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* Merge branch 'for-linus' of ↵Linus Torvalds2012-08-012-10/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull second vfs pile from Al Viro: "The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the deadlock reproduced by xfstests 068), symlink and hardlink restriction patches, plus assorted cleanups and fixes. Note that another fsfreeze deadlock (emergency thaw one) is *not* dealt with - the series by Fernando conflicts a lot with Jan's, breaks userland ABI (FIFREEZE semantics gets changed) and trades the deadlock for massive vfsmount leak; this is going to be handled next cycle. There probably will be another pull request, but that stuff won't be in it." Fix up trivial conflicts due to unrelated changes next to each other in drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits) delousing target_core_file a bit Documentation: Correct s_umount state for freeze_fs/unfreeze_fs fs: Remove old freezing mechanism ext2: Implement freezing btrfs: Convert to new freezing mechanism nilfs2: Convert to new freezing mechanism ntfs: Convert to new freezing mechanism fuse: Convert to new freezing mechanism gfs2: Convert to new freezing mechanism ocfs2: Convert to new freezing mechanism xfs: Convert to new freezing code ext4: Convert to new freezing mechanism fs: Protect write paths by sb_start_write - sb_end_write fs: Skip atime update on frozen filesystem fs: Add freezing handling to mnt_want_write() / mnt_drop_write() fs: Improve filesystem freezing handling switch the protection of percpu_counter list to spinlock nfsd: Push mnt_want_write() outside of i_mutex btrfs: Push mnt_want_write() outside of i_mutex fat: Push mnt_want_write() outside of i_mutex ...
| * gadgetfs: clean upAl Viro2012-07-292-10/+8
| | | | | | | | | | | | | | | | | | sigh... * opened files have non-NULL dentries and non-NULL inodes * close_filp() needs current->files only if the file had been in descriptor table. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds2012-08-011-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge Andrew's second set of patches: - MM - a few random fixes - a couple of RTC leftovers * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (120 commits) rtc/rtc-88pm80x: remove unneed devm_kfree rtc/rtc-88pm80x: assign ret only when rtc_register_driver fails mm: hugetlbfs: close race during teardown of hugetlbfs shared page tables tmpfs: distribute interleave better across nodes mm: remove redundant initialization mm: warn if pg_data_t isn't initialized with zero mips: zero out pg_data_t when it's allocated memcg: gix memory accounting scalability in shrink_page_list mm/sparse: remove index_init_lock mm/sparse: more checks on mem_section number mm/sparse: optimize sparse_index_alloc memcg: add mem_cgroup_from_css() helper memcg: further prevent OOM with too many dirty pages memcg: prevent OOM with too many dirty pages mm: mmu_notifier: fix freed page still mapped in secondary MMU mm: memcg: only check anon swapin page charges for swap cache mm: memcg: only check swap cache pages for repeated charging mm: memcg: split swapin charge function into private and public part mm: memcg: remove needless !mm fixup to init_mm when charging mm: memcg: remove unneeded shmem charge type ...
| * | netvm: propagate page->pfmemalloc from skb_alloc_page to skbMel Gorman2012-08-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The skb->pfmemalloc flag gets set to true iff during the slab allocation of data in __alloc_skb that the the PFMEMALLOC reserves were used. If page splitting is used, it is possible that pages will be allocated from the PFMEMALLOC reserve without propagating this information to the skb. This patch propagates page->pfmemalloc from pages allocated for fragments to the skb. It works by reintroducing and expanding the skb_alloc_page() API to take an skb. If the page was allocated from pfmemalloc reserves, it is automatically copied. If the driver allocates the page before the skb, it should call skb_propagate_pfmemalloc() after the skb is allocated to ensure the flag is copied properly. Failure to do so is not critical. The resulting driver may perform slower if it is used for swap-over-NBD or swap-over-NFS but it should not result in failure. [davem@davemloft.net: API rename and consistency] Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: David S. Miller <davem@davemloft.net> Cc: Neil Brown <neilb@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Eric B Munson <emunson@mgebm.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Mel Gorman <mgorman@suse.de> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge tag 'random_for_linus' of ↵Linus Torvalds2012-08-012-9/+5
