- 09 3月, 2014 2 次提交
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由 Thomas Pugliese 提交于
Submit multiple concurrent urbs for HWA isochronous transfer result data frame reads. This keeps the read pipeline full and significantly improves performance in cases where the frame reads cannot be combined because they are not contiguous or multiples of the max packet size. Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Thomas Pugliese 提交于
When reading the transfer result data for an isochronous in request, if the current frame actual_length is contiguous with the next frame and actual_length is a multiple of the DTI endpoint max packet size, combine the current frame with the next frame in a single URB. This reduces the number of URBs that must be submitted in that case which increases performance and reduces CPU interrupt overhead. Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 3月, 2014 13 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb由 Greg Kroah-Hartman 提交于
Felipe writes: usb: patches for v3.15 another substantial pull request with new features all over the place. dwc3 got a bit closer towards hibernation support with after a few patches re-factoring code to be reused for hibernation. Also in dwc3 two new workarounds for known silicon bugs have been implemented, some randconfig build errors have been fixed, and it was taught about the new generic phy layer. MUSB on AM335x now supports isochronous transfers thanks to George Cherian's work. The atmel_usba driver got two crash fixes: one when no endpoint was specified in DeviceTree data and another when stopping the UDC in DEBUG builds. Function FS got a much needed fix to ffs_epfile_io() which was copying too much data to userspace in some cases. The printer gadget got a fix for a possible deadlock and plugged a memory leak. Ethernet drivers now use NAPI for RX which gives improved throughput. Other than that, the usual miscelaneous fixes, cleanups, and the like. Signed-of-by: NFelipe Balbi <balbi@ti.com>
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由 Greg Kroah-Hartman 提交于
Merge tag 'for-usb-next-2014-03-06' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next Sarah writes: xhci: Streams and UAS cleanups, misc cleanups for 3.15 Hi Greg, Here's 76 patches to queue to usb-next for 3.15. The bulk of this rather large pull request is the UAS driver cleanup, the xHCI streams fixes, and the new userspace API for usbfs to be able to use and alloc/free bulk streams. I've hammered on these changes, and the UAS driver seems solid. The performance numbers are pretty spiffy too: root@xanatos:~# echo 3 > /proc/sys/vm/drop_caches; dd if=/dev/sdb of=/dev/null bs=4k count=1000M iflag=count_bytes 256000+0 records in 256000+0 records out 1048576000 bytes (1.0 GB) copied, 3.28557 s, 319 MB/s That's about 100 MB/s faster than my fastest Bulk-only-Transport mass storage drive. There's a couple of miscellaneous cleanup patches and non-urgent bug fixes in here as well: 79699437 xhci: add the meaningful IRQ description if it is empty bcffae77 xhci: Prevent runtime pm from autosuspending during initialization e587b8b2 xhci: make warnings greppable 25cd2882 usb/xhci: Change how we indicate a host supports Link PM. Sarah Sharp
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由 Thomas Pugliese 提交于
The HWA driver does not do anything with transfer notifications after receiving the first one and the Alereon HWA allows them to be disabled as a performance optimization. This patch sends a vendor specific command to the Alereon HWA on startup to disable transfer notifications. If the command is successful, the DTI system is started immediately since that would normally be started upon the first reception of a transfer notification which will no longer be sent. Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Thomas Pugliese 提交于
Data for transfer segments in the WA_SEG_DTI_PENDING state is actively being read by the driver. Let the buffer read callback handle the transfer cleanup since cleaning it up in wa_urb_dequeue will cause the read callback to access invalid memory if the transfer is completed. Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Thomas Pugliese 提交于
This patch locks rpipe->seg_lock around the entire transfer segment cleanup loop in wa_urb_dequeue instead of just one case of the switch statement. This fixes a race between __wa_xfer_delayed_run and wa_urb_dequeue where a transfer segment in the WA_SEG_DELAYED state could be removed from the rpipe seg_list twice leading to memory corruption. It also switches the spin_lock call to use the non-irqsave version since the xfer->lock is already held and irqs already disabled. Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Roger Quadros 提交于
SATA PHY needs a new compatible ID. Add it to the DT binding documentation. Acked-by: NKishon Vijay Abraham I <kishon@ti.com> Signed-off-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Roger Quadros 提交于
Add wakeup, system and reference clocks to DT binding documentation. Acked-by: NKishon Vijay Abraham I <kishon@ti.com> Signed-off-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Roger Quadros 提交于
The dra7-usb2 and am437-usb2 bindings have not yet been used. Change them to be more elegant. Acked-by: NKishon Vijay Abraham I <kishon@ti.com> Signed-off-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Chuansheng Liu 提交于
