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2015-12-22usb: dwc2: Avoid double-reset at boot timeDouglas Anderson3-15/+22
In (usb: dwc2: reset dwc2 core before dwc2_get_hwparams()) we added an extra reset to the probe path for the dwc2 USB controllers. This allowed proper detection of parameters even if the firmware had already used the USB part. Unfortunately, this extra reset is quite slow and is affecting boot speed. We can avoid the double-reset by skipping the extra reset that would happen just after the one we added. Logic that explains why this is safe: * As of the CL mentioned above, we now always call dwc2_core_reset() in dwc2_driver_probe() before dwc2_hcd_init(). * The only caller of dwc2_hcd_init() is dwc2_driver_probe(), so we're guaranteed that dwc2_core_reset() was called before dwc2_hdc_init(). * dwc2_hdc_init() is the only caller that passes an irq other than -1 to dwc2_core_init(). Thus if dwc2_core_init() is called with an irq other than -1 we're guaranteed that dwc2_core_reset was called before dwc2_core_init(). ...this allows us to remove the dwc2_core_reset() in dwc2_core_init() if irq is not < 0. Note that since "irq" wasn't used in the function dwc2_core_init() anyway and since select_phy was always set at exactly the same times we could avoid the reset, we remove "irq" and rename "select_phy" to "initial_setup" and adjust the callers accordingly. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22usb: dwc2: reset dwc2 core before dwc2_get_hwparams()Yunzhi Li3-1/+8
We initiate dwc2 usb controller in BIOS, dwc2_core_reset() should be called before dwc2_get_hwparams() to reset core registers to default value. Without this the FIFO setting might be incorrect because calculating FIFO size need power-on value of GRXFSIZ/GNPTXFSIZ/HPTXFSIZ registers. This patch could avoid warnning massage like in rk3288 platform: [ 2.074764] dwc2 ff580000.usb: 256 invalid for host_perio_tx_fifo_size. Check HW configuration. Signed-off-by: Yunzhi Li <lyz@rock-chips.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22usb: dwc2: Restore GUSBCFG in dwc2_get_hwparams()Douglas Anderson1-7/+9
Previously dwc2_get_hwparams() was changing GUSBCFG and not putting it back the way it was (specifically it set and cleared FORCEHOSTMODE). Since we want to move dwc2_core_reset() _before_ dwc2_get_hwparams() we should make sure dwc2_get_hwparams() isn't messing with things in a permanent way. Since we're now looking at GUSBCFG, it's obvious that we shouldn't need all the extra delays if FORCEHOSTMODE was already set. This will avoid some delays for any ports that have forced host mode. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22usb: dwc2: gadget: don't overwrite DCTL register on NAKEFF interruptsGregory Herrero1-2/+2
When receiving GINTSTS_GINNAKEFF or GINTSTS_GOUTNAKEFF interrupt, DCTL will be overwritten with DCTL_CGOUTNAK or DCTL_CGNPINNAK values. Instead of overwriting it, write only needed bits. It could cause an issue if GINTSTS_GINNAKEFF or GINTSTS_GOUTNAKEFF interrupt is received after dwc2 disabled pullup by writing DCTL_SFTDISCON bit. Pullup will then be re-enabled whereas it should not. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22usb: dwc2: fix transfer stop programming for out endpointDu, Changbin1-5/+5
To stop an out endpoint, software should set sets the Global OUT NAK, but not the Global Non-periodic IN NAK. This driver bug leads the out-ep failed be in disabled state with below error. dwc2_hsotg_ep_stop_xfr: timeout DOEPCTL.EPDisable Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Du, Changbin <changbin.du@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22usb: gadget: Add the console support for usb-to-serial portBaolin Wang2-0/+264
It dose not work when we want to use the usb-to-serial port based on one usb gadget as a console. Thus this patch adds the console initialization to support this request. To avoid the re-entrance when transferring data with usb endpoint, it introduces a kthread to do the IO transmission. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-17usb: of: fix build breakage on !OFFelipe Balbi1-1/+2
If OF is disabled, we will try to define a stub for of_usb_get_dr_mode_by_phy(), however that missed a static inline annotation which made us redefine the stub over and over again. Fix that. Fixes: 98bfb3946695 ("usb: of: add an api to get dr_mode by the phy node") Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: inode.c: fix unbalanced spin_lock in ep0_writeDavid Eccher1-2/+1
Fix bad unlock balance: ep0_write enter with the locks locked from inode.c:1769, hence it must exit with spinlock held to avoid double unlock in dev_config. Signed-off-by: David Eccher <d.eccher@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: renesas_usbhs: add device tree support for r8a779[23]Simon Horman1-0/+2
