- 26 Jan, 2017 7 commits
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Johan Hovold authored
The driver reports that it always uses a low-latency mode by returning the ASYNC_LOW_LATENCY flag through TIOCGSERIAL. Even if this behaviour could not be changed, this may have made some sense prior to 7a9a65ce ("cdc-acm: Fix long standing abuse of tty->low_latency") which removed the unconditional setting of the corresponding tty low_latency flag (something which had always been broken in itself). Since the driver does not have a low-latency mode, let's drop the flag. Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usbGreg Kroah-Hartman authored
Felipe writes: USB: changes for v4.11 Here's the big pull request for the Gadget API. Again the majority of changes sit in dwc2 driver. Most important changes contain a workaround for GOTGCTL being wrong, a sleep-inside-spinlock fix and the big series of cleanups on dwc2. One important thing on dwc3 is that we don't anymore need gadget drivers to cope with unaligned OUT transfers for us. We have support for appending one extra chained TRB to align transfer ourselves. Apart from these, the usual set of typos, non-critical fixes, etc.
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Felipe Balbi authored
dwc3 revisions <=3.00a have a limitation where Port Disable command doesn't work. Set the quirk-broken-port-ped property for such controllers so XHCI core can do the necessary workaround. [rogerq@ti.com] Updated code from platform data to device property. Signed-off-by:
Roger Quadros <rogerq@ti.com> Signed-off-by:
Felipe Balbi <felipe.balbi@linux.intel.com>
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Heiner Kallweit authored
The irq is available in hsotg already, so there's no need to pass it as separate function parameter. Acked-by:
John Youn <johnyoun@synopsys.com> Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Heiner Kallweit authored
Set the iomem parameters in the usb_hcd to fix this misleading message during driver load: dwc2 c9100000.usb: irq 22, io mem 0x00000000 Acked-by:
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Arnd Bergmann authored
The only caller of this function is gone, so now we get a warning: drivers/usb/phy/phy-ab8500-usb.c:1026:17: error: 'ab8500_eyediagram_workaroud' defined but not used [-Werror=unused-function] It is possible that we should in fact still call the function from somewhere else, but I don't see from where. Fixes: 635f997a499b ("usb: phy: ab8500: Remove the set_power callback") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Magnus Lilja authored
Commit 304f7e5e ("usb: gadget: Refactor request completion") removed check if req->req.complete is non-NULL, resulting in a NULL pointer derefence and a kernel panic. This patch adds an empty complete function instead of re-introducing the req->req.complete check. Fixes: 304f7e5e ("usb: gadget: Refactor request completion") Signed-off-by:
Magnus Lilja <lilja.magnus@gmail.com> Cc: <stable@vger.kernel.org> # 3.18+ Signed-off-by:
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- 25 Jan, 2017 33 commits
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Felipe Balbi authored
Instead of assuming all IN endpoints support 1024 bytes, let's read the actual value from HW and pass that to gadget API. Signed-off-by: -
Mathias Nyman authored
Use switch instead of several if statements Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
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Mathias Nyman authored
Instead of storing a zero length array of td pointers, and then allocate memory both for the td pointer array and the td's, just use a zero length array of actual td's in urb private data. old: struct urb_priv { struct xhci_td *td[0] } new: struct urb_priv { struct xhci_td td[0] } Signed-off-by: -
Mathias Nyman authored
urb_priv structure has a count on how many TDs the URB contains, and how many of those TD's we have handled. rename: length -> num_tds td_cnt -> num_tds_done No functional changes Signed-off-by:
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Mathias Nyman authored
No functinal changes. num_tds describes the number of transfer descriptor better than "size" Signed-off-by:
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Felipe Balbi authored
Let's start tracing at least part of an xhci_virt_device lifetime. We might want to extend this tracepoint class later, but for now it already exposes quite a bit of valuable information. Signed-off-by:
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Felipe Balbi authored
If we add that newline, the output will look like the following: kworker/2:1-42 [002] .... 169.811435: xhci_address_ctx: ctx_64=0, ctx_type=2, ctx_dma=@153fbd000, ctx_va=@ffff880153fbd000 We would rather have that in a single line. Signed-off-by: -
Felipe Balbi authored
when getting endpoint type, a switch statement looks better than a series of if () branches. There are no functional changes with this patch, cleanup only. Signed-off-by:
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Felipe Balbi authored
These three new tracers will help us tie TRBs into URBs by *also* looking into URB lifetime. Signed-off-by:
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Felipe Balbi authored
instead of having a tracer that can only trace command completions, let's promote this tracer so it can trace and decode any TRB. With that, it will be easier to extrapolate the lifetime of any TRB which might help debugging certain issues. Signed-off-by:
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Felipe Balbi authored
