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2014-04-30usb: phy: msm: Correct USB PHY Reset sequence for newer platformIvan T. Ivanov
On few legacy platforms, USB PHY is having dedicated reset clk. It is used to reset USB PHY after putting USB PHY into low power mode and for calibration of USB PHY. Putting USB PHY into low power mode is causing ulpi read/write timeout as expected. USB PHY reset clk is not available on newer platform. For 28nm PHY, reset USB PHY after resetting USB LINK. Also reset USB PHY using USB_PHY_PON bit with USB_OTG_HS_PHY_CTRL register after programming USB PHY Override registers as suggested with hardware programming guidelines. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Tim Bird <tim.bird@sonymobile.com> Cc: Mayank Rana <mrana@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Add support for secondary PHY controlIvan T. Ivanov
Allow support to use 2nd HSPHY with USB2 Core. Some platforms may have configuration to allow USB controller work with any of the two HSPHYs present. By default driver configures USB core to use primary HSPHY. Add support to allow user select 2nd HSPHY using DT parameter. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Cc: Manu Gautam <mgautam@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Use reset framework for LINK and PHY resetsIvan T. Ivanov
Using reset framework eliminate need of platform specific callbacks and enable reset lines to be specified in DT files. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Add device tree support and binding informationIvan T. Ivanov
Allows controller to be specified via device tree. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Properly check result from platform_get_irq()Ivan T. Ivanov
Function return negative code on error. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Remove HSUSB prefix from regulator namesIvan T. Ivanov
Prefix did not bring any useful information. Currently none of the MSM platforms define these regulators, so it is safe to rename them. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Remove unused pclk_src_nameIvan T. Ivanov
There are no references to 'pclk_src_name' in plaform code, so it is unused. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Replace custom enum usb_mode_type with enum usb_dr_modeIvan T. Ivanov
Use enum usb_dr_mode and drop default usb_dr_mode from platform data. USB DT bindings states: dr_mode: "...In case this attribute isn't passed via DT, USB DRD controllers should default to OTG...", so remove redundand field. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Fix checkpatch.pl warningsIvan T. Ivanov
This fixes following: WARNING: quoted string split across lines WARNING: Prefer seq_puts to seq_printf Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Remove unnecessarily check for valid regulators.Ivan T. Ivanov
Whether regulators are available or not is checked at driver probe. If they are not available driver will refuse to load, so no need to check them again. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Migrate to Managed Device Resource allocationIvan T. Ivanov
Move memory, regulators, clocks and irq allocation to devm_* variants. Properly check for valid clk handles. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Enable deferred driver probingIvan T. Ivanov
Using platform_driver_probe() prevent driver from requesting probe deferral. Fix this. While at that, also switch to module_platform_driver() and remove __init annotation from probe(). Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Move global regulators variables to driver stateIvan T. Ivanov
Eliminating global variables allows driver to handle multiple device instances. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30usb: phy: msm: Make driver selectable on ARCH_QCOMIvan T. Ivanov
Controller could be found on APQ and MSM platforms, make configuration description more generic. Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-25usb: dwc3: gadget: pretty print Generic CMDsFelipe Balbi
this makes it slightly easier to read generic CMD logs. It also helps make sure we're sending proper parameters for each command. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-25usb: dwc3: gadget: pretty print link statesFelipe Balbi
this makes it slightly easier to read link state change interrupt logs. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-25usb: dwc3: gadget: print both cmd string and numberFelipe Balbi
That way it's easy for humans looking at dmesg and humans(?) looking at Databooks. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: dwc3: exynos: Make provision for vdd regulatorsVivek Gautam