Simply document new compatibility string. As a previous patch adds a generic R-Car Gen2 compatibility string there appears to be no need for a driver updates. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: renesas_usbhs: add fallback compatibility stringsSimon Horman2-2/+19
Add fallback compatibility strings for R-Car Gen2 and Gen3. This is in keeping with the fallback scheme being adopted wherever appropriate for drivers for Renesas SoCs. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: renesas_usbhs: add SoC names to compatibility string documentationSimon Horman1-4/+4
This extends the documentation of compatibility strings a little to include the SoC names. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: ether: Allow changing the MTUMike Looijmans1-14/+4
The gadget ethernet driver supports changing the MTU, but only allows this when the USB cable is removed. The comment indicates that this is because the "peer won't know". Even if the network link is still down and only the USB link is established, the driver won't allow the change. Other network interfaces allow changing the MTU any time, and don't force the link to be disabled. This makes perfect sense, because in order to be able to negotiate the MTU, the link needs to be up. Remove the restriction so that it is now actually possible to change the MTU (e.g. using "ifconfig usb0 mtu 15000") without having to manually pull the plug or change the driver's default setting. This is especially important after commit bba787a860fa ("usb: gadget: ether: Allow jumbo frames") Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16Documentation: usb: update usb-tools repository addressRobert Baldyga1-1/+1
It seems that gitorious repository is no longer accessible, so we replace it with address to active repository. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: f_midi: pre-allocate IN requestsFelipe F. Tonello2-39/+129
This patch introduces pre-allocation of IN endpoint USB requests. This improves on latency (requires no usb request allocation on transmit) and avoid several potential probles on allocating too many usb requests (which involves DMA pool allocation problems). This implementation also handles better multiple MIDI Gadget ports, always processing the last processed MIDI substream if the last USB request wasn't enought to handle the whole stream. Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: f_midi: fail if set_alt fails to allocate requestsFelipe F. Tonello1-1/+2
This ensures that the midi function will only work if the proper number of IN and OUT requrests are allocated. Otherwise the function will work with less requests then what the user wants. Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: f_midi: set altsettings only for MIDIStreaming interfaceFelipe F. Tonello1-2/+4
This avoids duplication of USB requests for OUT endpoint and re-enabling endpoints. Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: musb: Fix unbalanced pm_runtime_enableTony Lindgren1-0/+3
When reloading omap2430 kernel module we get a warning about unbalanced pm_runtime_enable. Let's fix this. Note that we need to do this after the child musb-core platform_device is removed because of pm_runtime_irq_safe being set at the child. Cc: Bin Liu <b-liu@ti.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: NeilBrown <neil@brown.name> Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: musb: core: Fix handling of the phy notificationsTony Lindgren7-74/+83
We currently can't unload omap2430 MUSB platform glue driver module and this cause issues for fixing the MUSB code further. The reason we can't remove omap2430 is because it uses the PHY functions and also exports the omap_musb_mailbox function that some PHY drivers are using. Let's fix the issue by exporting a more generic musb_mailbox function from the MUSB core and allow platform glue layers to register phy_callback function as needed. And now we can now also get rid of the include/linux/musb-omap.h. Cc: Bin Liu <b-liu@ti.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: NeilBrown <neil@brown.name> Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: musb: gadget: remove redundant conditionGeyslan G. Bem1-3/+2
This patch removes redundant condition. (!A || (A && B)) is the same as (!A || B). Fixes indentation too. Tested by: compilation only Caught by: cppcheck Signed-off-by: Geyslan G. Bem <geyslan@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: s3c-hsudc: remove redundant conditionGeyslan G. Bem1-1/+1
This patch removes redundant condition. (!A || (A && B)) is the same as (!A || B). Tested by compilation only. Caught by cppcheck. Signed-off-by: Geyslan G. Bem <geyslan@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: dwc3: gadget: pass a condition to dev_WARN_ONCE()Felipe Balbi1-8/+6
