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It possible to allocate the tty port number within the "instance"
structure of the function and there is no need to expose this
information within the gadget and therefore it is removed here.
This patch converts only f_acm and all its users. The other gadgets will
follow once the function is converted to the function interface.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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the u_ether.c file has a global variable named the_dev which keeps a
pointer to the network device after it has been created via
gether_setup_name(). It is only used internally by u_ether. This patches
moves the variable to its users and passes it via the port.ioport where
it is saved later anyway.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch converts the acm_ms gadget to make use of the function
framework to request the ACM function.
The "old" include interface for acm is now removed since nokia was the
last user of it (for ACM).
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Modify ab8500_usb_set_peripheral() and ab8500_usb_set_host() code to
schedule phy_dis_work only when necessary in order to prevent regulator
count mismatch during reboot/shutdown.
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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ab8500_usb_delayed_work was implemented as a workaroud for the internal
only and now unsupported v1.0 version of AB850. This patch removes the
delayed work and just leave a link status update call at probe time.
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Amend the ab8500-usb driver to optionally take a pin control handle and
set the state of the pins to "default" on ab8500_usb_phy_enable and to
"sleep" on ab8500_usb_phy_disable.
The pinctrl handle is released on ab8500_usb_phy_disable because USB
pins are shared with ab8505_micro_usb_iddet driver.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Fix last ab->phy.notifier call to use vbus_draw as notifier argument, as
that's used in ab8500_charger to control charging current.
Also drop a related TODO comment, and the additional
ux500_musb_set_vbus(musb, 0), as with this patch it was causing an
erratic behaviour of gadget ep0 state machine.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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To prevent clock and regulator frameworks from complaining, only disable
the host or peripheral phy if they were enabled.
Reported-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Add ab8500_usb_regulator_{enable,disable} functions to control USB phy
regulators on corresponding ab8500_usb_phy_{enable,disable} events.
This contains some workaround and optimization for specific AB8500
versions.
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Split ab8500_usb_phy_ctrl into separate enable/disable functions to make
the code more linear and readable.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Add initial regulator support to ab8500-usb by introducing necessary
devm_regulator_get().
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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AB8500 v2.0 has eye diagram issues when drawing more than 100mA from
VBUS. Force charging current to 100mA in case of standard host.
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Set phy tuning values proposed by the hardware teams for AB8500 and
AB8505 to improve USB eye diagram performances.
Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Convert local data allocation to devm_kzalloc and drop unnecessary fail
path code.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Drop references to deprecated U5500 platform in driver comments.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages; so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Remove all section annotations to fix the
following section mismatches:
>> WARNING: drivers/usb/gadget/pxa27x_udc.o(.text+0x597c): Section mismatch in
reference from the function .pxa_udc_probe() to the function
.init.text:.udc_init_data.constprop.11()
The function .pxa_udc_probe() references
the function __init .udc_init_data.constprop.11().
This is often because .pxa_udc_probe lacks a __init
annotation or the annotation of .udc_init_data.constprop.11 is wrong.
--
>> WARNING: drivers/usb/gadget/pxa27x_udc.o(.text+0x5a04): Section mismatch in
reference from the function .pxa_udc_probe() to the function
.init.text:.pxa_ep_setup()
The function .pxa_udc_probe() references
the function __init .pxa_ep_setup().
This is often because .pxa_udc_probe lacks a __init
annotation or the annotation of .pxa_ep_setup is wrong.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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udc-core would leak 'udc' memory in some error
cases. Fix it by kfree()ing udc on error path.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Enter IDMA_RESET only when the controller has been reset or
the device has been plugged in to or out from a host. In
IDMA_RESET, we should disable the corresponding PRD interrupt.
Also there is a redundant space eliminated.
fusb300_udc driver is tested on FARADAY platform a369 with
FUSB300 FPGA v1.8
Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The final version of fusb300 controller adds EPSET0_STL_CLR
for clearing EP0 stall and also removes EPSET0_EPn_TX0BYTE.
fusb300_udc driver is tested on FARADAY platform a369 with
FUSB300 FPGA v1.8
Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used
when the CONFIG_PM_SLEEP is enabled. Unnecessary CONFIG_PM ifdefs
are removed.
drivers/usb/dwc3/core.c:682:12: warning: 'dwc3_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc3/core.c:709:12: warning: 'dwc3_resume' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-omap.c:430:12: warning: 'dwc3_omap_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-omap.c:440:12: warning: 'dwc3_omap_resume' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-exynos.c:185:12: warning: 'dwc3_exynos_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-exynos.c:194:12: warning: 'dwc3_exynos_resume' defined but not used [-Wunused-function]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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avoid reading fifo rxcount is zero of fifo is empty, hence
read fifo only if rxcount is non-zero
Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The musb controller uses single bit defintion for both reset and
babble events. The babble event is valid only when controller is
active a-host, and hence print the babble message only when the
controller is active a-host.
Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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MUSB controller cannot work in DMA mode with misaligned buffers,
switching in PIO mode.