Facilitate getting required 3.3V and 1.0V VDD supply for DWC3 controller on Exynos. With patches for regulators' nodes merged in 3.15: c8c253f ARM: dts: Add regulator entries to smdk5420 275dcd2 ARM: dts: add max77686 pmic node for smdk5250, certain perripherals will now need to ensure that, they request VDD regulators in their drivers, and enable them so as to make them working. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Cc: Anton Tikhomirov <av.tikhomirov@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: musb: dsps: compile suspend/resume only with PM_SLEEPWolfram Sang
Depending on PM is not enough, because only PM_RUNTIME could be selected. Fixes: drivers/usb/musb/musb_dsps.c:703:12: warning: 'dsps_suspend' defined but not used [-Wunused-function] drivers/usb/musb/musb_dsps.c:721:12: warning: 'dsps_resume' defined but not used [-Wunused-function] Signed-off-by: Wolfram Sang <wsa@sang-engineering.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: f_subset: replace PTR_RET with PTR_ERR_OR_ZERODuan Jiong
PTR_RET is deprecated. Do not recommend its usage anymore. Use PTR_ERR_OR_ZERO instead. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: dwc3: add glue layer dependenciesJean Delvare
Glue layers for the DWC3 driver only make sense on specific platforms. Add dependencies so that they are not built where they aren't needed. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: WingMan Kwok <w-kwok2@ti.com> Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: musb: dsps: handle babble interruptsDaniel Mack
When the dsps isr sees a babble error, pass it down to the core for fixup. Also, provide a .reset hook so the core can call us back. A babble interrupt error occured when a USB mass storage device ("CHIPSBNK v3.3.9.1", 1e3d:2093) was disconnected from a AM33xx host. Signed-off-by: Daniel Mack <zonque@gmail.com> Reported-by: Thomas Mellenthin <mellenthin@teufel.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: musb: add a work_struct to recover from babble errorsDaniel Mack
Handle BABBLE interrupt error conditions from a work struct handler. This indirection is necessary as we can't be certain that the phy functions don't sleep. Platform layer implementation may pass a babble error down to the core in order to handle it. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: musb: add reset hook to platform opsDaniel Mack
Babble interrupts require us to reset the DSPS glue layer. In order to handle all other recovery tasks independently, add a new hook for platform-specific implementations of the actual reset. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: Use GFP_ATOMIC when allocating under held spinlockAndreas Larsson
As gr_ep_init must be called with dev->lock held, GFP_KERNEL must not be used. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: Return error code when trying to set ep.maxpacket > ↵Andreas Larsson
ep.maxpacket_limit Make gr_ep_enable fail properly when a call requests a larger ep.maxpacket than ep.maxpacket_limit. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: Add ep.maxpacket_limit to debugfs informationAndreas Larsson
Add information on ep.maxpacket_limit for each endpoint in the debugfs information. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: Use of_property_read_u32_index to access arraysAndreas Larsson
Use an appropriate accessor function for property arrays to make the code nicer and make the code correct if it would ever run on little endian architectures. Suggested by Mark Rutland. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: Use platform_get_irq instead of irq_of_parse_and_mapAndreas Larsson
Use platform_get_irq as no mapping needs to be done. No functional difference for SPARC which is the typical environment for the driver though. Suggested by Mark Rutland. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: Expand devicetree documentationAndreas Larsson
Provide more information on the two different interrupt cases and more information of endpoint buffer sizes. Suggested by Mark Rutland. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: gr_udc: improve platform_device variable nameAndreas Larsson
Rename struct platform_device pointers from ofdev to pdev for clarity, while at that, also use platform_set/get_drvdata() helpers. Suggested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: phy: generic: switch over to IS_ENABLED()Felipe Balbi
when checking if our generic PHY is enabled, it's a lot easier to use IS_ENABLED() instead of manually checking for it. While at that, also remove the bogus defined(MODULE) at the end of the line. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: phy: generic: allow multiples calls to usb_phy_generic_register()Felipe Balbi
it's now very easy to return a platform_device pointer and have the caller pass it as argument when calling usb_phy_generic_unregister(). Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: musb: move usb_phy_generic_{un,}register calls to probe()/remove()Felipe Balbi
This patch is in preparation to supporting calling those functions multiple times. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: phy: rename <linux/usb/usb_phy_gen_xceiv.h> to ↵Felipe Balbi
