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2010-09-08cxacru: ignore cx82310_eth devicesOndrej Zary1-1/+17
Ignore ADSL routers, which can have the same vendor and product IDs as ADSL modems but should be handled by the cx82310_eth driver. This intentionally ignores device IDs that aren't currently handled by cx82310_eth. There may be other device IDs that perhaps shouldn't be claimed by cxacru. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-12Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/stagingLinus Torvalds1-1/+1
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c: I2C bus multiplexer driver pca954x i2c: Multiplexed I2C bus core support i2c: Use a separate mutex for userspace client lists i2c: Make i2c_default_probe self-sufficient i2c: Drop dummy variable i2c: Move adapter locking helpers to i2c-core V4L/DVB: Use custom I2C probing function mechanism i2c: Add support for custom probe function i2c-dev: Use memdup_user i2c-dev: Remove unnecessary kmalloc casts
2010-08-12Merge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds1-0/+2
* 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (22 commits) param: don't deref arg in __same_type() checks param: update drivers/acpi/debug.c to new scheme param: use module_param in drivers/message/fusion/mptbase.c ide: use module_param_named rather than module_param_call param: update drivers/char/ipmi/ipmi_watchdog.c to new scheme param: lock if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes. param: lock myri10ge_fw_name against sysfs changes. param: simple locking for sysfs-writable charp parameters param: remove unnecessary writable charp param: add kerneldoc to moduleparam.h param: locking for kernel parameters param: make param sections const. param: use free hook for charp (fix leak of charp parameters) param: add a free hook to kernel_param_ops. param: silence .init.text references from param ops Add param ops struct for hvc_iucv driver. nfs: update for module_param_named API change AppArmor: update for module_param_named API change param: use ops in struct kernel_param, rather than get and set fns directly param: move the EXPORT_SYMBOL to after the definitions. ...
2010-08-12Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds6-21/+21
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: mmc_spi: Fix unterminated of_match_table of/sparc: fix build regression from of_device changes of/device: Replace struct of_device with struct platform_device
2010-08-11i2c: Add support for custom probe functionJean Delvare1-1/+1
The probe method used by i2c_new_probed_device() may not be suitable for all cases. Let the caller provide its own, optional probe function. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-11param: simple locking for sysfs-writable charp parametersRusty Russell1-0/+2
Since the writing to sysfs can free the old one, we need to block that when we access the charp variables. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Takashi Iwai <tiwai@suse.de> Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Dan Williams <dcbw@redhat.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: Jing Huang <huangj@brocade.com> Cc: James E.J. Bottomley <James.Bottomley@suse.de> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: David S. Miller <davem@davemloft.net> Cc: user-mode-linux-devel@lists.sourceforge.net Cc: libertas-dev@lists.infradead.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: linux-usb@vger.kernel.org
2010-08-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds116-1833/+4568
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (148 commits) USB: serial: fix stalled writes USB: remove fake "address-of" expressions USB: fix thread-unsafe anchor utiliy routines USB: usbtest: support test device with only one iso-in or iso-out endpoint USB: usbtest: avoid to free coherent buffer in atomic context USB: xhci: Set DMA mask for host. USB: xhci: Don't flush doorbell writes. USB: xhci: Reduce reads and writes of interrupter registers. USB: xhci: Make xhci_set_hc_event_deq() static. USB: xhci: Minimize HW event ring dequeue pointer writes. USB: xhci: Make xhci_handle_event() static. USB: xhci: Remove unnecessary reads of IRQ_PENDING register. USB: xhci: Performance - move xhci_work() into xhci_irq() USB: xhci: Performance - move interrupt handlers into xhci-ring.c USB: xhci: Performance - move functions that find ep ring. USB:: fix linux/usb.h kernel-doc warnings USB: add USB serial ssu100 driver USB: usb-storage: implement autosuspend USB: ehci: fix remove of ehci debugfs dir USB: Add USB 2.0 to ssb ohci driver ...
