There are no references to 'pclk_src_name' in plaform code,
so it is unused.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use enum usb_dr_mode and drop default usb_dr_mode from platform data.
USB DT bindings states: dr_mode: "...In case this attribute isn't
passed via DT, USB DRD controllers should default to OTG...",
so remove redundand field.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This fixes following:
WARNING: quoted string split across lines
WARNING: Prefer seq_puts to seq_printf
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Whether regulators are available or not is checked at driver
probe. If they are not available driver will refuse to load,
so no need to check them again.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Move memory, regulators, clocks and irq allocation to
devm_* variants. Properly check for valid clk handles.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Using platform_driver_probe() prevent driver from requesting
probe deferral. Fix this.
While at that, also switch to module_platform_driver() and
remove __init annotation from probe().
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Eliminating global variables allows driver to handle multiple
device instances.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Controller could be found on APQ and MSM platforms,
make configuration description more generic.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The usb phy driver for mv_u3d got added in v3.7 through commit
a67e76ac90 ("usb: phy: mv_u3d: Add usb phy driver for mv_u3d"). It
then depended on USB_MV_U3D. And that symbol depended
on CPU_MMP3 at that time. But CPU_MMP3 has never been part of the tree.
This means that this drive was unbuildable when it was added.
In commit 60630c2eab ("usb: gadget: mv_u3d: drop ARCH dependency")
MV_U3D_PHY was made depended directly on CPU_MMP3. That kept it
unbuildable, of course.
Remove this driver. It can be re-added once its dependencies are part of
the tree.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch exports symbol of otg_statemachine for kernel module
can use it.
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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"
- add a_wait_vrise to a_wait_vfall
- update condition from a_wait_vrise to a_wait_bcon
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
it's now very easy to return a platform_device pointer
and have the caller pass it as argument when calling
usb_phy_generic_unregister().
Signed-off-by: Felipe Balbi <balbi@ti.com>
no functional changes, just renaming the function
in order to make it slightly clearer what it should
be used for, also matching the driver name.
Signed-off-by: Felipe Balbi <balbi@ti.com>
We only support GPL drivers in the USB Gadget Framework,
it sounds correct to make all exported symbols GPL too.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Tests have shown that when a power-up transition is followed by other
PHY operations too quickly, the USB port appears dead. Waiting 1ms fixes
this problem.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: stable@vger.kernel.org [3.14]
Signed-off-by: Felipe Balbi <balbi@ti.com>
In case we found a matching USB PHY in usb_get_phy() but the call to
try_module_get() fails, we shouldn't return a (probably soon dangling)
pointer but an ERR_PTR instead.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add new ulpi IDs which are available on Xilinx Zynq boards.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.
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Merge tag 'for_3.15' of 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.
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>
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>
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Merge tag 'usb-for-v3.15' of 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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
It is needed by imx6 SoC series, but not for imx23 and imx28.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The probe() method has the 'dev' local variable declared and used but strangely
not in all cases where it should be...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Both the PM_RUNTIME and PM_SLEEP callbacks call into the common
msm_otg_{suspend,resume} routines, however these routines are only being
built when CONFIG_PM_SLEEP. In addition, msm_otg_{suspend,resume} also
depends on msm_hsusb_config_vddcx(), which is only built when
CONFIG_PM_SLEEP.
Fix the CONFIG_PM_RUNTIME, !CONFIG_PM_SLEEP case by changing the
preprocessor conditional, and moving msm_hsusb_config_vddcx().
While we're here, eliminate the CONFIG_PM conditional for setting
up the dev_pm_ops.
This address the following errors Russell King has hit doing randconfig
builds:
drivers/usb/phy/phy-msm-usb.c: In function 'msm_otg_runtime_suspend':
drivers/usb/phy/phy-msm-usb.c:1691:2: error: implicit declaration of function 'msm_otg_suspend'
drivers/usb/phy/phy-msm-usb.c: In function 'msm_otg_runtime_resume':
drivers/usb/phy/phy-msm-usb.c:1699:2: error: implicit declaration of function 'msm_otg_resume'
Cc: Ivan T. Ivanov <iivanov@mm-sol.com>
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Free "motog" on error. This is more to appease the static checkers than
a real worry.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
the PHY layer is supposed to be optional,
considering some PHY have no control bus
for SW to poke around.
After commit 1ae5799 (usb: hcd: Initialize
USB phy if needed) any HCD which didn't provide
a PHY driver would emit annoying error messages.
In this patch we're decreasing those messages
to debugging only and we also add a PHY prefix
or use dev_dbg so we know where they're coming from.
Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Updates of SoC-near drivers and other driver updates that makes more sense to
take through our tree.
The largest part of this is a conversion of device registration for some
renesas shmobile/sh devices over to use resources. This has required
coordination with the corresponding arch/sh changes, and we've agreed
to merge the arch/sh changes through our tree.
Added in this branch is support for Trusted Foundations secure firmware,
which is what is used on many of the commercial Nvidia Tegra products
that are in the market, including the Nvidia Shield. The code is local
to arch/arm at this time since it's uncertain whether it will be shared
with arm64 longer-term, if needed we will refactor later.
A couple of new RTC drivers used on ARM boards, merged through our tree
on request by the RTC maintainer.
... plus a bunch of smaller updates across the board, gpio conversions
for davinci, etc.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM driver updates from Olof Johansson:
"Updates of SoC-near drivers and other driver updates that makes more
sense to take through our tree.
The largest part of this is a conversion of device registration for
some renesas shmobile/sh devices over to use resources. This has
required coordination with the corresponding arch/sh changes, and
we've agreed to merge the arch/sh changes through our tree.
Added in this branch is support for Trusted Foundations secure
firmware, which is what is used on many of the commercial Nvidia Tegra
products that are in the market, including the Nvidia Shield. The
code is local to arch/arm at this time since it's uncertain whether it
will be shared with arm64 longer-term, if needed we will refactor
later.
A couple of new RTC drivers used on ARM boards, merged through our
tree on request by the RTC maintainer.
... plus a bunch of smaller updates across the board, gpio conversions
for davinci, etc"
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
watchdog: davinci: rename platform driver to davinci-wdt
tty: serial: Limit msm_serial_hs driver to platforms that use it
mmc: msm_sdcc: Limit driver to platforms that use it
usb: phy: msm: Move mach dependent code to platform data
clk: versatile: fixup IM-PD1 clock implementation
clk: versatile: pass a name to ICST clock provider
ARM: integrator: pass parent IRQ to the SIC
irqchip: versatile FPGA: support cascaded interrupts from DT
gpio: davinci: don't create irq_domain in case of unbanked irqs
gpio: davinci: use chained_irq_enter/chained_irq_exit API
gpio: davinci: add OF support
gpio: davinci: remove unused variable intc_irq_num
gpio: davinci: convert to use irqdomain support.
gpio: introduce GPIO_DAVINCI kconfig option
gpio: davinci: get rid of DAVINCI_N_GPIO
gpio: davinci: use {readl|writel}_relaxed() instead of __raw_*
serial: sh-sci: Add OF support
serial: sh-sci: Add device tree bindings documentation
serial: sh-sci: Remove platform data mapbase and irqs fields
serial: sh-sci: Remove platform data scbrr_algo_id field
...
