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2014-05-27USB: mutual exclusion for resetting a hub and power-managing a portAlan Stern3-0/+19
The USB core doesn't properly handle mutual exclusion between resetting a hub and changing the power states of the hub's ports. We need to avoid sending port-power requests to the hub while it is being reset, because such requests cannot succeed. This patch fixes the problem by keeping track of when a reset is in progress. At such times, attempts to suspend (power-off) a port will fail immediately with -EBUSY, and calls to usb_port_runtime_resume() will update the power_is_on flag and return immediately. When the reset is complete, hub_activate() will automatically restore each port to the proper power state. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: pci_quirks: fix sparse 'symbol not declared' warningKonrad Zapalowicz1-0/+1
This commit fixes the following sparse warning: drivers/usb/host/pci-quirks.c: - 252: warning: symbol 'usb_hcd_amd_remote_wakeup_quirk' was not declared. Should it be static? This function is exported so the fix was to add it's declaration to the header file. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: gadget: rename CONFIG_USB_GADGET_PXA25XPaul Bolle1-1/+1
Commit 193ab2a60700 ("usb: gadget: allow multiple gadgets to be built") basically renamed the Kconfig symbol USB_GADGET_PXA25X to USB_PXA25X. It did not rename the related macros in use at that time. Commit c0a39151a405 ("ARM: pxa: fix inconsistent CONFIG_USB_PXA27X") did so for all but one macro. Rename that last macro too now. Fixes: 193ab2a60700 ("usb: gadget: allow multiple gadgets to be built") Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: storage: ene_ub6250: Use kmemdup instead of kmalloc + memcpyBenoit Taine1-2/+1
This issue was reported by coccicheck using the semantic patch at scripts/coccinelle/api/memdup.cocci Signed-off-by: Benoit Taine <benoit.taine@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: usbtest: add pattern check on pipe in phase of unlink readHuang Rui1-0/+3
TEST 11 unlinks the URB read request for N times. When host and gadget both initialize pattern 1 (mod 63) data series to do IN transfer, the host side function should check the data buffer if it is as mod 63 series, because the data packet which host receivced will follow pattern 1. So this patch adds this checking action. Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: usbtest: fix unlink write error with pattern 1Huang Rui1-0/+10
TEST 12 and TEST 24 unlinks the URB write request for N times. When host and gadget both initialize pattern 1 (mod 63) data series to transfer, the gadget side will complain the wrong data which is not expected. Because in host side, usbtest doesn't fill the data buffer as mod 63 and this patch fixed it. [20285.488974] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready [20285.489181] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Not Active [20285.489423] dwc3 dwc3.0.auto: ep1out-bulk: req ffff8800aa6cb480 dma aeb50800 length 512 last [20285.489727] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Start Transfer' params 00000000 a9eaf000 00000000 [20285.490055] dwc3 dwc3.0.auto: Command Complete --> 0 [20285.490281] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready [20285.490492] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Active [20285.490713] dwc3 dwc3.0.auto: ep1out-bulk: endpoint busy [20285.490909] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Complete [20285.491117] dwc3 dwc3.0.auto: request ffff8800aa6cb480 from ep1out-bulk completed 512/512 ===> 0 [20285.491431] zero gadget: bad OUT byte, buf[1] = 0 [20285.491605] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Set Stall' params 00000000 00000000 00000000 [20285.491915] dwc3 dwc3.0.auto: Command Complete --> 0 [20285.492099] dwc3 dwc3.0.auto: queing request ffff8800aa6cb480 to ep1out-bulk length 512 [20285.492387] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready [20285.492595] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Not Active [20285.492830] dwc3 dwc3.0.auto: ep1out-bulk: req ffff8800aa6cb480 dma aeb51000 length 512 last [20285.493135] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Start Transfer' params 00000000 a9eaf000 00000000 [20285.493465] dwc3 dwc3.0.auto: Command Complete --> 0 Cc: <stable@vger.kernel.org> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: usb5303: add support for reference clock specified in device treeMarek Szyprowski2-2/+65
USB3503 chip supports 8 values of reference clock. The value is specified by REF_SEL[1:0] pins and INT_N line. This patch add support for getting 'refclk' clock, enabling it and setting INT_N line according to the value of the gathered clock. If no clock has been specified, driver defaults to the old behaviour (assuming that clock has been specified by REF_SEL pins from primary reference clock frequencies table). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: separate usb_address0 mutexes for each busTodd E Brandt3-4/+5
