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 E0DBA2BEFF0; Tue, 26 Aug 2025 11:19:45 +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=1756207186; cv=none; b=oDWiPPWNbCZuVvZj75cxmcdlqL71y4hoy1zHhfr6Ju3aQTe3tVYzf0eJLd6TLXYtSoHfCXqxNL9vGk8oOkWbAbHrVbAyqjiSDSkJs2HIg10RxY2B6zSBKnbun3mGy258YJJvhI0ETzL12vxpRIbJ03HB0io9PjqTNCKfM2gpWVA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756207186; c=relaxed/simple; bh=xXWaWvgj6o34RA+QSQYMxEWhzbJHFq6Le8Z9OnrCu6Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BhhtSjYqeuEMSeNV6k7BGK+lj93rM9FD9TTxDIQ7xJJPT2owo5h+AN0yfe+crwjV2EziSvBDDYi6nzHZh6b/NVpzI29AiPj/FM/jnjfDzOowONJWT3IN3K20VKl8cc9NZ/gogPhty1Zp4FPSg4EeFRoB8YgAUDLAFzC3awGA2tE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KTNZkWq3; 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="KTNZkWq3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7077EC4CEF1; Tue, 26 Aug 2025 11:19:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756207185; bh=xXWaWvgj6o34RA+QSQYMxEWhzbJHFq6Le8Z9OnrCu6Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KTNZkWq3xk5wZfo5l5Wq1+panZ9jNd7hYSt2lydX6jV2+HO2dkjKywUgybpERgv0D nYY2JOu/cT2cv1XMObaR+ofi52DceRGJLDzEPAGzM5CjhGmJhiB2H/hYAlzkN3XwUw ecD573ype3NtfLLU5WcfxVYj7/ZBNWRDUMrd55tU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kaustabh Chakraborty , Krzysztof Kozlowski Subject: [PATCH 6.16 052/457] arm64: dts: exynos7870: add quirk to disable USB2 LPM in gadget mode Date: Tue, 26 Aug 2025 13:05:36 +0200 Message-ID: <20250826110938.638338888@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110937.289866482@linuxfoundation.org> References: <20250826110937.289866482@linuxfoundation.org> User-Agent: quilt/0.68 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 6.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kaustabh Chakraborty commit e9355e894aebcbeacffd284644749190cc5f33a4 upstream. In gadget mode, USB connections are sluggish. The device won't send packets to the host unless the host sends packets to the device. For instance, SSH-ing through the USB network would apparently not work unless you're flood-pinging the device's IP. Add the property snps,usb2-gadget-lpm-disable to the dwc3 node, which seems to solve this issue. Fixes: d6f3a7f91fdb ("arm64: dts: exynos: add initial devicetree support for exynos7870") Cc: stable@vger.kernel.org # v6.16 Signed-off-by: Kaustabh Chakraborty Link: https://lore.kernel.org/r/20250626-exynos7870-dts-fixes-v1-1-349987874d9a@disroot.org Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/exynos/exynos7870.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7870.dtsi b/arch/arm64/boot/dts/exynos/exynos7870.dtsi index 5cba8c9bb403..d5d347623b90 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos7870.dtsi @@ -327,6 +327,7 @@ phys = <&usbdrd_phy 0>; usb-role-switch; + snps,usb2-gadget-lpm-disable; }; }; -- 2.50.1