2010-08-10USB: serial: fix stalled writesJohan Hovold1-5/+10
As David VomLehn points out, it was possible to receive an interrupt before clearing the free-urb flag which could lead to the urb being incorrectly marked as busy. For the same reason, move tx_bytes accounting so that it will never be negative. Note that the free-flags set and clear operations do not need any additional locking as they are manipulated while USB_SERIAL_WRITE_BUSY is set. Reported-by: David VomLehn <dvomlehn@cisco.com> Tested-by: David VomLehn <dvomlehn@cisco.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: remove fake "address-of" expressionsAlan Stern4-23/+15
Fake "address-of" expressions that evaluate to NULL generally confuse readers and can provoke compiler warnings. This patch (as1412) removes three such fake expressions, using "#ifdef"s in their place. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: fix thread-unsafe anchor utiliy routinesChristian Lamparter1-29/+21
This patch fixes a race condition in two utility routines related to the removal/unlinking of urbs from an anchor. If two threads are concurrently accessing the same anchor, both could end up with the same urb - thinking they are the exclusive owner. Alan Stern pointed out a related issue in usb_unlink_anchored_urbs: "The URB isn't removed from the anchor until it completes (as a by-product of completion, in fact), which might not be for quite some time after the unlink call returns. In the meantime, the subroutine will keep trying to unlink it, over and over again." Cc: stable <stable@kernel.org> Cc: Oliver Neukum <oneukum@suse.de> Cc: Greg Kroah-Hartman <greg@kroah.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: usbtest: support test device with only one iso-in or iso-out endpointMing Lei1-1/+4
It is very common that one altsetting may include only one iso-in or iso-out single endpoint, especially for high bandwidth endpoint, so support it. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: usbtest: avoid to free coherent buffer in atomic contextMing Lei1-1/+5
This patch fixes the warning below: [30753.755998] ------------[ cut here ]------------ [30753.755998] WARNING: at /home/tom/git/linux-2.6/linux-2.6-next/arch/x86/include/asm/dma-mapping.h:155 hcd_buffer_free+0xb1/0xd4 [usbcore]() [30753.755998] Hardware name: 6475EK2 [30753.755998] Modules linked in: uvcvideo ehci_hcd usbtest cdc_ether usbnet vfat fat usb_storage nfsd lockd nfs_acl auth_rpcgss exportfs mii tun videodev v4l1_compat v4l2_compat_ioctl32 fuse bridge stp llc sunrpc ipv6 cpufreq_ondemand acpi_cpufreq freq_table mperf kvm_intel kvm arc4 ecb ath5k usbhid mac80211 snd_hda_codec_conexant ch341 usbserial ath cfg80211 thinkpad_acpi snd_hda_intel pcspkr wmi hwmon yenta_socket iTCO_wdt iTCO_vendor_support i2c_i801 e1000e snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc pata_acpi uhci_hcd ohci_hcd usbcore i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: uvcvideo] [30753.755998] Pid: 0, comm: swapper Tainted: G W 2.6.35-rc6-gkh-wl+ #49 [30753.755998] Call Trace: [30753.755998] <IRQ> [<ffffffff8104478a>] warn_slowpath_common+0x80/0x98 [30753.755998] [<ffffffff810447b7>] warn_slowpath_null+0x15/0x17 [30753.755998] [<ffffffffa00ce02d>] hcd_buffer_free+0xb1/0xd4 [usbcore] [30753.755998] [<ffffffffa00c1345>] usb_free_coherent+0x1c/0x1e [usbcore] [30753.755998] [<ffffffffa00b13e4>] simple_free_urb+0x23/0x2f [usbtest] [30753.755998] [<ffffffffa00b210b>] iso_callback+0xbb/0x10f [usbtest] [30753.755998] [<ffffffffa00c7390>] usb_hcd_giveback_urb+0x8c/0xc0 [usbcore] [30753.755998] [<ffffffffa0449b35>] ehci_urb_done+0x84/0x95 [ehci_hcd] [30753.755998] [<ffffffffa044b5a5>] ehci_work+0x41a/0x7dd [ehci_hcd] [30753.755998] [<ffffffffa044e298>] ehci_irq+0x33b/0x370 [ehci_hcd] [30753.755998] [<ffffffff8100fb05>] ? sched_clock+0x9/0xd [30753.755998] [<ffffffff8105e641>] ? sched_clock_local+0x1c/0x82 [30753.755998] [<ffffffff8105e76a>] ? sched_clock_cpu+0xc3/0xce [30753.755998] [<ffffffff81067c7e>] ? trace_hardirqs_off+0xd/0xf [30753.755998] [<ffffffff8105e7b8>] ? cpu_clock+0x43/0x5e [30753.755998] [<ffffffffa00c6999>] usb_hcd_irq+0x45/0xa1 [usbcore] [30753.755998] [<ffffffff81092e02>] handle_IRQ_event+0x20/0xa5 [30753.755998] [<ffffffff81094cea>] handle_fasteoi_irq+0x92/0xd2 [30753.755998] [<ffffffff8100c0ed>] handle_irq+0x1f/0x2a [30753.755998] [<ffffffff8100b75d>] do_IRQ+0x57/0xbe [30753.755998] [<ffffffff8136a693>] ret_from_intr+0x0/0x16 [30753.755998] <EOI> [<ffffffff81223baa>] ? acpi_idle_enter_bm+0x231/0x269 [30753.755998] [<ffffffff81223ba3>] ? acpi_idle_enter_bm+0x22a/0x269 [30753.755998] [<ffffffff812c4b6b>] cpuidle_idle_call+0x99/0xce [30753.755998] [<ffffffff81008dd5>] cpu_idle+0x61/0xaa [30753.755998] [<ffffffff8136374b>] start_secondary+0x1c2/0x1c6 [30753.755998] ---[ end trace 904cfaf7ab4cb1a2 ]--- Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Set DMA mask for host.Sarah Sharp1-0/+9