This patch creates a separate instance of the usb_address0 mutex for each USB bus, and attaches it to the usb_bus device struct. This allows devices on separate buses to be enumerated in parallel; saving time. In the current code, there is a single, global instance of the usb_address0 mutex which is used for all devices on all buses. This isn't completely necessary, as this mutex is only needed to prevent address0 collisions for devices on the *same* bus (usb 2.0 spec, sec 4.6.1). This superfluous coverage can cause additional delay in system resume on systems with multiple hosts (up to several seconds depending on what devices are attached). Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27xhci: Switch only Intel Lynx Point-LP ports to EHCI on shutdown.Denis Turischev1-1/+3
Patch "xhci: Switch Intel Lynx Point ports to EHCI on shutdown." commit c09ec25d3684cad74d851c0f028a495999591279 is not fully correct It switches both Lynx Point and Lynx Point-LP ports to EHCI on shutdown. On some Lynx Point machines it causes spurious interrupt, which wake the system: bugzilla.kernel.org/show_bug.cgi?id=76291 On Lynx Point-LP on the contrary switching ports to EHCI seems to be necessary to fix these spurious interrupts. Signed-off-by: Denis Turischev <denis@compulab.co.il> Reported-by: Wulf Richartz <wulf.richartz@gmail.com> Cc: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: delete CONFIG_USB_DEVICEFS from defconfigNaoki MATSUMOTO84-84/+0
It no longer occurs in Kconfig. USB: remove CONFIG_USB_DEVICEFS(fb28d58b) leaked remove defconfig. Signed-off-by: Naoki MATSUMOTO <nekomatu+linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: udl: proper error reportingOliver Neukum1-2/+1
Parsing device descriptors can fail due to a failed memory allocation. The error needs to be properly propagated to the upper layers. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: yurex: fix race between probe() and read()Oliver Neukum1-2/+1
There's a window during which read() would return 0 instead of a correct error for no data yet. Reorder initialization to fix the race. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: appledisplay: fix race between reading and writing from the deviceOliver Neukum1-3/+10
The workqueue handler may call appledisplay_bl_get_brightness() while user space calls appledisplay_bl_update_status(). As they share a buffer that must not happen. Use a mutex for mutual exclusion. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: usbtmc: fix DMA on stackOliver Neukum1-1/+5
send_request_dev_dep_msg_in() use a buffer allocated on the stack. Fix by kmalloc()ing the buffer. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: cdc-acm: use BIT macroOliver Neukum1-6/+6
Converting the header to BIT for readability. No functional change. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: gadget: net2280: Add support for PLX USB338XRicardo Ribalda Delgado4-91/+1330
This patch adds support for the PLX USB3380 and USB3382. This driver is based on the driver from the manufacturer. Since USB338X is register compatible with NET2280, I thought that it would be better to include this hardware into net2280 driver. Manufacturer's driver only supported the USB33X, did not follow the Kernel Style and contain some trivial errors. This patch has tried to address this issues. This patch has only been tested on USB338x hardware, but the merge has been done trying to not affect the behaviour of NET2280. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Tested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: gadget: make return of 0 explicitJulia Lawall2-7/+3
Delete unnecessary local variable whose value is always 0 and that hides the fact that the result is always 0. A simplified version of the semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression ret; expression e; position p; @@ -ret = 0; ... when != ret = e return - ret + 0 ; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27phy: Enable USB PHY support for arm64Liviu Dudau1-1/+1
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27xhci: unified loggig of RESET_ON_RESUMEOliver Neukum1-2/+4
Either we log for all chips we set the quirk for or for none. This patch reports it for all chips. Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ehci-platform: add optional reset controller retrievalBoris BREZILLON2-3/+24
On the Allwinner's A31 SoC the reset line connected to the EHCI IP has to be deasserted for the EHCI block to be usable. Add support for an optional reset controller that will be deasserted on power off and asserted on power on. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ohci-platform: Enable optional use of reset controllerMaxime Ripard2-3/+25
The OHCI controllers used in the Allwinner A31 are asserted in reset using a global reset controller. Add optional support for such a controller in the OHCI platform driver. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ohci: sort out dependencies for lpc32xx and omapArnd Bergmann2-4/+4
The dependency on the isp1301 driver is not something that should be in the main OHCI driver but rather the SoC specific part of it. This moves the dependency for LPC32xx into USB_OHCI_HCD_LPC32XX, and changes the 'select ISP1301_OMAP' to a similar 'depends on'. Since the same dependency exists for the client driver, do the same change there. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-omap@vger.kernel.org Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ohci-da8xx can only be built-inArnd Bergmann2-1/+11
