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 69EA51AB8F0; Thu, 20 Jun 2024 17:16:15 +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=1718903775; cv=none; b=pVcKgHbapiLd4cZ/gQ7EDiB/zN0WHReow6h007mZxqHHLelGHUu0+MJKoqBGz1VbFASrl6T262h+P6puUdfNAJuK/MABM2Iv7uNPZ/RW5QyMRjKAr6dCxw2BZHOxxR2+QlXETlnPu+3T/IO6pUrn9mrRFd3I9JZB7LPbqaFgWYQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718903775; c=relaxed/simple; bh=nTUjyvPJwsjHGiR5ySPNqFmwFDArPcRIv7+YmkcFFU4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fY1v2zv4YeiBzKkqmocRUBiVS278+e75Gv7Z59Czk7YairUjHxEXnLbHJnd2QA4V2c/qIT65mYJoWZopJaBlv0wXPkruhgGGWIEVg92ykPH+ePSMbpF3udIudnSncXhgaIl1rSWvvmmaawI5bSjjJY5iR8ElxO+LcA+6s5lA0Fk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Nfy4McdF; 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="Nfy4McdF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83661C2BD10; Thu, 20 Jun 2024 17:16:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718903774; bh=nTUjyvPJwsjHGiR5ySPNqFmwFDArPcRIv7+YmkcFFU4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Nfy4McdF386W/gXzEyZ1mJEuc3YaDXHDojaIAbWNI66xGKUkCTx8dGqwzj1fP+Xgt zX9gmQnLf+m5SJXfZa1lty5JuVhZdZh8Bn8Re6+zKZ//1CziFcwaaiNynNH4FwgZb4 Zh5ut+a0k+bKp1lIfiKzYKE75F77VqLCTUOoU2xg= Date: Thu, 20 Jun 2024 19:16:12 +0200 From: Greg KH To: joswang Cc: Thinh.Nguyen@synopsys.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Jos Wang Subject: Re: [PATCH v7] usb: dwc3: core: Workaround for CSR read timeout Message-ID: <2024062051-washtub-sufferer-d756@gregkh> References: <20240619114529.3441-1-joswang1221@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240619114529.3441-1-joswang1221@gmail.com> On Wed, Jun 19, 2024 at 07:45:29PM +0800, joswang wrote: > From: Jos Wang > > This is a workaround for STAR 4846132, which only affects > DWC_usb31 version2.00a operating in host mode. > > There is a problem in DWC_usb31 version 2.00a operating > in host mode that would cause a CSR read timeout When CSR > read coincides with RAM Clock Gating Entry. By disable > Clock Gating, sacrificing power consumption for normal > operation. > > Cc: stable@vger.kernel.org > Signed-off-by: Jos Wang What commit id does this fix? How far back should it be backported in the stable releases? thanks, greg k-h