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path: root/drivers/usb/musb
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2012-01-26usb: musb: TXMAXP,TXCSR setting in Host modesupriya karanth
The TXMAXP and TXCSR registers were not set correctly for the BULK OUT endpoints causing issues in Full speed in Host mode. Change-Id: If5f3552235d8909adef4777f08d612df432d8709
2012-01-26usb:musb:be careful when using different fifo_modesFelipe Balbi
if we have more endpoints configured than enabled on fifo_mode, then we need to be careful on save/restore context operations, otherwise we will try to access uninitialized __iomem pointer. Change-Id: Iacca00fbb3b97bf6e25f7d7652dd9d53fb9adc16 Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-16Squashandroid-20111223Benn Pörscke
Change-Id: I2fcf46d1fc4b0cd4c61e5be3654c43b80db86015
2011-10-28u8500 : USB :New notification events for BatManrajaram
Added notification events for ACA cases so that battery manager can distinguish between Standard Host and ACA charger. ST-Ericsson Linux next: NA ST-Ericsson ID: 362951 ST-Ericsson FOSS-OUT ID: Trivial Signed-off-by: rajaram <rajaram.ragupathy@stericsson.com> Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Change-Id: I02a19bced97b408990d8effb785418bf182ac27b Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/34862 Tested-by: Rajaram REGUPATHY <ragupathy.rajaram@stericsson.com> Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2011-10-21ux500: usb: restore INDEX register in resume pathThirupathi Chippakurthy
Restoring the missing INDEX register value in ux500_restore_context(). without this Hub enumeration is inconsistent, if we do multiple connect/disconnect. ST-Ericsson ID: 364906 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Signed-off-by: Thirupathi <thirupathi.chippakurthy@stericsson.com> Change-Id: Idd16826372e11fffe45356014b3987de98c1cf87 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/34805 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: QATOOLS Reviewed-by: QABUILD Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-10-21usb: musb: restore INDEX register in resume pathThirupathi Chippakurthy
Restoring the missing INDEX register value in musb_restore_context(). Without this suspend resume functionality is broken with offmode enabled. ST-Ericsson ID: AP 369118 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Signed-off-by: Thirupathi <thirupathi.chippakurthy@stericsson.com> Acked-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Change-Id: I0ad6758c0a92eb88bce8f75dd86b7029c7d4e7e1 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/34787 Reviewed-by: QABUILD Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-10-04ux500:USB: Handling the null pointer situationSakethram Bommisetti
Connect and boot can cause a NULL pointer access if link status interrupt comes before we enable the MUSB platform initialization happens. ST-Ericsson Linux next: NA ST-Ericsson ID: 365151 ST-Ericsson FOSS-OUT ID: NA Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Change-Id: I91aaa269913a7fdf5b4f59927dd563cf8c456e4f Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32825 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-10-02ux500:USB: Fix for CPU Idle from USBSakethram Bommisetti
USB context is stored and restored at each time when the usb cable is pluged in. ST-Ericsson Linux next: NA ST-Ericsson ID: 363987 ST-Ericsson FOSS-OUT ID: NA Change-Id: I5fa7b32dd4f67dcc81f2418e872ed5107f8624c0 Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32785 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-09-28USB:ux500:Changed msg level from warning to debugmaheswarudu
In Worker thread and DMA channel configure/abort functions, the warning message is actually debug message. So changed debug level from warning to debug message. ST-Ericsson ID:AP 363893 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Signed-off-by: maheswarudu <v.maheswarudu@stericsson.com> Change-Id: Id3a1e520230d3108e31b932cd9c07ab15e1a8d00 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32263 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
2011-09-27musb: host: Wait for TXPKTRDY to clear in hostThirupathi Chippakurthy
MUSB_TXCSR_TXPKTRDY will not get cleared if the data is not on the bus. So, need to wait for it to clear in the DMA completion callback.As per musb datasheet, generally mode 1 needs to be used for data length greater than or equal to max packet size. ST-Ericsson ID:AP 363893 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Change-Id: I934295798a5fbccf60c6f4004595b625a98098ed Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Signed-off-by: Praveena <praveen.nadahally@stericsson.com> Signed-off-by: rajaram <rajaram.ragupathy@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32012 Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2011-09-27ux500:USB:Handing the state machine for Host and Device modesSakethram Bommisetti