Tell the USB core that we can do DMA directly (instead of needing it to memory-map the buffers for PIO). If the xHCI host supports 64-bit addresses, set the DMA mask accordingly. Otherwise indicate the host can handle 32-bit DMA addresses. This improves performance because the USB core doesn't have to spend time remapping buffers in high memory into the 32-bit address range. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Don't flush doorbell writes.Sarah Sharp1-5/+0
To tell the host controller that there are transfers on the endpoint rings, we need to ring the endpoint doorbell. This is a PCI MMIO write, which can be delayed until another register read is queued. The previous code would flush the doorbell write by reading the doorbell register after the write. This may take time, and it's not necessary to force the host controller to know about the transfers right away. Don't flush the doorbell register writes. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Reduce reads and writes of interrupter registers.Sarah Sharp1-8/+10
The interrupter register set includes a register that says whether interrupts are pending for each event ring (the IP bit). Each MSI-X vector will get its own interrupter set with separate IP bits. The status register includes an "Event Interrupt (EINT)" bit that is set when an IP bit is set in any of the interrupters. When PCI interrupts are used, the EINT bit exactly mirrors the IP bit in the single interrupter set, and it is a waste of time to check both registers when trying to figure out if the xHC interrupted or another device on the shared IRQ line interrupted. Only check the IP bit to reduce register reads. The IP bit is automatically cleared by the xHC when MSI or MSI-X is enabled. It doesn't make sense to read that register to check for shared interrupts (since MSI and MSI-X aren't shared). It also doesn't make sense to write to that register to clear the IP bit, since it is cleared by the hardware. We can tell whether MSI or MSI-X is enabled by looking at the irq number in hcd->irq. If it's -1, we know MSI or MSI-X is enabled. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Make xhci_set_hc_event_deq() static.Sarah Sharp3-23/+23
Now that the event handler functions no longer use xhci_set_hc_event_deq() to update the event ring dequeue pointer, that function is not used by anything in xhci-ring.c. Move that function into xhci-mem.c and make it static. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Minimize HW event ring dequeue pointer writes.Sarah Sharp1-13/+37
The xHCI specification suggests that writing the hardware event ring dequeue pointer register too often can be an expensive operation for the xHCI hardware to manage. It suggests minimizing the number of writes to that register. Originally, the driver wrote the event ring dequeue pointer after each event was processed. Depending on how the event ring moderation register is set up and how fast the transfers are completing, there may be several events processed for each interrupt. This patch makes the hardware event ring dequeue pointer be written only once per interrupt. Make the transfer event handler and port status event handler only write the software event ring dequeue pointer. Move the updating of the hardware event ring dequeue pointer into the interrupt function. Move the contents of xhci_set_hc_event_deq() into the interrupt handler. The interrupt handler must clear the event handler busy flag, so it might as well also write the dequeue pointer to the same register. This eliminates two 32-bit PCI reads and two 32-bit PCI writes. Reported-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Make xhci_handle_event() static.Sarah Sharp2-2/+1
xhci_handle_event() is now only called from within xhci-ring.c, so make it static. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Remove unnecessary reads of IRQ_PENDING register.Sarah Sharp1-15/+12
Remove a duplicate register read of the interrupt pending register from xhci_irq(). Also, remove waiting on the posted write of that register. The host will see it eventually. It will probably read the register itself before deciding whether to interrupt the system again, forcing the posted write to complete. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Performance - move xhci_work() into xhci_irq()Sarah Sharp1-43/+30
When we move xhci_work() into xhci_irq(), we don't need to read the operational register status field twice. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Performance - move interrupt handlers into xhci-ring.cSarah Sharp3-103/+104
