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2014-03-09Merge tag 'for_3.15' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next Kishon writes: Add new PHY drivers for SATA and USB in exynos, for USB in sunxi, and a multi-purpose PHY in APM, all adapted to generic PHY framework. Adapted USB3 PHY driver in OMAP to generic PHY driver and also used the same driver for SATA in OMAP. It also includes miscellaneous cleanups and fixes.
2014-03-09PHY: add APM X-Gene SoC 15Gbps Multi-purpose PHY driverLoc Ho
This patch adds support for the APM X-Gene SoC 15Gbps Multi-purpose PHY. This is the physical layer interface for the corresponding host controller. Currently, only external clock and Gen3 SATA mode are supported. Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Tuan Phan <tphan@apm.com> Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09Documentation: Add APM X-Gene SoC 15Gbps Multi-purpose PHY driver binding ↵Loc Ho
documentation This patch adds the APM X-Gene SoC 15Gbps Multi-purpose PHY driver binding documentation. Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Tuan Phan <tphan@apm.com> Signed-off-by: Suman Tripathi <stripathi@apm.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: omap: Depend on OMAP_OCP2SCP bus driverRoger Quadros
The OMAP_USB2 and OMAP_PIPE3 PHY devices will not be detected if the OMAP_OCP2SCP bus driver is not present. Make them depend on it. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: ti-pipe3: Fix suspend/resume and module reloadRoger Quadros
Due to Errata i783, SATA breaks if its DPLL is idled. The recommeded workaround to issue a softreset to the SATA controller doesn't seem to work. Here we just prevent SATA DPLL from Idling and hence avoid the issue altogether. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: ti-pipe3: streamline PHY operationsRoger Quadros
Limit .power_on() and .power_off() to just control the PHY power and not the DPLL. The DPLL will be enabled in .init() and idled in .exit(). Don't reprogram the DPLL if it has been already locked by the bootloader. This fixes a problem with SATA, where it fails if SATA was used by the bootloader. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: ti-pipe3: Don't get 'wkupclk' and 'refclk' for SATA PHYRoger Quadros
SATA PHY doesn't need 'wkupclk; and 'refclk' so don't try to get them for SATA PHY. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: ti-pipe3: Add SATA DPLL supportRoger Quadros
USB and SATA DPLLs need different settings. Provide the SATA DPLL settings and use the proper DPLL settings based on device tree node's compatible_id. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: ti-pipe3: cleanup clock handlingRoger Quadros
As this driver is no longer USB specific, use generic clock names. - Fix PLL_SD_SHIFT from 9 to 10 - Don't separate prepare/unprepare clock from enable/disable. This ensures optimal power savings. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: omap-control: update dra7 and am437 usb2 bindingsRoger Quadros
The dra7-usb2 and am437-usb2 bindings have not yet been used. Change them to be more elegant. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: rename struct omap_control_usb to struct omap_control_phyKishon Vijay Abraham I
Rename struct omap_control_usb to struct omap_control_phy since it can be used to control PHY of USB, SATA and PCIE. Also move the driver and include files under *phy* and made the corresponding changes in the users of phy-omap-control. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Felipe Balbi <balbi@ti.com>
2014-03-09phy: omap-usb2: Add different compatible for OMAP5George Cherian
Add a new compatible for OMAP5 since it does not use any of the OTG operations as of now. HAS_SRP and SET_VBUS functionalities are used only for OMAP4. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: omap-usb2: Provide workaround for USB2PHY false disconnectAustin Beam
Enable the dra7x errata workaround for false disconnect problem with USB2PHY. False disconnects were detected with some of the devices. Reduce the sensitivity of the disconnect logic within the USB2PHY subsystem to enusre these false disconnects are not registered. [george.cherian@ti.com] While at that, pass proper flags for each SoC's. This is a common driver used across OMAP4,OMAP5,DRA7xx and AM437x USB2PHY. False disconnect workaround is currently applicable for only DRA7x. Signed-off-by: Austin Beam <austinbeam@ti.com> Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-09phy: omap-usb2: Adapt phy-omap-usb2 for AM437xGeorge Cherian
Adapt phy-omap-usb2 driver for AM437x. - Add new comaptible "ti,am437x-usb2" for AM437x - Pass proper data to differentiate AM437x and others. - AM437x doesnot support set_vbus and start_srp. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08usb: wusbcore: use multiple urbs for HWA iso transfer result frame readsThomas Pugliese
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: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08usb: wusbcore: combine iso transfer result frame reads when possibleThomas Pugliese
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: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-08phy: Add Exynos 5250 support to the Exynos USB 2.0 PHY driverKamil Debski
Add support for Exynos 5250. This driver is to replace the old USB 2.0 PHY driver. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08phy: Add new Exynos USB 2.0 PHY driverKamil Debski
Add a new driver for the Exynos USB 2.0 PHY. The new driver uses the generic PHY framework. The driver includes support for the Exynos 4x10 and 4x12 SoC families. Signed-off-by: Kamil Debski <k.debski@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08phy: core: Add devm_of_phy_get to phy-coreKamil Debski
Adding devm_of_phy_get will allow to get phys by supplying a pointer to the struct device_node instead of struct device. Signed-off-by: Kamil Debski <k.debski@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-08phy: core: Add an exported of_phy_get functionKamil Debski
Previously the of_phy_get function took a struct device * and was declared static. It was impossible to call it from another driver and thus it was impossible to get phy defined for a given node. The old function was renamed to _of_phy_get and was left for internal use. of_phy_get function was added and it was exported. The function enables to get a phy for a given device tree node. Signed-off-by: Kamil Debski <k.debski@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-07Merge tag 'usb-for-v3.15' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next 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: Felipe Balbi <balbi@ti.com>
