| Commit message (Collapse) | Author | Age |
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Add memory-flags parameter to usb_serial_generic_write_start which is
called from write, resume and completion handler, all with different
allocation requirements.
Note that by using the memory flag to determine when called from the
completion handler, everything will work as before even if the
completion handler is run with interrupts enabled (as suggested).
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clean up some comments, drop excessive comments and fix-up style.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The DECLARE_BITMAP macro should be used for declaring this bitmap.
This commit converts the busmap from a struct to a simple (static)
bitmap, using the DECLARE_BITMAP macro from linux/types.h.
Please review, as I'm new to kernel development, I don't know if this
has any hidden side effects!
Suggested by joe@perches.com
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, Samsung is using 'EXYNOS' as the name of Samsung SoCs.
Thus, ehci-exynos is preferred than ehci-s5p.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The non-DT for EXYNOS SoCs is not supported from v3.11.
Thus, there is no need to support non-DT for Exynos EHCI driver.
The 'include/linux/platform_data/usb-ehci-s5p.h' file has been
used for non-DT support. Thus, the 'usb-ehci-s5p.h' file can
be removed.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch significantly changes the scheduling code in ehci-hcd.
Instead of calculating the current bandwidth utilization by trudging
through the schedule and adding up the times used by the existing
transfers, we will now maintain a table holding the time used for each
of 64 microframes. This will drastically speed up the bandwidth
computations.
In addition, it eliminates a theoretical bug. An isochronous endpoint
may have bandwidth reserved even at times when it has no transfers
listed in the schedule. The table will keep track of the reserved
bandwidth, whereas adding up entries in the schedule would miss it.
As a corollary, we can keep bandwidth reserved for endpoints even
when they aren't in active use. Eventually the bandwidth will be
reserved when a new alternate setting is installed; for now the
endpoint's reservation takes place when its first URB is submitted.
A drawback of this approach is that transfers with an interval larger
than 64 microframes will have to be charged for bandwidth as though
the interval was 64. In practice this shouldn't matter much;
transfers with longer intervals tend to be rather short anyway (things
like hubs or HID devices).
Another minor drawback is that we will keep track of two different
period and phase values: the actual ones and the ones used for
bandwidth allocation (which are limited to 64). This adds only a
small amount of overhead: 3 bytes for each endpoint.
The patch also adds a new debugfs file named "bandwidth" to display
the information stored in the new table.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch begins the process of unifying the scheduling parameters
that ehci-hcd uses for interrupt and isochronous transfers. It
creates an ehci_per_sched structure, which will be stored in both
ehci_qh and ehci_iso_stream structures, and will contain the common
scheduling information needed for both.
Initially we merely create the new structure and move some existing
fields into it. Later patches will add more fields and utilize these
structures in improved scheduling algorithms.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ehci-hcd is inconsistent in the sentinel values it uses to indicate
that no frame number has been assigned for a periodic transfer. Some
places it uses NO_FRAME (defined as 65535), other places it uses -1,
and elsewhere it uses 9999.
This patch defines a value for NO_FRAME which can fit in a 16-bit
signed integer, and changes the code to use it everywhere.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ehci-hcd uses a value of 0 in an endpoint's toggle flag to indicate
that the endpoint has been reset (and therefore the Data Toggle bit
needs to be cleared in the endpoint's QH overlay region).
The toggle flag should be set to 0 only when ehci_endpoint_reset()
succeeds. This patch moves the usb_settoggle() call into the
appropriate branch of the "if" statement.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The scheduling code in ehci-hcd contains an error. For full-speed
isochronous-OUT transfers, the EHCI spec forbids scheduling
Start-Split transactions in H-microframe 7, but the driver allows it
anyway. This patch adds a check to prevent it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Although the bandwidth statistics maintained by ehci-hcd show up only
in the /sys/kernel/debug/usb/devices file, they ought to be calculated
correctly. The calculation for full-speed isochronous endpoints is
wrong; it mistakenly yields bytes per microframe instead of bytes per
frame. The "interval" value, which is in frames, should not be
converted to microframes.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The check_intr_schedule() routine in ehci-hcd looks at the wrong
microframes when checking to see if a full-speed or low-speed
interrupt endpoint will fit in the periodic schedule. If the
Start-Split transaction is scheduled for microframe N then the
Complete-Split transactions get scheduled for microframes N+2, N+3, and
N+4. However the code considers N+1, N+2, and N+3 instead.
