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2010-03-02USB gadget: make Open Firmware device id constantNémeth Márton1-1/+1
The match_table field of the struct of_device_id is constant in <linux/of_platform.h> so it is worth to make ace_of_match also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB host: make Open Firmware device id constantNémeth Márton5-5/+5
The match_table field of the struct of_device_id is constant in <linux/of_platform.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB hub: make USB device id constantNémeth Márton1-1/+1
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB misc: make USB device id constantNémeth Márton22-22/+22
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB image: make USB device id constantNémeth Márton2-3/+3
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB serial: make USB device id constantNémeth Márton39-60/+60
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB class: make USB device id constantNémeth Márton5-5/+5
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB skeleton: make USB device id constantNémeth Márton1-1/+1
The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <[email protected]> Cc: Julia Lawall <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: musb: don't dereference NULL tusb_dma in dma_controller_destroy()Roel Kluin1-1/+1
Test whether tusb_dma is not NULL before dereferencing Signed-off-by: Roel Kluin <[email protected]> Cc: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: Move hcd free_dev call into usb_disconnect to fix oopsHerbert Xu3-4/+13
USB: Move hcd free_dev call into usb_disconnect I found a way to oops the kernel: 1. Open a USB device through devio. 2. Remove the hcd module in the host kernel. 3. Close the devio file descriptor. The problem is that closing the file descriptor does usb_release_dev as it is the last reference. usb_release_dev then tries to invoke the hcd free_dev function (or rather dereferencing the hcd driver struct). This causes an oops as the hcd driver has already been unloaded so the struct is gone. This patch tries to fix this by bringing the free_dev call earlier and into usb_disconnect. I have verified that repeating the above steps no longer crashes with this patch applied. Signed-off-by: Herbert Xu <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: fix crash in uhci_scan_schedulePete Zaitcev1-0/+1
When hardware is removed on a Stratus, the system may crash like this: ACPI: PCI interrupt for device 0000:7c:00.1 disabled Trying to free nonexistent resource <00000000a8000000-00000000afffffff> Trying to free nonexistent resource <00000000a4800000-00000000a480ffff> uhci_hcd 0000:7e:1d.0: remove, state 1 usb usb2: USB disconnect, address 1 usb 2-1: USB disconnect, address 2 Unable to handle kernel paging request at 0000000000100100 RIP: [<ffffffff88021950>] :uhci_hcd:uhci_scan_schedule+0xa2/0x89c #4 [ffff81011de17e50] uhci_scan_schedule at ffffffff88021918 #5 [ffff81011de17ed0] uhci_irq at ffffffff88023cb8 #6 [ffff81011de17f10] usb_hcd_irq at ffffffff801f1c1f #7 [ffff81011de17f20] handle_IRQ_event at ffffffff8001123b #8 [ffff81011de17f50] __do_IRQ at ffffffff800ba749 This occurs because an interrupt scans uhci->skelqh, which is being freed. We do the right thing: disable the interrupts in the device, and do not do any processing if the interrupt is shared with other source, but it's possible that another CPU gets delayed somewhere (e.g. loops) until we started freeing. The agreed-upon solution is to wait for interrupts to play out before proceeding. No other bareers are neceesary. A backport of this patch was tested on a 2.6.18 based kernel. Testing of 2.6.32-based kernels is under way, but it takes us forever (months) to turn this around. So I think it's a good patch and we should keep it. Tracked in RH bz#516851 Signed-Off-By: Pete Zaitcev <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: convert to the runtime PM frameworkAlan Stern11-784/+490
This patch (as1329) converts the USB stack over to the PM core's runtime PM framework. This involves numerous changes throughout usbcore, especially to hub.c and driver.c. Perhaps the most notable change is that CONFIG_USB_SUSPEND now depends on CONFIG_PM_RUNTIME instead of CONFIG_PM. Several fields in the usb_device and usb_interface structures are no longer needed. Some code which used to depend on CONFIG_USB_PM now depends on CONFIG_USB_SUSPEND (requiring some rearrangement of header files). The only visible change in behavior should be that following a system sleep (resume from RAM or resume from hibernation), autosuspended USB devices will be resumed just like everything else. They won't remain suspended. But if they aren't in use then they will naturally autosuspend again in a few seconds. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: rearrange functions in driver.cAlan Stern1-103/+103
This patch (as1328) reorders the functions in drivers/usb/core/driver.c so as to put all the routines dependent on CONFIG_PM in one place. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: change handling of negative autosuspend delaysAlan Stern2-5/+27
This patch (as1327) changes the way negative autosuspend delays prevent device from autosuspending. The current code checks for negative values explicitly in the autosuspend_check() routine. The updated code keeps things from getting that far by using usb_autoresume_device() to increment the usage counter when a negative delay is set, and by using usb_autosuspend_device() to decrement the usage counter when a non-negative delay is set. This complicates the set_autosuspend() attribute method code slightly, but it will reduce the overall power management overhead. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: implement usb_enable_autosuspendAlan Stern6-21/+82