The PHY setup code of the TI DaVinci DA8xx OHCI controller uses ad-hoc register access using a pointer that is meant to be used only by the DaVinci platform implementation and that is intentionally not exported to loadable modules. This results in a link error on configurations that use a modular OHCI code on this platform. While the proper solution for this problem would be to implement a real PHY driver shared by ohci-da8xx and musb-da8xx, this patch for now just works around the build error by only allowing the ohci-da8xx code to be built-in. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: xhci: avoid warning for !PM_SLEEPArnd Bergmann1-1/+1
If we build a kernel with PM_SUSPEND set and no PM_SLEEP, we get a build warning in the xhci-plat driver about unused functions. To fix this, use "#ifdef CONFIG_PM_SLEEP", like we do in most other drivers nowadays. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Mathias Nyman <mathias.nyman@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: dwc2: Add function to calculate correct FIFO sizesDinh Nguyen1-0/+68
The dwc2 IP on the SOCFPGA cannot use the default HW configured FIFO sizes. The total FIFO depth as read from GHWCFG3 reports 0x1f80 or 8064 32-bit words. But the GRXFSIZ, GNPTXFSIZ, and HPTXFSIZ register defaults to 0x2000 or 8192 32-bit words. So the driver cannot just use the fifo sizes as read from those registers. For platforms that face the same issue, this commits sets the RX, periodic TX, and non-periodic TX fifo size to those that are recommended v2.93a spec for the DWC2 IP. Implements Method #2 from the Synopsys v2.93a spec for the DWC2. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Paul Zimmerman <paulz@synopsys.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: dwc2: Disable descriptor dma mode by defaultDinh Nguyen1-0/+6
Even though the IP supports Descriptor DMA mode, it does not support SPLIT transactions in this mode. So the driver, in its currently form, will not support LS/FS devices when connected to a HS Hub if Descriptor DMA mode is enabled. So we should just default to disable descriptor dma mode. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27Documentation: dt-bindings: update xhci-platform DT bindingGregory CLEMENT1-1/+6
This commit extends the compatible string list of the xhci-platform binding with the new "armada-375-xhci" and "armada-380-xhci" compatible strings. It is used to describe the XHCI controller which is available in the Armada 375 and 38x SoCs. It also indicates that an optional 'clocks' property is now supported. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: host: xhci-plat: add support for the Armada 375/38x XHCI controllersGregory CLEMENT5-0/+116
The Armada 375 and 38x SoCs come with an XHCI controller that requires some specific initialization related to the MBus windows configuration. This patch adds the support for this special configuration as an XHCI quirk executed during probe. Two new compatible strings are added to identify the Armada 375 and Armada 38x XHCI controllers, and therefore enable the relevant quirk. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: host: xhci-plat: add clock supportGregory CLEMENT2-1/+25
Some platforms (such as the Armada 38x ones) can gate the clock of their USB controller. This patch adds the support for one clock in xhci-plat, by enabling it during probe and disabling it on remove. To achieve this, it adds a 'struct clk *' member in xhci_hcd. While only used for now in xhci-plat, it might be used by other drivers in the future. Moreover, the xhci_hcd structure already holds other members such as msix_count and msix_entries, which are MSI-X specific, and therefore only used by xhci-pci. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: host: xhci-plat: sort the headers in alphabetic orderGregory CLEMENT1-3/+3
Sorting the headers in alphabetic order will help to reduce the conflict when adding new headers later. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27Documentation: dt-bindings: update ehci-orion binding documentationThomas Petazzoni1-0/+5
This commit updates the Device Tree binding documentation of ehci-orion to take into account the fact that we can now optionally pass a clock and a PHY reference. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ehci-orion: add optional PHY supportGregory CLEMENT1-0/+28
This commit extends the ehci-orion so that it can optionally be passed a reference to a PHY through the Device Tree. It will be useful for the Armada 375 SoCs. If no PHY is provided then the behavior of the driver is unchanged. [Thomas: use devm_phy_optional_get() so that we handle -EPROBE_DEFER properly. Also call phy_power_off() when needed, and rename goto labels.] Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ehci-orion: fix clock reference leakingGregory CLEMENT1-16/+29
