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 9C583A47; Fri, 21 Jun 2024 05:19:26 +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=1718947166; cv=none; b=FnKlvVYHUUazY8O0uOPCY7KJkGbqYkhb29MPUTkPbrWxJiHLzs9ayViUuroGc61Hguv2UidnzomVyGhbICRZpswvt4PDG6ldMyvT1Phu5QsBKbrOuaxQ0kypF5/R6kvVNAjzj6X70cE3VH4VLcpMWbf5/dAQIdHWyCvJZAeEdY8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718947166; c=relaxed/simple; bh=3YVVhjYCZUSLoGVGGclFToYzmDKI4sYqBF5KsrWEuHY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=pMwyQyWcBATLZA4HVcOlbJiemdAvDQuCS32phqVC0VtLERstUOFZNeyPB26VvVKfmfYYG5GYiMCDgEvaTh+C7WEAjeR3URf8CQQ7TtsgRaOI5eqvafBO89ntKCh4cuFrN6HlqrhEQXFVqZj6iqfq1boAKVfNAiVPaiPXd1ssggA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=sH2vOVkL; 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="sH2vOVkL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9CDBDC2BBFC; Fri, 21 Jun 2024 05:19:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718947166; bh=3YVVhjYCZUSLoGVGGclFToYzmDKI4sYqBF5KsrWEuHY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=sH2vOVkL9TgTwRs4rSm12dKDCZ713pDLld/GD17/A+GIs40d/Efw62sjD7CWMnKRy dge28+4vqLN8cZWX2hT/pyeYxngovy52kwAwzEGjuKDV6lCtl9mziMk307/bnG5MIC qEAFnThBN9PZ2Rhdx6wsRZvHVLBA8ZZ1nYdQ8cXg= Date: Fri, 21 Jun 2024 07:19:26 +0200 From: Greg KH To: joswang Cc: Thinh Nguyen , 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: <2024062151-professor-squeak-a4a7@gregkh> References: <20240619114529.3441-1-joswang1221@gmail.com> <2024062051-washtub-sufferer-d756@gregkh> 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Fri, Jun 21, 2024 at 09:40:10AM +0800, joswang wrote: > On Fri, Jun 21, 2024 at 1:16 AM Greg KH wrote: > > > > 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 > > Hello Greg Thinh > > It seems first begin from the commit 1e43c86d84fb ("usb: dwc3: core: > Add DWC31 version 2.00a controller") > in 6.8.0-rc6 branch ? That commit showed up in 6.9, not 6.8. And if so, please resend with a proper "Fixes:" tag. thanks, greg k-h