Setting the default state OTG_STATE_B_IDLE when there is removal of USB cable(Either Host or Device). ST-Ericsson ID: 363539 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Change-Id: Ia066f9a1cb3433bc54bc934f9b0e9eeaf222f89b Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31860 Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com> Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-09-27Revert "ux500:USB:Disable DMA for device mode"Thirupathi Chippakurthy
This reverts commit cc851c0c7146330d1fe1b44f10ff8d88e2c09bb7. Change-Id: I437b587c6566170ea3f65cad6f2f72531b5fe33b Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31992 Tested-by: Thirupathi CHIPPAKURTHY <thirupathi.chippakurthy@stericsson.com> Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2011-09-27musb:host: Fix for musb host receive in PIO modeThirupathi Chippakurthy
restore MUSB_RXCSR code is misplaced,Handling properly. ST-Ericsson ID: AP 363893 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Change-Id: I3f0499487a1d5e4837ade52e6fb8f0f573cce217 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31989 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2011-09-21musb:host:Notifier call registered for host enableThirupathi Chippakurthy
Registering notifier call handled, to enable the host funtionality. ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I4f415ac61153372c81f6fc4d46ffb1e4e63d0d2c Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31572 Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
2011-09-20musb:host: Fix for musb host receive in PIO modeThirupathi Chippakurthy
restore MUSB_RXCSR to original value when dma is not used. ST-Ericsson ID: ER 321774 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Change-Id: Ia375a5a8da423bafae107248a4ea25158bce4793 Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Signed-off-by: Avinash Kumar <avinash.kumar@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31466 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-09-19musb : host : Enable Host DMA supportThirupathi Chippakurthy
This enables host functionality with DMA. ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Change-Id: I9f3d65f3cf337f557825725f99d78f4470a651f9 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31260 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-09-19usb:Migrate the patches to kernel 3.0Avinash Kumar
Following patches for usb driver are manually merged to kernel 3.0 d11e52a ux500: usb: add usb device mode support on u5500 1fecc55 ux500: usb: enabling adb and ACM functionality in u5500_defconfig 2847bf4 ux500: usb: error handling in musb for u5500 37f22da ux500: usb: U5500 v2 update e1b079d ux500: usb: Fix for enumeration when ON with cable 181701a ux500: usb: Fix for V2 emmc2 boot USB device issue 3a60721 mach-ux500: Handle the LinkStatus register. 086a83e usb: ux500: usb gpio enable/disable in pair ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Change-Id: Id918b9a55d3b85faf7c003547748f17086af3ec7 Signed-off-by: Avinash Kumar <avinash.kumar@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30860
2011-09-19usb:musb:Enable DMA mode1 RX for without short pktThirupathi Chippakurthy
This patch enables the DMA mode1 RX support This feature is enabled based on the short_not_ok flag passed from gadget drivers. This will result in a thruput performance gain of around 40% for USB mass-storage/mtp use cases. ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Signed-off-by: Anand Gadiyar <gadiyar <at> ti.com> Signed-off-by: Moiz Sonasath <m-sonasath <at> ti.com> Signed-off-by: Vikram Pandita <vikram.pandita <at> ti.com> Tested-by: Vikram Pandita <vikram.pandita <at> ti.com> Change-Id: I17f58a018c1b5c0a4d89172fd2978a4e5da337f0 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30833 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-09-19usb:musb:ux500:set dma config for both src and dstThirupathi Chippakurthy
The dma driver requires both src and dst to be set. This fix is needed in order to run gadget mass storage. Patch is verified on snowball. ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I28001a4f5d00fff71d8d39b3cb7144affedb2766 Signed-off-by:<thirupathi.chippakurthy@stericsson.com> Signed-off-by:<Per Forlin <per.forlin@...> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30772 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
2011-09-19musb: host: linux Kernel3.0 host dma disabledThirupathi Chippakurthy