Most of the work for interrupt handling is done in xhci-ring.c, so it makes sense to move the functions that are first called when an interrupt happens (xhci_irq() or xhci_msi_irq()) into xhci-ring.c, so that the compiler can better optimize them. Shorten some lines to make it pass checkpatch. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: xhci: Performance - move functions that find ep ring.Sarah Sharp4-48/+85
I've been using perf to measure the top symbols while transferring 1GB of data on a USB 3.0 drive with dd. This is using the raw disk with /dev/sdb, with a block size of 1K. During performance testing, the top symbol was xhci_triad_to_transfer_ring(), a function that should return immediately if streams are not enabled for an endpoint. It turned out that the functions to find the endpoint ring was defined in xhci-mem.c and used in xhci-ring.c and xhci-hcd.c. I moved a copy of xhci_triad_to_transfer_ring() and xhci_urb_to_transfer_ring() into xhci-ring.c and declared them static. I also made a static version of xhci_urb_to_transfer_ring() in xhci.c. This improved throughput on a 1GB read of the raw disk with dd from 186MB/s to 195MB/s, and perf reported sampling the xhci_triad_to_transfer_ring() 0.06% of the time, rather than 9.26% of the time. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: add USB serial ssu100 driverBill Pemberton3-0/+708
Add support for the Quatech SSU-100 single port usb to serial device. This driver is based on the ftdi_sio.c driver and the original serqt_usb driver from Quatech. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: usb-storage: implement autosuspendAlan Stern1-0/+4
This patch (as1400) adds runtime-PM support to usb-storage. It utilizes the SCSI layer's runtime-PM implementation, so its scope is limited. Currently the only effect is that disk-like devices (such as card readers or flash drives) will be autosuspended if they aren't mounted and their device files aren't open. This would apply, for example, to card readers that don't contain a memory card. Unfortunately this won't interact very well with the removable-media polling normally carried out by hal or DeviceKit. Maybe those programs can be changed to use a longer polling interval, or maybe the default autosuspend time for usb-storage should be set to something below 1 second. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: James Bottomley <James.Bottomley@suse.de> Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: ehci: fix remove of ehci debugfs dirMing Lei2-41/+21
The patch below on gregkh tree only creates 'lpm' file under ehci->debug_dir, but not removes it when unloading module, USB: EHCI: EHCI 1.1 addendum: preparation which can make loading of ehci-hcd module failed after unloading it. This patch replaces debugfs_remove with debugfs_remove_recursive to remove ehci debugfs dir and files. It does fix the bug above, and may simplify the removing procedure. Also, remove the debug_registers, debug_async and debug_periodic field from ehci_hcd struct since they are useless now. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: Add USB 2.0 to ssb ohci driverHauke Mehrtens1-3/+49
This adds USB 2.0 support to ssb ohci driver. This patch was used in OpenWRT for a long time now. CC: Steve Brown <sbrown@cortland.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: cp210x: Add four new device IDsAlessio Igor Bogani1-0/+4
Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: ftdi_sio: device id for Navitatordranch@trinnet.net2-0/+8
This patch is to add a US Interface, Inc. "Navigator" USB device. Specifically, it's a HAM Radio USB sound modem that also incorporates three pairs of unique FTDI serial ports. The standard Linux FTDI serial driver will only recognize the first two serial ports of an unknown FDTI derived device and this patch adds in recognition to these specific new IDs. Signed-off-by: David A. Ranch <dranch@trinnet.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: accept RNDIS configs if there's no alternativeAlan Stern1-1/+3
This patch (as1410) makes a slight change to the strategy used for choosing a default configuration. Currently we skip configs whose first interface is RNDIS, if the kernel wasn't built with the corresponding driver. This risks losing access to the other interfaces in those configs. In addition, if there is only one config then we will end up not configuring the device at all. This changes the logic; now such configurations will be skipped only if there is at least one other config. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Adam Kropelin <akropel1@rochester.rr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: option: add huawei k3765 k4505 devices to work properlyAndrew Bird1-0/+11