instead of using: if (condition) { dev_WARN_ONCE(dev, true, "foo"); return -EINVAL; } let's use: if (dev_WARN_ONCE(dev, condition, "foo")) return -EINVAL; Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: udc-core: independent registration of gadgets and gadget driversRuslan Bilovol2-9/+34
Change behavior during registration of gadgets and gadget drivers in udc-core. Instead of previous approach when for successful probe of usb gadget driver at least one usb gadget should be already registered use another one where gadget drivers and gadgets can be registered in udc-core independently. Independent registration of gadgets and gadget drivers is useful for built-in into kernel gadget and gadget driver case - because it's possible that gadget is really probed only on late_init stage (due to deferred probe) whereas gadget driver's probe is silently failed on module_init stage due to no any UDC added. Also it is useful for modules case - now there is no difference what module to insert first: gadget module or gadget driver one. Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> [simplified code as requested by Alan Stern and Felipe Balbi, fixed checkpatch issues] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: udc-core: remove unused usb_udc_attach_driver()Ruslan Bilovol2-28/+0
Now when last user of usb_udc_attach_driver() is switched to passing UDC name via usb_gadget_driver struct, it's safe to remove this function Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: configfs: pass UDC name via usb_gadget_driver structRuslan Bilovol1-13/+16
Now when udc-core supports binding to specific UDC by passing its name via 'udc_name' member of usb_gadget_driver struct, switch to this generic approach. Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> [rebased and fixed checkpatch issues] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: bind UDC by name passed via usb_gadget_driver structureRuslan Bilovol2-5/+23
Introduce new 'udc_name' member to usb_gadget_driver structure. The 'udc_name' is a name of UDC that usb_gadget_driver should be bound to. If udc_name is NULL, it will be bound to any available UDC. Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: phy: phy-am335x: bypass first VBUS sensing for host-only modeBin Liu4-11/+27
To prevent VBUS contention, the am335x MUSB phy senses VBUS first before transitioning to host mode. However, for host-only mode, VBUS could be directly tied to 5V power rail which could prevent MUSB transitions to host mode. This change receives dr_mode of the controller then bypass the first VBUS sensing for host-only mode, so that MUSB can work in host mode event if VBUS is tied to 5V. Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: phy: correct the am335x phy header filenameBin Liu3-2/+2
The filename of am35x-phy-control.h is confusing. The header is used by the am335x phy driver, but the filename refers to am35x. Even worse there is indeed another device called am35x but it does not use this header at all. Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: phy: Remove unused Renesas R-Car (Gen1) USB PHY driverGeert Uytterhoeven4-289/+0
As of commit 3d7608e4c169af03 ("ARM: shmobile: bockw: remove legacy board file and config"), the Renesas R-Car (Gen1) USB PHY driver is no longer used. In theory it could still be used on R-Car Gen1 SoCs, but that would require adding DT support to the driver. Instead, a new driver using the generic PHY framework should be written, as was done for R-Car Gen2. Remove the driver for good. Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: gadget: lpc32xxx_udc: clean up and sort include directives outVladimir Zapolskiy1-24/+11
Remove mach/irq.h from the list of included headers, there is no compilation dependency on this include file, and the change is needed to prevent a compilation failure, when mach/irq.h is removed. Additionally remove other unneeded includes and sort out their order. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc3: trace: show request flagsFelipe Balbi1-1/+10
struct usb_request have 3 flags which might be important to know about during debug. This patch shows each of the 3 flags as a single letter: z -> for zero s -> short not okay i -> interrupt A capital letter means the feature is enabled while a lower case letter means it is disabled; Thus 'zsI' indicates that a ZLP is not needed, that we can accept a short packet and interrupt for this request should be enabled. Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc3: gadget: handle request->zeroFelipe Balbi2-2/+51
So far, dwc3 has always missed request->zero handling for every endpoint. Let's implement that so we can handle cases where transfer must be finished with a ZLP. Note that dwc3 is a little special. Even though we're dealing with a ZLP, we still need a buffer of wMaxPacketSize bytes; to hide that detail from every gadget driver, we have a preallocated buffer of 1024 bytes (biggest bulk size) to use (and share) among all endpoints. Reported-by: Ravi B <ravibabu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: musb: convert printk to pr_*Rasmus Villemoes1-10/+7