* qcom/drivers:
tty: serial: Limit msm_serial_hs driver to platforms that use it
mmc: msm_sdcc: Limit driver to platforms that use it
usb: phy: msm: Move mach dependent code to platform data
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch fix compilation error when driver is compiled
in multi-platform builds.
drivers/built-in.o: In function `msm_otg_link_clk_reset':
./drivers/usb/phy/phy-msm-usb.c:314: undefined reference to `clk_reset'
./drivers/usb/phy/phy-msm-usb.c:318: undefined reference to `clk_reset'
Use platform data supplied reset handlers and adjust error
messages reported when reset sequence fail.
This is an intermediate step before adding support for reset
framework and newer targets.
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>. Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This pull request is quite extensive, containing
105 non-merge commits. Because of that, we describe
the changes in sections below:
New drivers:
- Keystone PHY driver and DWC3 Glue Layer
- Aeroflex Gaisler GRUSBDC
- Tahvo PHY driver for N770
- JZ4740 MUSB gluer Layer
- Broadcom PHY Driver
Important new features:
- MUSB DSPS learned about suspend/resume
- New quirk_ep_out_aligned_size flag added to struct usb_gadget
- DWC3 initializes the new quirk flag so gadget drivers can use it.
- AM335x PHY Driver learns about remote wakeup
- Renesas USBHS now requests DMA Engine only once
- s3c-hsotg is now re-used on Broadcom devices
- USB PHY layer now makes sure to initialize the notifier for all
drivers
- omap-control learned about TI's new AM437x devices
- few other usb gadget/function drivers learned about the new
configfs-based binding.
Misc Fixes and Clean Ups:
- Several sparse fixes all over the place
- Removal of redundant of_match_ptr()
- r-car gen2 phy now uses usb_add_phy_dev()
- removal of DEFINE_PCI_DEVICE_TABLE() from a few drivers
- conversion to clk_prepare/clk_unprepare on r8a66597-udc
- some randconfig errors and build warnings were fixed
- removal of unnecessary lock on dwc3-omap.c
Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: changes for v3.14 merge window
This pull request is quite extensive, containing
105 non-merge commits. Because of that, we describe
the changes in sections below:
New drivers:
- Keystone PHY driver and DWC3 Glue Layer
- Aeroflex Gaisler GRUSBDC
- Tahvo PHY driver for N770
- JZ4740 MUSB gluer Layer
- Broadcom PHY Driver
Important new features:
- MUSB DSPS learned about suspend/resume
- New quirk_ep_out_aligned_size flag added to struct usb_gadget
- DWC3 initializes the new quirk flag so gadget drivers can use it.
- AM335x PHY Driver learns about remote wakeup
- Renesas USBHS now requests DMA Engine only once
- s3c-hsotg is now re-used on Broadcom devices
- USB PHY layer now makes sure to initialize the notifier for all
drivers
- omap-control learned about TI's new AM437x devices
- few other usb gadget/function drivers learned about the new
configfs-based binding.
Misc Fixes and Clean Ups:
- Several sparse fixes all over the place
- Removal of redundant of_match_ptr()
- r-car gen2 phy now uses usb_add_phy_dev()
- removal of DEFINE_PCI_DEVICE_TABLE() from a few drivers
- conversion to clk_prepare/clk_unprepare on r8a66597-udc
- some randconfig errors and build warnings were fixed
- removal of unnecessary lock on dwc3-omap.c
Signed-of-by: Felipe Balbi <balbi@ti.com>
Remove unneeded error handling on the result of a call
to platform_get_resource() when the value is passed to
devm_ioremap_resource().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'v3.13-rc5' into next
Linux 3.13-rc5
* tag 'v3.13-rc5': (231 commits)
Linux 3.13-rc5
aio: clean up and fix aio_setup_ring page mapping
aio/migratepages: make aio migrate pages sane
aio: fix kioctx leak introduced by "aio: Fix a trinity splat"
Don't set the INITRD_COMPRESS environment variable automatically
mm: fix build of split ptlock code
pstore: Don't allow high traffic options on fragile devices
mm: do not allocate page->ptl dynamically, if spinlock_t fits to long
mm: page_alloc: revert NUMA aspect of fair allocation policy
Revert "mm: page_alloc: exclude unreclaimable allocations from zone fairness policy"
mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
qla2xxx: Fix scsi_host leak on qlt_lport_register callback failure
target: Remove extra percpu_ref_init
arm64: ptrace: avoid using HW_BREAKPOINT_EMPTY for disabled events
ARC: Allow conditional multiple inclusion of uapi/asm/unistd.h
target/file: Update hw_max_sectors based on current block_size
iser-target: Move INIT_WORK setup into isert_create_device_ib_res
iscsi-target: Fix incorrect np->np_thread NULL assignment
mm/hugetlb: check for pte NULL pointer in __page_check_address()
fix build with make 3.80
...
Conflicts:
drivers/usb/phy/Kconfig
Some module names are not up to date in Kconfig help texts. Fix that.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
phy-isp1301-omap produces the following smatch warnings:
drivers/usb/phy/phy-isp1301-omap.c:1280 isp1301_set_host() warn: variable dereferenced before check 'otg' (see line 1278)
drivers/usb/phy/phy-isp1301-omap.c:1336 isp1301_set_peripheral() warn: variable dereferenced before check 'otg' (see line 1334)
drivers/usb/phy/phy-isp1301-omap.c:1417 isp1301_start_srp() warn: variable dereferenced before check 'otg' (see line 1414)
drivers/usb/phy/phy-isp1301-omap.c:1445 isp1301_start_hnp() warn: variable dereferenced before check 'otg' (see line 1442)
Fix by deleting bogus NULL pointer checks. The USB framework will always
call us with a valid OTG pointer.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
phy-tahvo introduced the following smatch warnings:
drivers/usb/phy/phy-tahvo.c:203 tahvo_usb_set_host() warn: variable dereferenced before check 'otg' (see line 199)
drivers/usb/phy/phy-tahvo.c:235 tahvo_usb_set_peripheral() warn: variable dereferenced before check 'otg' (see line 231)
Fix by deleting bogus NULL pointer checks. The USB framework will always
call us with a valid OTG pointer.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Silences the below warning:
WARNING: sizeof *twl should be sizeof(*twl)
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Local symbols appearing only in this file are made static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
'keystone_usbphy_ids' is always compiled in. Hence the
helper macro is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Mutex obtained at the beginning of the function should
be released at the end to avoid double locking.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This adds omap control module support for USBSS in AM437x SoC.
