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 94FAB50280; Wed, 19 Jun 2024 05:10:17 +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=1718773817; cv=none; b=X69YY2o8XI9RX7GQ8IA0WcGRBI7O0uSdGvtGEjIiMuFPm74tzbvTpvnfO8YFmKqh6DOVxOHVFJ5iwpmMZaGlGcqD/ne40I8weh41twVzpxGEXefowlp4L9R4115YilS9CE3mZAg0DQ2PR946VzSdTpNlEkU27w7Exr4FtLa6xcE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718773817; c=relaxed/simple; bh=BMRHDddXQbT7sXetp9OyuKJuPZPI4jJlgICusGcSAhE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=f2tDkrKRsTxYkAEHlcqp5nNweeclc5saC08Y93Mb36om8TkJfwY8S/1ov1we4RoFucvhm9246cLUW1WMbJZLRDC8KQ0Fzq/1n7eqp3nt0nX8cwYGIAvk/HcDGYRYwzH6bU8QelkiDZWZW3X4ofDP9jsR9zfQujgHLY9S7AC+NpY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1wWjIkSo; 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="1wWjIkSo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA968C2BBFC; Wed, 19 Jun 2024 05:10:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718773817; bh=BMRHDddXQbT7sXetp9OyuKJuPZPI4jJlgICusGcSAhE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=1wWjIkSouz9yjWWMclSXwVU7txRXxEYi+YuLoIOHdg5MUwIPSxES8k2FHfq7+dV/7 t7y5tcoD5Q20mDVEKIsuV+8o7q3ZFl/ypBW+5IMl5Wde4EOB8aypOBrUjtzs8agl9F pMbEgSwlsLfLs3QdYq6N8R7xhR0X+kg0/ODlFWHM= Date: Wed, 19 Jun 2024 07:10:15 +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 v6] usb: dwc3: core: Workaround for CSR read timeout Message-ID: <2024061947-grandpa-bucktooth-4f55@gregkh> References: <20240619050125.4444-1-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: <20240619050125.4444-1-joswang1221@gmail.com> On Wed, Jun 19, 2024 at 01:01:25PM +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 > --- > v5 -> v6: no change > v4 -> v5: no change If there was no change, why was there new versions submitted? Please always document what was done. greg k-h