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 764EC423A61; Mon, 20 Apr 2026 13:27:47 +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=1776691667; cv=none; b=u9859Fu8kpPEXVehv6kn4c72c6lvSciz0owuNdDdL0avO9nCAG8UcAv6cGaGn9doWY8JiegyeagQN/6hUbhOtDxLL3fLNt4UO8aMXa1mBTvUshxnjnBLNWge0wfgGdQTFxmfv2EKPT5mjVGFePGoe7iP9eyIHPvRiQGoBlGkARA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776691667; c=relaxed/simple; bh=OmmxsabJzBJrL2Ch/21GzDM4yobf31hGV6JyOlyz/jY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rS+UhEZh2o1GkHCi8uKPYJo7dz66yjbu3i9obl+2XJ1STBYobYO7vNBwx9IY9ZeP93WfVbhgkn8DaR0FN9a3ElO9C79tzFCY7r/4eCcE4hFzKHAFT6QfpQrvDrW5udG+u/YL7WPMpi/LRaMZUcK1vauVd5KSwlR4Xn8T6/LHOAE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=m1xO3kOq; 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="m1xO3kOq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A4AFC19425; Mon, 20 Apr 2026 13:27:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776691667; bh=OmmxsabJzBJrL2Ch/21GzDM4yobf31hGV6JyOlyz/jY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m1xO3kOqmrVgWL9I1Lao5bAPbmyJp8aWzaeB4tFTURr6pTb+jI3YGIdxcPOA2Gqp9 DO7teNpTkJQdU3bmwCAiySZP5cVvFTUj9k4GdTkQqY0fpxdG6/UpF5UDzJL902BZaE saIFBEVQon0rzxuvpUlLdq6PG3xBm2cioy53YETKHjAYoSPIQraqFvmOYnFE9pZC3n 5YC/8JjsKTzkffzn0REP3H2lZiUZVWdbN2Zah5JQLx+MXVXDCEqQWgUGDGJxjdWxoN u28j+G2CBoyxWzkgHWvRgd6sAlZMXqJFNEOB9iJRY59eow4Yxtjf1W5RQHvzPvjNOW pOWI2HsiSFDQg== From: Sasha Levin To: patches@lists.linux.dev, stable@vger.kernel.org Cc: Daniel J Blueman , Konrad Dybcio , Bjorn Andersson , Sasha Levin , konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH AUTOSEL 6.18] arm64: dts: qcom: hamoa/x1: fix idle exit latency Date: Mon, 20 Apr 2026 09:19:16 -0400 Message-ID: <20260420132314.1023554-162-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260420132314.1023554-1-sashal@kernel.org> References: <20260420132314.1023554-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.18.23 Content-Transfer-Encoding: 8bit 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 --- LLM Generated explanations, may be completely bogus: Error: Failed to generate final synthesis 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