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull random subsystem patches from Ted Ts'o: "This patch series contains a major revamp of how we collect entropy from interrupts for /dev/random and /dev/urandom. The goal is to addresses weaknesses discussed in the paper "Mining your Ps and Qs: Detection of Widespread Weak Keys in Network Devices", by Nadia Heninger, Zakir Durumeric, Eric Wustrow, J. Alex Halderman, which will be published in the Proceedings of the 21st Usenix Security Symposium, August 2012. (See https://factorable.net for more information and an extended version of the paper.)" Fix up trivial conflicts due to nearby changes in drivers/{mfd/ab3100-core.c, usb/gadget/omap_udc.c} * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: (33 commits) random: mix in architectural randomness in extract_buf() dmi: Feed DMI table to /dev/random driver random: Add comment to random_initialize() random: final removal of IRQF_SAMPLE_RANDOM um: remove IRQF_SAMPLE_RANDOM which is now a no-op sparc/ldc: remove IRQF_SAMPLE_RANDOM which is now a no-op [ARM] pxa: remove IRQF_SAMPLE_RANDOM which is now a no-op board-palmz71: remove IRQF_SAMPLE_RANDOM which is now a no-op isp1301_omap: remove IRQF_SAMPLE_RANDOM which is now a no-op pxa25x_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op omap_udc: remove IRQF_SAMPLE_RANDOM which is now a no-op goku_udc: remove IRQF_SAMPLE_RANDOM which was commented out uartlite: remove IRQF_SAMPLE_RANDOM which is now a no-op drivers: hv: remove IRQF_SAMPLE_RANDOM which is now a no-op xen-blkfront: remove IRQF_SAMPLE_RANDOM which is now a no-op n2_crypto: remove IRQF_SAMPLE_RANDOM which is now a no-op pda_power: remove IRQF_SAMPLE_RANDOM which is now a no-op i2c-pmcmsp: remove IRQF_SAMPLE_RANDOM which is now a no-op input/serio/hp_sdc.c: remove IRQF_SAMPLE_RANDOM which is now a no-op mfd: remove IRQF_SAMPLE_RANDOM which is now a no-op ...
| * | pxa25x_udc: remove IRQF_SAMPLE_RANDOM which is now a no-opTheodore Ts'o2012-07-191-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a no-op; interrupt randomness is now collected unconditionally in a very low-overhead fashion; see commit 775f4b297b. The IRQF_SAMPLE_RANDOM flag was scheduled to be removed in 2009 on the feature-removal-schedule, so this patch is preparation for the final removal of this flag. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Russell King <linux@arm.linux.org.uk>
| * | omap_udc: remove IRQF_SAMPLE_RANDOM which is now a no-opTheodore Ts'o2012-07-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a no-op; interrupt randomness is now collected unconditionally in a very low-overhead fashion; see commit 775f4b297b. The IRQF_SAMPLE_RANDOM flag was scheduled to be removed in 2009 on the feature-removal-schedule, so this patch is preparation for the final removal of this flag. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Felipe Balbi <balbi@ti.com>
| * | goku_udc: remove IRQF_SAMPLE_RANDOM which was commented outTheodore Ts'o2012-07-191-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a no-op; interrupt randomness is now collected unconditionally in a very low-overhead fashion; see commit 775f4b297b. The IRQF_SAMPLE_RANDOM flag was scheduled to be removed in 2009 on the feature-removal-schedule. The flag was only commented-out in the driver, but we should just remove it altogether. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Felipe Balbi <balbi@ti.com>
* | gadget/r8a66597: remove conditional compilation of clk codeViresh Kumar2012-07-312-13/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With addition of dummy clk_*() calls for non CONFIG_HAVE_CLK cases in clk.h, there is no need to have clk code enclosed in #ifdef CONFIG_HAVE_CLK, #endif macros. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Mike Turquette <mturquette@linaro.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: viresh kumar <viresh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | gadget/m66592: remove conditional compilation of clk codeViresh Kumar2012-07-312-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With addition of dummy clk_*() calls for non CONFIG_HAVE_CLK cases in clk.h, there is no need to have clk code enclosed in #ifdef CONFIG_HAVE_CLK, #endif macros. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Mike Turquette <mturquette@linaro.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: viresh kumar <viresh.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'usb-3.6-rc1' of ↵Linus Torvalds2012-07-2627-742/+3340
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg Kroah-Hartman: "Here's the big USB patch set for the 3.6-rc1 merge window. Lots of little changes in here, primarily for gadget controllers and drivers. There's some scsi changes that I think also went in through the scsi tree, but they merge just fine. All of these patches have been in the linux-next tree for a while now. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up trivial conflicts in include/scsi/scsi_device.h (same libata conflict that Jeff had already encountered) * tag 'usb-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits) usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams usb: Add quirk detection based on interface information usb: s3c-hsotg: Add header file protection macros in s3c-hsotg.h USB: ehci-s5p: Add vbus setup function to the s5p ehci glue layer USB: add USB_VENDOR_AND_INTERFACE_INFO() macro USB: notify phy when root hub port connect change USB: remove 8 bytes of padding from usb_host_interface on 64 bit builds USB: option: add ZTE MF821D USB: sierra: QMI mode MC7710 moved to qcserial USB: qcserial: adding Sierra Wireless devices USB: qcserial: support generic Qualcomm serial ports USB: qcserial: make probe more flexible USB: qcserial: centralize probe exit path USB: qcserial: consolidate usb_set_interface calls USB: ehci-s5p: Add support for device tree USB: ohci-exynos: Add support for device tree USB: ehci-omap: fix compile failure(v1) usb: host: tegra: pass correct pointer in ehci_setup() USB: ehci-fsl: Update ifdef check to work on 64-bit ppc USB: serial: keyspan: Removed unrequired parentheses. ...