Update DT binding information to reflect these changes.
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Include header file drivers/usb/phy/am35x-phy-control.h in
phy/phy-am335x-control.c because function am335x_get_phy_control() has
its prototype declaration in drivers/usb/phy/am35x-phy-control.h.
Also, remove definition of structure phy_control because it is already
defined in the included header.
This eliminates the following warning in phy/phy-am335x-control.c:
drivers/usb/phy/phy-am335x-control.c:114:21: warning: no previous prototype for ‘am335x_get_phy_control’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
USB remote wakeup using PHY wakeup is supported only in standby mode.
Enabling the PHY_WKUP will break DS0 mode of system suspend.
If the same is enabled while entering DS0, AM33xx never stays in DS0,
it returns immediately from DS0. By default make the PHY wakeup
disabled, using sysfs entry enable the same manually to get
the remote wakeup working from standby.
echo enabled > /sys/bus/platform/device/<usb phy id>/power/wakeup
This will enable the PHY wakeup while going to standby.
PHY wakeup feature is required to wakeup the system from standby
state. Since AM33xx has a bug in which PHY wakeup should not
be enabled while entering DS0, disable the same by default.
A user wishing to use USB wakeup from standby mode need to enable
the same using the sysfs entries.
Also remove am335x_phy_runtime_(suspend/resume) this driver doesnot really
enable/disable the clocks to the PHY.
Add am335x_phy_(suspend/resume) and use the same for enabling the PHY_WKUP.
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'v3.13-rc4' into next
Linux 3.13-rc4
* tag 'v3.13-rc4': (1001 commits)
Linux 3.13-rc4
null_blk: mem garbage on NUMA systems during init
radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()
Revert "selinux: consider filesystem subtype in policies"
igb: Fix for issue where values could be too high for udelay function.
i40e: fix null dereference
ARM: fix asm/memory.h build error
dm array: fix a reference counting bug in shadow_ablock
dm space map: disallow decrementing a reference count below zero
mm: memcg: do not allow task about to OOM kill to bypass the limit
mm: memcg: fix race condition between memcg teardown and swapin
thp: move preallocated PTE page table on move_huge_pmd()
mfd/rtc: s5m: fix register updating by adding regmap for RTC
rtc: s5m: enable IRQ wake during suspend
rtc: s5m: limit endless loop waiting for register update
rtc: s5m: fix unsuccesful IRQ request during probe
drivers/rtc/rtc-s5m.c: fix info->rtc assignment
include/linux/kernel.h: make might_fault() a nop for !MMU
drivers/rtc/rtc-at91rm9200.c: correct alarm over day/month wrap
procfs: also fix proc_reg_get_unmapped_area() for !MMU case
...
Signed-off-by: Felipe Balbi <balbi@ti.com>
both isp1301-omap and fsl_usb2_otg drivers
depend on usb_bus_start_enum() which is only
defined if CONFIG_USB != n. There is a problem,
however, where both those drivers could be
statically linked, while CONFIG_USB=m.
Fix the problem by fixing driver dependency.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We need to initialize the notifer before use it.
So lets initialize it when add a new phy device to
reduce the code redundancy.
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add Keystone platform USB PHY driver support. Current main purpose
of this driver is to enable the PHY reference clock gate on the
Keystone SoC. Otherwise it is a nop PHY.
[ balbi@ti.com : add COMPILE_TEST as a possible dependency
make sure drvdata is initialized before adding PHY ]
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use usb_add_phy_dev instead of usb_add_phy, so that devices can
be bound to the phy. This is needed to set up USB phy for
some internal PCI USB host controllers on R-Car Gen2.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Individual controller driver has different requirement for wakeup
setting, so move it from core to itself. In order to align with
current etting the default wakeup setting is enabled (except for
chipidea host).
Pass compile test with below commands:
make O=outout/all allmodconfig
make -j$CPU_NUM O=outout/all drivers/usb
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add Tahvo USB transceiver driver.
Based on old code from linux-omap tree. The original driver was written
by Juha Yrjölä, Tony Lindgren, and Timo Teräs.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Transceivers need to manage OTG controller state on OMAP1 to enable
switching between peripheral and host modes. Provide a driver for that.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: phy-tegra-usb.c: wrong pointer check for remap UTMI
A wrong pointer was used to test the result of devm_ioremap()
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch removes dependency on Freescale USB UTG Transceiver
driver and makes OTG FSM implementation selectable.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Other USB drivers may want to use OTG final state machine
implementation, so make this header available for them.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
OTG Final State Machine calls functions which may sleep.
For example, start_gadget callback implementation can use
usb_gadget_vbus_connect(), whose context: can sleep.
If so, mutex should be used instead of spinlock.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
if this header is included twice, we would have
redefinition build errors. Fix this.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
this header uses spinlocks and errno values, so
we must include <linux/spinlock.h> and <linux/errno.h>
to avoid build errors.
Signed-off-by: Felipe Balbi <balbi@ti.com>
"ret" needs to be signed for the error handling to work.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
In case of error, the function platform_device_register_simple() returns
ERR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
We need to set mxs_phy rather as the platform drvdata so that we can get
the correct mxs_phy in mxs_phy_remove().
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit bd27fa44e1 (usb: phy: generic:
Don't use regulator framework for RESET line) introduced regression: All
users of usb_nop_xceiv_register() will fail because there is no platform
data and the default reset GPIO is 0 which is a valid GPIO. Fix that.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
instead of having each user of generic phy find
out about its own resources and pass it to the
core layer, have th core layer itself figure that
out. It's as simple as moving a piece of code
around. This fixes a big regression caused during
the merge window where am335x-based platforms
wouldn't be able to probe their PHY driver.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit [4d175f34: usb: phy: nop: Defer clock prepare until PHY init]
removed a goto reaching behind a “return ret” at the end of the function
thus removing the only possible way that statement could be reached, and
so rendering it a dead code. This commit cleans it up by removing said
dead code.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch removes limitation when only one PHY of specific type
could be used.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Final conversions to configfs for mass storage, acm_ms, and
multi gadgets.
MUSB should now work out of the box on AM335x-based boards
(beagle bone white and black) with DMA thanks to Sebastian's
work.
We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/
by selecting CONFIG_USB_GADGET_VERBOSE.
s3c-hsotg got quite a few non-critical fixes but also learned
a few new tricks (isochronous transfers, multi count support).
The Marvel USB3 Controller driver got a memory leak fix.
devm_usb_get_phy() learned not to return NULL, ever.
Other than these patches, we have the usual set of cleanups
ranging from removal of unnecessary *_set_drvdata() to using
SIMPLE_DEV_PM_OPS.
Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.13
Final conversions to configfs for mass storage, acm_ms, and
multi gadgets.
