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* mmc: SDHC 3.0: correct f_min calculation for SD 3.0 specZhangfei Gao2010-10-232-3/+12
| | | | | | | While we're at it, add symbols for SDHCI_MAX_DIV_SPEC_{200,300}. Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: SDHC 3.0: Base clock frequency change in spec 3.0Zhangfei Gao2010-10-232-2/+8
| | | | | | | | | | | | SDHC Spec 3.0: Capabilities Register bits[15-08] are Base Clock Frequency 1.0/2.0: Capabilities Register bits[13-08] are Base Clock Frequency Signed-off-by: Zhangfei Gao <zgao6@marvell.com> Cc: David Vrabel <david.vrabel@csr.com> Cc: Matt Fleming <matt@console-pimps.org> Cc: Michal Miroslaw <mirqus@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: SDHC 3.0: support 10-bit divided clock modeZhangfei Gao2010-10-232-5/+25
| | | | | | | | Signed-off-by: Zhangfei Gao <zgao6@marvell.com> Cc: Michał Mirosław <mirqus@gmail.com> Cc: David Vrabel <david.vrabel@csr.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: sdhci: Make consistent use of CONFIG_MMC_DEBUG for "DEBUG"gingGeorge G. Davis2010-10-231-1/+1
| | | | | | | | | | | | | The "6882a8c sdhci: Add better ADMA error reporting" commit added sdhci_show_adma_error() which is built when DEBUG is defined. Since we already have CONFIG_MMC_DEBUG used elsewhere in this driver, may as well make consistent use of that config knob instead. Signed-off-by: George G. Davis <gdavis@mvista.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: fix display of .5 KiBAdrian Hunter2010-10-231-2/+2
| | | | | | | Append .5 to KiB display when there are an odd number of sectors. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: fix memory allocation segment limitsAdrian Hunter2010-10-231-6/+6
| | | | | | | | Correctly allocate memory to meet the host controller driver's maximum segment size and count limits. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: move files from sysfs to debugfsAndy Shevchenko2010-10-231-35/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | As proposed by Greg K-H it is more logical to keep files for the mmc_test driver under debugfs. Additionally this patch brings seq_file API for show() method. It allows to write unlimited data to the file. Example of usage: # mount -t debugfs none /sys/kernel/debug # modprobe mmc_test [ 581.395843] mmc_test mmc0:0001: Card claimed for testing. # echo 25 > /sys/kernel/debug/mmc0/mmc0\:0001/test [ 604.568542] mmc0: Starting tests of card mmc0:0001... [ 604.582733] mmc0: Test case 25. Best-case read performance into scattered pages... [ 604.923553] mmc0: Transfer of 8192 sectors (4096 KiB) took 0.124664314 seconds (33644 kB/s, 32856 KiB/s) [ 604.933227] mmc0: Result: OK [ 604.936248] mmc0: Tests completed. # cat /sys/kernel/debug/mmc0/mmc0\:0001/test Test 25: 0 1 8192 0.124664314 33644784 Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Greg KH <greg@kroah.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Chris Ball <cjb@laptop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: collect data and show it via sysfs by demandAndy Shevchenko2010-10-231-2/+169
| | | | | | | | | | | | | | | | | | | | | | Make it possible to get test results via sysfs. It helps to do tests non-interactively. We have the file created under sysfs already and can use it to show test results. Prior to this patch, the "test" file under each card's sysfs node was write-only, and results were obtained by looking at dmesg. This patch improves programmatic access to the test results, making them available by reading back from the same "test" file: [root@host mmc0:e624]# echo 6 > test [root@host mmc0:e624]# cat test Test 6: 2 [cjb@laptop.org: changelog improvements] Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Chris Ball <cjb@laptop.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: change simple_strtol() to strict_strtol()Andy Shevchenko2010-10-231-2/+3
| | | | | | | | | | | It's better to use strict_strtol() to convert user's input and strictly check it. At least it forbids to interpret wrong input as a 0 and prevents to run all tests. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: use API to check card typeAndy Shevchenko2010-10-231-1/+1
| | | | | | | | | | There are methods to check card type. Let's use them instead of direct checking type bits. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc_test: fix performance tests that go over max_blk_countAdrian Hunter2010-10-231-48/+135
| | | | | | | | | | | The host controller driver limits I/O transfers to maximum transfer size, maximum block count, maximum segment size and maximum segment count. The performance tests were not obeying these limits which meant they would not work with some drivers. This patch fixes that. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: Convert "mutex" to semaphoreThomas Gleixner2010-10-231-1/+1