In order to disable the clock in the ->remove() function, a call to devm_clk_get() is being made, which further increases the reference count of the clock. In order to clean this up, a private structure holding a pointer to the clock is added using the override mechanism provided by the ehci framework. This makes the driver clock handling much more logical. The bug was introduced in v3.6, however the ehci framework allowing to use the override mechanism has only been introduced in v3.8, so this patch won't apply before it. [Thomas: reword commit log, fix goto label names.] Fixes: 8c869edaee07c623066266827371235fb9c12e01 ('ARM: Orion: EHCI: Add support for enabling clocks') Cc: <stable@vger.kernel.org> # v3.8+ Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ehci-orion: rename error goto labels in ehci_orion_drv_probe()Thomas Petazzoni1-9/+9
In preparation to the introduction of additional initialization steps in ehci_orion_drv_probe(), we rename the error goto labels from err1, err2 and err3 names to some more meaningful names. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: ehci-orion: use platform_get_irq() for DT probingThomas Petazzoni1-4/+1
Commit 77dae54ab385033e488d8b07045bc7f8d931740f ('ARM: Kirkwood: ehci-orion: Add device tree binding') added the Device Tree binding for the ehci-orion driver. To achieve that with the irq, it used the irq_of_parse_and_map() function when probed in DT-mode, and platform_get_irq() when probed in non-DT mode. This is not necessary: platform_get_irq() works just as fine in DT-mode, since the conversion from DT information to 'struct resource' is done by the generic layers of the kernel. Therefore, this commit switches back to use just platform_get_irq(). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: common: rename phy-fsm-usb.c to usb-otg-fsm.cPeter Chen5-10/+10
Since usb otg fsm implementation is not related to usb phy. We move it from usb/phy/ to usb/common/, and rename it to reflect its real meaning. Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: move usb/usb-common.c to usb/common/usb-common.cPeter Chen3-1/+6
Since we will have more usb-common things, and it will let usb-common.c be larger and larger, we create a folder named usb/common for all usb common things. Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: dwc2: Remove '0x' notation when using %pad formatFabio Estevam1-2/+2
%pad notation automatically prints in hexadecimal format (with '0x'), so remove the unneeded '0x' to avoid a '0x0x' string. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27Add support for using a MAX3421E chip as a host driver.David Mosberger5-0/+1973
Signed-off-by: David Mosberger <davidm@egauge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27uwb: fix variable set but not used warningsThomas Pugliese3-7/+0
Fix variable set but not used warnings in UWB. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27uwb: comment typo fixThomas Pugliese1-1/+1
Comment typo fix. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27uwb: whitespace and line length cleanupsThomas Pugliese1-128/+166
Fix whitespace and line length issues reported by checkpatch. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: core: remove the Kconfig entry for USB_DEBUGPeter Chen1-7/+0
Since we have already removed the usage of CONFIG_USB_DEBUG, it is meaningless that there is still a configuration entry for CONFIG_USB_DEBUG. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27usb: remove redundant D0 power state setYijing Wang1-1/+0
Pci_enable_device() will set device power state to D0, so it's no need to do it again after call pci_enable_device(). Signed-off-by: Yijing Wang <wangyijing@huawei.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: keyspan: fix potential null pointer dereferenceRickard Strandqvist1-2/+2
Move control-urb dereference to after NULL-check. There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. [Johan: modify commit message somewhat ] [gkh: remove stable tag as it's not a real problem that anyone has ever hit] Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: wusbcore: fix control-pipe directionsJohan Hovold1-2/+2
Fix incorrect pipe directions in control requests (which has been silently fixed up by USB core). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: cdc-acm: use tty-port dtr_rtsJohan Hovold1-12/+20
Add dtr_rts tty-port operation which implements proper DTR/RTS handling (e.g. only lower DTR/RTS during shutdown if HUPCL is set). Note that modem-control locking still needs to be added throughout the driver. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: cdc-acm: remove redundant usb_mark_last_busyJohan Hovold1-1/+0
There's no need to call usb_mark_last_busy after having increased the PM counter in write(). The device will be marked busy by USB core when the PM counter is balanced in the completion handler. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: cdc-acm: do not update PM busy on read errorsJohan Hovold1-1/+3
There's no need to update the runtime PM last_busy field on read urb errors (e.g. when the urb is being killed on shutdown). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27USB: cdc-acm: minimise no-suspend window during shutdownJohan Hovold1-6/+11
Now that acm_set_control() handles runtime PM properly, the only remaining reason for the PM operations in shutdown is to clear the needs_remote_wakeup flag before the final put. Note that this also means that we now need to grab the write_lock to prevent racing with resume. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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