This patch fixes the limits on the "for" loop and also improves the
use of whitespace.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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usb_wait_anchor_empty_timeout() should wait till the completion handler
has run. Both the zd1211rw driver and the uas driver (in its task mgmt) depend
on the completion handler having completed when usb_wait_anchor_empty_timeout()
returns, as they read state set by the completion handler after an
usb_wait_anchor_empty_timeout() call.
But __usb_hcd_giveback_urb() calls usb_unanchor_urb before calling the
completion handler. This is necessary as the completion handler may
re-submit and re-anchor the urb. But this introduces a race where the state
these drivers want to read has not been set yet by the completion handler
(this race is easily triggered with the uas task mgmt code).
I've considered adding an anchor_count to struct urb, which would be
incremented on anchor and decremented on unanchor, and then only actually
do the anchor / unanchor on 0 -> 1 and 1 -> 0 transtions, combined with
moving the unanchor call in hcd_giveback_urb to after calling the completion
handler. But this will only work if urb's are only re-anchored to the same
anchor as they were anchored to before the completion handler ran.
And at least one driver re-anchors to another anchor from the completion
handler (rtlwifi).
So I have come up with this patch instead, which adds the ability to
suspend wakeups of usb_wait_anchor_empty_timeout() waiters to the usb_anchor
functionality, and uses this in __usb_hcd_giveback_urb() to delay wake-ups
until the completion handler has run.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When devm_usb_get_phy() fails, usb_put_hcd() should be called
to prevent memory leak.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Allows MSM EHCI controller to be specified via device tree.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use struct usb_hcd::phy to hold USB PHY instance.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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These aren't necessary after switch and if blocks.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixing the below dump:
root@freescale ~$ modprobe g_serial
g_serial gadget: Gadget Serial v2.4
g_serial gadget: g_serial ready
BUG: sleeping function called from invalid context at /home/b29397/work/projects/upstream/usb/usb/drivers/base/power/runtime.c:952
in_atomic(): 1, irqs_disabled(): 128, pid: 805, name: modprobe
2 locks held by modprobe/805:
#0: (udc_lock){+.+.+.}, at: [<7f000a74>] usb_gadget_probe_driver+0x44/0xb4 [udc_core]
#1: (&(&ci->lock)->rlock){......}, at: [<7f033488>] ci_udc_start+0x94/0x110 [ci_hdrc]
irq event stamp: 3878
hardirqs last enabled at (3877): [<806b6720>] _raw_spin_unlock_irqrestore+0x40/0x6c
hardirqs last disabled at (3878): [<806b6474>] _raw_spin_lock_irqsave+0x2c/0xa8
softirqs last enabled at (3872): [<8002ec0c>] __do_softirq+0x1c8/0x2e8
softirqs last disabled at (3857): [<8002f180>] irq_exit+0xbc/0x110
CPU: 0 PID: 805 Comm: modprobe Not tainted 3.11.0-next-20130910+ #85
[<80016b94>] (unwind_backtrace+0x0/0xf8) from [<80012e0c>] (show_stack+0x20/0x24)
[<80012e0c>] (show_stack+0x20/0x24) from [<806af554>] (dump_stack+0x9c/0xc4)
[<806af554>] (dump_stack+0x9c/0xc4) from [<8005940c>] (__might_sleep+0xf4/0x134)
[<8005940c>] (__might_sleep+0xf4/0x134) from [<803a04a4>] (__pm_runtime_resume+0x94/0xa0)
[<803a04a4>] (__pm_runtime_resume+0x94/0xa0) from [<7f0334a4>] (ci_udc_start+0xb0/0x110 [ci_hdrc])
[<7f0334a4>] (ci_udc_start+0xb0/0x110 [ci_hdrc]) from [<7f0009b4>] (udc_bind_to_driver+0x5c/0xd8 [udc_core])
[<7f0009b4>] (udc_bind_to_driver+0x5c/0xd8 [udc_core]) from [<7f000ab0>] (usb_gadget_probe_driver+0x80/0xb4 [udc_core])
[<7f000ab0>] (usb_gadget_probe_driver+0x80/0xb4 [udc_core]) from [<7f008618>] (usb_composite_probe+0xac/0xd8 [libcomposite])
[<7f008618>] (usb_composite_probe+0xac/0xd8 [libcomposite]) from [<7f04b168>] (init+0x8c/0xb4 [g_serial])
[<7f04b168>] (init+0x8c/0xb4 [g_serial]) from [<800088e8>] (do_one_initcall+0x108/0x16c)
[<800088e8>] (do_one_initcall+0x108/0x16c) from [<8008e518>] (load_module+0x1b00/0x20a4)
[<8008e518>] (load_module+0x1b00/0x20a4) from [<8008eba8>] (SyS_init_module+0xec/0x100)
[<8008eba8>] (SyS_init_module+0xec/0x100) from [<8000ec40>] (ret_fast_syscall+0x0/0x48)
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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After configuration, the host also possible sends bus reset
at any time, at such situation, it will trigger below spinlock
recursion dump. This commit unlocks the spinlock before calling
gadget's disconnect.
