From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: Re: [PATCH] PCI: pciehp: Add quirk for QDF2400 Command Completed
 erratum
Date: Mon, 7 May 2018 15:43:49 +0300
Message-ID: <20180507124349.GC2879@lahna.fi.intel.com>
References: <1525602662-1873-1-git-send-email-okaya@codeaurora.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <1525602662-1873-1-git-send-email-okaya@codeaurora.org>
Sender: linux-kernel-owner@vger.kernel.org
To: Sinan Kaya <okaya@codeaurora.org>
Cc: linux-pci@vger.kernel.org, timur@codeaurora.org, sulrich@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Kees Cook <keescook@chromium.org>, Markus Elfring <elfring@users.sourceforge.net>, Keith Busch <keith.busch@intel.com>, Lukas Wunner <lukas@wunner.de>, open list <linux-kernel@vger.kernel.org>
List-Id: linux-arm-msm@vger.kernel.org

On Sun, May 06, 2018 at 06:30:53AM -0400, Sinan Kaya wrote:
> The QDF2400 controller does not set the Command Completed bit unless
> writes to the Slot Command register change "Control" bits.  Command
> Completed is never set for writes that only change software notification
> "Enable" bits.  This results in timeouts like this:
> 
> pciehp 0000:00:00.0:pcie004: Timeout on hotplug command 0x1038
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>

Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>