MUSB should now work out of the box on AM335x-based boards
(beagle bone white and black) with DMA thanks to Sebastian's
work.
We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/
by selecting CONFIG_USB_GADGET_VERBOSE.
s3c-hsotg got quite a few non-critical fixes but also learned
a few new tricks (isochronous transfers, multi count support).
The Marvel USB3 Controller driver got a memory leak fix.
devm_usb_get_phy() learned not to return NULL, ever.
Other than these patches, we have the usual set of cleanups
ranging from removal of unnecessary *_set_drvdata() to using
SIMPLE_DEV_PM_OPS.
Signed-of-by: Felipe Balbi <balbi@ti.com>
'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
These aren't necessary after switch and if blocks.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The callers are expecting an ERR_PTR value in case
of an error. Change he code to return with an encoded
-ENOMEM value in the case of a failed devres_alloc call.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This adds RCAR Gen2 USB phy support. The driver configures
USB channels 0/2 which are shared between PCI USB hosts and
USBHS/USBSS devices. It also controls internal USBHS phy.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Reorder variables in struct otg_fsm as they appear in OTG and EH
supplement to USB2.0.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Several input/output variables missed in current FSM implementation.
This patch adds and makes use of them as specified in OTG and EH
supplement to USB2.0.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
In accordance with OTG and EH supplement, the correct name
of the FSM input is b_ssend_srp.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Mark informative variables with suffix '_inf' to distinguish
them from other non-informative variables with the same name.
If such non-informative varialbes were missed, they are created.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
a_bidl_adis_tmr and a_wait_vfall_tmr OTG timers missed in
current FSM implementation. This patch adds and makes use
of the timers as speicfied in OTG and EH supplement to USB2.0.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Get rid of using OTG driver specific timers by passing timer
type to corresponding callbacks.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch implements missed helper functions for start_gadget() and
start_host() OTG FSM callbacks.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Existence of callback must be checked to avoid NULL pointer
dereferncing.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
struct otg_fsm may be embedded to device's context structure.
The callbacks may require pointer to struct otg_fsm to obtain
necessary data for its operation (example: regulator reference
for drv_vbus()).
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Modelling the RESET line as a regulator supply wasn't a good idea
as it kind of abuses the regulator framework and also makes adaptation
code more complex.
Instead, manage the RESET gpio line directly in the driver. Update
the device tree binding information.
This also makes us easy to migrate to a dedicated GPIO RESET controller
whenever it becomes available.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This function was preventing us from supporting multiple
instances. Get rid of it. Since we support DT boots only,
users can get the control device phandle from the DT node.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.
As we don't support non-DT boot, we just bail out on probe
if device node is not present.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for new device types and in the process rid of "ti,type"
device tree property. The correct type of device will be determined
from the compatible string instead.
Introduce a compatible string for each device type. At the moment
we support 4 types OTGHS, USB2, PIPE3 (e.g. USB3) and DRA7USB2.
Update DT binding information to reflect these changes.
Also get rid of omap_control_usb3_phy_power(). Just one function
i.e. omap_control_usb_phy_power() will now take care of all PHY types.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
omap-control device is present from OMAP4 onwards which
support device tree boots only. So get rid of platform data.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This is based on George Cherian's patch which added power & wakeup
support to am335x and does no longer apply since I took some if the code
apart in favor of the multi instance support.
This compiles and I boots and later it detects a device after I plug it in :)
Could somebody please test it so it does what it should?
Cc: George Cherian <george.cherian@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Since we only enable the PHY clock on init and the PHY init and shutdown
does not occur in atomitc context there is no need to prepare the clock
before it is enabled. Move the clk_prepare() operations to go along
with the enables, allowing the clock to be fully idle when not in use.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Used the generic PHY framework API to create the PHY. For powering on
and powering off the PHY, power_on and power_off ops are used. Once the
MUSB OMAP glue is adapted to the new framework, the suspend and resume
ops of usb phy library will be removed. Also twl4030-usb driver is moved
to drivers/phy/.
However using the old usb phy library cannot be completely removed
because otg is intertwined with phy and moving to the new
framework completely will break otg. Once we have a separate otg state machine,
we can get rid of the usb phy library.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Used the generic PHY framework API to create the PHY. Now the power off and
power on are done in omap_usb_power_off and omap_usb_power_on respectively.
The omap-usb2 driver is also moved to driver/phy.
However using the old USB PHY library cannot be completely removed
because OTG is intertwined with PHY and moving to the new framework
will break OTG. Once we have a separate OTG state machine, we
can get rid of the USB PHY library.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.
Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
and 04bf3011 ("regulator: Support driver probe deferral") this driver
might return -EPROBE_DEFER if a gpio_request or regulator_get fails.
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The function returns a pointer. Hence return NULL instead of 0.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &of->dev,
so we can directly pass a struct platform_device.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"ret" needs to be signed for the error handling to work.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
...
drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1
This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
...
In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1
Fix both issues.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
Randy reported this
|drivers/usb/phy/phy-am335x-control.c:45:3: error: implicit declaration
|of function '__WARN' [-Werror=implicit-function-declaration]
and left it as an excercice to figure out that this happens only with
CONFIG_BUG=n. As a fix I replace it with WARN_ON(). And there is a space
before return so fix this, too.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
All patches here have been pending on linux-usb
and sitting in linux-next for a while now.
The biggest things in this tag are:
DWC3 learned proper usage of threaded IRQ
handlers and now we spend very little time
in hardirq context.
MUSB now has proper support for BeagleBone and
Beaglebone Black.
Tegra's USB support also got quite a bit of love
and is learning to use PHY layer and generic DT
attributes.
Other than that, the usual pack of cleanups and
non-critical fixes follow.
Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.12 merge window
All patches here have been pending on linux-usb
and sitting in linux-next for a while now.
The biggest things in this tag are:
DWC3 learned proper usage of threaded IRQ
handlers and now we spend very little time
in hardirq context.
MUSB now has proper support for BeagleBone and
Beaglebone Black.
Tegra's USB support also got quite a bit of love
and is learning to use PHY layer and generic DT
attributes.
Other than that, the usual pack of cleanups and
non-critical fixes follow.
Signed-of-by: Felipe Balbi <balbi@ti.com>
Conflicts:
drivers/usb/gadget/udc-core.c
drivers/usb/host/ehci-tegra.c
drivers/usb/musb/omap2430.c
drivers/usb/musb/tusb6010.c
Stephen Rothwell reported that this driver does not compile on PowerPC
due to this missing include. One could argue why this driver is enabled
on PowerPC in the first place but it sure isn't wrong to include headers
for used function instead of to rely that they sneak in.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The Tegra30 TRM recommends configuration of certain PHY parameters for
optimal quality. Program the following registers based on device tree
parameters:
- UTMIP_XCVR_HSSLEW: HS slew rate control.