This patch adds the product IDs of Huawei's K3765 and K4505 mobile broadband usb modems to option.c. It also adds a quirk to the option probe function so that binding to the device's network interface(class 0xff) is avoided. This is necessary to allow another driver to bind to that, and to avoid programs like wvdial opening a nonfunctioning tty during modem discovery. Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: file_storage: serial parameter even if not test modeMichal Nazarewicz1-9/+11
Moved the serial parameter handling code out of "#ifdef CONFIG_USB_FILE_STORAGE_TEST". This modifies Yann Cantin's commit "USB: Add a serial number parameter to g_file_storage" module as per Alan Stern's request. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Anand Gadiyar <gadiyar@ti.com> Cc: David Brownell <david-b@pacbell.net> Cc: Yann Cantin <yann.cantin@laposte.net>
2010-08-10usb: imx21-hcd: set task state with schedule_timeout_uninterruptible()Kulikov Vasiliy1-1/+1
imx21_hc_reset() uses schedule_timeout() without setting state to STATE_(UN)INTERRUPTIBLE. As it is called in cycle without checking of pending signals, use schedule_timeout_uninterruptible(). Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: serial: enabling support for Segway RMP in ftdi_sioJohn G. Rogers2-0/+6
I have added the ProductID=0xe729 VendorID=FTDI_VID=0x0403 which will enable support for the Segway Robotic Mobility Platform (RMP200) in the ftdi_sio kernel module. Currently, users of the Segway RMP200 must use a RUN+="/sbin/modprobe -q ftdi-sio product=0xe729 vendor=0x0403 in a udev rule to get the ftdi_sio module to handle the usb interface and mount it on /dev/ttyXXX. This is not a good solution because some users will have multiple USB to Serial converters which will use the ftdi_sio module. Signed-off-by: John Rogers <jgrogers@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: add support for clock gatingMarek Szyprowski1-3/+17
This patch adds support for clock gating of the HS/OTG block. On S5PV210 otg gating clock is initally disabled so the driver needs to get and enable it before it can access its registers. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: modify only selected bits in S3C_PHYPWR registerMarek Szyprowski1-2/+4
S5PV210 SoCs has 2 USB PHY interfaces, both enabled by writing zero to S3C_PHYPWR register. HS/OTG driver uses only PHY0, so do not touch bits related to PHY1. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: fix compilation problemMarek Szyprowski1-0/+1
drivers/usb/gadget/s3c-hsotg.c: In function ‘s3c_hsotg_otgreset’: drivers/usb/gadget/s3c-hsotg.c:2816: error: ‘MHZ’ undeclared (first use in this function) drivers/usb/gadget/s3c-hsotg.c:2816: error: (Each undeclared identifier is reported only once drivers/usb/gadget/s3c-hsotg.c:2816: error: for each function it appears in.) Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Add support for external USB clockMaurus Cuelenaere1-0/+19
The PLL that drives the USB clock supports 3 input clocks: 12, 24 and 48Mhz. This patch adds support to the USB driver for setting the correct register bit according to the given clock. This depends on the following patch: [PATCH] ARM: S3C64XX: Add USB external clock definition Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Fix OUT packet request retryBen Dooks1-7/+11
If there is more data in the request than we could fit into a single hardware request, then check when the OutDone event is received if we have more data, and if so, schedule the new data instead of trying to complete the request (and in the case of EP0, sending a 0 packet in the middle of a transfer). Also, move the debug message about the current transfer state before the warning about a bad transfer. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Fix the OUT EP0 limitBen Dooks1-2/+1
The EP0 out limit is the same as the IN limit, so make them the same. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Fix max EP0 IN request lengthBen Dooks1-2/+1
The maximum length for any EP0 IN request on EP0 is 127 bytes, not 128 as the driver currently has it. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Check for new request before enqueing new setupBen Dooks1-1/+1
Before trying a new setup transaction after getting an EP0 in complete interrupt, check that the driver did not try and send more EP0 IN data before enqueing a new setup transaction. This fixes a bug where we cannot send all of the IN data in one go so split the transfer, but then fail to send all the data as we start waiting for a new OUT transaction Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Only load packet per fifo writeBen Dooks1-0/+11
Limit the IN FIFO write to a single packet per attempt at writing, as per the specifications and ensure that we don't return fifo-full so that we can continue writing packets if we have the space. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Add initial detection and setup for dedicated FIFO modeBen Dooks1-2/+38