<linux/usb/usb_phy_generic.h> now that all functions match the driver name, the only missing piece is to rename the header file itself. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: phy: rename usb_nop_xceiv to usb_phy_genericFelipe Balbi
no functional changes, just renaming the function in order to make it slightly clearer what it should be used for, also matching the driver name. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: gadget: only GPL drivers in the gadget and phy frameworkFelipe Balbi
We only support GPL drivers in the USB Gadget Framework, it sounds correct to make all exported symbols GPL too. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: dwc3: core: refactor mode initialization to its own functionFelipe Balbi
Move mode (Host, Peripheral, OTG) initialization to its own function in order to decrease the size of our probe() routine. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-21usb: phy: mv-u3d: switch over to writel/readlFelipe Balbi
by removing the _relaxed suffix, we can build this driver in other architectures. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-16usb: dwc3: core: refactor PHY initializationFelipe Balbi
our probe() routine is too large and we can easily refactor PHY-related code out to another function to make it slightly less painful to read. Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-16usb: dwc3: gadget: clear stall when disabling endpointFelipe Balbi
so it seems like DWC3 IP doesn't clear stalls automatically when we disable an endpoint, because of that, we _must_ make sure stalls are cleared before clearing the proper bit in DALEPENA register. Cc: <stable@vger.kernel.org> # v3.4+ Reported-by: Johannes Stezenbach <js@sig21.net> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-13Linux 3.15-rc1v3.15-rc1Linus Torvalds
2014-04-13mm: Initialize error in shmem_file_aio_read()Geert Uytterhoeven
Some versions of gcc even warn about it: mm/shmem.c: In function ‘shmem_file_aio_read’: mm/shmem.c:1414: warning: ‘error’ may be used uninitialized in this function If the loop is aborted during the first iteration by one of the two first break statements, error will be uninitialized. Introduced by commit 6e58e79db8a1 ("introduce copy_page_to_iter, kill loop over iovec in generic_file_aio_read()"). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-13cifs: Use min_t() when comparing "size_t" and "unsigned long"Geert Uytterhoeven
On 32 bit, size_t is "unsigned int", not "unsigned long", causing the following warning when comparing with PAGE_SIZE, which is always "unsigned long": fs/cifs/file.c: In function ‘cifs_readdata_to_iov’: fs/cifs/file.c:2757: warning: comparison of distinct pointer types lacks a cast Introduced by commit 7f25bba819a3 ("cifs_iovec_read: keep iov_iter between the calls of cifs_readdata_to_iov()"), which changed the signedness of "remaining" and the code from min_t() to min(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-13Merge branch 'slab/next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux Pull slab changes from Pekka Enberg: "The biggest change is byte-sized freelist indices which reduces slab freelist memory usage: https://lkml.org/lkml/2013/12/2/64" * 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: mm: slab/slub: use page->list consistently instead of page->lru mm/slab.c: cleanup outdated comments and unify variables naming slab: fix wrongly used macro slub: fix high order page allocation problem with __GFP_NOFAIL slab: Make allocations with GFP_ZERO slightly more efficient slab: make more slab management structure off the slab slab: introduce byte sized index for the freelist of a slab slab: restrict the number of objects in a slab slab: introduce helper functions to get/set free object slab: factor out calculate nr objects in cache_estimate
2014-04-12Merge branch 'misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild changes from Michal Marek: "Here is the non-critical part of kbuild: - One bogus coccinelle check removed, one check fixed not to suggest the obsolete PTR_RET macro - scripts/tags.sh does not index the generated *.mod.c files - new objdiff tool to list differences between two versions of an object file - A fix for scripts/bootgraph.pl" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: scripts/coccinelle: Use PTR_ERR_OR_ZERO scripts/bootgraph.pl: Add graphic header scripts: objdiff: detect object code changes between two commits Coccicheck: Remove memcpy to struct assignment test scripts/tags.sh: Ignore *.mod.c
2014-04-12sym53c8xx_2: Set DID_REQUEUE return code when aborting squeueMikulas Patocka