- UTMIP_HSSQUELCH_LEVEL: HS squelch detector level
- UTMIP_HSDISCON_LEVEL: HS disconnect detector level.
These registers exist in Tegra20, but programming them hasn't been
necessary, so these parameters won't be set on Tegra20 to keep the
device trees backward compatible.
Additionally, the UTMIP_XCVR_SETUP parameter can be set from fuses
instead of a software-programmed value, as the optimal value can
vary between invidual boards. The boolean property
nvidia,xcvr-setup-use-fuses can be used to enable this behaviour.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The Tegra30 USB PHY is a bit different than the Tegra20 PHY:
- The EHCI controller supports the HOSTPC register extension, and some
of the fields that the PHY needs to modify (PHCD and PTS) have moved
to the new HOSTPC register.
- Some of the UTMI PLL configuration registers have moved from the USB
register space to the Clock-And-Reset controller space. In Tegra30
the clock driver is responsible for configuring the UTMI PLL.
- The USBMODE register must be explicitly written to enter host mode.
- Certain PHY parameters need to be programmed for optimal signal
quality. Support for this will be added in the next patch.
The new tegra_phy_soc_config structure is added to describe the
differences between the SoCs.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Some of the PHY parameters are not set according to the TRMs:
- UTMIP_FS_PREABMLE_J should be set, not cleared
- UTMIP_XCVR_LSBIAS_SEL should be cleared, not set
- UTMIP_PD_CHRG should be set in host mode and cleared in device mode
- UTMIP_XCVR_SETUP is a two-part field; the upper bits were not set
properly
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This driver is a redo of my earlier attempt. It uses parts of the
generic PHY driver and uses the new control driver for the register
the phy needs to power on/off the phy. It also enables easy access for
the wakeup register which is not yet implemented.
The difference between the omap attempt is:
- no static holding variable
- one global visible function which exports a struct with callbacks to
access the "control" registers.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch exports the mostly generic functions so they can be used from
other phy driver instead of duplicating the code.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The "nop" driver isn't a do-nothing-stub but supports a couple functions
like clock on/off or is able to use a voltage regulator. This patch
simply renames the driver to "generic" since it is easy possible to
extend it by a simple function istead of writing a complete driver.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
When platform_driver_probe() is not used, bind/unbind via sysfs
is enabled. Thus, __exit_p annotation should be removed from
remove().
Also, mv_otg_remove() is staticized, because this function is
used only in this file. Fix the following sparse warning:
drivers/usb/phy/phy-mv-usb.c:656:5: warning: symbol 'mv_otg_remove' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
mv_u3d_phy_shutdown() is used only in this file.
Fix the following sparse warning:
drivers/usb/phy/phy-mv-u3d-usb.c:85:6: warning: symbol 'mv_u3d_phy_shutdown' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use switch() instead of if-else when checking for the PHY type.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use the new of_usb_get_dr_mode helper function for parsing dr_mode
from the device tree. Also replace the usage of the custom
tegra_usb_phy_mode enum with the standard enum.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use the new of_usb_get_phy_mode helper function for parsing phy_type
from the device tree.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The Tegra EHCI driver is no longer using these custom functions, so they
can be removed.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Register the Tegra PHY device instances with the PHY subsystem so that
the Tegra EHCI driver can locate a PHY via the standard APIs.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
struct usb_phy already has a field for the device pointer, so this
unnecessary field can be removed.
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The tegra ehci driver has enabled USB vbus regulators directly using
GPIOs and the device tree attribute nvidia,vbus-gpio. This is ugly
and causes error messages on boot when both the regulator driver
and the ehci driver want access to the same GPIO.
After this patch, usb vbus regulators for tegra usb phy devices are specified
with the device tree attribute vbus-supply = <&x> where x is a regulator defined
in the device tree. The old nvidia,vbus-gpio property is no longer supported.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
UTMIP parameters used to be hardcoded into tables in the
PHY driver. This patch reads them from the device tree instead
in accordance with the phy-tegra-usb DT documentation.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Use a mapping table (dpll_map) to match the possible system clock rates
to the appropriate DPLL parameters.
Introduce a function "omap_usb3_get_dpll_params()" that will
return the matching DPLL parameters for the given clock rate.
Also, bail out on phy init if DPLL locking fails.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Convert PHY Drivers from menuconfig to menu so that the PHY drivers
can be explicitely selected by the controller drivers.
USB_PHY is no longer a user visible option. It is upto to the PHY
drivers to select it if needed. This patch does so for the existing
PHY drivers that use the USB_PHY library.
Doing so moves the USB_PHY and PHY driver selection problem from the
end user to the PHY and controller driver developer.
e.g.
Earlier, a controller driver (e.g. EHCI_OMAP) that needs to select
a PHY driver (e.g. NOP_PHY) couldn't do so because the PHY driver
depended on USB_PHY. Making the controller driver depend on USB_PHY
has a negative effect i.e. it becomes invisible to the user till
USB_PHY is enabled. Most end users will not familiar with this.
With this patch, the end user just needs to select the controller driver
needed for his/her platform without worrying about which PHY driver to
select.
Also update USB_EHCI_MSM, USB_LPC32XX and USB_OMAP to not depend
on USB_PHY any more. They can safely select the necessary PHY drivers.
[ balbi@ti.com : refreshed on top of my next branch. Changed bool
followed by default n into def_bool n ]
CC: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
stmp_reset_block() may fail, so let's check its return value and propagate it
in the case of error.
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
commit 57f6ce072e ("usb: phy:
add a new driver for usb3 phy") added the new Kconfig option
OMAP_USB3, but it had no dependencies whatsoever, and hence
became available across all arch/platforms.
Which presumably caused this to show up in x86 randconfig:
warning: (USB_MUSB_HDRC && OMAP_USB3) selects \
OMAP_CONTROL_USB which has unmet direct \
dependencies (USB_SUPPORT && ARCH_OMAP2PLUS)
Then commit 6992819feb ("usb: phy:
fix Kconfig warning") was added. However, this just deleted the
ARCH_OMAP2PLUS dependency from OMAP_CONTROL_USB, further
compounding the problem by opening up OMAP_CONTROL_USB to
all arch/platforms as well.
Earlier it was suggested[1] that we revert the change of 6992819feb
to restore the dependency, and add a same ARCH_OMAP2PLUS dependency
to the new OMAP_USB3 entry. However that was discouraged on the
grounds of people wanting the extra sanity compile testing on x86,
even though the driver could probably never be used there.
Now we have CONFIG_COMPILE_TEST, so developers who value the ability
to compile drivers on an architecture that it never can be used for
can have that, and people who want dependencies to shield them from
seeing options that aren't relevant to their platform get what they
want too.
Here we restore the dependency but couple it with COMPILE_TEST, in
order to achieve both of the above goals.