This file already uses pr_debug in a few places; this converts the remaining printks. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: Clear interrupts before handling themDouglas Anderson2-35/+32
In general it is wise to clear interrupts before processing them. If you don't do that, you can get: 1. Interrupt happens 2. You look at system state and process interrupt 3. A new interrupt happens 4. You clear interrupt without processing it. This patch was actually a first attempt to fix missing device insertions as described in (usb: dwc2: host: Fix missing device insertions) and it did solve some of the signal bouncing problems but not all of them (which is why I submitted the other patch). Specifically, this patch itself would sometimes change: 1. hardware sees connect 2. hardware sees disconnect 3. hardware sees connect 4. dwc2_port_intr() - clears connect interrupt 5. dwc2_handle_common_intr() - calls dwc2_hcd_disconnect() ...to: 1. hardware sees connect 2. hardware sees disconnect 3. dwc2_port_intr() - clears connect interrupt 4. hardware sees connect 5. dwc2_handle_common_intr() - calls dwc2_hcd_disconnect() ...but with different timing then sometimes we'd still miss cable insertions. In any case, though this patch doesn't fix any (known) problems, it still seems wise as a general policy to clear interrupt before handling them. Note that for dwc2_handle_usb_port_intr(), instead of moving the clear of PRTINT to the beginning of the function we remove it completely. The only way to clear PRTINT is to clear the sources that set it in the first place. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: Add missing spinlock in dwc2_hcd_reset_func()Douglas Anderson1-0/+6
The dwc2_hcd_reset_func() function is only ever called directly by a delayed work function. As such no locks are already held when the function is called. Doing a read-modify-write of CPU registers and setting fields in the main hsotg data structure is a bad idea without locks. Let's add locks. The bug was found by code inspection only. It turns out that the dwc2_hcd_reset_func() is only ever called today if the "host_support_fs_ls_low_power" parameter is enabled and no code in mainline enables that parameter. Thus no known issues in mainline are fixed by this patch, but it's still probably wise to fix the function. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: of: add an api to get dr_mode by the phy nodeBin Liu2-6/+59
Some USB phy drivers have different handling for the controller in each dr_mode. But the phy driver does not have visibility to the dr_mode of the controller. This adds an api to return the dr_mode of the controller which associates the given phy node. Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: gadget: f_sourcesink: quit if usb_ep_queue returns errorPeter Chen1-0/+1
Since now, we may have more than one request during the test, and it is better we just quit once the error occurs instead of try queueing further requests. Signed-off-by: Peter Chen <peter.chen@freescale.com> Suggested-by: Krzysztof Opasiak <k.opasiak@samsung.com> Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: gadget: composite: remove redundant bcdUSB setting in legacyIgor Kotrasinski16-16/+16
Since composite now overwrites bcdUSB for any gadget, remove setting it in legacy gadgets. All legacy gadgets set 0x0200, the same as the value additionally set by composite, so there is no behaviour change. Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com> Rebase onto current balbi/next Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: Support immediate retries for split transactionsDouglas Anderson1-2/+12
In some cases, like when you've got a "Microsoft Wireless Keyboard 2000" connected to dwc2 with a hub, expected that we'll get some transfer errors sometimes. The controller is expected to try at least 3 times before giving up. See figure "Figure A-67. Normal HS CSPLIT 3 Strikes Smash" in the USB spec. The dwc2 controller has a way to support this by using the "EC_MC" field. The Raspberry Pi driver has logic for setting this right. See fiq_fsm_queue_split_transaction() in their "dwc_otg_hcd.c". Let's use the same logic. After making this change, we no longer get dropped characters from the above mentioned keyboard. Other devices on the same bus as the keyboard also behave more properly. Thanks for Julius Werner for the expert analysis and suggestions. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: Fix missing device insertionsDouglas Anderson4-11/+45