BUG: spinlock recursion on CPU#0, swapper/0/0
lock: 0xbf128014, .magic: dead4ead, .owner: swapper/0/0, .owner_cpu: 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-next-20130910+ #106
[<80014e20>] (unwind_backtrace+0x0/0xec) from [<80011a6c>] (show_stack+0x10/0x14)
[<80011a6c>] (show_stack+0x10/0x14) from [<805c143c>] (dump_stack+0x94/0xbc)
[<805c143c>] (dump_stack+0x94/0xbc) from [<80282cf8>] (do_raw_spin_lock+0x16c/0x18c)
[<80282cf8>] (do_raw_spin_lock+0x16c/0x18c) from [<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c)
[<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c) from [<803cff88>] (ep_disable+0x24/0x110)
[<803cff88>] (ep_disable+0x24/0x110) from [<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial])
[<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial]) from [<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm])
[<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm]) from [<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite])
[<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite]) from [<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite])
[<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite]) from [<803d1024>] (udc_irq+0x770/0xce4)
[<803d1024>] (udc_irq+0x770/0xce4) from [<803cdcc0>] (ci_irq+0x98/0x164)
[<803cdcc0>] (ci_irq+0x98/0x164) from [<8007edfc>] (handle_irq_event_percpu+0x50/0x17c)
[<8007edfc>] (handle_irq_event_percpu+0x50/0x17c) from [<8007ef64>] (handle_irq_event+0x3c/0x5c)
[<8007ef64>] (handle_irq_event+0x3c/0x5c) from [<80081e98>] (handle_fasteoi_irq+0x98/0x168)
[<80081e98>] (handle_fasteoi_irq+0x98/0x168) from [<8007e598>] (generic_handle_irq+0x28/0x3c)
[<8007e598>] (generic_handle_irq+0x28/0x3c) from [<8000edf4>] (handle_IRQ+0x4c/0xb4)
[<8000edf4>] (handle_IRQ+0x4c/0xb4) from [<800085bc>] (gic_handle_irq+0x28/0x5c)
[<800085bc>] (gic_handle_irq+0x28/0x5c) from [<800125c0>] (__irq_svc+0x40/0x54)
Exception stack(0x8083bf68 to 0x8083bfb0)
bf60: 81533b80 00000000 00096234 8001d760 8088e12c 00000000
bf80: 8083a000 8083a000 8084290c 805cb414 808428ac 8083a000 00000001 8083bfb0
bfa0: 8000f138 8000f13c 60000013 ffffffff
[<800125c0>] (__irq_svc+0x40/0x54) from [<8000f13c>] (arch_cpu_idle+0x30/0x3c)
[<8000f13c>] (arch_cpu_idle+0x30/0x3c) from [<8005eb94>] (cpu_startup_entry+0xf4/0x148)
[<8005eb94>] (cpu_startup_entry+0xf4/0x148) from [<807f1a2c>] (start_kernel+0x2c4/0x318)
BUG: spinlock lockup suspected on CPU#0, swapper/0/0
lock: 0xbf128014, .magic: dead4ead, .owner: swapper/0/0, .owner_cpu: 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-next-20130910+ #106
[<80014e20>] (unwind_backtrace+0x0/0xec) from [<80011a6c>] (show_stack+0x10/0x14)
[<80011a6c>] (show_stack+0x10/0x14) from [<805c143c>] (dump_stack+0x94/0xbc)
[<805c143c>] (dump_stack+0x94/0xbc) from [<80282c94>] (do_raw_spin_lock+0x108/0x18c)
[<80282c94>] (do_raw_spin_lock+0x108/0x18c) from [<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c)
[<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c) from [<803cff88>] (ep_disable+0x24/0x110)
[<803cff88>] (ep_disable+0x24/0x110) from [<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial])
[<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial]) from [<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm])
[<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm]) from [<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite])
[<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite]) from [<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite])
[<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite]) from [<803d1024>] (udc_irq+0x770/0xce4)