| | | | | | | | Get rid of init_MUTEX[_LOCKED]() and use sema_init() instead. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mmc@vger.kernel.org Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: rename dev_to_mmc_card() to mmc_dev_to_card()Andy Shevchenko2010-10-233-9/+9
| | | | | | | | | Global symbols should use their subsystem name in a prefixed fashion. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: make mmc_dev_to_card() macro publicAndy Shevchenko2010-10-233-5/+2
| | | | | | | | | | | Conversion from struct device to struct mmc_card is used more than in one place. Due to this it's better to have public macro for such thing. Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: Use snprintf, not sprintf.JiebingLi2010-10-231-1/+2
| | | | | | | | | | Fix an issue found by klockwork. Just paranoia. Signed-off-by: JiebingLi <jiebing.li@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: USB SD Host Controller (USHC) driverDavid Vrabel2010-10-233-0/+581
| | | | | | | | | | Add a driver for USB SD Host Controller devices. These devices are Cypress Astoria chips with firmware compliant with issue 2 of CSR's USHC specification. [cjb: adapt to block layer deprecation of max_{hw,phys}_segs] Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: Remove distinction between hw and phys segmentsMartin K. Petersen2010-10-2323-50/+30
| | | | | | | | | We have deprecated the distinction between hardware and physical segments in the block layer. Consolidate the two limits into one in drivers/mmc/. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: au1xmmc.c: use resource_size()H Hartley Sweeten2010-10-231-1/+1
| | | | | | | | | [cjb: rebased patch against Linus] Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: <linux-mmc@vger.kernel.org> Acked-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: atmel-mci.c: use resource_size()H Hartley Sweeten2010-10-231-1/+1
| | | | | | | | | [cjb: rebased patch against Linus] Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: at91_mci.c: use resource_size()H Hartley Sweeten2010-10-231-4/+4
| | | | | | | | | | | [cjb: rebased patch against Linus] Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: <linux-mmc@vger.kernel.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* Merge branch 'for_linus' of ↵Linus Torvalds2010-10-231-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kdb,debug_core: adjust master cpu switch logic against new debug_core locking debug_core: refactor locking for master/slave cpus x86,kgdb: remove unnecessary call to kgdb_correct_hw_break() debug_core: disable hw_breakpoints on all cores in kgdb_cpu_enter() kdb,kgdb: fix sparse fixups kdb: Fix oops in kdb_unregister kdb,ftdump: Remove reference to internal kdb include kdb: Allow kernel loadable modules to add kdb shell functions debug_core: stop rcu warnings on kernel resume debug_core: move all watch dog syncs to a single function x86,kgdb: fix debugger hw breakpoint test regression in 2.6.35
| * kdb,kgdb: fix sparse fixupsJason Wessel2010-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following sparse warnings: kdb_main.c:328:5: warning: symbol 'kdbgetu64arg' was not declared. Should it be static? kgdboc.c:246:12: warning: symbol 'kgdboc_early_init' was not declared. Should it be static? kgdb.c:652:26: warning: incorrect type in argument 1 (different address spaces) kgdb.c:652:26: expected void const *ptr kgdb.c:652:26: got struct perf_event *[noderef] <asn:3>*pev The one in kgdb.c required the (void * __force) because of the return code from register_wide_hw_breakpoint looking like: return (void __percpu __force *)ERR_PTR(err); Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2010-10-23155-2500/+9252
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (141 commits) USB: mct_u232: fix broken close USB: gadget: amd5536udc.c: fix error path USB: imx21-hcd - fix off by one resource size calculation usb: gadget: fix Kconfig warning usb: r8a66597-udc: Add processing when USB was removed. mxc_udc: add workaround for ENGcm09152 for i.MX35 USB: ftdi_sio: add device ids for ScienceScope USB: musb: AM35x: Workaround for fifo read issue USB: musb: add musb support for AM35x USB: AM35x: Add musb support usb: Fix linker errors with CONFIG_PM=n USB: ohci-sh - use resource_size instead of defining its own resource_len macro USB: isp1362-hcd - use resource_size instead of defining its own resource_len macro USB: isp116x-hcd - use resource_size instead of defining its own resource_len macro USB: xhci: Fix compile error when CONFIG_PM=n USB: accept some invalid ep0-maxpacket values USB: xHCI: PCI power management implementation USB: xHCI: bus power management implementation USB: xHCI: port remote wakeup implementation USB: xHCI: port power management implementation ... Manually fix up (non-data) conflict: the SCSI merge gad renamed the 'hw_sector_size' member to 'physical_block_size', and the USB tree brought a new use of it.