If you've got your interrupt signals bouncing a bit as you insert your USB device, you might end up in a state when the device is connected but the driver doesn't know it. Specifically, the observed order is: 1. hardware sees connect 2. hardware sees disconnect 3. hardware sees connect 4. dwc2_port_intr() - clears connect interrupt 5. dwc2_handle_common_intr() - calls dwc2_hcd_disconnect() Now you'll be stuck with the cable plugged in and no further interrupts coming in but the driver will think we're disconnected. We'll fix this by checking for the missing connect interrupt and re-connecting after the disconnect is posted. We don't skip the disconnect because if there is a transitory disconnect we really want to de-enumerate and re-enumerate. Notes: 1. As part of this change we add a "force" parameter to dwc2_hcd_disconnect() so that when we're unloading the module we avoid the new behavior. The need for this was pointed out by John Youn. 2. The bit of code needed at the end of dwc2_hcd_disconnect() is exactly the same bit of code from dwc2_port_intr(). To avoid duplication, we refactor that code out into a new function dwc2_hcd_connect(). Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: John Youn <johnyoun@synopsys.com> Tested-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: add support of hi6220Zhangfei Gao2-0/+34
Support hisilicon,hi6220-usb for HiKey board Acked-by: Rob Herring <robh@kernel.org> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: use kmem cache to allocate descriptorsGregory Herrero3-3/+71
Kmem caches help to get correct boundary for descriptor buffers which need to be 512 bytes aligned for dwc2 controller. Two kmem caches are needed for generic descriptors and for hs isochronous descriptors which doesn't have same size. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: fix descriptor list address maskingMian Yousaf Kaukab2-11/+3
Masks for HCDMA.CTD and HCDMA.DMAAddr are incorrect. As we always start from first descriptor, no need to mask the address anyway. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: avoid usage of dma_alloc_coherent with irqs disabledGregory Herrero5-25/+94
Use Streaming DMA mappings to handle cache coherency of frame list and descriptor list. Cache are always flushed before controller access it or before cpu access it. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: dwc2: host: enable descriptor dma for fs devicesMian Yousaf Kaukab6-3/+84
As descriptor dma mode does not support split transfers, it can't be enabled for high speed devices. Add a core parameter to enable it for full speed devices. Ensure frame list and descriptor list are correctly freed during disconnect. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: misc: usbtest: Remove timeval usageDeepa Dinamani1-82/+147
timeval is deprecated and not y2038 safe. Its size also changes according to 32 bit/ 64 bit compilation. Replace it with 32 and 64 bit versions of its individual fields, giving two ioctls with different code values. The two ioctls are necessary to maintain the 32 bit and 64 bit userspace compatibility with a 64/32 bit kernel. Change unsigned to __u32 types for a definitive userspace interface. This is in accordance with the psABI that the unsigned type is always 32 bits. Also use motonic timer instead of real time to ensure positive delta values. Refactor usbtest_ioctl for readability to isolate the handling of the testing timing measurement. The official testusb userspace tool can be changed in a separate patch to reflect the __u32 changes as well. It can use the usbtest_param_32 struct, since 32 bit seconds is long enough for test durations. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: gadget: gmidi: Cleanup legacy codeFelipe F. Tonello1-8/+0
Remove unnecessary headers and variables. Reviewed-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: gadget: define free_ep_req as universal functionFelipe F. Tonello5-16/+8
This function is shared between gadget functions, so this avoid unnecessary duplicated code and potentially avoid memory leaks. Reviewed-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: gadget: f_midi: remove duplicated codeFelipe F. Tonello1-19/+0
This code is duplicated from f_midi_start_ep(midi, f, midi->out_ep). Reviewed-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15Doc: ABI: configfs-usb-gadget-sourcesink: add two entries for depth of queuePeter Chen1-0/+2
Add both bulk and iso depth of queue entries. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: renesas_usbhs: Modify ep.caps.type_xxx and usb_ep_maxpacket_limit()Yoshihiro Shimoda1-7/+12
This patch modifies the ep.caps.type_{iso,bulk,int} setting and the second argument of usb_ep_maxpacket_limit() using the dparam.pipe_configs. In the previous code, all the type_{iso,bulk,int} were set to true. However, to avoid waste time for finding suitable pipe in usb_ep_enable(), this driver should set correct type. Also the second argument of usb_ep_maxpacket_limit() was set to 512 even if the pipe is isochronous or interrupt. So, this driver could not bind a gadget driver like the g_audio driver. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>