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path: root/drivers/usb/host/ehci-msm.c
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* usb: host: remove ehci-msm.cAlex Elder2017-11-011-265/+0
| | | | | | | | | | | No Qualcomm SoC requires the "ehci-msm.c" code any more. So remove it. Suggested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Alex Elder <elder@linaro.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Andy Gross <andy.gross@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Conditionally call ehci suspend/resumeAndy Gross2016-06-071-2/+12
| | | | | | | | | | | This patch fixes a suspend/resume issue where the driver is blindly calling ehci_suspend/resume functions when the ehci hasn't been setup. This results in a crash during suspend/resume operations. Signed-off-by: Andy Gross <andy.gross@linaro.org> Tested-by: Pramod Gurav <pramod.gurav@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb/host/: const data must use __initconst not __initdataNicolas Pitre2016-04-281-1/+1
| | | | | | | | | Init data marked const should be annotated with __initconst for correctness and not __initdata. This also fixes LTO builds that otherwise fail with section mismatch errors. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Register usb shutdown functionAzriel Samson2016-01-241-0/+1
| | | | | | | | | | | | Registering usb_hcd_platform_shutdown to be called during shutdown. This is a generic function that performs the generic host stack's shutdown. It ensures that USB operations do not continue while kexec boots a new kernel. Signed-off-by: Azriel Samson <asamson@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Fix register initializationJack Pham2016-01-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The default value for the 'transceiver select' field of the PORTSC register may not always be correct. Previously the phy-msm-usb driver would do this for us, but since ehci-msm can now be instantiated standalone without any PHY driver, the register needs to be explicitly initialized to ULPI mode to properly communicate with the PHY. This is not readily apparent, as firmware or bootloader code also happen to pre-initialize this for us. However, it can manifest when performing a driver unbind/rebind as follows: cd /sys/bus/platform/drivers/msm_hsusb_host echo QCOM8040:00 > unbind echo QCOM8040:00 > bind The EHCI core executes a controller reset as part of this, and as a result the register in question would revert to its default state and must be re-initialized properly. Furthermore this may be useful in the future when adding PM suspend/resume support. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Add support for ACPI probingJack Pham2016-01-241-0/+8
| | | | | | | | | | Allow the EHCI MSM driver to probe against an ACPI enumerated device with ID QCOM8040. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Remove dependency on OTG PHYJack Pham2016-01-241-22/+31
| | | | | | | | | | | | | Currently the EHCI MSM driver has a hard dependency to be created by an OTG layer, namely the phy-msm-usb driver. In some cases or board configurations we want to allow the EHCI host to be instantiated without OTG capability. Instead, relax the dependency on having an OTG PHY being present and call usb_add_hcd() directly. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Allow LS devices to workJack Pham2016-01-241-0/+2
| | | | | | | | | | Disable the silicon quirk which is normally enabled for HSIC host mode. This would otherwise prevent low speed devices from enumerating properly. Signed-off-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Use posted data writes on AHBAndy Gross2015-12-011-2/+2
| | | | | | | | | | This patch sets the AHBMODE to allow for posted data writes. This results in higher performance. Signed-off-by: Andy Gross <agross@codeaurora.org> Tested-by: Georgi Djakov <georgi.djakov@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: fix handling platform_get_irq resultAndrzej Hajda2015-10-041-3/+3
| | | | | | | | | | | | | The function can return negative values. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Revert "usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap"Ivan T. Ivanov2015-04-281-3/+10
| | | | | | | | | | | | | This reverts commit 70843f623b58 ("usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap") and commit e507bf577e5a ("host: ehci-msm: remove duplicate check on resource"), because msm_otg and this driver are using same address space to access AHB mode and USB command registers. Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* host: ehci-msm: remove duplicate check on resourceVarka Bhadram2014-11-071-8/+2
| | | | | | | | Sanity check on resource happening with devm_ioremap_resource(). Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: rename phy to usb_phy in HCDAntoine Tenart2014-09-291-2/+2
| | | | | | | | | | | | | | The USB PHY member of the HCD structure is renamed to 'usb_phy' and modifications are done in all drivers accessing it. This is in preparation to adding the generic PHY support. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> [Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects, updated changelog.] Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: ehci-msm: Make of_device_id array constJingoo Han2014-07-091-1/+1
| | | | | | | | Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremapVivek Gautam2014-05-271-4/+3
| | | | | | | | | | | | Using devm_ioremap_resource() API should actually be preferred over devm_ioremap(), since the former request the mem region first and then gives back the ioremap'ed memory pointer. devm_ioremap_resource() calls request_mem_region(), therby preventing other drivers to make any overlapping call to the same region. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: ehci-msm: Add device tree support and binding informationIvan T. Ivanov2013-10-111-2/+13
| | | | | | | | 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>
* ehci-msm: Remove global struct usb_phy variableIvan T. Ivanov2013-10-111-2/+3
| | | | | | | | 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>
* USB: EHCI: make ehci-msm a separate driverManjunath Goudar2013-04-081-48/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Separate the Qualcomm QSD/MSM on-chip host controller driver from ehci-hcd host code so that it can be built as a separate driver module. This work is part of enabling multi-platform kernels on ARM; however, note that other changes are still needed before Qualcomm QSD/MSM can be booted with a multi-platform kernel, which is not expected before 3.11. With the infrastructure added by Alan Stern in patch 3e0232039 "USB: EHCI: prepare to make ehci-hcd a library module", we can avoid this problem by turning a bus glue into a separate module, as we do here for the msm bus glue. In V5 (arnd): - add FIXME about missing usb_add_hcd() or usb_remove_hcd() calls In V3: - Detailed commit message added here describing why this patch is required. - Arranged #include's in alphabetical order. - driver.name initialized hcd_name[] = "ehci-msm" in platform_driver structure initialization instead of "msm-ehci", which was the reason why it broke in EHCI USB testing In V2: Tegra patch related changes removed from this patch. Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: ehci-msm: fix PHY error handlingFelipe Balbi2013-03-181-1/+1