This patch fixes I/O errors with the sym53c8xx_2 driver when the disk returns QUEUE FULL status. When the controller encounters an error (including QUEUE FULL or BUSY status), it aborts all not yet submitted requests in the function sym_dequeue_from_squeue. This function aborts them with DID_SOFT_ERROR. If the disk has full tag queue, the request that caused the overflow is aborted with QUEUE FULL status (and the scsi midlayer properly retries it until it is accepted by the disk), but the sym53c8xx_2 driver aborts the following requests with DID_SOFT_ERROR --- for them, the midlayer does just a few retries and then signals the error up to sd. The result is that disk returning QUEUE FULL causes request failures. The error was reproduced on 53c895 with COMPAQ BD03685A24 disk (rebranded ST336607LC) with command queue 48 or 64 tags. The disk has 64 tags, but under some access patterns it return QUEUE FULL when there are less than 64 pending tags. The SCSI specification allows returning QUEUE FULL anytime and it is up to the host to retry. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: Matthew Wilcox <matthew@wil.cx> Cc: James Bottomley <JBottomley@Parallels.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12powerpc: Don't try to set LPCR unless we're in hypervisor modePaul Mackerras
Commit 8f619b5429d9 ("powerpc/ppc64: Do not turn AIL (reloc-on interrupts) too early") added code to set the AIL bit in the LPCR without checking whether the kernel is running in hypervisor mode. The result is that when the kernel is running as a guest (i.e., under PowerKVM or PowerVM), the processor takes a privileged instruction interrupt at that point, causing a panic. The visible result is that the kernel hangs after printing "returning from prom_init". This fixes it by checking for hypervisor mode being available before setting LPCR. If we are not in hypervisor mode, we enable relocation-on interrupts later in pSeries_setup_arch using the H_SET_MODE hcall. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12futex: update documentation for ordering guaranteesDavidlohr Bueso
Commits 11d4616bd07f ("futex: revert back to the explicit waiter counting code") and 69cd9eba3886 ("futex: avoid race between requeue and wake") changed some of the finer details of how we think about futexes. One was a late fix and the other a consequence of overlooking the whole requeuing logic. The first change caused our documentation to be incorrect, and the second made us aware that we need to explicitly add more details to it. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull yet more networking updates from David Miller: 1) Various fixes to the new Redpine Signals wireless driver, from Fariya Fatima. 2) L2TP PPP connect code takes PMTU from the wrong socket, fix from Dmitry Petukhov. 3) UFO and TSO packets differ in whether they include the protocol header in gso_size, account for that in skb_gso_transport_seglen(). From Florian Westphal. 4) If VLAN untagging fails, we double free the SKB in the bridging output path. From Toshiaki Makita. 5) Several call sites of sk->sk_data_ready() were referencing an SKB just added to the socket receive queue in order to calculate the second argument via skb->len. This is dangerous because the moment the skb is added to the receive queue it can be consumed in another context and freed up. It turns out also that none of the sk->sk_data_ready() implementations even care about this second argument. So just kill it off and thus fix all these use-after-free bugs as a side effect. 6) Fix inverted test in tcp_v6_send_response(), from Lorenzo Colitti. 7) pktgen needs to do locking properly for LLTX devices, from Daniel Borkmann. 8) xen-netfront driver initializes TX array entries in RX loop :-) From Vincenzo Maffione. 9) After refactoring, some tunnel drivers allow a tunnel to be configured on top itself. Fix from Nicolas Dichtel. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits) vti: don't allow to add the same tunnel twice gre: don't allow to add the same tunnel twice drivers: net: xen-netfront: fix array initialization bug pktgen: be friendly to LLTX devices r8152: check RTL8152_UNPLUG net: sun4i-emac: add promiscuous support net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO net: ipv6: Fix oif in TCP SYN+ACK route lookup. drivers: net: cpsw: enable interrupts after napi enable and clearing previous interrupts drivers: net: cpsw: discard all packets received when interface is down net: Fix use after free by removing length arg from sk_data_ready callbacks. Drivers: net: hyperv: Address UDP checksum issues Drivers: net: hyperv: Negotiate suitable ndis version for offload support Drivers: net: hyperv: Allocate memory for all possible per-pecket information bridge: Fix double free and memory leak around br_allowed_ingress bonding: Remove debug_fs files when module init fails i40evf: program RSS LUT correctly i40evf: remove open-coded skb_cow_head ixgb: remove open-coded skb_cow_head igbvf: remove open-coded skb_cow_head ...
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