When the request length is aligned to maxpacketsize, sometimes the return length ret > the user space requested len. At that time, we will use min_t(size_t, ret, len) to limit the size in case of user data buffer overflow. But we need return the min_t(size_t, ret, len) to tell the user space rightly also. [ balbi@ti.com: also fix comment's indentation ] Acked-by: NMichal Nazarewicz <mina86@mina86.com> Reviewed-by: NDavid Cohen <david.a.cohen@linux.intel.com> Signed-off-by: NChuansheng Liu <chuansheng.liu@intel.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Li Jun 提交于
According to:"On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification July 27, 2012 Revision 2.0 version 1.1a" - From a_host to a_wait_bcon if !b_conn - Add transition from a_host to a_wait_vfall if id state is high or a_bus_drop - From a_wait_vfall to a_idle if a_wait_vfall_tmout Signed-off-by: NLi Jun <b47624@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Weinn Jheng 提交于
In order to reduce the interrupt times in the embedded system, a receiving workqueue is introduced. This modification also enhanced the overall throughput as the benefits of reducing interrupt occurrence. This work was derived from previous work: u_ether: move hardware transmit to RX workqueue. Which should be base on codeaurora's work. However, the benchmark on my platform shows the throughput with workqueue is slightly better than NAPI. Signed-off-by: NWeinn Jheng <clanlab.proj@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: David S. Miller <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Manu Gautam <mgautam@codeaurora.org> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Dan Carpenter 提交于
We know what "value" is and it upsets static checkers that we appear to have doubts about it. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Dan Carpenter 提交于
These were cut and paste from the ->disconnect function. Fixes commit 30d577b9bcc4 ('usb: dwc3: gadget: call gadget driver's ->suspend/->resume') Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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- 07 3月, 2014 2 次提交
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由 Adrian Huang 提交于
When some xHCI host controllers fall back to use the legacy IRQ, the member irq_descr of the usb_hcd structure will be empty. This leads to the empty string of the xHCI host controller in /proc/interrupts. Here is the example (The irq 19 is the xHCI host controller): CPU0 0: 91 IO-APIC-edge timer 8: 1 IO-APIC-edge rtc0 9: 7191 IO-APIC-fasteoi acpi 18: 104 IR-IO-APIC-fasteoi ehci_hcd:usb1, ehci_hcd:usb2 19: 473 IR-IO-APIC-fasteoi After applying the patch, the name of the registered xHCI host controller can be displayed correctly. Here is the example: CPU0 0: 91 IO-APIC-edge timer 8: 1 IO-APIC-edge rtc0 9: 7191 IO-APIC-fasteoi acpi 18: 104 IR-IO-APIC-fasteoi ehci_hcd:usb1, ehci_hcd:usb2 19: 473 IR-IO-APIC-fasteoi xhci_hcd:usb3 Tested on v3.14-rc4. Signed-off-by: NAdrian Huang <ahuang12@lenovo.com> Reviewed-by: NNagananda Chumbalkar <nchumbalkar@lenovo.com> Signed-off-by: NSarah Sharp <sarah.a.sharp@linux.intel.com>
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由 Mathias Nyman 提交于
xHCI driver has its own pci probe function that will call usb_hcd_pci_probe to register its usb-2 bus, and then continue to manually register the usb-3 bus. usb_hcd_pci_probe does a pm_runtime_put_noidle at the end and might thus trigger a runtime suspend before the usb-3 bus is ready. Prevent the runtime suspend by increasing the usage count in the beginning of xhci_pci_probe, and decrease it once the usb-3 bus is ready. xhci-platform driver is not using usb_hcd_pci_probe to set up busses and should not need to have it's usage count increased during probe. Signed-off-by: NMathias Nyman <mathias.nyman@linux.intel.com> Acked-by: NDan Williams <dan.j.williams@intel.com> Acked-by: NAlan Stern <stern@rowland.harvard.edu> Signed-off-by: NSarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
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- 06 3月, 2014 23 次提交
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由 Roger Quadros 提交于
Move omap-control binding information to the right location. Acked-by: NKishon Vijay Abraham I <kishon@ti.com> Signed-off-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Michal Nazarewicz 提交于
This reworks the way SuperSpeed descriptors are added and instead of having a magic after full and high speed descriptors, it reworks the whole descriptors block to include a flags field which lists which descriptors are present and makes future extensions possible. Signed-off-by: NMichal Nazarewicz <mina86@mina86.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Manu Gautam 提交于
Allow userspace to pass SuperSpeed descriptors and handle them in the driver accordingly. This change doesn't modify existing desc_header and thereby keeps the ABI changes backward compatible i.e. existing userspace drivers compiled with old header (functionfs.h) would continue to work with the updated kernel. Signed-off-by: NManu Gautam <mgautam@codeaurora.org> Acked-by: NMichal Nazarewicz <mina86@mina86.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Gregory CLEMENT 提交于
commit 511f3c53 (usb: gadget: udc-core: fix a regression during gadget driver unbinding) introduced a crash when DEBUG is enabled. The debug trace in the atmel_usba_stop function made the assumption that the driver pointer passed in parameter was not NULL, but since the commit above, such assumption was no longer always true. This commit now uses the driver pointer stored in udc which fixes this issue. [ balbi@ti.com : improved commit log a bit ] Cc: <stable@vger.kernel.org> # v3.2+ Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Alexandre Belloni 提交于