The dma driver disabled in Host Mode. Only enabled in Device mode. ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Signed-off-by:<thirupathi.chippakurthy@stericsson.com> Change-Id: I5d26d2990d1c01a2ce461eb87f2e8d4518f0e40a Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30823 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
2011-09-19ux500:USB:Disable DMA for device modeSakethram Bommisetti
Checking the compatibility and disabling the dma. ST-Ericsson ID: NA ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: NA Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Change-Id: Ic52084e5439932ea688d687c4a61cf76fd861e79 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30467
2011-09-19musb: host: unmap the buffer for PIO in EP0Thirupathi Chippakurthy
The USB stack maps the buffer for DMA if the controller supports DMA.The buffer needs to be unmapped before CPU can perform PIO data transfers. ST-Ericsson ID: 353110 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I7811591f4f82f06af036bbde28cfa6f6de40cf8d Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30144 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
2011-09-19musb:host: Linux Kernel3.0 host IntegrationThirupathi Chippakurthy
The handling of device connection in host mode. ST-Ericsson ID: 352334 ST-Ericsson Linux next: NA ST-Ericsson FOSS-OUT ID: Trivial Change-Id: Icdf576355fd5743bd48af0c8e33ae34526fc53a4 Signed-off-by: <thirupathi.chippakurthy@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30020 Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com>
2011-09-19USB:Updating the documentationSakethram Bommisetti
Documentation from usb. Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com> Conflicts: Documentation/DocBook/Makefile
2011-09-19Generic:USB:Pairing suspend/resume correctly for musbSakethram Bommisetti
Changing the resume_noirq call to resume call so that suspend/resume is paired and we will have a stable USB power save. ST-Ericsson ID: ER 280150 Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
2011-09-19USB: Double Bufferingsidhartk
Merging patch from gerrit id 6301 The patches enables hardware double buffering support for endpoint to enable Massstorage improve performance. Signed-off-by: sidhartk <sidhartha.kalra@stericsson.com> Change-Id: Ic5d1a4e5a17898b0eb90947a1bc3bb8f2d26f79c Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/8759 Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
2011-09-19Merge linux-linaro-3.0-2011.07-1-android-1 into..Ulf Hansson
..linux-linaro-3.0-2011.07-1_glk3.0 Conflicts: arch/arm/common/Makefile drivers/misc/Kconfig drivers/misc/Makefile kernel/printk.c Change-Id: I126f34edb1879981909072beefb2738cad26f951
2011-09-19Lee's chunk to make the kernel compilePhilippe Langlais
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2011-09-19musb: Update for 3.0Robert Marklund
Signed-off-by: Robert Marklund <robert.marklund@stericsson.com>
2011-09-19Workaround for hardware problem in host mode for the MUSB chipset. Add ↵Hans Petter Selasky
missed TXPKTRDY check. FIFOFLUSH is broken when a real packet is in the FIFO. This hardware feature only works when the FIFO is empty. The workaround described requires limiting the maximum number of USB devices to 126, 128 - 2. Signed-off-by: Hans Petter Selasky <hans.petter.selasky@stericsson.com> Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com>
2011-09-19usb: musb: ux500: add ux500 specific code for gadget sideMian Yousaf Kaukab
Although U8500 and U5500 platforms use paltform dma, Inventra dma specific code can work for them for the most part. Only difference is for the Rx path where this patch is making use of request->short_not_ok to select dma mode. usb: musb: ux500: add dma name for ux500 usb: musb: ux500: add dma glue layer for ux500 DMA is mainly intended for mass storage class. Unaligned sizes and buffers are not supported. usb: musb: ux500: add configuration and build options for ux500 dma usb: musb: clear AUTOSET while clearing DMAENAB On the completion of tx dma, dma is disabled by clearing MUSB_TXCSR_DMAENAB in TXCSR. If MUSB_TXCSR_AUTOSET was set in txstate() it will remain set although it is not needed in PIO mode. Clear it as soon as it is not needed. usb: musb: ux500: copy dma mask from platform device to musb device musb code checks dma mask before calling dma hooks. usb: musb: do not release dma channel on channel_program failure Musb hcd releases dma channel (hw_ep->tx_channel / hw_ep->rx_channel ) if ->channel_program() fails. A null hw_ep->tx_channel is then used to continue the transfer in pio mode. Next call to musb_ep_program() will try to allocate the dma channel again. This patch allows the transfer to continue in pio mode if ->channel_program() fails without releasing the dma channel. usb: musb: restore rxcsr on channel_program failure Rxcsr is configured for dma transfer before calling ->channel_program(). Restore rxcsr if ->channel_program() fails. usb: musb: ux500: enable host side dma support Host side dma support for ux500 is enabled by piggybacking on Inventra dma support. Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