2014-03-07Merge tag 'for-usb-next-2014-03-06' of ↵Greg Kroah-Hartman
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: 7969943789df xhci: add the meaningful IRQ description if it is empty bcffae7708eb xhci: Prevent runtime pm from autosuspending during initialization e587b8b270d3 xhci: make warnings greppable 25cd2882e2fc usb/xhci: Change how we indicate a host supports Link PM. Sarah Sharp
2014-03-07usb: wusbcore: disable transfer notifications for Alereon HWAsThomas Pugliese
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: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-07usb: wusbcore: don't mark WA_SEG_DTI_PENDING segs as done in urb_dequeueThomas Pugliese
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: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-07usb: wusbcore: fix potential double list_del on urb dequeueThomas Pugliese
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: Thomas Pugliese <thomas.pugliese@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-07phy: omap-usb2: move omap_usb.h from linux/usb/ to linux/phy/Kishon Vijay Abraham I
No functional change. Moved omap_usb.h from linux/usb/ to linux/phy/. Also removed the unused members of struct omap_usb (after phy-omap-pipe3 started using it's own header file) Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-07phy: ti-pipe3: Add SATA compatible to Documentation bindingRoger Quadros
SATA PHY needs a new compatible ID. Add it to the DT binding documentation. Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07phy: ti-pipe3: Add clocks to PIPE3 PHY Documentation bindingRoger Quadros
Add wakeup, system and reference clocks to DT binding documentation. Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07phy: omap-control: update dra7 and am437 usb2 Documentation bindingsRoger Quadros
The dra7-usb2 and am437-usb2 bindings have not yet been used. Change them to be more elegant. Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07usb: gadget: return the right length in ffs_epfile_io()Chuansheng Liu
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: Michal Nazarewicz <mina86@mina86.com> Reviewed-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07usb: phy: fsm: update OTG HNP state transition conditions according to OTG ↵Li Jun
and EH 2.0 spec. 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: Li Jun <b47624@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07usb: gadget: u_ether: move hardware transmit to RX NAPIWeinn Jheng
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: Weinn 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: Felipe Balbi <balbi@ti.com>
2014-03-07usb: dwc3: gadget: remove known conditionsDan Carpenter
We know what "value" is and it upsets static checkers that we appear to have doubts about it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-07usb: dwc3: gadget: cut and paste fixups in suspend/resumeDan Carpenter
These were cut and paste from the ->disconnect function. Fixes commit 30d577b9bcc4 ('usb: dwc3: gadget: call gadget driver's ->suspend/->resume') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-06xhci: add the meaningful IRQ description if it is emptyAdrian Huang
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: Adrian Huang <ahuang12@lenovo.com> Reviewed-by: Nagananda Chumbalkar <nchumbalkar@lenovo.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2014-03-06xhci: Prevent runtime pm from autosuspending during initializationMathias Nyman
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: Mathias Nyman <mathias.nyman@linux.intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
2014-03-06phy: omap-control: Update DT binding informationRoger Quadros
Move omap-control binding information to the right location. Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-06usb: phy: omap-usb2: remove *set_suspend* callback from omap-usb2Kishon Vijay Abraham I
Now that omap-usb2 is adapted to the new generic PHY framework, *set_suspend* ops can be removed from omap-usb2 driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2014-03-06drivers: phy: usb3/pipe3: Adapt pipe3 driver to Generic PHY FrameworkKishon Vijay Abraham I
Adapted omap-usb3 PHY driver to Generic PHY Framework and moved phy-omap-usb3 driver in drivers/usb/phy to drivers/phy and also renamed the file to phy-ti-pipe3 since this same driver will be used for SATA PHY and PCIE PHY. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2014-03-05usb: gadget: f_fs: Add flags to descriptors blockMichal Nazarewicz
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: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: gadget: f_fs: Add support for SuperSpeed ModeManu Gautam
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: Manu Gautam <mgautam@codeaurora.org> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: gadget: atmel_usba: fix crashed during stopping when DEBUG is enabledGregory CLEMENT
commit 511f3c5 (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: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: gadget: atmel_usba: fix crash when no endpoint are specifiedAlexandre Belloni
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: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: mxs: Add sync time after controller clear phcdPeter Chen
After clear portsc.phcd, PHY needs 200us stable time for switch 32K clock to AHB clock. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: mxs: Add system suspend/resume APIPeter Chen
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: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: mxs: Add implementation of set_wakeupPeter Chen
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: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: Add set_wakeup APIPeter Chen
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: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: mxs: add controller idPeter Chen
It is used to access un-regulator registers according to different controllers. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: mxs: Enable IC fixes for related SoCsPeter Chen
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: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-03-05usb: phy: mxs: change description of usb device speedPeter Chen
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: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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