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2013-04-02usb: dwc3: add CONFIG_PM_SLEEP to suspend/resume functionsJingoo Han3-5/+5
Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following build warning when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. Unnecessary CONFIG_PM ifdefs are removed. drivers/usb/dwc3/core.c:682:12: warning: 'dwc3_suspend' defined but not used [-Wunused-function] drivers/usb/dwc3/core.c:709:12: warning: 'dwc3_resume' defined but not used [-Wunused-function] drivers/usb/dwc3/dwc3-omap.c:430:12: warning: 'dwc3_omap_suspend' defined but not used [-Wunused-function] drivers/usb/dwc3/dwc3-omap.c:440:12: warning: 'dwc3_omap_resume' defined but not used [-Wunused-function] drivers/usb/dwc3/dwc3-exynos.c:185:12: warning: 'dwc3_exynos_suspend' defined but not used [-Wunused-function] drivers/usb/dwc3/dwc3-exynos.c:194:12: warning: 'dwc3_exynos_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: fix PHY error handlingFelipe Balbi1-2/+22
PHY layer no longer returns NULL. It will return -ENXIO when PHY layer isn't enabled and we can use that to bail out instead of request a probe deferral. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: fix sparse warningFelipe Balbi1-1/+1
our global '_omap' pointer wasn't marked static. This patch solves the following sparse warning: warning: symbol '_omap' was not declared. \ Should it be static? Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: exynos: use clk_prepare_enable and clk_disable_unprepareVivek Gautam1-3/+3
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> CC: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: exynos: Use of_platform API to create dwc3 core pdevVivek Gautam1-31/+25
Used of_platform_populate() to create dwc3 core platform_device from device tree data. Additionally some cleanup is also done. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> CC: Felipe Balbi <balbi@ti.com> CC: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: dwc3-omap: return -EPROBE_DEFER if probe has not yet executedKishon Vijay Abraham I1-2/+5
return -EPROBE_DEFER from dwc3_omap_mailbox in dwc3-omap.c, if the probe of dwc3-omap has not yet been executed or failed. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: set dma_mask for dwc3_omap deviceKishon Vijay Abraham I2-0/+7
*dma_mask* is not set for devices created from dt data. So filled dma_mask for dwc3_omap device here. And dwc3 core will copy the dma_mask from its parent. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: core: fix wrong OTG event regitser offsetGeorge Cherian2-2/+4
This patch fixes the wrong OTG_EVT,OTG_EVTEN and OTG_STS register offsets. While at that, also add a missing register to debugfs regdump utility. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: phy: remove CONFIG_USB_OTG_UTILSFelipe Balbi1-1/+0
there are no more users of CONFIG_USB_OTG_UTILS left in tree, we can remove it just fine. [ kishon@ti.com : fixed a linking error due to original patch forgetting to change drivers/usb/Makefile ] Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: use num_(in|out)_eps from HW paramsFelipe Balbi1-4/+35
that way we will only tell gadget framework about the endpoints we actually have. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: calculate the number of endpointsFelipe Balbi2-0/+28
hwparams2 holds the number of endpoints which were selected during RTL generation, we can use that on our driver. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: set 'mode' based on selected Kconfig choicesVivek Gautam1-1/+6
Now that machines may select dwc3's working mode (HOST only, GADGET only or DUAL_ROLE) via Kconfig, let's set dwc3's mode based on that, rather than fixing it to whatever hardware says. This way we can skip initializing Gadget/Host in case we are using Host-only/Gadget-only mode respectively. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: workaround: unexpected transtion U3 -> RESUMEFelipe Balbi1-0/+28
In DWC3 versions < 2.50a configured without Hibernation mode enabled, there will be an extra link status change interrupt if device detects host-initiated U3 exit. In that case, core will generate an unnecessary U3 -> RESUME transition which should be ignored by the driver. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: core: define more revisionsFelipe Balbi1-0/+3
Some new revisions of the DWC3 core have been released, let's add our defines to help implementing known erratas. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: don't assign gadget.dev.release directlyFelipe Balbi1-6/+1
udc-core provides a better way to handle release methods, let's use it. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: don't touch gadget.dev.driverFelipe Balbi1-2/+0
