@vger.kernel.org Subject: [PATCH v2 09/12] arm64: dts: qcom: sc8280xp-crd: disable ASPM L0s for modem and Wi-Fi Date: Fri, 23 Feb 2024 16:21:21 +0100 Message-ID: <20240223152124.20042-10-johan+linaro@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240223152124.20042-1-johan+linaro@kernel.org> References: <20240223152124.20042-1-johan+linaro@kernel.org> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 There are indications that ASPM L0s is not working very well on this machine so disable it also for the modem and Wi-Fi controllers for now. This specifically avoids having the modem and Wi-Fi controllers bounce in an out of L0s when not used (the modem still bounces in and out of L1) as well as intermittent Correctable errors on the Wi-Fi link when not used. Fixes: 9f4f3dfad8cf ("PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops") Cc: stable@vger.kernel.org # 6.7 Signed-off-by: Johan Hovold --- arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts index 7e94a68d5d9f..8fc0380f65a0 100644 --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts @@ -546,6 +546,8 @@ &pcie2a_phy { }; &pcie3a { + aspm-no-l0s; + perst-gpios = <&tlmm 151 GPIO_ACTIVE_LOW>; wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>; @@ -566,6 +568,7 @@ &pcie3a_phy { &pcie4 { max-link-speed = <2>; + aspm-no-l0s; perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>; wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;