This patch (as1326) adds usb_enable_autosuspend() and usb_disable_autosuspend() routines for use by drivers. If a driver knows that its device can handle suspends and resumes correctly, it can enable autosuspend all by itself. This is equivalent to the user writing "auto" to the device's power/level attribute. The implementation differs slightly from what it used to be. Now autosuspend is disabled simply by doing usb_autoresume_device() (to increment the usage counter) and enabled by doing usb_autosuspend_device() (to decrement the usage counter). The set_level() attribute method is updated to use the new routines, and the USB Power-Management documentation is updated. The patch adds a usb_enable_autosuspend() call to the hub driver's probe routine, allowing the special-case code for hubs in quirks.c to be removed. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: use the device lock for persist_enabledAlan Stern1-2/+3
This patch (as1325) changes the locking for the persist_enabled flag in struct usb_device. Now it is protected by the device lock, along with all its neighboring bit flags, instead of the PM lock (which is about to vanish anyway). Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: consolidate remote wakeup routinesAlan Stern3-11/+11
This patch (as1324) makes a small change to the code used for remote wakeup of root hubs. hcd_resume_work() now calls the hub driver's remote-wakeup routine instead of implementing its own version. The patch is complicated by the need to rename remote_wakeup() to usb_remote_wakeup(), make it non-static, and declare it in a header file. There's also the additional complication required to make everything work when CONFIG_PM isn't set; the do-nothing inline routine had to be moved into the header file. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: change locking for device-level autosuspendAlan Stern3-20/+30
This patch (as1323) changes the locking requirements for usb_autosuspend_device(), usb_autoresume_device(), and usb_try_autosuspend_device(). This isn't a very important change; mainly it's meant to make the locking more uniform. The most tricky part of the patch involves changes to usbdev_open(). To avoid an ABBA locking problem, it was necessary to reduce the region protected by usbfs_mutex. Since that mutex now protects only against simultaneous open and remove, this posed no difficulty -- its scope was larger than necessary. And it turns out that usbfs_mutex is no longer needed in usbdev_release() at all. The list of usbfs "ps" structures is now protected by the device lock instead of by usbfs_mutex. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: rearrange code in usb_probe_interfaceAlan Stern1-32/+31
This patch (as1322) reverses the two outcomes of an "if" statement in usb_probe_interface(), to avoid an unnecessary level of indentation. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: Use bInterfaceNumber in bandwidth allocations.Sarah Sharp1-2/+7
USB devices do not have to sort interfaces in their descriptors based on the interface number, and they may choose to skip interface numbers. The USB bandwidth allocation code for installing a new configuration assumes the for loop variable will match the interface number. Make it use the interface number (bInterfaceNumber) in the descriptor instead. Signed-off-by: Sarah Sharp <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: unusual_devs: Add support for multiple Option 3G sticksJan Dumon1-2/+86
Enable the SD-Card interface on multiple Option 3G sticks. The unusual_devs.h entry is necessary because the device descriptor is vendor-specific. That prevents usb-storage from binding to it as an interface driver. Signed-off-by: Jan Dumon <[email protected]> Signed-off-by: Phil Dibowitz <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02arm: defconfig: rx51: enable phonet and g_nokiaFelipe Balbi1-1/+10
trivial patch enabling g_nokia on rx51_defconfig. Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: gadget: introduce g_nokia gadget driverFelipe Balbi3-0/+271
g_nokia is the gadget driver implementing WMCDC Wireless Handset Control Model for the N900 device. Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: xhci: Fix compile issues with xhci_get_slot_state()Sarah Sharp2-2/+2
Randy Dunlap reported this error when compiling the xHCI driver: linux-next-20100104/drivers/usb/host/xhci.h:1214: sorry, unimplemented: inlining failed in call to 'xhci_get_slot_state': function body not available The xhci_get_slot_state() function belongs in xhci-dbg.c, since it involves debugging internal xHCI structures. However, it is only used in xhci-hcd.c. Some toolchains may have issues since the inlined function body is not in the xhci.h header file. Remove the inline keyword to avoid this. Reported-by: Randy Dunlap <[email protected]> Signed-off-by: Sarah Sharp <[email protected]> Acked-by: Randy Dunlap <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: c67x00: use resource_size().Thiago Farina1-4/+4
Signed-off-by: Thiago Farina <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: FHCI: Correct the size argument to kzallocJulia Lawall1-1/+1
urb_priv->tds has type struct td **, not struct td *, so the elements of the array should have pointer type, not structure type. Convert kzalloc to kcalloc as well. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @disable sizeof_type_expr@ type T; T **x; @@ x = <+...sizeof( - T + *x )...+> // </smpl> Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: cypress_m8: use put_unaligned_le32() where necessaryJohan Hovold1-2/+3
Cc: Lonnie Mendez <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: ch341: use get_unaligned_le16 in break_ctlJohan Hovold1-1/+2
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: serial: fix DMA buffers on stack for io_edgeport.cDan Carpenter1-17/+18