If we just provide a helper to convert completion code to string, we can combine all debugging messages into a single print. [keep the old debug messages, for warn and grep -Mathias] Signed-off-by:
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Felipe Balbi authored
instead of using while(!list_empty()) followed by list_first_entry(), we can actually use list_for_each_entry_safe(). Signed-off-by:
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Mathias Nyman authored
Remove duplicate code by using trb_to_noop() when handling Aborted commads Based on earlier code by Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Mathias Nyman authored
Useful for turning both transfer and command trbs into no-ops. Based on earlier code by Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Felipe Balbi authored
xhci_unmap_td_bounce_buffer() already checks for a valid td->bounce_seg and bails out early if that's invalid. There's no need to check for this twice. Signed-off-by:
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Felipe Balbi authored
This way we can remove checks for valid ring from call sites of xhci_unmap_td_bounce_buffer() Signed-off-by:
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Felipe Balbi authored
handle_tx_event() is not releasing xhci->lock nor reacquiring it, remove the bogus annotation. Signed-off-by:
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Felipe Balbi authored
By extracting xhci_td_cleanup() from finish_td(), code before clearer and easier to follow. There are no functional changes with this patch. It's merely a cleanup. Signed-off-by:
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Felipe Balbi authored
no functional changes. Simple cleanup to make sure variables are ordered in a 'reverse christmas tree' fashion. While at that, also remove an obsolete comment which doesn't apply anymore. Signed-off-by:
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Felipe Balbi authored
Replace list_entry() with list_first_entry() and list_for_each() with list_for_each_entry(). This makes the code slightly more readable. Signed-off-by:
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Felipe Balbi authored
it does no good, let's remove it. Signed-off-by:
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Felipe Balbi authored
Instead of having several return points, let's use a local variable and a single place to return. This makes the code slightly easier to read. [set ret = IRQ_HANDLED in default working case -Mathias] Signed-off-by:
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Felipe Balbi authored
Cleanup only. This patch is a mechaninal rename to make sure our macros for TRB completion codes match what the specification uses to refer to such errors. The idea behind this is that it makes it far easier to grep the specification and match it with implementation. Signed-off-by:
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Felipe Balbi authored
When calling xhci_dbg_regs() we actually _do_ want to know XHCI's version. This might help figure out why certain problems only happen in some cases. Signed-off-by:
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Felipe Balbi authored
This is a cleanup patch only, no functional changes. The idea is just to make sure for loops look the same all over the driver. Signed-off-by:
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Lu Baolu authored
Remove the unnecessary return line in xhci_pci_setup(). Signed-off-by:
Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by:
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Lu Baolu authored
Use list_is_singular() to check if cmd_list has only one entry. [use list_empty() in queue command instead -Mathias] Signed-off-by:
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Lu Baolu authored
No need to calculate remainder and length_field, if there is no data phase of a control transfer. Signed-off-by:
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Lu Baolu authored
Drop an unnecessary assignment in prepare_transfer(). Signed-off-by:
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Felipe Balbi authored
In case 'quirk-broken-port-ped' property is passed in via device property, we should enable the corresponding BROKEN_PED quirk flag for XHCI core. [rogerq@ti.com] Updated code from platform data to device property and added DT binding. Signed-off-by:
Felipe Balbi <balbi@ti.com> Signed-off-by:
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Felipe Balbi authored
Some devices from Texas Instruments [1] suffer from a silicon bug where Port Enabled/Disabled bit should not be used to silence an erroneous device. The bug is so that if port is disabled with PED bit, an IRQ for device removal (or attachment) will never fire. Just for the sake of completeness, the actual problem lies with SNPS USB IP and this affects all known versions up to 3.00a. A separate patch will be added to dwc3 to enabled this quirk flag if version is <= 3.00a. [1] - AM572x Silicon Errata http://www.ti.com/lit/er/sprz429j/sprz429j.pdf Section i896— USB xHCI Port Disable Feature Does Not Work Signed-off-by:
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Alexander Stein authored
This allows someone to grep for the complete warning message as in; xhci-hcd xhci-hcd.0.auto: USB core suspending device not in U0/U1/U2. Signed-off-by:
Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by:
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Baolin Wang authored
Since the 'addr_64' variable as legacy is unused now, then remove it from xhci_hcd structure. Signed-off-by:
Baolin Wang <baolin.wang@linaro.org> Signed-off-by:
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