[<803d1024>] (udc_irq+0x770/0xce4) from [<803cdcc0>] (ci_irq+0x98/0x164)
[<803cdcc0>] (ci_irq+0x98/0x164) from [<8007edfc>] (handle_irq_event_percpu+0x50/0x17c)
[<8007edfc>] (handle_irq_event_percpu+0x50/0x17c) from [<8007ef64>] (handle_irq_event+0x3c/0x5c)
[<8007ef64>] (handle_irq_event+0x3c/0x5c) from [<80081e98>] (handle_fasteoi_irq+0x98/0x168)
[<80081e98>] (handle_fasteoi_irq+0x98/0x168) from [<8007e598>] (generic_handle_irq+0x28/0x3c)
[<8007e598>] (generic_handle_irq+0x28/0x3c) from [<8000edf4>] (handle_IRQ+0x4c/0xb4)
[<8000edf4>] (handle_IRQ+0x4c/0xb4) from [<800085bc>] (gic_handle_irq+0x28/0x5c)
[<800085bc>] (gic_handle_irq+0x28/0x5c) from [<800125c0>] (__irq_svc+0x40/0x54)
Exception stack(0x8083bf68 to 0x8083bfb0)
bf60: 81533b80 00000000 00096234 8001d760 8088e12c 00000000
bf80: 8083a000 8083a000 8084290c 805cb414 808428ac 8083a000 00000001 8083bfb0
bfa0: 8000f138 8000f13c 60000013 ffffffff
[<800125c0>] (__irq_svc+0x40/0x54) from [<8000f13c>] (arch_cpu_idle+0x30/0x3c)
[<8000f13c>] (arch_cpu_idle+0x30/0x3c) from [<8005eb94>] (cpu_startup_entry+0xf4/0x148)
[<8005eb94>] (cpu_startup_entry+0xf4/0x148) from [<807f1a2c>] (start_kernel+0x2c4/0x318)
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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"old_rdtodo" and "size" are short type. They are type promoted to int
and the condition is never true.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In addition to the error statuses -ETIMEDOUT and -EPIPE, uhci_hub_control()
needs to return the length of copied buffer when appropriate, so that the
returned status of ->hub_control() in rh_call_control() in the USB core
HCD can be properly handled.
This patch also removes the OK() macro to make the code more readable.
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes compile warnings on 64-bit builds that were introduced
by the recent isoc changes.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We want the USB fixes in this branch as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Put else keyword on same line as closing brace from if statement, added
{ } braces as the styleguide says.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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including
- spaces to tabs
- removing spaces before array indexing (foo [] to foo[])
- adding spaces around unary operator (foo? 1 : 0 to foo ? 1 : 0)
- removed trailing whitespace
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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instead of type
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Now that UHCI IO registers have been defined in uhci-hcd.h, use them.
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-spear glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-spear suspend scenario.
Calling explicitly the ohci_suspend() routine in
spear_ohci_hcd_drv_suspend() will ensure proper
handling of suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-sm501 glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly
handle ohci-sm501 suspend scenario.
Calling explicitly the ohci_suspend() routine in
ohci_sm501_suspend() will ensure proper handling of suspend
scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-pxa27x glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly
handle ohci-pxa27x suspend scenario.
Calling explicitly the ohci_suspend() routine in
ohci_hcd_pxa27x_drv_suspend() will ensure proper
handling of suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-platform glue was not
properly handled as it was not suspending generic part
of ohci controller.Alan Stern suggested, properly handle
ohci-platform suspend scenario.