| * | USB: mct_u232: fix broken closeJohan Hovold2010-10-221-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix regression introduced by commit f26788da3b342099d2b02d99ba1cb7f154d6ef7b (USB: serial: refactor generic close) which broke driver close(). This driver uses non-standard semantics for the read urb which makes the generic close function fail to kill it (the read urb is actually an interrupt urb and therefore bulk_in size is zero). Reported-by: Eric Shattow "Eprecocious" <lucent@gmail.com> Tested-by: Eric Shattow "Eprecocious" <lucent@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: gadget: amd5536udc.c: fix error pathRahul Ruikar2010-10-221-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In function udc_probe() call put_device() when device_register() fails. Signed-off-by: Rahul Ruikar <rahul.ruikar@gmail.com> Acked-by: Thomas Dahlmann <dahlmann.thomas@arcor.de> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: imx21-hcd - fix off by one resource size calculationAxel Lin2010-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Tested-by: Jon Povey <Jon.Povey@racelogic.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | usb: gadget: fix Kconfig warningFelipe Contreras2010-10-221-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | warning: (USB_MUSB_HDRC_HCD && USB_SUPPORT && USB_MUSB_HDRC && (USB_MUSB_HOST || USB_MUSB_OTG) && USB_GADGET_MUSB_HDRC || USB_MUSB_OTG && <choice> && USB && USB_GADGET && PM && EXPERIMENTAL) selects USB_OTG which has unmet direct dependencies (USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD) This doesn't seem to happen on 2.6.36-rc8, but still doesn't make sense to keep this duplicated config that is already defined in usb/core. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | usb: r8a66597-udc: Add processing when USB was removed.Yusuke Goda2010-10-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When USB was removed, this patch prepares for the next insertion. Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | mxc_udc: add workaround for ENGcm09152 for i.MX35Eric Bénard2010-10-221-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this patch gives the possibility to workaround bug ENGcm09152 on i.MX35 when the hardware workaround is also implemented on the board. It covers the workaround described on page 25 of the following Errata : http://cache.freescale.com/files/dsp/doc/errata/IMX35CE.pdf Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: ftdi_sio: add device ids for ScienceScopeGreg Kroah-Hartman2010-10-222-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the requested device ids to the ftdi_sio driver. Reported-by: Ewan Bingham <ewan@auc.co.uk> Cc: Kuba Ober <kuba@mareimbrium.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: musb: AM35x: Workaround for fifo read issueAjay Kumar Gupta2010-10-222-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AM35x supports only 32bit read operations so we need to have workaround for 8bit and 16bit read operations. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: musb: add musb support for AM35xAjay Kumar Gupta2010-10-224-2/+512
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AM35x has musb interface and uses CPPI4.1 DMA engine. Current patch supports only PIO mode. DMA support can be added later once basic CPPI4.1 DMA patch is accepted. Also added USB_MUSB_AM35X which is required to differentiate musb ips between OMAP3x and AM35x. This config would be used to for below purposes, - Select am35x.c instead of omap2430.c for compilation at drivers/usb/musb directory. Please note there are significant differneces in these two files as musb ip in quite different on AM35x. Please note that in multi omap configuration only omap2430.c file will get compiled and we would require to select only AM35x based board config to compile am35x.c - Select workaround codes applicable for AM35x musb issues. one such workaround is for bytewise read issue on AM35x. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | usb: Fix linker errors with CONFIG_PM=nSarah Sharp2010-10-223-12/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix these linker errors when CONFIG_PM=n: ERROR: "xhci_bus_resume" [drivers/usb/host/xhci-hcd.ko] undefined! ERROR: "xhci_bus_suspend" [drivers/usb/host/xhci-hcd.ko] undefined! Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: ohci-sh - use resource_size instead of defining its own resource_len macroAxel Lin2010-10-221-2/+1
