From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH libata-dev#upstream-fixes] ahci: request all PCI BARs Date: Mon, 17 Mar 2008 08:27:28 -0400 Message-ID: <47DE63B0.2070209@garzik.org> References: <47D6643A.6060001@gmail.com> <47D6646F.9070109@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:47621 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754339AbYCQM1a (ORCPT ); Mon, 17 Mar 2008 08:27:30 -0400 In-Reply-To: <47D6646F.9070109@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: IDE/ATA development list , linux-pci@atrey.karlin.mff.cuni.cz, Linux Kernel , Greg KH , Alan Cox Tejun Heo wrote: > ahci is often implemented with accompanying SFF compatible interface > and legacy IDE driver may attach to the legacy IO ports when the > controller is already claimed by ahci and vice-versa. This patch > makes ahci use pcim_iomap_regions_request_all() so that all IO regions > are claimed on attach. > > Signed-off-by: Tejun Heo > --- > drivers/ata/ahci.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > Index: work/drivers/ata/ahci.c > =================================================================== > --- work.orig/drivers/ata/ahci.c > +++ work/drivers/ata/ahci.c > @@ -2234,7 +2234,10 @@ static int ahci_init_one(struct pci_dev > if (rc) > return rc; > > - rc = pcim_iomap_regions(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); > + /* AHCI controllers often implement SFF compatible interface. > + * Grab all PCI BARs just in case. > + */ > + rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); > if (rc == -EBUSY) > pcim_pin_device(pdev); applied this, and the devres function