From: Greg KH <gregkh@suse.de>
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,
JiSheng Zhang <jszhang3@gmail.com>,
Sarah Sharp <sarah.a.sharp@linux.intel.com>
Subject: [02/20] USB: xhci: fix OS want to own HC
Date: Fri, 26 Aug 2011 15:03:25 -0700 [thread overview]
Message-ID: <20110826220419.048457933@clark.kroah.org> (raw)
In-Reply-To: <20110826220431.GA15382@kroah.com>
2.6.33-longterm review patch. If anyone has any objections, please let us know.
------------------
From: JiSheng Zhang <jszhang3@gmail.com>
commit 6768458b17f9bf48a4c3a34e49b20344091b5f7e upstream.
Software should set XHCI_HC_OS_OWNED bit to request ownership of xHC.
This patch should be backported to kernels as far back as 2.6.31.
Signed-off-by: JiSheng Zhang <jszhang3@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/host/pci-quirks.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -412,7 +412,7 @@ static void __devinit quirk_usb_handoff_
/* If the BIOS owns the HC, signal that the OS wants it, and wait */
if (val & XHCI_HC_BIOS_OWNED) {
- writel(val & XHCI_HC_OS_OWNED, base + ext_cap_offset);
+ writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset);
/* Wait for 5 seconds with 10 microsecond polling interval */
timeout = handshake(base + ext_cap_offset, XHCI_HC_BIOS_OWNED,
next prev parent reply other threads:[~2011-08-27 14:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-26 22:04 [00/20] 2.6.33.19-longterm review Greg KH
2011-08-26 22:03 ` [01/20] staging: rtl8192u: declare MODULE_FIRMWARE Greg KH
2011-08-26 22:03 ` Greg KH [this message]
2011-08-26 22:03 ` [03/20] USB: assign instead of equal in usbtmc.c Greg KH
2011-08-26 22:03 ` [04/20] USB: usb-storage: unusual_devs entry for ARM V2M motherboard Greg KH
2011-08-26 22:03 ` [05/20] USB: Serial: Added device ID for Qualcomm Modem in Sagemcom's HiLo3G Greg KH
2011-08-26 22:03 ` [06/20] atm: br2864: sent packets truncated in VC routed mode Greg KH
2011-08-26 22:03 ` [07/20] hwmon: (ibmaem) add missing kfree Greg KH
2011-08-26 22:03 ` [08/20] ALSA: snd-usb-caiaq: Correct offset fields of outbound iso_frame_desc Greg KH
2011-08-26 22:03 ` [09/20] mm: fix wrong vmap address calculations with odd NR_CPUS values Greg KH
2011-08-26 22:03 ` [10/20] perf tools: do not look at ./config for configuration Greg KH
2011-08-26 22:03 ` [11/20] fs/partitions/efi.c: corrupted GUID partition tables can cause kernel oops Greg KH
2011-08-26 22:03 ` [12/20] befs: Validate length of long symbolic links Greg KH
2011-08-26 22:03 ` [13/20] ALSA: snd_usb_caiaq: track submitted output urbs Greg KH
2011-08-26 22:03 ` [14/20] ALSA: ac97: Add HP Compaq dc5100 SFF(PT003AW) to Headphone Jack Sense whitelist Greg KH
2011-08-26 22:03 ` [15/20] futex: Fix regression with read only mappings Greg KH
2011-08-26 22:03 ` [16/20] x86-32, vdso: On system call restart after SYSENTER, use int $0x80 Greg KH
2011-08-26 22:03 ` [17/20] x86, UV: Remove UV delay in starting slave cpus Greg KH
2011-08-26 22:03 ` [18/20] drm/ttm: fix ttm_bo_add_ttm(user) failure path Greg KH
2011-08-26 22:03 ` [19/20] fuse: check size of FUSE_NOTIFY_INVAL_ENTRY message Greg KH
2011-08-26 22:03 ` [20/20] igb: Fix lack of flush after register write and before delay Greg KH
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