HCD core has hooks that allow to override the default DMA
mapping and unmapping routines for host controllers that have
special DMA requirements, such as alignment constraints.
It is observed that work in PIO mode is slow and it's better
to align buffers properly before passing them to MUSB
This increased throughput 80->120 MBits/s over musb@omap4 with
USB Gigabit Ethernet adapter attached.
Some ideas are taken from ehci-tegra.c
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch adds the support for 'get_unmapped_area' in UVC gadget
which is called when the 'mmap' system call is executed on MMUless
architectures.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This patch reworks the videobuffer management logic present in the UVC
webcam gadget and ports it to use the "more apt" videobuf2 framework for
video buffer management.
To support routing video data captured from a real V4L2 video capture
device with a "zero copy" operation on videobuffers (as they pass from
the V4L2 domain to UVC domain via a user-space application), we need to
support USER_PTR IO method at the UVC gadget side.
So the V4L2 capture device driver can still continue to use MMAP IO
method and now the user-space application can just pass a pointer to the
video buffers being dequeued from the V4L2 device side while queueing
them at the UVC gadget end. This ensures that we have a "zero-copy"
design as the videobuffers pass from the V4L2 capture device to the UVC
gadget.
Note that there will still be a need to apply UVC specific payload
headers on top of each UVC payload data, which will still require a copy
operation to be performed in the 'encode' routines of the UVC gadget.
This patch also addresses one issue found out while porting the UVC
gadget to videobuf2 framework:
- In case the usb requests queued by the gadget get completed
with a status of -ESHUTDOWN (disconnected from host),
the queue of videobuf2 should be cancelled to ensure that the
application space daemon is not left in a state waiting for
a vb2 to be successfully absorbed at the USB side.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This patch fixup below sparse errors
CHECK ${RENESAS_USB}/common.c
${RENESAS_USB}/common.c:313:17: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/common.c:322:17: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/common.c:384:17: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/common.c:524:9: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/common.c:545:9: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/common.c:574:9: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/common.c:606:9: error: incompatible types in conditional expression (different base types)
${RENESAS_USB}/mod_gadget.c:233:28: warning: symbol 'req_clear_feature' was not declared. Should it be static?
${RENESAS_USB}/mod_gadget.c:274:28: warning: symbol 'req_set_feature' was not declared. Should it be static?
${RENESAS_USB}/mod_gadget.c:375:28: warning: symbol 'req_get_status' was not declared. Should it be static?
[ balbi@ti.com : added three sparse fixes to mod_gadget.c ]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The origianl understanding of clock is wrong. The UDC controller
only have one clock input.
Passing clock name by pdata is wrong. The clock is defined by device
iteself.
Cc: Chao Xie <chao.xie@marvell.com>
Cc: Yu Xu <yuxu@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The origianl understanding of clock is wrong. The EHCI controller
only have one clock input.
Passing clock name by pdata is wrong. The clock is defined by device
iteself.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The origianl understanding of clock is wrong. The OTG controller
only have one clock input.
Passing clock name by pdata is wrong. The clock is defined by device
iteself.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The origianl understanding of clock is wrong. The UDC controller
only have one clock input.
Passing clock name by pdata is wrong. The clock is defined by device
iteself.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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On some platform configurations (like OMAP3+twl4030) it's the platform
code that enables VBUS, not OTG transceiver, so call vbus platform
callback instead, it will then call the transceiver if needed.
This fixes a use case where USB cable is plugged first and gadget
driver is loaded later after that.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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On USB_EVENT_ID event the musb glue enables VBUS by calling
omap2430_musb_set_vbus(musb, 1) that sets the session bit, but on
USB_EVENT_NONE reverse action is never made, and that breaks PM.
Disable VBUS on USB_EVENT_NONE to be sure musb session is ended
on cable unplug so that PM works.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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At least on pandora, STS_VBUS gets set even when VBUS is driven by twl
itself. Reporting VBUS in this case confuses OMAP musb glue and charger
driver, so check if OTG VBUS charge pump is on before reporting VBUS
event to avoid this problem.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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fix the following sparse warning:
drivers/usb/musb/ux500_dma.c:60:6: warning: symbol 'ux500_dma_callback' was not declared. Should it be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
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fix the following sparse warnings:
drivers/usb/gadget/mv_u3d_core.c:223:20: warning: context imbalance in 'mv_u3d_done' - unexpected unlock
drivers/usb/gadget/mv_u3d_core.c:1562:25: warning: context imbalance in 'mv_u3d_handle_setup_packet' - unexpected unlock
Note that the non-trivial sparse warnings
are left out of this commit due to lack of
HW to test:
drivers/usb/gadget/mv_u3d_core.c:906:42: warning: incorrect type in argument 2 (different address spaces)
drivers/usb/gadget/mv_u3d_core.c:906:42: expected void [noderef] <asn:2>*<noident>
drivers/usb/gadget/mv_u3d_core.c:906:42: got unsigned int *<noident>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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fix the following sparse warnings:
drivers/usb/gadget/mv_udc_core.c:1850:6: warning: symbol 'irq_process_reset' was not declared. Should it be static?
