From mboxrd@z Thu Jan 1 00:00:00 1970 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 BD4DD322749; Mon, 20 Apr 2026 15:58:02 +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=1776700682; cv=none; b=OK4P+ovNd1q6ooz/equIdQArQOst6oiZ4ihRyRTec59iCvUY/HVI7hjaYUdYie5bNAaGO7K0JVEkNai2//zyN9rx37C/oMx/H9bXZkrZS7P8MlQGbDjHqCRnwVFzFwb5e/jUXIg0XcUTo5TD5e7hWEuu6qhQBLcFVXZ4VVuawH8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776700682; c=relaxed/simple; bh=rWadQ8rEMrUcuqopHTb4hzRpnm1jyezo3XqCKTyijNQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bhMWtzwIXPJoW7dHfJVb1AycktMOcfFlhqhMy5+R94qAJ0g0pE6fUxGff2U0fBXM1G5kSGI+NaOK5oqh+EpFBit3mEDodZ5N7KVa4lWq6MgahboNswyzf+0z/jbaAmIVJKYAwaHrJXN06VNlqPZRfv8FkO7osMGGQywinC802io= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ji93EyjY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ji93EyjY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 533AAC19425; Mon, 20 Apr 2026 15:58:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776700682; bh=rWadQ8rEMrUcuqopHTb4hzRpnm1jyezo3XqCKTyijNQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ji93EyjYlakQK6KnvtoSRCe1NpXxxphJOkjaHkRjrXVxjFYCq/cBBhvGlFa8x+Tx/ 2V6TWMRTO4LawFwb6haP2NCMU9aJ75gB5W8DreXNVZtclgrl7JlD43NJwYipR30Xb5 TsW5N36pCrRKYVBCCUPZmUvAQnAgx4Eww+uuisG4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Daniel J Blueman , Konrad Dybcio , Bjorn Andersson , Sasha Levin Subject: [PATCH 6.18 047/198] arm64: dts: qcom: hamoa/x1: fix idle exit latency Date: Mon, 20 Apr 2026 17:40:26 +0200 Message-ID: <20260420153937.310572635@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260420153935.605963767@linuxfoundation.org> References: <20260420153935.605963767@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Daniel J Blueman [ Upstream commit 3ecea84d2b90bbf934d5ca75514fa902fd71e03f ] Designs based on the Qualcomm X1 Hamoa reference platform report: driver: Idle state 1 target residency too low This is because the declared X1 idle entry plus exit latency of 680us exceeds the declared minimum 600us residency time: entry-latency-us = <180>; exit-latency-us = <500>; min-residency-us = <600>; Fix this to be 320us so the sum of the entry and exit latencies matches the downstream 500us exit latency, as directed by Maulik. Tested on a Lenovo Yoga Slim 7x with Qualcomm X1E-80-100. Fixes: 2e65616ef07f ("arm64: dts: qcom: x1e80100: Update C4/C5 residency/exit numbers") Signed-off-by: Daniel J Blueman Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20260220124626.8611-1-daniel@quora.org Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/qcom/x1e80100.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi index 6d97329995fe7..efe8d5e7079fe 100644 --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi @@ -281,7 +281,7 @@ cluster_c4: cpu-sleep-0 { idle-state-name = "ret"; arm,psci-suspend-param = <0x00000004>; entry-latency-us = <180>; - exit-latency-us = <500>; + exit-latency-us = <320>; min-residency-us = <600>; }; }; -- 2.53.0