udc-core now handles that for us, which means we can remove it from our driver. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: remove unnecessary initializationsFelipe Balbi1-6/+0
udc-core now sets dma-related and parent fields for us, we don't need to do it ourselves. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: core: avoid checkpatch.pl warningFelipe Balbi1-1/+2
trivial patch to avoid "over 80-chars" rule break. No functional changes. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: debugfs: improve debugfs file creationFelipe Balbi1-19/+22
when commit 388e5c5 (usb: dwc3: remove dwc3 dependency on host AND gadget.) changed the way debugfs files are created, it failed to note that 'mode' is necessary in Dual Role mode only while 'testmode' and 'link_state' are valid in Dual Role and Peripheral-only builds. Fix this while also converting pre- processor conditional to C conditionals. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: debugfs: mark our regset structure constFelipe Balbi1-1/+1
nobody should be modifying that structure and debugfs has already being fixed to take const arguments, so we won't cause any new compile warnings. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: debugfs: when unknown, print only the state valueFelipe Balbi1-1/+1
whenever we grab an unknown link_state we were printing the entire register value as a integer but that's hardly useful; instead, let's print only the bogus state value. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: debugfs: add two missing Link StatesFelipe Balbi1-0/+6
for Reset and Resume we were going to print "UNKNOWN" when we actually knew what those were. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: remove our homebrew state mechanismFelipe Balbi2-24/+17
We can reuse the generic implementation via our struct usb_gadget. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: implement gadget state trackingFelipe Balbi2-4/+13
make use of the previously introduced gadget->state field. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: move to threaded IRQFelipe Balbi1-26/+60
by moving to threaded IRQs, we allow our IRQ priorities to be configurable when running with realtime patch. Also, since we're running in thread context, we can call functions which might sleep, such as sysfs_notify() without problems. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: add count field to event bufferFelipe Balbi1-0/+2
we can cache the last read value of the event buffer count register on this field, for later handling. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: add a flags field to event bufferFelipe Balbi1-0/+5
that way we know if a particular event buffer has pending events, or not. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: core: remove bogus comment to our structureFelipe Balbi1-1/+0
that irq field has been removed already. This patch just removes its documentation. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: pci: add basic suspend/resume supportFelipe Balbi1-0/+38
this patch adds basic PM support for the PCI glue layer. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: exynos: add basic suspend/resume supportVikas Sajjan1-0/+34
Adds suspend and resume callbacks to exynos dwc3 driver as part of power management support. This change does gating of dwc3 clock during suspend/resume cycles. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Vikas C Sajjan <vikas.sajjan@linaro.org> CC: Doug Anderson <dianders@chromium.org> Tested-by: Vivek Gautam <gautam.vivek@samsung.com> [ balbi@ti.com : refreshed to current linus/master ] Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: add basic suspend/resume supportFelipe Balbi1-0/+56
this patch implements basic suspend/resume functionality for the OMAP glue layer. Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: remove unused fields from private structureFelipe Balbi1-12/+0
we're not using those fields of the structure, might as well remove them. Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: introduce enable/disable IRQ methodsFelipe Balbi1-15/+32
they will be re-used on suspend/resume implementation. Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: core: add power management supportFelipe Balbi3-0/+212
Add support for basic power management on the dwc3 driver. While there is still lots to improve for full PM support, this minimal patch will already make sure that we survive suspend-to-ram and suspend-to-disk without major issues. Cc: Vikas C Sajjan <vikas.sajjan@linaro.org> Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: save state of pullupsFelipe Balbi2-0/+3
This will be used during resume to verify if we should reconnect our pullups or not. Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: introduce and use enable/disable irq methodsFelipe Balbi1-35/+45