Add support for the dedicated FIFO mode on newer SoCs such as the S5PV210 partly to improve support and to fix the bug where any non-EP0 IN endpoint requires its own FIFO allocation. To fix this, we ensure that any non-zero IN endpoint is given a TXFIFO using the same allocation method as the periodic case (all our current hardware has enough FIFOs and FIFO memory for a 1:1 mapping) and ensure that the necessary transmission done interrupt is enabled. The default settings from reset for the core point all EPs at FIFO0, used for the control endpoint. However, the controller documentation states that all IN endpoints _must_ have a unique FIFO to avoid any contention during transmission. Note, this leaves us with a large IN FIFO for EP0 (which re-uses the old NPTXFIFO) for an endpoint which cannot shift more than a pair of packets at a time... this is a waste, but it looks like we cannot re-allocate space to the individual IN FIFOs as they are already maxed out (to be confirmed). Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Re-initialise all FIFOs on USB bus resetBen Dooks1-9/+4
The USB documentation suggest that the FIFOs should be reset when a bus reset event happens. Use the s3c_hsotg_init_fifo() to ensure that the FIFO layout is correct and that the FIFOs are flushed before acknowledging the reset. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Avoid overwriting contents of perodic in 'fifo'Ben Dooks1-1/+11
In shared fifo mode (used on older SoCs) the periodic in fifo beahves much more like a packet buffer, discarding old data when writing new data. Avoid this by ensuring that we do not load new transactions in when there is data sitting already in the FIFO. Note, this may not be an observed bug, we are fixing the case that this may happen. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: The NPTX/PTX FIFO sizes are in words, not bytesBen Dooks1-1/+2
Fix a problem where we have been underestimating the space available in the IN PTX/NPTX FIFOs by assuming that they where simply word aligned instead of in number-of-words. This means all length calculations need to be multiplied-by-4. Note, we do not change the information about fifo size or start addresses available to userspace as we assume the user can multiply by four easily and is already knows these values are in words. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: s3c-hsotg: Increase TX fifo limitBen Dooks1-2/+2
Up the FIFO size for the TX to 1024 entries, as this now seems to work with all the cores. This fixes a problem when using large packets on a core with MPS set to 512 can hang due to insufficient space for the writes. The hang arises due to getting the non-periodic FIFO empty IRQ but not being able to satisfy any requests since there is never enough space to write 512 bytes into the buffer. This means we end up with a stream of interrupt requests. It is easier to up the TX FIFO to fill the space we left for it than to try and fix the positions in the code where we should have limited the max-packet size to < TXFIFOSIZE, since the TXFIFOSIZE depends on how the TX FIFOs have been setup. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10usb: host: sl811-hcd: check kzalloc() resultKulikov Vasiliy1-1/+4
If kzalloc() fails exit with -ENOMEM. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: gadget: storage: optional SCSI WRITE FUA bitAndy Shevchenko2-7/+52
MS Windows mounts removable storage in "Removal optimized mode" by default. All the writes to the media are synchronous which is achieved by setting FUA (Force Unit Access) bit in SCSI WRITE(10,12) commands. This prevents I/O requests aggregation in block layer dramatically decreasing performance. This patch brings an option to accept or ignore mentioned bit a) via specifying module parameter "nofua", or b) through sysfs entry /sys/devices/platform/_UDC_/gadget/gadget-lunX/nofua (_UDC_ is the name of the USB Device Controller driver) Patch is based on the work that was done by Denis Karpov for Maemo 5 platform. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Denis Karpov <ext-denis.2.karpov@nokia.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10usb: gadget: storage: strict coversion of 'ro' parameterAndy Shevchenko1-4/+4
Bring a strict way to get the 'ro' parameter from the user. The patch followed by this one adds another boolean parameter. To be consistent Michał Nazarewicz proposed to use simple_strtol() in both cases (correspondend discussion in LKML [1]). Due to simple_strtol() doesn't return error in a good way and we have a boolean parameter the strict_strtoul() is used. [1] http://lkml.org/lkml/2010/7/14/169 Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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