The original code was passing a stack variable as a dma buffer, so I made it an allocated variable. Instead of adding a bunch of kfree() calls, I changed all the error return paths to gotos. Also I noticed that the error checking wasn't correct because usb_get_descriptor() can return negative values. While I was at it, I made an unrelated white space change by moving the unicode_to_ascii() on to one line. Signed-off-by: Dan Carpenter <[email protected]> Cc: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: kobil_sct: clean up kobil_set_termiosJohan Hovold1-18/+4
Kill string that is allocated and generated using speed and parity settings but is never used (and never has been). Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: visor: fix DMA buffers on stackJohan Hovold1-8/+18
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: oti6858: fix DMA buffer on stackJohan Hovold1-3/+10
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: mos7840: fix DMA buffers on stack and endianess bugsJohan Hovold1-4/+18
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: mos7720: fix DMA buffers on stack and clean up send_mos_cmdJohan Hovold1-17/+17
Change data-argument type from (void *) to (u8 *) to prevent endianess problems. Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: kl5kusb105: fix DMA buffers on stackJohan Hovold1-18/+45
Cc: Oliver Neukum <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: keyspan_pda: fix DMA buffers on stackJohan Hovold1-12/+33
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: io_ti: fix DMA buffers on stackJohan Hovold1-18/+48
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: cypress_m8: fix endianess bugJohan Hovold1-2/+2
Cc: Lonnie Mendez <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: cypress_m8: fix DMA buffer on stackJohan Hovold1-14/+17
Cc: Lonnie Mendez <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: ch341: use le16_to_cpup to be explicit about endianessJohan Hovold1-1/+1
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: ch341: fix DMA buffer on stackJohan Hovold1-3/+11
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02USB: ch341: replace printk warnings with dev_errJohan Hovold1-4/+4
Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: host: ehci: adding regulator framework in ehci-omap.c driver.Ajay Kumar Gupta1-0/+36
OMAP3 has three HS USB ports so it can have three different regulator for each PHY connected to each port. Currently these regulators are assumed to be optional and driver doesn't fail but continue with the initialization if it doesn't get any regulators. Regulator supply names has to be mapped in board files as 'hsusbN' where 'N' is port number and can be {0, 1 ,2}. Signed-off-by: Ajay Kumar Gupta <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: host: ehci: fix missing kfree in remove path alsoAjay Kumar Gupta1-0/+1
Added missing kfree() in ehci_hcd_omap_remove(). Signed-off-by: Ajay Kumar Gupta <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: musb: Add 'extvbus' in musb_hdrc_platform_dataAjay Kumar Gupta3-0/+16
Some of the board might use external Vbus power supply on musb interface which would require to program ULPI_BUSCONTROL register. Adding 'extvbus' flag which can be set from such boards which will be checked at musb driver files before programming ULPI_BUSCONTROL. Signed-off-by: Ajay Kumar Gupta <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: musb: save dynfifo in musb structAjay Kumar Gupta2-1/+4
Save dynamic FIFO read only information for later uses during musb_save/restore_context functions. Signed-off-by: Ajay Kumar Gupta <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: musb: handle irqs in the order dictated by programming guideArnaud Mandy1-139/+116
MUSB's programming guide dictates how we should handle its irqs and in which order. Follow that. Signed-off-by: Arnaud Mandy <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: musb: clean up commit 'workaround Blackfin FIFO anomalies'Bryan Wu1-15/+13
The version applied had a few comments which are now done. Thanks to Sergei for pointing out. Signed-off-by: Bryan Wu <[email protected]> Signed-off-by: Cliff Cai <[email protected]> Signed-off-by: Mike Frysinger <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: musb: Fix cppi_channel_abort() function to handle Tx abort correctlySwaminathan S1-23/+10
This patch fixes the Tx abort/teardown logic. We now wait for the teardown completion interrupt and acknowledge the same by setting the tx_complete register to 0. This change is needed to ensure that abort processing works on DM365 platform. Without this change after completion of abort processing the system is overwhelmed with continuous stream of abort interrupts. This change has been tested on all CPPI3.x platforms (DM644x, DM646x, DM35x, DM36x). Signed-off-by: Swaminathan S <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-03-02usb: musb: workaround toggle bug when doing bulk transfer after isocSwaminathan S1-0/+24
This patch implements the work around for a Mentor controller related bug where it's observed a BULK Tx toggle error on the bus when a BULK IO gets scheduled on an endpoint that was earlier used for handling ISOC transaction and needed to start on 1 toggle. When such a situation arises even if the TXCSR toggle bits are programmed correctly by the musb driver the data gets transmitted with 0 toggle which leads to toggle error on the bus and the BULK transaction fails. In case of MSC write, the device gets reset by the Host. This Mentor bug is observed on almost all Mentor versions (1.3, 1.5, 1.8). Confirmed on DM644x, DM355, DM365, OMAPL13x platforms. Signed-off-by: Swaminathan S <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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