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 62BBE35295A; Tue, 16 Dec 2025 11:49:30 +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=1765885770; cv=none; b=Ah4XTQdv2Jpsi/2gMUFbcQAZo+ppQrore55QBpmqM0+D3U+3XMpbykQ/BBRjIkHbkUwVoHS+g8LEJyNtnmAsgvDPCQoxMcKbhJcWCvGrxsoU6dzqqOxYRhoPS6F1IehxPN/ljQEUQgA0Ww0i0kSqD44Su4ChfemvQpuQpJabnwQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765885770; c=relaxed/simple; bh=uyHaDDVNbp6ua8sgwA6qksAxPO9PnBkck9Tr3obqhCc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MQ8I7IzkKdpNJcBENGCl9IAZLYfV49kK1eioQ4kgHcoIvxIkNFUh1ateqgDeVs0HcHy3B09KiRBRFOLPBmw6dOoAiCdY90vZVRnlRFnwJS1pNqikaekhrQFPZ02lT6WowolAxrb0Uv5Tm9Xf5LldX/4qA9TIT1gcaF3rY0H3iiU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jY3k09Il; 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="jY3k09Il" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5F11C19422; Tue, 16 Dec 2025 11:49:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765885770; bh=uyHaDDVNbp6ua8sgwA6qksAxPO9PnBkck9Tr3obqhCc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jY3k09Ilvwb25s1rkh+Yv45SS6NK3f9OU8darL5H9GQtFLfiKEXdIAUrhenvadtSI GiBoTkQpa5pRU7/5Q4JxySu3/ONLjxNFff3zFgD7eCdUvnIQzp/TtG+BRgFNbMQGRT oJ2vT4qYwVmdj1Ffg+fedPwm4UeUeS4FUpLrcB/U= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Praveen Talari , Konrad Dybcio , Bjorn Andersson , Sasha Levin Subject: [PATCH 6.17 238/507] arm64: dts: qcom: qrb2210-rb1: Fix UART3 wakeup IRQ storm Date: Tue, 16 Dec 2025 12:11:19 +0100 Message-ID: <20251216111354.121346135@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251216111345.522190956@linuxfoundation.org> References: <20251216111345.522190956@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 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Praveen Talari [ Upstream commit 9c92d36b0b1ea8b2a19dbe0416434f3491dbfaaf ] For BT use cases, pins are configured with pull-up state in sleep state to avoid noise. If IRQ type is configured as level high and the GPIO line is also in a high state, it causes continuous interrupt assertions leading to an IRQ storm when wakeup irq enables at system suspend/runtime suspend. Switching to edge-triggered interrupt (IRQ_TYPE_EDGE_FALLING) resolves this by only triggering on state transitions (high-to-low) rather than maintaining sensitivity to the static level state, effectively preventing the continuous interrupt condition and eliminating the wakeup IRQ storm. Fixes: 9380e0a1d449 ("arm64: dts: qcom: qrb2210-rb1: add Bluetooth support") Signed-off-by: Praveen Talari Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20251110101043.2108414-2-praveen.talari@oss.qualcomm.com Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts index b2e0fc5501c1e..af29c7ed7a685 100644 --- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts +++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts @@ -648,7 +648,7 @@ key_volp_n: key-volp-n-state { &uart3 { /delete-property/ interrupts; interrupts-extended = <&intc GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH>, - <&tlmm 11 IRQ_TYPE_LEVEL_HIGH>; + <&tlmm 11 IRQ_TYPE_EDGE_FALLING>; pinctrl-0 = <&uart3_default>; pinctrl-1 = <&uart3_sleep>; pinctrl-names = "default", "sleep"; -- 2.51.0