| | | | | | | PHY layer no longer returns NULL. We must switch from IS_ERR_OR_NULL() to IS_ERR(). Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: remove use of __devexitBill Pemberton2012-11-211-1/+1
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: remove use of __devexit_pBill Pemberton2012-11-211-1/+1
| | | | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: EHCI: remove ehci_port_power() routineAlan Stern2012-10-311-1/+0
| | | | | | | | | | | | | | | This patch (as1623) removes the ehci_port_power() routine and all the places that call it. There's no reason for ehci-hcd to change the port power settings; the hub driver takes care of all that stuff. There is one exception: When the controller is resumed from hibernation or following a loss of power, the ports that are supposed to be handed over to a companion controller must be powered on first. Otherwise the handover won't work. This process is not visible to the hub driver, so it has to be handled in ehci-hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drivers/usb/host/ehci-msm.c: use devm_ functionsJulia Lawall2012-08-101-9/+4
| | | | | | | | | | | | | The various devm_ functions allocate memory that is released when a driver detaches. This patch uses these functions for data that is allocated in the probe function of a platform device and is only freed in the remove function. The original code was also missing a call to iounmap(hcd->regs); in the remove function, so this patch also implicitly fixes a bug. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* EHCI: centralize controller suspend/resumeAlan Stern2012-07-091-16/+3
| | | | | | | | | | | | | | | | | This patch (as1563) removes a lot of duplicated code by moving the EHCI controller suspend/resume routines into the core driver, where the various platform drivers can invoke them as needed. Not only does this simplify these platform drivers, this also makes it easier for other platform drivers to add suspend/resume support in the future. Note: The patch does not touch the ehci-fsl.c file, because its approach to suspend and resume is so different from all the others. It will have to be handled specially by its maintainer. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: phy: fix return value check of usb_get_phyKishon Vijay Abraham I2012-07-021-1/+1
| | | | | | | | | usb_get_phy will return -ENODEV if it's not able to find the phy. Hence fixed all the callers of usb_get_phy to check for this error condition instead of relying on a non-zero value as success condition. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: otg: support for multiple transceivers by a single controllerKishon Vijay Abraham I2012-06-251-1/+1
| | | | | | | | | | | Add a linked list for keeping multiple PHY instances with different types so that we can have separate USB2 and USB3 PHYs on one single board. _get_phy_ has been changed so that the controller gets the transceiver by type. _remove_phy_ has been added to let the phy be removed from the phy list. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: otg: utils: rename function name in OTG utilsKishon Vijay Abraham I2012-06-251-3/+3
| | | | | | | | | _transceiver() in otg.c is replaced with _phy. usb_set_transceiver is replaced with usb_add_phy to make it similar to other usb standard function names like usb_add_hcd. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: otg: Convert all users to pass struct usb_otg for OTG functionsHeikki Krogerus2012-02-271-2/+2
| | | | | | | | | | | | | | | | | | | | This changes the otg functions so that they receive struct otg instead of struct usb_phy as parameter and converts all users of these functions to pass the otg member of their usb_phy. Includes fixes to IMX code from Sascha Hauer. [ balbi@ti.com : fixed a compile warning on ehci-mv.c ] Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Acked-by: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: Convert all users to new usb_phyHeikki Krogerus2012-02-271-7/+7
| | | | | | | | | | | | | | | Use the new usb_phy_* functions with transceiver operations instead of the old otg functions. Includes fixes from Sascha Hauer. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Acked-by: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: otg: Rename otg_transceiver to usb_phyHeikki Krogerus2012-02-131-1/+1
| | | | | | | | | | | | | | | | This is the first step in separating USB transceivers from USB OTG utilities. Includes fixes to IMX code from Sascha Hauer. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Acked-by: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* ehci-msm : use ehci_setupMatthieu CASTET2011-07-081-19/+1
| | | | | | Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr> Tested-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: Support controllers with big endian capability regsJan Andersson2011-05-031-1/+1
| | | | | | | | | | | | | | | | The two first HC capability registers (CAPLENGTH and HCIVERSION) are defined as one 8-bit and one 16-bit register. Most HC implementations have selected to treat these registers as part of a 32-bit register, giving the same layout for both big and small endian systems. This patch adds a new quirk, big_endian_capbase, to support controllers with big endian register interfaces that treat HCIVERSION and CAPLENGTH as individual registers. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: Fix compiler warnings with MSM driverPavankumar Kondeti2011-02-251-1/+3
| | | | | | | | | | This patch fixes the following compile warnings drivers/usb/host/ehci-dbg.c:45: warning: 'dbg_hcs_params' defined but not used drivers/usb/host/ehci-dbg.c:89: warning: 'dbg_hcc_params' defined but not used Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: make ehci msm driver use ehci_run.Matthieu CASTET2011-02-171-87/+5
| | | | | | | Now that ehci_run don't call ehci_reset, we can use ehci_run. Signed-off-by: Matthieu CASTET <castet.matthieu@parrot.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: msm: Add support for power managementPavankumar Kondeti2010-12-101-1/+56
| | | | | | | | | Enable runtime PM and mark no_callbacks flag. OTG device, parent of HCD takes care of putting hardware into low power mode. Adjust port power wakeup flags during system suspend and resume. Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: Add MSM Host Controller driverPavankumar Kondeti2010-12-101-0/+290
This patch adds support for EHCI compliant HSUSB Host controller found on MSM chips. The root hub has a single port and TT is built into it. This driver depends on OTG driver for PHY initialization, clock management and powering up VBUS. Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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