Calling explicitly the ohci_suspend() routine in
ohci_platform_suspend() will ensure proper handling of
suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-omap glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-omap suspend scenario.
Calling explicitly the ohci_suspend() routine in
ohci_omap_suspend() will ensure proper handling of suspend
scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-exynos glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-exynos suspend scenario.
Calling explicitly the ohci_suspend() routine in
exynos_ohci_suspend() will ensure proper handling of suspend
scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-ep93xx glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-ep93xx suspend scenario.
Calling explicitly the ohci_suspend() routine in
ohci_hcd_ep93xx_drv_suspend() will ensure proper handling of
suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-da8xx glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-da8xx suspend scenario.
Calling explicitly the ohci_suspend()
routine in ohci_da8xx_suspend() will ensure proper
handling of suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-s3c2410 glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-s3c2410 suspend scenario.
Calling explicitly the ohci_suspend()
routine in ohci_hcd_s3c2410_drv_suspend() will ensure
proper handling of suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of ohci-at91 glue was not properly handled
as it was not suspending generic part of ohci controller. Alan Stern
suggested, properly handle ohci-at91 suspend scenario.
Calling explicitly the ohci_suspend() routine in ohci_hcd_at91_drv_suspend()
will ensure proper handling of suspend scenario. This task is sugested
by Alan Stern.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suspend scenario in case of OHCI was not properly
handled in ochi_suspend()routine. Alan Stern
suggested, properly handle OHCI suspend scenario.
This does generic proper handling of suspend
scenario to all OHCI SOC.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If USB_FUNCTIONFS is selected without USB_FUNCTIONFS_ETH and
USB_FUNCTIONFS_RNIS, u_ether.h won't be included and then
USB_ETHERNET_MODULE_PARAMAETERS macro won't be available causing the
following warning compilation:
drivers/usb/gadget/g_ffs.c:81:1: warning: data definition has no type or
storage class [enabled by default]
drivers/usb/gadget/g_ffs.c:81:1: warning: type defaults to ‘int’ in
declaration of ‘USB_ETHERNET_MODULE_PARAMETERS’ [-Wimplicit-int]
drivers/usb/gadget/g_ffs.c:81:1: warning: function declaration isn’t a
prototype [-Wstrict-prototypes]
This patch fixes the warning by making USB_ETHERNET_MODULE_PARAMETERS to
be used iff u_ether.h is included, otherwise it is not needed.
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds support for isochronous out transfers to the HWA. The
primary changes are:
1. Add a isoc_pack_desc_urb field to struct wa_seg. This urb is used
to send the isochronous packet info message to the HWA which describes
the isoc data segment(s) that will be sent as the payload of the
transfer request.
2. Use the URB iso_frame_desc field to populate the isochronous packet
info message and data segments sent to the HWA.
3. After the data is sent and transfer result is returned from the
HWA, read the isoc packet status message from the HWA. The contents of
the isoc packet status message are used to set the iso_frame_desc
status and actual_length fields in the original isoc URB. This feature
required the addition of a some state tracking variables in struct wahc
so the dti_urb knows what type of packet it expects to receive next.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This function was preventing us from supporting multiple
instances. Get rid of it. Since we support DT boots only,
users can get the control device phandle from the DT node.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.
Also get rid of "ti,has-mailbox" property as it is redundant and
we can determine that from whether "ctrl-module" property is present
or not. Get rid of has_mailbox from musb_hdrc_platform_data as well.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.
As we don't support non-DT boot, we just bail out on probe
if device node is not present.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support for new device types and in the process rid of "ti,type"
device tree property. The correct type of device will be determined
from the compatible string instead.
Introduce a compatible string for each device type. At the moment
we support 4 types OTGHS, USB2, PIPE3 (e.g. USB3) and DRA7USB2.
Update DT binding information to reflect these changes.
Also get rid of omap_control_usb3_phy_power(). Just one function
i.e. omap_control_usb_phy_power() will now take care of all PHY types.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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omap-control device is present from OMAP4 onwards which
support device tree boots only. So get rid of platform data.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch sets the RPIPE bOverTheAirInterval field for RPIPES which
refer to isochronous endpoints.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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