From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1163231Ab1FAI3L (ORCPT ); Wed, 1 Jun 2011 04:29:11 -0400 Received: from cantor2.suse.de ([195.135.220.15]:44664 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1163211Ab1FAI3A (ORCPT ); Wed, 1 Jun 2011 04:29:00 -0400 X-Mailbox-Line: From linux@blue.kroah.org Wed Jun 1 17:12:26 2011 Message-Id: <20110601081225.794665632@blue.kroah.org> User-Agent: quilt/0.48-16.4 Date: Wed, 01 Jun 2011 17:12:07 +0900 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Hemant Pedanekar , Jesse Barnes , Greg Kroah-Hartman Subject: [157/165] PCI: Add quirk for setting valid class for TI816X Endpoint In-Reply-To: <20110601081349.GA10017@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.39-stable review patch. If anyone has any objections, please let us know. ------------------ Content-Length: 1561 Lines: 45 From: Hemant Pedanekar commit 63c4408074cbcc070ac17fc10e524800eb9bd0b0 upstream. TI816X (common name for DM816x/C6A816x/AM389x family) devices configured to boot as PCIe Endpoint have class code = 0. This makes kernel PCI bus code to skip allocating BARs to these devices resulting into following type of error when trying to enable them: "Device 0000:01:00.0 not available because of resource collisions" The device cannot be operated because of the above issue. This patch adds a ID specific (TI VENDOR ID and 816X DEVICE ID based) 'early' fixup quirk to replace class code with PCI_CLASS_MULTIMEDIA_VIDEO as class. Signed-off-by: Hemant Pedanekar Signed-off-by: Jesse Barnes Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2784,6 +2784,16 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_IN DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); #endif +static void __devinit fixup_ti816x_class(struct pci_dev* dev) +{ + /* TI 816x devices do not have class code set when in PCIe boot mode */ + if (dev->class == PCI_CLASS_NOT_DEFINED) { + dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n"); + dev->class = PCI_CLASS_MULTIMEDIA_VIDEO; + } +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_TI, 0xb800, fixup_ti816x_class); + static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) {