[1] https://patchwork.kernel.org/patch/2194511/
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Moiz Sonasath <m-sonasath@ti.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that no USB phy driver is using CONFIG_USB_DEBUG, remove it from the
Makefile.
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the in-kernel pr_debug() calls instead of trying to roll your own
DBG macro. This means the dynamic debugging calls now work here, and
there is no dependency on CONFIG_USB_DEBUG for the phy code anymore.
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Correction of the omap_usb3_dpll_params array when the sys_clk_rate is
20MHz.
Signed-off-by: Nikhil Devshatwar <nikhil.nd@ti.com>
Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The error message is common to both clk_get functions. Update it
accordingly.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
But we also have:
- Support for the TPS659038 PMIC from the palmas driver.
- Intel's Coleto Creek and Avoton SoCs support from the lpc_ich driver.
- RTL8411B support from the rtsx driver.
- More DT support for the Arizona, max8998, twl4030-power and the
ti_am335x_tsadc drivers.
- The SSBI driver move under MFD.
- A conversion to the devm_* API for most of the MFD drivers.
- The twl4030-power got split from twl-core into its own module.
- A major ti_am335x_adc cleanup, leading to a proper DT support.
- Our regular arizona and wm* updates and cleanups from the Wolfson
folks.
- A better error handling and initialization, and a regulator subdevice
addition for the 88pm80x driver.
- A bulk platform_set_drvdata() call removal that's no longer need since
commit 0998d063.
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Merge tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
Pull MFD update from Samuel Ortiz:
"For the 3.11 merge we only have one new MFD driver for the Kontron
PLD.
But we also have:
- Support for the TPS659038 PMIC from the palmas driver.
- Intel's Coleto Creek and Avoton SoCs support from the lpc_ich
driver.
- RTL8411B support from the rtsx driver.
- More DT support for the Arizona, max8998, twl4030-power and the
ti_am335x_tsadc drivers.
- The SSBI driver move under MFD.
- A conversion to the devm_* API for most of the MFD drivers.
- The twl4030-power got split from twl-core into its own module.
- A major ti_am335x_adc cleanup, leading to a proper DT support.
- Our regular arizona and wm* updates and cleanups from the Wolfson
folks.
- A better error handling and initialization, and a regulator
subdevice addition for the 88pm80x driver.
- A bulk platform_set_drvdata() call removal that's no longer need
since commit 0998d06310 ("device-core: Ensure drvdata = NULL when
no driver is bound")
* tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (102 commits)
mfd: sec: Provide max_register to regmap
mfd: wm8994: Remove duplicate check for active JACKDET
MAINTAINERS: Add include directory to MFD file patterns
mfd: sec: Remove fields not used since regmap conversion
watchdog: Kontron PLD watchdog timer driver
mfd: max8998: Add support for Device Tree
regulator: max8998: Use arrays for specifying voltages in platform data
mfd: max8998: Add irq domain support
regulator: palmas: Add TPS659038 support
mfd: Kontron PLD mfd driver
mfd: palmas: Add TPS659038 PMIC support
mfd: palmas: Add SMPS10_BOOST feature
mfd: palmas: Check if irq is valid
mfd: lpc_ich: iTCO_wdt patch for Intel Coleto Creek DeviceIDs
mfd: twl-core: Change TWL6025 references to TWL6032
mfd: davinci_voicecodec: Fix build breakage
mfd: vexpress: Make the driver optional for arm and arm64
mfd: htc-egpio: Use devm_ioremap_nocache() instead of ioremap_nocache()
mfd: davinci_voicecodec: Convert to use devm_* APIs
mfd: twl4030-power: Fix relocking on error
...
These are changes that arrived a little late before the merge
window or that have multiple dependencies on previous branches
so they did not fit into one of the earlier ones. There
are 10 branches merged here, a total of 39 non-merge commits.
Contents are a mixed bag for the above reasons:
* Two new SoC platforms: ST microelectronics stixxxx and
the TI 'Nspire' graphing calculator. These should have
been in the 'soc' branch but were a little late
* Support for the Exynos 5420 variant in mach-exynos,
which is based on the other exynos branches to avoid
conflicts.
* Various small changes for sh-mobile, ux500 and davinci
* Common clk support for MSM
Conflicts:
* In Kconfig.debug, various additions trivially conflict,
the list should be kept in alphabetical order when
resolving.
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Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late changes from Arnd Bergmann:
"These are changes that arrived a little late before the merge window
or that have multiple dependencies on previous branches so they did
not fit into one of the earlier ones. There are 10 branches merged
here, a total of 39 non-merge commits. Contents are a mixed bag for
the above reasons:
* Two new SoC platforms: ST microelectronics stixxxx and the TI
'Nspire' graphing calculator. These should have been in the 'soc'
branch but were a little late
* Support for the Exynos 5420 variant in mach-exynos, which is based
on the other exynos branches to avoid conflicts.
* Various small changes for sh-mobile, ux500 and davinci
* Common clk support for MSM"
* tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
ARM: ux500: bail out on alien cpus
ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins
serial: sh-sci: Initialise variables before access in sci_set_termios()
ARM: stih41x: Add B2020 board support
ARM: stih41x: Add B2000 board support
ARM: sti: Add DEBUG_LL console support
ARM: sti: Add STiH416 SOC support
ARM: sti: Add STiH415 SOC support
ARM: msm: Migrate to common clock framework
ARM: msm: Make proc_comm clock control into a platform driver
ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
ARM: msm: Remove clock-7x30.h include file
ARM: msm: Remove custom clk_set_{max,min}_rate() API
ARM: msm: Remove custom clk_set_flags() API
msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
msm: iommu: Convert to clk_prepare/unprepare
msm_sdcc: Convert to clk_prepare/unprepare
usb: otg: msm: Convert to clk_prepare/unprepare
msm_serial: Use devm_clk_get() and properly return errors
msm_serial: Convert to clk_prepare/unprepare
...
These changes are all to SoC-specific code, a total of 33 branches on
17 platforms were pulled into this. Like last time, Renesas sh-mobile
is now the platform with the most changes, followed by OMAP and EXYNOS.
Two new platforms, TI Keystone and Rockchips RK3xxx are added in
this branch, both containing almost no platform specific code at all,
since they are using generic subsystem interfaces for clocks, pinctrl,
interrupts etc. The device drivers are getting merged through the
respective subsystem maintainer trees.
One more SoC (u300) is now multiplatform capable and several others
(shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
towards that goal with this series but need more work.
Also noteworthy is the work on PCI here, which is traditionally part of
the SoC specific code. With the changes done by Thomas Petazzoni, we can
now more easily have PCI host controller drivers as loadable modules and
keep them separate from the platform code in drivers/pci/host. This has
already led to the discovery that three platforms (exynos, spear and imx)
are actually using an identical PCIe host controller and will be able
to share a driver once support for spear and imx is added.