2011-07-25musb: Avoid musb_gadget_pullup "Unhandled fault" oops on omap4John Stultz
I've recently run across an "Unhandled fault: imprecise external abort" oops that is caused when a driver called usb_gadget_connect() when there was no cable plugged into the musb gadget port. You can see the oops message here: https://launchpadlibrarian.net/75635123/minicom.txt Doing some digging, it seemed the problem was triggered when reading from the musb registers in musb_pullup() when the device controller is powered down. Looking at other examples of where the registers were accessed, I noticed they were always enclosed by pm_runtime_get/put calls. So I added such calls to the musb_gadget_pullup() function and it seemed to resolve the problem. Now, full disclosure: this was triggered with the out-of-tree Android adb gadget driver. However, I suspect the same behavior could be triggered using the composite gadget driver as well, so I think this is a generic issue. However, if I'm wrong, let me know and I'll try to make sure the fix is done in the right place. If this is the right fix, it probably should be queued for 3.1 and 3.0-stable. Comments and feedback would be greatly appreciated! Reported-by: Zach Pfeffer <zach.pfeffer@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-06-09usb: musb: gadget: clear TXPKTRDY flag when set FLUSHFIFOYauheni Kaliuta
Fixes mis-use of MUSB's hardware feature where it won't flush FIFOs when TXPKTRDY flag was set before and we are flushing setting both FLUSHFIFO and TXPKTRDY. In other words, we need to ensure that when we try to flush FIFOs, we don't accidentaly set TXPKTRDY bit too due to a read-back of the register. The MUSB Programming Guide says "May be set simultaneously with TxPktRdy to abort the packet that is currently being loaded into the FIFO". This is a situation where TXPKTRDY hasn't been set yet, but some data already loaded into the fifo. It looks, that if TXPKTRDY has been set before, and there is no loading in progress, but we set FLUSHFIFO with the TXPKTRDY, controller tries to use the same logic to abort loading and as the result just does nothing (because there is no packet been loaded currently) Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@nokia.com> [ balbi@ti.com : fixed one whitespace git complained about improved the commit log slightly ] Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-06-09usb: musb: host: compare status for negative error valuesMárton Németh
Variable d is a struct usb_iso_packet_descriptor. The status filed is usually negative when an error happens. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-06-06musb: fix prefetch build failureMike Frysinger
After the prefetch/list.h restructure, drivers need to explicitly include linux/prefetch.h in order to use the prefetch() function. Otherwise, the current driver fails to build: drivers/usb/musb/musb_core.c: In function 'musb_write_fifo': drivers/usb/musb/musb_core.c:219: error: implicit declaration of function 'prefetch' make[3]: *** [drivers/usb/musb/musb_core.o] Error 1 Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18usb: musb: ux500: add configuration and build options for ux500 dmaMian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-18usb: musb: ux500: add dma glue layer for ux500Mian Yousaf Kaukab
Unaligned sizes and buffers are not supported and they will be filtered out by is_compatible(). Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-18usb: musb: ux500: add dma name for ux500Mian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-18usb: musb: ux500: add ux500 specific code for gadget sideMian Yousaf Kaukab
Although U8500 and U5500 platforms use paltform dma, Inventra dma specific code can work for them for the most part. Only difference is for the Rx path where this patch is making use of request->short_not_ok to select dma mode. Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-18usb: musb: fix compile errorFelipe Balbi
commit 35a83365da6aa10095c6138cc428c15853409c32 (usb: musb: drop unneeded musb_debug trickery) introduced a compile error for blackfin and tusb6010 glue layers. Fix it. Reported-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-13usb: musb: Calling VBUS pulsing API when SRP is initiated.Hema HK
Call VBUS pulsing API when there is SRP initiation from user space. Signed-off-by: Hema HK <hemahk@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-13usb: musb: host: remove duplicate check in musb_ep_program()Sergei Shtylyov