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: isp1362-hcd - use resource_size instead of defining its own ↵Axel Lin2010-10-221-10/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | resource_len macro Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: isp116x-hcd - use resource_size instead of defining its own ↵Axel Lin2010-10-221-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | resource_len macro Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: xhci: Fix compile error when CONFIG_PM=nSarah Sharp2010-10-221-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix this error when CONFIG_PM is not enabled: drivers/usb/host/xhci.c:675: error: implicit declaration of function 'usb_root_hub_lost_power' Wrap xhci_suspend() and xhci_resume() into an ifdef CONFIG_PM, along with the functions that only they call -- xhci_save_registers() and xhci_restore_registers(). Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: accept some invalid ep0-maxpacket valuesAlan Stern2010-10-221-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A few devices (such as the RCA VR5220 voice recorder) are so non-compliant with the USB spec that they have invalid maxpacket sizes for endpoint 0. Nevertheless, as long as we can safely use them, we may as well do so. This patch (as1432) softens our acceptance criterion by allowing high-speed devices to have ep0-maxpacket sizes other than 64. A warning is printed in the system log when this happens, and the existing error message is clarified. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: James <bjlockie@lockie.ca> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: xHCI: PCI power management implementationAndiry Xu2010-10-223-2/+258
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements the PCI suspend/resume. Please refer to xHCI spec for doing the suspend/resume operation. For S3, CSS/SRS in USBCMD is used to save/restore the internal state. However, an error maybe occurs while restoring the internal state. In this case, it means that HC internal state is wrong and HC will be re-initialized. Signed-off-by: Libin Yang <libin.yang@amd.com> Signed-off-by: Dong Nguyen <dong.nguyen@amd.com> Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: xHCI: bus power management implementationAndiry Xu2010-10-224-0/+200
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements xHCI bus suspend/resume function hook. In the patch it goes through all the ports and suspend/resume the ports if needed. If any port is in remote wakeup, abort bus suspend as what ehci/ohci do. Signed-off-by: Libin Yang <libin.yang@amd.com> Signed-off-by: Crane Cai <crane.cai@amd.com> Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: xHCI: port remote wakeup implementationAndiry Xu2010-10-224-6/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit implements port remote wakeup. When a port is in U3 state and resume signaling is detected from a device, the port transitions to the Resume state, and the xHC generates a Port Status Change Event. For USB3 port, software write a '0' to the PLS field to complete the resume signaling. For USB2 port, the resume should be signaling for at least 20ms, irq handler set a timer for port remote wakeup, and then finishes process in hub_control GetPortStatus. Some codes are borrowed from EHCI code. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: xHCI: port power management implementationAndiry Xu2010-10-225-12/+248
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add software trigger USB device suspend resume function hook. Do port suspend & resume in terms of xHCI spec. Port Suspend: Stop all endpoints via Stop Endpoint Command with Suspend (SP) flag set. Place individual ports into suspend mode by writing '3' for Port Link State (PLS) field into PORTSC register. This can only be done when the port is in Enabled state. When writing, the Port Link State Write Strobe (LWS) bit shall be set to '1'. Allocate an xhci_command and stash it in xhci_virt_device to wait completion for the last Stop Endpoint Command. Use the Suspend bit in TRB to indicate the Stop Endpoint Command is for port suspend. Based on Sarah's suggestion. Port Resume: Write '0' in PLS field, device will transition to running state. Ring an endpoints' doorbell to restart it. Ref: USB device remote wake need another patch to implement. For details of how USB subsystem do power management, please see: Documentation/usb/power-management.txt Signed-off-by: Crane Cai <crane.cai@amd.com> Signed-off-by: Libin Yang <libin.yang@amd.com> Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | usb: Fix issue with USB 3.0 devices after system resumeSarah Sharp2010-10-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the system suspends and a host controller's power is lost, the USB core attempts to revive any USB devices that had the persist_enabled flag set. For non-SuperSpeed devices, it will disable the port, and then set the udev->reset_resume flag. This will cause the USB core to reset the device, verify the device descriptors to make sure it's the same device, and re-install any non-default configurations or alternate interface settings. However, we can't disable SuperSpeed root hub ports because that turns off SuperSpeed terminations, which will inhibit any devices connecting at USB 3.0 speeds. (Plus external hubs don't allow SuperSpeed ports to be disabled.) Because of this logic in hub_activate(): /* We can forget about a "removed" device when there's a * physical disconnect or the connect status changes. */ if (!