Conflicts:
* asm/glue-proc.h has one CPU type getting added that conflicts
with another addition in 3.10-rc7
* Simple context changes in arch/arm/Makefile and arch/arm/Kconfig
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC specific changes from Arnd Bergmann:
"These changes are all to SoC-specific code, a total of 33 branches on
17 platforms were pulled into this. Like last time, Renesas sh-mobile
is now the platform with the most changes, followed by OMAP and
EXYNOS.
Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
branch, both containing almost no platform specific code at all, since
they are using generic subsystem interfaces for clocks, pinctrl,
interrupts etc. The device drivers are getting merged through the
respective subsystem maintainer trees.
One more SoC (u300) is now multiplatform capable and several others
(shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
towards that goal with this series but need more work.
Also noteworthy is the work on PCI here, which is traditionally part
of the SoC specific code. With the changes done by Thomas Petazzoni,
we can now more easily have PCI host controller drivers as loadable
modules and keep them separate from the platform code in
drivers/pci/host. This has already led to the discovery that three
platforms (exynos, spear and imx) are actually using an identical PCIe
host controller and will be able to share a driver once support for
spear and imx is added."
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
ARM: integrator: let pciv3 use mem/premem from device tree
ARM: integrator: set local side PCI addresses right
ARM: dts: Add pcie controller node for exynos5440-ssdk5440
ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
ARM: EXYNOS: Enable PCIe support for Exynos5440
pci: Add PCIe driver for Samsung Exynos
ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
ARM: keystone: Move CPU bringup code to dedicated asm file
ARM: multiplatform: always pick one CPU type
ARM: imx: select syscon for IMX6SL
ARM: keystone: select ARM_ERRATA_798181 only for SMP
ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
ARM: OMAP2+: AM43x: resolve SMP related build error
dmaengine: edma: enable build for AM33XX
ARM: edma: Add EDMA crossbar event mux support
ARM: edma: Add DT and runtime PM support to the private EDMA API
dmaengine: edma: Add TI EDMA device tree binding
arm: add basic support for Rockchip RK3066a boards
arm: add debug uarts for rockchip rk29xx and rk3xxx series
arm: Add basic clocks for Rockchip rk3066a SoCs
...
Per Stephen Boyd's coverletter:
Resending to collect higher level maintainer acks per Olof's request.
The plan is to push this patchset through MSM to the arm-soc tree.
This patchset moves the existing MSM clock code and affected drivers
to the common clock framework. A prerequisite of moving to the common
clock framework is to use clk_prepare() and clk_enable() so the first
few patches migrate drivers to that call (clk_prepare() is a no-op on
MSM right now). It also removes some custom clock APIs that MSM
provides and finally moves the proc_comm clock code to the common
struct clk.
This patch series will be used as the foundation of the MSM 8660/8960
clock code that I plan to send out after this series.
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Merge tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/late
From David Brown:
MSM clock updates for 3.11.
Per Stephen Boyd's coverletter:
Resending to collect higher level maintainer acks per Olof's request.
The plan is to push this patchset through MSM to the arm-soc tree.
This patchset moves the existing MSM clock code and affected drivers
to the common clock framework. A prerequisite of moving to the common
clock framework is to use clk_prepare() and clk_enable() so the first
few patches migrate drivers to that call (clk_prepare() is a no-op on
MSM right now). It also removes some custom clock APIs that MSM
provides and finally moves the proc_comm clock code to the common
struct clk.
This patch series will be used as the foundation of the MSM 8660/8960
clock code that I plan to send out after this series.
* tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
ARM: msm: Migrate to common clock framework
ARM: msm: Make proc_comm clock control into a platform driver
ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
ARM: msm: Remove clock-7x30.h include file
ARM: msm: Remove custom clk_set_{max,min}_rate() API
ARM: msm: Remove custom clk_set_flags() API
msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
msm: iommu: Convert to clk_prepare/unprepare
msm_sdcc: Convert to clk_prepare/unprepare
usb: otg: msm: Convert to clk_prepare/unprepare
msm_serial: Use devm_clk_get() and properly return errors
msm_serial: Convert to clk_prepare/unprepare
Acked-by: Chris Ball <cjb@laptop.org> # for msm_sdcc.c
Signed-off-by: Olof Johansson <olof@lixom.net>
Add calls to clk_prepare and unprepare so that MSM can migrate to
the common clock framework.
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
The TWL6025 was never released beyond sample form and was replaced by
the PhoenixLite range of chips - TWL6032. Change the references to
reference the TWL6032 class and name the registers to twl6032 in line with
an actual released chip name to avoid confusion.
Currently there are no users of TWL6025 in the code.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviwed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The previous text confused users by not describing the very common
(e.g. x86 PC) sitations where no PHY driver is necessary.
Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Tegra EHCI driver directly calls various functions in the Tegra USB
PHY driver. The reverse is also true; the PHY driver calls into the EHCI
driver. This is problematic when the two are built as modules.
The calls from the PHY to EHCI driver were originally added in commit
bbdabdb "usb: add APIs to access host registers from Tegra PHY", for the
following reasons:
1) The register being touched is an EHCI register, so logically only the
EHCI driver should touch it.
2) (1) implies that some locking may be needed to correctly implement the
r/m/w access to this shared register.
3) We were expecting to pass only the PHY register space to the Tegra PHY
driver, and hence it would not have access to touch the shared
registers.
To solve this, that commit added functions in the EHCI driver to touch the
shared register on behalf of the PHY driver.
In practice, we ended up not having any locking in the implementaiton of
those functions, and I've been led to believe this is safe. Equally, (3)
did not happen either. Hence, it is possible for the PHY driver to touch
the shared register directly.
Given that, this patch moves the code to touch the shared register back
into the PHY driver, to eliminate the module problems. If we actually
need locking or co-ordination in the future, I propose we put the lock
support into some pre-existing core module, or into a third separate
module, in order to avoid the circular dependencies.
I apologize for my contribution to code churn here.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When this file is built as a module, it needs a MODULE_LICENSE in order
to access many exported symbols.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In order to build a ULPI PHY driver as a module, this symbol needs to
be exported.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
[swarren, reworked Manjunath's patches to split them more logically]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds two little devicetree helper functions for determining the
dr_mode (host, peripheral, otg) and phy_type (utmi, ulpi,...) from
the devicetree.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 75096579c3 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: linux-usb@vger.kernel.org
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These updates are by Sergei Shtylyov to clean-up USB support
present for R8A7779/Marzen and then extend USB support coverage to
R8A7778/BOCK-W.
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Merge tag 'renesas-phy-rcar-usb-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
From Simon Horman:
Renesas USB updates for v3.11
These updates are by Sergei Shtylyov to clean-up USB support
present for R8A7779/Marzen and then extend USB support coverage to
R8A7778/BOCK-W.