drivers/usb/gadget/mv_udc_core.c:247:9: warning: context imbalance in 'done' - unexpected unlock
drivers/usb/gadget/mv_udc_core.c:1692:25: warning: context imbalance in 'handle_setup_packet' - unexpected unlock
Note that there are still other sparse warnings
which aren't trivial to fix, so I left them out:
drivers/usb/gadget/mv_udc_core.c:848:34: warning: incorrect type in argument 1 (different address spaces)
drivers/usb/gadget/mv_udc_core.c:848:34: expected void const volatile [noderef] <asn:2>*addr
drivers/usb/gadget/mv_udc_core.c:848:34: got unsigned int *<noident>
drivers/usb/gadget/mv_udc_core.c:849:42: warning: incorrect type in argument 2 (different address spaces)
drivers/usb/gadget/mv_udc_core.c:849:42: expected void volatile [noderef] <asn:2>*addr
drivers/usb/gadget/mv_udc_core.c:849:42: got unsigned int *<noident>
Acked-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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fix the following sparse warnings:
drivers/usb/gadget/pch_udc.c:1483:9: warning: context imbalance in 'complete_req' - unexpected unlock
drivers/usb/gadget/pch_udc.c:2408:28: warning: context imbalance in 'pch_udc_svc_control_out' - unexpected unlock
Signed-off-by: Felipe Balbi <balbi@ti.com>
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fix the following sparse warning:
drivers/usb/gadget/dummy_hcd.c:1912:12: warning: symbol 'usb3_bos_desc' was not declared. Should it be static?
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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fix the following sparse warnings:
drivers/usb/gadget/net2280.c:2063:13: warning: Using plain integer as NULL pointer
drivers/usb/gadget/net2280.c:2321:68: warning: Using plain integer as NULL pointer
drivers/usb/gadget/net2280.c:2349:68: warning: Using plain integer as NULL pointer
drivers/usb/gadget/net2280.c:2371:68: warning: Using plain integer as NULL pointer
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Fix the following sparse warnings:
drivers/usb/gadget/net2272.c:916:13: warning: Using plain integer as NULL pointer
drivers/usb/gadget/net2272.c:1624:9: warning: Using plain integer as NULL pointer
drivers/usb/gadget/net2272.c:1552:30: warning: right shift by bigger than source value
Note that the last warning is an actual bug,
since ep->dma is a one bit value which is
shifted by one bit in code.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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this driver compiles fine everywhere which
means we can use linux-next to compile it
for us frequently.
By dropping the arch dependency, we also
ensure driver writers don't add virtual
arch-depdencies to the driver by e.g. using
the wrong headers.
While at that, fix Marvell's USB3 PHY dependency,
that's the driver which depends on CPU_MM3, not
mv_u3d_core.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Fix the following sparse warnings:
drivers/usb/gadget/mv_u3d_core.c: In function ‘mv_u3d_ep_queue’:
drivers/usb/gadget/mv_u3d_core.c:812:2: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c:822:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c:823:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c:823:28: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c: In function ‘mv_u3d_ep_dequeue’:
drivers/usb/gadget/mv_u3d_core.c:905:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c: In function ‘mv_u3d_probe’:
drivers/usb/gadget/mv_u3d_core.c:1840:3: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c:1855:51: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c:1855:17: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
drivers/usb/gadget/mv_u3d_core.c:1858:53: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
drivers/usb/gadget/mv_u3d_core.c:1858:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
drivers/usb/gadget/mv_u3d_core.c: In function ‘mv_u3d_irq_process_tr_complete’:
drivers/usb/gadget/mv_u3d_core.c:163:21: warning: ‘remaining_length’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/usb/gadget/mv_u3d_core.c:125:28: note: ‘remaining_length’ was declared here
Signed-off-by: Felipe Balbi <balbi@ti.com>
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USB_GADGET_{DUAL,SUPER}SPEED symbols have
been removed by commit 85b8614 (usb: gadget:
get rid of USB_GADGET_{DUAL,SUPER}SPEED), for
some reason mv_u3d_core was lost.
Remove those selects now.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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none of those headers are used by the driver,
removing them still compiles fine.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Make mv_u3d_pm_ops static because mv_u3d_pm_ops is not exported.
Also, CONFIG_PM_SLEEP is used to remove unnecessary ifdefs.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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VBUS_ERROR is a serious error that the driver often doesn't recover from
in my tests, so we should at least inform the user about it.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Some musb glue drivers use gadget_driver pointer to know if any gadget
drivers are loaded at some moment and base further decisions on it,
like to do runtime suspend/resume or not. Right now the pointer is
left alone on stop and OMAP musb glue later does wrong runtime_pm
decisions because of it.
Clear the gadget_driver pointer on remove, it's invalid after stop
anyway.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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As the usb transceiver driver usually starts first, it should already
have default_a variable set according to ID pin state, so don't
override it. In case default_a was not changed by trasceiver, it will
default to 0 and this code will work as before.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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PHY layer no longer returns NULL, we must
switch from IS_ERR_OR_NULL() to IS_ERR().
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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