| * \ Merge tag 'xceiv-for-v3.6' of ↵Greg Kroah-Hartman2012-07-066-51/+57
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next usb: phy: patches for v3.6 merge window We are starting to support multiple USB phys as we should thanks for Kishon's work. DeviceTree support for USB PHYs won't come until discussion with DeviceTree maintainer is finished. Together with that series, we have one fix for twl4030 which missed a IRQF_ONESHOT annotation when requesting a threaded IRQ without a top half handler, and removal of an unused variable compilation warning to isp1301_omap.
| | * | usb: phy: fix return value check of usb_get_phyKishon Vijay Abraham I2012-07-026-39/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | usb_get_phy will return -ENODEV if it's not able to find the phy. Hence fixed all the callers of usb_get_phy to check for this error condition instead of relying on a non-zero value as success condition. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: otg: support for multiple transceivers by a single controllerKishon Vijay Abraham I2012-06-256-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a linked list for keeping multiple PHY instances with different types so that we can have separate USB2 and USB3 PHYs on one single board. _get_phy_ has been changed so that the controller gets the transceiver by type. _remove_phy_ has been added to let the phy be removed from the phy list. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: otg: utils: rename function name in OTG utilsKishon Vijay Abraham I2012-06-256-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | _transceiver() in otg.c is replaced with _phy. usb_set_transceiver is replaced with usb_add_phy to make it similar to other usb standard function names like usb_add_hcd. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | Merge tag 'gadget-for-v3.6' of ↵Greg Kroah-Hartman2012-07-0623-691/+3283
| |\ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next usb: gadget: patches for v3.6 merge window This is quite a big pull request and contains patches all over the place. omap_udc is now a bit cleaner after removing omap2 support, fixing some checkpatch.pl warnings and errors, switching over to generic map/unmap routines and preventing a NULL pointer de-reference. s3c-hsotg has been switched over to devm_* API, got some locking fixes and improvements and it also got an implementation for the pullup() method. the mass storage gadgets changed default value of the removable parameter, dropped some unused options and made "file" and "ro" module_parameters read-only in some cases. ffs function got support for HID descriptor. Some UDCs have been converted to clk_prepare_enable() and clk_disable_unprepare(). Marvell now got support for its USB3 controller in mainline after introducing its mv_u3d_core.c driver.
| | * | usb: gadget: at91_udc: Propagate devicetree to gadget driversAlexandre Pereira da Silva2012-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fill dev.of_node of gadget drivers, so they can use devicetree Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: fsl_udc: Propagate devicetree to gadget driversAlexandre Pereira da Silva2012-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fill dev.of_node of gadget drivers, so they can use devicetree Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: s3c-hsotg: Propagate devicetree to gadget driversAlexandre Pereira da Silva2012-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fill dev.of_node of gadget drivers, so they can use devicetree Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: lpc32xx_udc: Propagate devicetree to gadget driversAlexandre Pereira da Silva2012-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fill dev.of_node of gadget drivers, so they can use devicetree Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: mass_storage: make "file" and "ro" read only in some casesMichal Nazarewicz2012-07-022-6/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The “file” sysfs entry for LUNs was writable even for non-removable LUNs and the fsg_store_file() function did not check whether LUN is removable or not. This made it possible to change or even close LUN's backing file. The same is true for “ro” sysfs entry and LUNs simulating CD-ROM. For those LUNs, the file should not be writable. This commit introduces two new device_attribute structures for those two special cases so that the file/ro sysfs entries are made non-writable when not desired. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: Fix g_ether interface link statusKevin Cernekee2012-06-251-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A "usb0" interface that has never been connected to a host has an unknown operstate, and therefore the IFF_RUNNING flag is (incorrectly) asserted when queried by ifconfig, ifplugd, etc. This is a result of calling netif_carrier_off() too early in the probe function; it should be called after register_netdev(). Similar problems have been fixed in many other drivers, e.g.: e826eafa6 (bonding: Call netif_carrier_off after register_netdevice) 0d672e9f8 (drivers/net: Call netif_carrier_off at the end of the probe) 6a3c869a6 (cxgb4: fix reported state of interfaces without link) Fix is to move netif_carrier_off() to the end of the function. Cc: stable@vger.kernel.org Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: hsotg: pullup method implementation for s3c-hsotg UDC driverLukasz Majewski2012-06-221-3/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds pullup method implementation for UDC s3c-hsotg driver. It is needed for e.g. CCG - Configurable Composite Gadget, when user space configuration change request device disconnection from USB bus (done via calling usb_gadget_connect/disconnect, which calls UDC's pullup method). Implementation of pullup method has caused removal of phy_enable and core_init methods from udc_start to pullup. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: mass_storage: fail fsg_store_file() early if colud not open fileMichal Nazarewicz2012-06-221-23/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, when a new value is stored to the “file” sysfs entry, fsg_store_file() will release existing backing file and only then attempt to open a new one. If that fails, no new backing file is open. This commit changes the fsg_lun_open() so that it closes existing backing file only after the new backing file has been successfully opened. With that change, fsg_store_file() may use it to perform an atomic open operation with guarantee that logical unit will either point to the new backing file or still to the old one. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Alan Stern <stern@rowland.harvard.edu Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: storage_common: remove FSG_BUFFHD_STATIC_BUFFER supportMichal Nazarewicz2012-06-221-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since f_mass_storage stopped using FSG_BUFFHD_STATIC_BUFFER (because it caused buffers not to be page aligned which did not work well with at least some UDCs), no code was using it. Removing not to bloat the code too much. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: acm_ms: need to set max_speedSteve Bennett2012-06-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Failing to set max_speed prevents g_acm_ms working with many drivers which check for driver->max_speed < USB_SPEED_FULL, including pxa25x_udc Signed-off-by: Steve Bennett <steveb@workware.net.au> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: lpc32xx_udc: move clock init to clock frameworkAlexandre Pereira da Silva2012-06-221-60/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moves clock initialization to the clock framework. Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com> Acked-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: fsl_mxc_udc: do not depend on grouped clocksFabio Estevam2012-06-221-43/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the new common clock infrastructure, the following clocks should be used on i.MX drivers: ipg, per and ahb. Adapt fsl_mxc_udc to follow this new behaviour to fix the following probe error: Freescale High-Speed USB SOC Device Controller driver (Apr 20, 2007) fsl-usb2-udc fsl-usb2-udc: clk_get("usb") failed fsl-usb2-udc: probe of fsl-usb2-udc failed with error -2 Reported-by: Christoph Fritz <chf.fritz@googlemail.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: mv: Add USB 3.0 device driver for Marvell PXA2128 chip.Yu Xu2012-06-224-0/+2428
| | | | | | | | | | | | | | | | | | | | | | | | | | | | It supports Marvell USB 3.0 device controller for PXA2128 chip. Signed-off-by: Yu Xu <yuxu@marvell.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: hsotg: samsung: smp Provide *_lock functions abstraction layer for SMP SoCsLukasz Majewski2012-06-151-49/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For SMP processors the spin_lock_irqsave is _only_ able to disable interrupt on a core on which it is executed. Therefore there may be a situation when other cores raise s3c-hsotg IRQ. Then there are several places where critical sections can be overwritten. To protect the above thread, a spin_lock in the interrupt handler has been added. Due to coherent memory view (especially L1 cache) the spin lock variable control access to IRQ handler only for one CPU core. In this way serialization to access this driver is provided and hence several spin_lock_* routines could be removed from IRQ handler's related functions. The complete_request_lock function has been removed since all its calls are performed from interrupt (spin lock protected) context. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: hsotg: samsung: Protect the udc_stop routine with spinlockLukasz Majewski2012-06-151-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: hsotg: samsung: Replace endpoint specific locks with a global lockLukasz Majewski2012-06-151-26/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The endpoint specific locks are replaced with a global lock. This is crucial for running s3c-hsotg driver on a SMP SoC. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: hidg: register OUT INT endpoint for SET_REPORTDaniel Mack2012-06-151-43/+165
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hidg function driver currently handles its SET_REPORT calls via EP0. This is the implicit behaviour when no OUT interrupt endpoint is configured and generally works fine. The problem is that due to EP0's role in the gadget framework, we cannot hold back packets and control traffic flow to sync it to the char device, and hence there's a high risk of loosing packets with this implementation. This patch adds an OUT interrupt endpoint to the interface and queues a fix number of request to catch SET_REPORT events. According to the specs, host drivers should always use the dedicated OUT endpoint when present. The char device's read implementation was rewritten to retrieve data from the list of completed output requests. Signed-off-by: Daniel Mack <zonque@gmail.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: mass_storage: add documentationMichal Nazarewicz2012-06-151-62/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds Documentation/usb/mass-storage.txt file. It contains description of how to use the mass storage gadget from user space. It elaborates on madule parameters and sysfs interface more then it was written in the comments in the source code. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: mass_storage: remove unused optionsMichal Nazarewicz2012-06-151-40/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit removes thread_name and lun_name_format fields from the fsg_config structure. Those fields are not used by any in-tree code and their usefulness is rather theoretical. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: imx_udc.c: Use clk_prepare_enable/clk_disable_unprepareFabio Estevam2012-06-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prepare the clock before enabling it. Cc: <linux-usb@vger.kernel.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: fsl_mxc_udc.c : Use clk_prepare_enable/clk_disable_unprepareFabio Estevam2012-06-121-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prepare the clock before enabling it. Cc: <linux-usb@vger.kernel.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: composite: fix ep->maxburst initializationFelipe Balbi2012-06-121-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bMaxBurst field on endpoint companion descriptor is supposed to contain the number of burst minus 1. When passing that to controller drivers, we should be passing the real number instead (by incrementing 1). While doing that, also fix the assumption on dwc3 that value comes decremented by one. Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: uvc: Add super-speed support to UVC webcam gadgetBhupesh Sharma2012-06-044-35/+247
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds super-speed support to UVC webcam gadget. Also in this patch: - We add the configurability to pass bInterval, bMaxBurst, mult factors for video streaming endpoint (ISOC IN) through module parameters. - We use config_ep_by_speed helper routine to configure video streaming endpoint. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: uvc: Use macro for interrupt endpoint status size instead of ↵Bhupesh Sharma2012-06-041-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | using a MAGIC number This patch adds a MACRO for the UVC video control status (interrupt) endpoint and removes the magic number which was being used earlier. Some UDCs have issues supporting an interrupt IN endpoint having a max packet size less than a particular value (say 32). It is easier in that case to simply change the MACRO value instead of changing the max packet size value at a number of locations. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: uvc: Fix string descriptor STALL issue when multiple uvc ↵Bhupesh Sharma2012-06-041-16/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | functions are added to a configuration This patch solved the string descriptor STALL issue when we add multiple UVC functions in a single configuration using a 'webcam.c' like composite driver. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: pch_udc: Fix likely misuse of | for &Joe Perches2012-06-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using | with a constant is always true. Likely this should have be &. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: ffs: add HID descriptor support.Koen Beel2012-06-041-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When writing the descriptors to the ep0 file of functionfs, the HID descriptors where not recognized which caused the initialization from user space to fail. Signed-off-by: Koen Beel <koen.beel@barco.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: f_mass_storage: change default value of the removable parameterMichal Nazarewicz2012-06-041-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the default value of the removable module parameter from “y” to “n”. This comes with line with file_storag's default and seems to be a better default. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: s3c-hsotg: Use devm_* functions in s3c-hsotg.c fileSachin Kamat2012-06-041-40/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_* functions are used to replace kzalloc, request_mem_region, ioremap and request_irq functions in probe call. With the usage of devm_* functions explicit freeing and unmapping is not required. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: omap_udc: use generic map/unmap routinesFelipe Balbi2012-06-031-39/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes use of the generic map/unmap routines on the omap_udc driver. Removes some useless and duplicated code. Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: omap_udc: kfree(NULL) is safeFelipe Balbi2012-06-031-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | we don't need to check for _req because kfree(NULL) is safe. Also, if someone actually passes a NULL pointer to be freed by usb_ep_free_request(), he deserves any issue he faces. Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: omap_udc: remove possiblity of NULL pointer de-referenceFelipe Balbi2012-06-031-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when allocating a request, it's better programming practice to make sure we return NULL if allocation failed. This will ensure that, if struct usb_request isn't the first member on our structure, we don't cheat the gadget driver into thinking allocating worked because pointer isn't 0. Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: omap_udc: let it work as a moduleFelipe Balbi2012-06-031-16/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | this also helps removing a few lines of boilerplate code. Signed-off-by: Felipe Balbi <balbi@ti.com>
| | * | usb: gadget: omap_udc: remove useless printFelipe Balbi2012-06-031-10/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | that print isn't needed at all. Remove it and move the use_dma reinitialization to probe() function. Note that ideally we would drop all cpu_is_* and machine_is_* checks from this driver instead. Later patches will come to get rid of those. Signed-off-by: Felipe Balbi <balbi@ti.com>