* tag 'renesas-phy-rcar-usb-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: BOCK-W: add USB support
ARM: shmobile: r8a7778: add USB support
phy-rcar-usb: add R8A7778 support
phy-rcar-usb: handle platform data
ARM: shmobile: Marzen: pass platform data to USB PHY device
phy-rcar-usb: add platform data
phy-rcar-usb: correct base address
ARM: shmobile: r8a7779: remove USB PHY 2nd memory resource
phy-rcar-usb: remove EHCI internal buffer setup
ARM: shmobile: r8a7779: setup EHCI internal buffer
ehci-platform: add pre_setup() method to platform data
ARM: shmobile: Marzen: move USB EHCI, OHCI, and PHY devices to R8A7779 code
Conflicts:
arch/arm/mach-shmobile/board-marzen.c
arch/arm/mach-shmobile/setup-r8a7778.c
Signed-off-by: Olof Johansson <olof@lixom.net>
The driver currently only supports R8A7779 SoC. Compared to it, R8A7778 USB-PHY
has extra register range containing two high-speed signal quality characteristic
control registers which should be set up during USB-PHY startup depending on
whether a ferrite bead is in use or not. So, we now handle an optional second
memory range in the driver's probe method, add the 'ferrite_bead' field to the
driver's platform data, and add an extra (optional) step to the USB-PHY startup
routine which sets up the extended registers.
Also mark in the driver's Kconfig section that R8A7778 is now supported and
generally clarify that section, uppercasing the word "phy" and also changing
the module name that got lost in the big driver rename, while at it...
The patch has been tested on the Marzen and BOCK-W boards.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Set the USBPCTRL0 register from the passed platform data in rcar_usb_phy_init();
don't reset it to 0 in rcar_usb_phy_shutdown() anymore as that does not make
sense. Also, don't allow the driver's probe to succeed when the platform data
are not supplied with a device.
The patch has been tested on the Marzen and BOCK-W boards.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
The memory region that is used by the driver overlaps EHCI and OHCI register
regions for absolutely no reason now -- fix it by adding offset of 0x800 to
the base address, changing the register #define's accordingly. This has extra
positive effect that we now can use devm_ioremap_resource()...
Note that the driver and the SoC code have to be in one patch to keep the code
bisectable...
The patch has been tested on the Marzen board.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Now that the EHCI internal buffer setup is done by the platform code, we can
remove such code from this driver as it never really belonged here. We also
no longer need the 2nd memory region now (2nd EHCI controller is simply missing
in e.g. R8A7778 SoC).
The patch has been tested on the Marzen and BOCK-W boards.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Addition of the M and N recommended values for the USB3 PHY DPLL.
Sysclk for DRA7xx is 20MHz.
This yields:
Clk = 20MHz * M/(N+1) = 20MHz * 1000 /(7+1) = 2.5 Ghz
Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Registered Tegra USB PHY as a separate platform driver.
To synchronize host controller and PHY initialization, used deferred
probe mechanism. As PHY should be initialized before EHCI starts running,
deferred probe of Tegra EHCI driver till PHY probe gets completed.
Got rid of instance number based handling in host driver.
Made use of DT params to get the PHY Pad registers.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Check return values from all GPIO APIs and handle errors accordingly.
Remove the call to clk_disable_unprepare(); this function does not
prepare or enable the clock, so the error path should not disable or
unprepare it.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
As GPIO information is avail through DT, used it to get Tegra ULPI
reset GPIO number. Added a new member to tegra_usb_phy structure to
store this number.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Added a new PHY mode to support OTG.
Obtained Tegra USB PHY mode using DT property.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
In case if clk_get_sys fails, return correct error value provided by
the API.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
'nop_xceiv_dt_ids' is always compiled in. Hence use of
of_match_ptr is unnecessary.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch adds driver data for Exynos 4x12 USB 2.0 PHY.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
To remove unnecessary if statements, this patch introduces phy_enable
and phy_disable callbacks in driver data structure that implement
SoC-specific PHY initialization and deinitialization.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch extends driver data structure with set_isolation callback,
which allows to remove the need for checking for SoC type in a switch
statement.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This patch cleans up handling of reference clock rate in Samsung USB PHY
drivers. It is mostly a cosmetic change but improves error handling in
case of failing to get reference clock or invalid clock rate.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
There is no need to use devm_clk_get to get a clock that is being put
at the end of the function.
This patch changes the code getting reference clock to use clk_get
instead of useless in this case devm_clk_get.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Since phy-samsung-usb library can be used only by phy-samsung-usb2 and
phy-samsung-usb3 drivers, there is no need to give explicit control over
its Kconfig symbol.
This patch makes CONFIG_SAMSUNG_USBPHY symbol hidden and selected
implicitly by CONFIG_SAMSUNG_USB2PHY and CONFIG_SAMSUNG_USB3PHY.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add support for the ab9540 variant of the ab8500 family.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Avinash Kumar <avinash.kumar@stericsson.com>
Cc: Thirupathi Chippakurthy <thirupathi.chippakurthy@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add support for the ab8540 variant of the ab8500 family.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Avinash Kumar <avinash.kumar@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Introduce a "flags" field in "struct ab8500_usb" to allow controlling
driver features and quirks depending on ab8500 chip variant and
revision.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Move each chip's PHY tuning value set code to a separate function to
improve code readability.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add an initial platform_device_id table to the ab8500-usb driver to
allow probing additional variants of the ab8500 family chips.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The driver supports both ab8500 and ab8505, but the actual phy tuning
values logic sets ab8500 values:
if (!is_ab8500_2p0_or_earlier(ab->ab8500))
which is supposed to set values for ab8500, but incorrectly results true
for ab8505 too.
Fix this by adding an additional is_ab8500(ab->ab8500) check.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add an ab8500_usb_restart_phy() function called during probe to ensure
that the AB8500 USB phy is initialized properly even when a cable is
connected at probe time.
Without this fix subsequent host reconnections are not detected
properly.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Various non functional coding style fixes on ux500_dma.c and
phy-ab8500-usb.c drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Commit 84ebc10294 (USB: remove
CONFIG_USB_SUSPEND option) failed to remove all of the usages of
USB_SUSPEND throughout the kernel. This patch (as1677) removes the
remaining instances of that symbol.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The mxs-phy is missing the phy.type property, why the usb_get_phy helper
function won't be able to find it. This patch adds this missing property.
Signed-off-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
The Kconfig symbol USB_OTG_UTILS was removed in the v3.10 merge window,
in commit fd89149875 ("usb: phy: remove CONFIG_USB_OTG_UTILS"). But that
symbol popped up again in a few places. Remove it there too.
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Upon initialisation (driver probe) a NULL pointer exception
is triggered. This is due to lack of initialisation of
device field in phy structure, which is used by phy
framework in usb_get_phy().
Fix it by initialising the device field.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
