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 0497D3F9D2; Fri, 21 Nov 2025 13:38:44 +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=1763732325; cv=none; b=Sh6w6evhUJZscTrjEdym5joMYOJl4iCN5Oe4OnkCwJumCuBpro9L6vIrxs2NGz+CwxmDs9HYi9EvYlpc7ufa3Nu5GGuKXUngHowveVH3TQDoF5wSJRIi4cMPhJXTYBot8RlnPTe5uCnFQ/e43rDARNFaHH4zv6//cPyKTyaimdI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763732325; c=relaxed/simple; bh=AZT45wirM5hcViiwwT+TmlEGGsKPWv4OkECXQrIh4AI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LqotPg7uZVKOg7wJXUNtIpQ+m1993xnsGEvH+clHkHWnkLWH+4xW5RvlX4qGYC1TzEwJ1WxBkl4H96kllZMtkq/96Z5k3luOcHzfmNjMasS3rq6y528ZJvL3sVmP7s8ujs28ekM3O2OURyH5LklYa5beTDFc3XVypuOV5rquOjE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=05CoWyQm; 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="05CoWyQm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43967C4CEF1; Fri, 21 Nov 2025 13:38:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1763732324; bh=AZT45wirM5hcViiwwT+TmlEGGsKPWv4OkECXQrIh4AI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=05CoWyQmhEdYwylMX4fQtYcyawQNysDluX8i2sZ8MxwDQQCBUVTHe3lhFv80Iuc9j bRVP04ss8lypySQbuAQaFbVJMyriLd/vHiQxRTk7e5bSJoENroQ2KSIISetjAp0yvz qn2RG6NQRU19u9ahOdCxhM1Jf7uRInm2Odf1sXL4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Radhey Shyam Pandey , Michal Simek , Sasha Levin Subject: [PATCH 6.6 081/529] arm64: zynqmp: Revert usb node drive strength and slew rate for zcu106 Date: Fri, 21 Nov 2025 14:06:20 +0100 Message-ID: <20251121130233.904045578@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251121130230.985163914@linuxfoundation.org> References: <20251121130230.985163914@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Radhey Shyam Pandey [ Upstream commit 767ecf9da7b31e5c0c22c273001cb2784705fe8c ] On a few zcu106 boards USB devices (Dell MS116 USB Optical Mouse, Dell USB Entry Keyboard) are not enumerated on linux boot due to commit 'b8745e7eb488 ("arm64: zynqmp: Fix usb node drive strength and slew rate")'. To fix it as a workaround revert to working version and then investigate at board level why drive strength from 12mA to 4mA and slew from fast to slow is not working. Signed-off-by: Radhey Shyam Pandey Signed-off-by: Michal Simek Link: https://lore.kernel.org/r/85a70cb014ec1f07972fccb60b875596eeaa6b5c.1756799774.git.michal.simek@amd.com Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts index 50c384aa253e4..8c3f9735e563b 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts @@ -808,8 +808,8 @@ pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59", "MIO60", "MIO61", "MIO62", "MIO63"; bias-disable; - drive-strength = <4>; - slew-rate = ; + drive-strength = <12>; + slew-rate = ; }; }; -- 2.51.0