we don't need to enable IRQs until we have a gadget driver loaded and ready to work, so let's delay IRQ enable to ->udc_start() and IRQ disable to ->udc_stop(). While at that, also move the related use of request_irq() and free_irq(). Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: core: explicitly setup and cleanup event buffersFelipe Balbi1-15/+17
Make the call to dwc3_event_buffers_setup() and dwc3_event_buffers_cleanup() explicit, so it's easier to implement PM. Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: gadget: drop now unnecessary flagFelipe Balbi1-1/+0
We don't need the ->register_my_device flag anymore because all UDC drivers have been properly converted. Let's remove every history of it. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: gadget: let udc-core manage gadget->devFelipe Balbi1-15/+2
We don't need to register that device ourselves if we simply set gadget->register_my_device. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: stop using nop-usb-xceivKishon Vijay Abraham I1-67/+0
Now that we have drivers for omap-usb2 phy and omap-usb3 phy, stop using nop-usb-xceiv. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: remove platform data associated with dwc3-omapKishon Vijay Abraham I1-14/+10
omap5 is not going to have support for non-dt boot making the platform data associated with dwc3 useless. Removed it here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-18usb: dwc3: omap: minor fixes to get dt workingKishon Vijay Abraham I1-24/+21
Includes few minor fixes in dwc3-omap like populating the compatible string in a correct way, extracting the utmi-mode property properly and changing the index of get_irq since irq of core is removed from hwmod entry. Also updated the documentation with dwc3-omap device tree binding information. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> [ balbi@ti.com : fix a compile warning introduced by this commit ] Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-08usb: dwc3: ep0: fix sparc64 buildAndrew Morton1-3/+4
drivers/usb/dwc3/ep0.c: In function `__dwc3_ep0_do_control_data': drivers/usb/dwc3/ep0.c:905: error: `typeof' applied to a bit-field Looks like a gcc-3.4.5/sparc64 bug. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04usb: dwc3: gadget: remove unnecessary codeFelipe Balbi1-3/+0
the params variables on dwc3_gadget_conndone_interrupt() is only memset() to zero but never used in that function, so we can safely drop the variable and memset() call. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04usb: dwc3: glue layers shouldn't know about the core IPFelipe Balbi3-6/+0
remove inclusion of "core.h" from all glue layers as they don't need to know details about the core IP. Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04usb: dwc3: omap: fix a typo on of_device_idFelipe Balbi1-3/+3
s/matach/match No functional changes Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-03-04usb: dwc3: core: don't forget to free coherent memoryFelipe Balbi1-0/+1
commit 3921426 (usb: dwc3: core: move event buffer allocation out of dwc3_core_init()) introduced a memory leak of the coherent memory we use as event buffers on dwc3 driver. If the driver is compiled as a dynamically loadable module and use constantly loads and unloads the driver, we will continue to leak the coherent memory allocated during ->probe() because dwc3_free_event_buffers() is never called during ->remove(). Cc: <stable@vger.kernel.org> # v3.7 v3.8 Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-02-08drivers/usb: add missing GENERIC_HARDIRQS dependenciesHeiko Carstens1-1/+1
Add a couple of missing GENERIC_HARDIRQS dependencies to fix link errors like below on s390: ERROR: "devm_request_threaded_irq" [drivers/usb/gadget/mv_udc.ko] undefined! Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25Merge 3.8-rc5 into usb-nextGreg Kroah-Hartman1-0/+1
This fixes up a conflict with drivers/usb/serial/io_ti.c that came up in linux-next. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25Merge tag 'xceiv-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-nextGreg Kroah-Hartman1-4/+20
Felipe writes: usb: xceiv: patches for v3.9 merge window Two new PHY drivers coming here: one for Samsung, one for OMAP. Both architectures are adding USB3 support to mainline kernel. The PHY layer now allows us to have mulitple PHYs of the same type, which is necessary for platforms which provide more than one USB peripheral port. There's also a few cleanups here: removal of __dev* annotations, conversion of a cast to to_delayed_work(), and mxs-phy learns about ->set_suspend.
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