If no endpoints are present in the device tree, the kernel will crash with the following error: Unable to handle kernel paging request at virtual address 00101008 [...] [<c0222ff4>] (composite_dev_prepare) from [<c022326c>] (composite_bind+0x5c/0x190) [<c022326c>] (composite_bind) from [<c021ff8c>] (udc_bind_to_driver+0x48/0xf0) [<c021ff8c>] (udc_bind_to_driver) from [<c02208e0>] (usb_gadget_probe_driver+0x7c/0xa0) [<c02208e0>] (usb_gadget_probe_driver) from [<c0008970>] (do_one_initcall+0x94/0x140) [<c0008970>] (do_one_initcall) from [<c04b4b50>] (kernel_init_freeable+0xec/0x1b4) [<c04b4b50>] (kernel_init_freeable) from [<c0376cc4>] (kernel_init+0x8/0xe4) [<c0376cc4>] (kernel_init) from [<c0009590>] (ret_from_fork+0x14/0x24) Code: e5950014 e1a04001 e5902008 e3a010d0 (e5922008) ---[ end trace 35c74bdd89b373d0 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b This checks for that case and returns an error, not allowing the driver to be loaded with no endpoints. Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
After clear portsc.phcd, PHY needs 200us stable time for switch 32K clock to AHB clock. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
We need this to keep PHY's power on or off during the system suspend mode. If we need to enable USB wakeup, then we must keep PHY's power being on during the system suspend mode. Otherwise, we need to keep PHY's power being off to save power. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
When we need the PHY can be waken up by external signals, we can call this API. Besides, we call mxs_phy_disconnect_line at this API to close the connection between USB PHY and controller, after that, the line state from controller is SE0. Once the PHY is out of power, without calling mxs_phy_disconnect_line, there are unknown wakeups due to dp/dm floating at device mode. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
This API is used to set wakeup enable at PHY registers, in that case, the PHY can be waken up from suspend due to external events, like vbus change, dp/dm change and id change. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
It is used to access un-regulator registers according to different controllers. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
Two PHY bugs are fixed by IC logic, but these bits are not enabled by default, so we enable them at driver. The two bugs are: MXS_PHY_ABNORMAL_IN_SUSPEND and MXS_PHY_SENDING_SOF_TOO_FAST which are described at code. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
Change "high speed" to "HS" Change "non-high speed" to "FS/LS" Implementation of notify_suspend and notify_resume will be different according to mxs_phy_data->flags. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
It is needed by imx6 SoC series, but not for imx23 and imx28. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
Add anatop phandle which is used to access anatop registers to control PHY's power and other USB operations. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
The auto setting is used to open related power and clocks automatically after receiving wakeup signal. With this feature, the PHY's clock and power can be recovered correctly from low power mode, it is guaranteed by IC logic. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
The mxs-phy has several bugs and features at different versions, the driver code can get it through of_device_id.data. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
Add "fsl,imx6q-usbphy" for imx6dq and imx6dl, add "fsl,imx6sl-usbphy" for imx6sl, and "fsl,imx23-usbphy" is still a fallback for other strings. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Marek Szyprowski 提交于
This patch adds suspend/resume support to s3c-hsotg driver. It makes UDC driver more power efficient. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Tested-by: NRobert Baldyga <r.baldyga@samsung.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 George Cherian 提交于
Reprogramming the DMA after tear down is initiated leads to warning. This is mainly seen with ISOCH since we do a delayed completion for ISOCH transfers. In ISOCH transfers dma_completion should not reprogram if the channel tear down is initiated. Signed-off-by: NGeorge Cherian <george.cherian@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Kishon Vijay Abraham I 提交于
Adapted dwc3 core to use the Generic PHY Framework. So for init, exit, power_on and power_off the following APIs are used phy_init(), phy_exit(), phy_power_on() and phy_power_off(). However using the old USB phy library wont be removed till the PHYs of all other SoC's using dwc3 core is adapted to the Generic PHY Framework. Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Kishon Vijay Abraham I 提交于
Since PHYs for dwc3 is optional (not all SoCs having PHYs for DWC3 should be programmed), do not return from probe if the USB PHY library returns -ENODEV as that indicates the platform does not have a programmable PHY. While this can be considered as a temporary fix, a long term solution would be to add 'nop' PHY for platforms that does not have programmable PHY. Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com> Reviewed-by: NRoger Quadros <rogerq@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Kishon Vijay Abraham I 提交于
Since now we have a separate folder for phy, move the PHY dt binding documentation of TI to that folder. Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Felipe Balbi 提交于
few new revisions of the core have been released, add them to our list of revisions so we can apply workarounds if necessary. Signed-off-by: NFelipe Balbi <balbi@ti.com>
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