(portstatus & USB_PORT_STAT_CONNECTION) || (portchange & USB_PORT_STAT_C_CONNECTION)) clear_bit(port1, hub->removed_bits); if (!udev || udev->state == USB_STATE_NOTATTACHED) { /* Tell khubd to disconnect the device or * check for a new connection */ if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) set_bit(port1, hub->change_bits); } else if (portstatus & USB_PORT_STAT_ENABLE) { /* The power session apparently survived the resume. * If there was an overcurrent or suspend change * (i.e., remote wakeup request), have khubd * take care of it. */ if (portchange) set_bit(port1, hub->change_bits); } else if (udev->persist_enabled) { udev->reset_resume = 1; set_bit(port1, hub->change_bits); } else { /* The power session is gone; tell khubd */ usb_set_device_state(udev, USB_STATE_NOTATTACHED); set_bit(port1, hub->change_bits); } a SuperSpeed device after a resume with a loss of power will never get the reset_resume flag set. Instead the core will assume the power session survived and that the device still has the same address, configuration, and alternate interface settings. The xHCI host controller will have no knowledge of the device (since all xhci_virt_devices were destroyed when power loss was discovered, and xhci_discover_or_reset_device() has not been called), and all URBs to the device will fail. If the device driver responds by resetting the device, everything will continue smoothly. However, if lsusb is used before the device driver resets the device (or there is no driver), then all lsusb descriptor fetches will fail. The quick fix is to pretend the port is disabled in hub_activate(), by clearing the local variable. But I'm not sure what other parts of the hub driver need to be changed because they have assumptions about when ports will be disabled. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: core: use kernel assigned address for devices under xHCIAndiry Xu2010-10-223-18/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xHCI driver uses hardware assigned device address. This may cause device address conflict in certain cases. Use kernel assigned address for devices under xHCI. Store the xHC assigned address locally in xHCI driver. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| * | USB: xHCI: change xhci_reset_device() to allocate new deviceAndiry Xu2010-10-223-7/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename xhci_reset_device() to xhci_discover_or_reset_device(). If xhci_discover_or_reset_device() is called to reset a device which does not exist or does not match the udev, it calls xhci_alloc_dev() to re-allocate the device. This would prevent the reset device failure, possibly due to the xHC restore error during S3/S4 resume. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: xHCI: Add pointer to udev in struct xhci_virt_deviceAndiry Xu2010-10-223-49/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a pointer to udev in struct xhci_virt_device. When allocate a new virt_device, make the pointer point to the corresponding udev. Modify xhci_check_args(), check if virt_dev->udev matches the target udev, to make sure command is issued to the right device. Signed-off-by: Andiry Xu <andiry.xu@amd.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | usb: r8a66597-hcd: Change mistake of the outsw functionNobuhiro Iwamatsu2010-10-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some functions changed by 1c98347e613bf17ea2f18c9766ce0ab77f65a96d. However, There was a change mistake of the function (outsw). Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> CC: Paul Mundt <lethal@linux-sh.org> Cc: stable <stable@kernel.org> [.35 & .36] Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: otg/ulpi: extend id's table.Igor Grinberg2010-10-221-5/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | Extend id's table to have ulpi phy names in it. Report if the known phy is found. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: otg/ulpi: improve ulpi phy detection.Igor Grinberg2010-10-221-3/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | Improve ulpi phy detection by utilizing the "scratch" register. Allow unknown ulpi phy work without the need to hard-code the id. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | USB: opticon: Whitespace fixes in opticon driverAlon Ziv2010-10-221-4/+4
| | | | | | | | | | | | | | | | | | Signed-off-by: Alon Ziv <alon-git@nolaviz.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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