musb_ep_program() contains obviously duplicate check for 'dma_channel' in its IN/receive path -- removing it allows to save one level of indentation. While at it, improve the comment style... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-13usb: musb: export musb_interrupt symbolFelipe Balbi
currently that's used by another module (am35x) which, granted, it shouldn't be using that, but in order to avoid compile errors, let's export that symbol temporarily until re-factoring work is done on that driver. Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-13usb: musb: allow musb and glue layers to be modulesFelipe Balbi
This in part reverts commit 7a180e70cfc56e131bfe4796773df2acfc7d4180. (usb: musb: temporarily make it bool) and while at that we also allow glue layers to be compiled as modules. There are still some other changes needed until we can have a fully functional build with this setup, but we're getting there. Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-13usb: musb: drop unneeded musb_debug trickeryFelipe Balbi
We have a generic way of enabling/disabling different debug messages on a driver called DYNAMIC_PRINTK. Anyone interested in enabling just part of the debug messages, please read the documentation under: Documentation/dynamic-debug-howto.txt for information on how to use that great infrastructure. Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-10Merge branch 2.6.39-rc7 into usb-linusGreg Kroah-Hartman
This was needed to resolve a conflict in: drivers/usb/host/isp1760-hcd.c Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-06usb: fix building musb driversAnatolij Gustschin
Commit 3dacdf11 "usb: factor out state_string() on otg drivers" broke building musb drivers since there is already another otg_state_string() function in musb drivers, but with different prototype. Fix musb drivers to use common otg_state_string(), too. Also provide a nop for otg_state_string() if CONFIG_USB_OTG_UTILS is not defined. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-02usb: musb: gadget: Fix out-of-sync runtime pm callsJarkko Nikula
If cable is not connected to peripheral only board when initializing the gadget driver, then runtime pm calls are out-of-sync and the musb cannot idle with omap2430.c. This was noted on Nokia N900 where musb prevented the CPU to be able to enter deeper retention idle state. This was working in 2.6.38 before runtime pm conversions but there musb smart standby/idle modes were configured statically where they are now updated runtime depending on use and cable status. Reason for out-of-sync is that runtime pm is activated in function musb_gadget.c: usb_gadget_probe_driver but suspended only in OTG mode if cable is not connected when initializing. In peripheral only mode this leads to out-of-sync runtime pm since runtime pm remain active and is activated another time in omap2430.c: musb_otg_notifications for VBUS Connect event and thus cannot suspend for VBUS Disconnect event since the use count remains active. Fix this by moving cable status check and pm_runtime_put call in usb_gadget_probe_driver out of is_otg_enabled block. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-05-02usb: musb: omap2430: Fix retention idle on musb peripheral only boardsJarkko Nikula
Recent runtime pm and hwmod conversions for 2.6.39 broke the musb peripheral mode OMAP retention idle on boards where the board mode in struct musb_hdrc_platform_data is set to MUSB_PERIPHERAL. These conversions changed the way how the OTG_SYSCONFIG register is configured and used in runtime. Before 2.6.39 smart standby/idle modes were activated statically in OTG_SYSCONFIG. Those modes allow that the musb is able to idle when peripheral device is not connected to host. In 2.6.39 the OTG_SYSCONFIG is updated runtime depending on VBUS status. No standby/idle modes are used when device is connected and force standby/idle when disconnected. Unfortunately VBUS disconnect event that handles the disconnect case lets the peripheral musb to idle only when board mode is MUSB_OTG. Fix this by checking the peripheral mode also. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-04-13usb: musb: omap2430: fix build failureJohan Hovold
Fix build failure introduced by commit 7acc6197b76edd0b932a7cbcc6cfad0a8a87f026 (usb: musb: Idle path retention and offmode support for OMAP3) when building without gadget support. CC drivers/usb/musb/omap2430.o drivers/usb/musb/omap2430.c: In function ‘musb_otg_notifications’: drivers/usb/musb/omap2430.c:262: error: ‘struct musb’ has no member named ‘gadget_driver’ Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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