| 9599815de61db104ad21bc61f5e3544d2415c6ee |
|
20-Oct-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2: gadget: fix enumeration issues
Excessive debug messages might cause timing issues that prevent correct
usb enumeration. This patch hides information about USB bus reset to let
driver enumerate fast enough to avoid making host angry. This fixes
endless enumeration and usb reset loop observed with some Linux hosts.
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
|
| 3a8146aafcedd93e42045598802e1eb71cae68c0 |
|
20-Oct-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2: gadget: disable phy before turning off power regulators
This patch fixes probe function to match the pattern used elsewhere in
the driver, where power regulators are turned off as the last element in
the device shutdown procedure.
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
|
| 32805c350bad16e7d4debe55820d2e79dca89fb6 |
|
20-Oct-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2: gadget: fix gadget unregistration in udc_stop() function
udc_stop() should clear ->driver pointer unconditionally to let the UDC
framework to work correctly with both registering/unregistering gadgets
and enabling/disabling gadgets by writing to
/sys/class/udc/*hsotg/soft_connect interface.
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
|
| b585a48b8a9486f26a68886278f2c8f981676dd4 |
|
17-Oct-2014 |
Sudip Mukherjee <sudipm.mukherjee@gmail.com> |
usb: dwc2: gadget: sparse warning of context imbalance
sparse was giving the following warning:
warning: context imbalance in 's3c_hsotg_ep_enable'
- different lock contexts for basic block
we were returning ENOMEM while still holding the spinlock.
The sparse warning was fixed by releasing the spinlock before return.
Cc: <stable@vger.kernel.org> # v3.17
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
|
| 304f7e5e1d08fa2f5674c1323bd0ebd806c86b81 |
|
24-Sep-2014 |
Michal Sojka <sojka@merica.cz> |
usb: gadget: Refactor request completion
Use the recently introduced usb_gadget_giveback_request() in favor of
direct invocation of the completion routine.
All places in drivers/usb/ matching "[-.]complete(" were replaced with a
call to usb_gadget_giveback_request(). This was compile-tested with all
ARM drivers enabled and runtime-tested for musb.
Signed-off-by: Michal Sojka <sojka@merica.cz>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 1b59fc7e3cda3f626204cadda8bb9b7d15f4f55b |
|
09-Sep-2014 |
Kamil Debski <k.debski@samsung.com> |
usb: dwc2/gadget: move phy bus legth initialization
This patch moves the part of code that initializes the PHY bus width.
This results in simpler code and removes the need to check whether
the Generic PHY Framework is used.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| d00b41428042e72d9dc2557d9147434a4e3d631f |
|
09-Sep-2014 |
Robert Baldyga <r.baldyga@samsung.com> |
usb: dwc2/gadget: disable clock when it's not needed
When device is stopped or suspended clock is not needed so we
can disable it for this time.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| b203d0a2e32dd28e87780078f0789322862e4da8 |
|
09-Sep-2014 |
Robert Baldyga <r.baldyga@samsung.com> |
usb: dwc2/gadget: assign TX FIFO dynamically
Because we have not enough memory to have each TX FIFO of size at least
3072 bytes (the maximum single packet size with 3 transactions per
microframe), we create four FIFOs of lenght 1024, and four of length
3072 bytes, and assing them to endpoints dynamically according to
maxpacket size value of given endpoint.
Up to now there were initialized 16 TX FIFOs, but we use only 8 IN
endpoints, so we can split available memory for 8 FIFOs to have more
memory for each one.
It needed to do some small modifications in few places in code, because
there was assumption that TX FIFO numbers assigned to endpoints are the
same as the endpoint numbers, which is not true since we have dynamic
FIFO assigning.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| cff9eb756e18a7763d7ab9c574c0ab191e712341 |
|
09-Sep-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2/gadget: ensure that all fifos have correct memory buffers
Print warning if FIFOs are configured in such a way that they don't fit
into the SPRAM available on the s3c hsotg module.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 1e01129373f757925a652ea4ea5b278f8c2b9222 |
|
09-Sep-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2/gadget: hide some not really needed debug messages
Some DWC2/s3c-hsotg debug messages are really useless for typical user,
so hide them behind dev_dbg().
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| d784f1e50977e58db23a79181971c3c0f62452e5 |
|
09-Sep-2014 |
Andrzej Pietrasiewicz <andrzej.p@samsung.com> |
usb: dwc2/gadget: Fix comment text
Adjust the debug text to the name of the printed variable.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 87df8ac3d2e4f47f3d24e6038110feebbe8954cf |
|
11-Sep-2014 |
Robert Baldyga <r.baldyga@samsung.com> |
Revert "usb: dwc2: move "samsung,s3c6400-hsotg" into common platform"
This reverts commit 8df438571cdbd5c4fcd1b25b19eea1ad5c3cf777.
This patch breaks building dwc2 driver in gadget mode at samsung
platforms.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 604eac3c0c69e98f2fd0133305f9e777418f1d3b |
|
09-Sep-2014 |
Robert Baldyga <r.baldyga@samsung.com> |
usb: dwc2/gadget: avoid disabling ep0
Endpoint 0 should not be disabled, so we start loop counter from number 1.
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Cc: stable <stable@vger.kernel.org> # 3.16
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| eb3c56c5ccdd252940cb0ec0541fcdc94894bd8d |
|
09-Sep-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2/gadget: delay enabling irq once hardware is configured properly
This patch fixes kernel panic/interrupt storm/etc issues if bootloader
left s3c-hsotg module in enabled state. Now interrupt handler is enabled
only after proper configuration of hardware registers.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Cc: stable <stable@vger.kernel.org> # 3.16
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| b510df5a36c066da3a188f4ade3404118b63c6de |
|
09-Sep-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2/gadget: do not call disconnect method in pullup
This leads to potential spinlock recursion in composite framework, other
udc drivers also don't call it directly from pullup method.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Cc: stable <stable@vger.kernel.org> # 3.16
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| e0cbe595db72b037260bbda77106f6811a1ebb1d |
|
09-Sep-2014 |
Marek Szyprowski <m.szyprowski@samsung.com> |
usb: dwc2/gadget: break infinite loop in endpoint disable code
This patch fixes possible freeze caused by infinite loop in interrupt
context.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Cc: stable <stable@vger.kernel.org> # 3.16
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| ca2c5ba80f823a38c4aae506e2f03c1afb076b0a |
|
09-Sep-2014 |
Kamil Debski <k.debski@samsung.com> |
usb: dwc2/gadget: fix phy initialization sequence
In the Generic PHY Framework a NULL phy is considered to be a valid phy
thus the "if (hsotg->phy)" check does not give us the information whether
the Generic PHY Framework is used.
In addition to the above this patch also removes phy_init from probe and
phy_exit from remove. This is not necessary when init/exit is done in the
s3c_hsotg_phy_enable/disable functions.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Cc: stable <stable@vger.kernel.org> # 3.16
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 0655314be0d9c54ad5f63500219485c6a9d9e5e2 |
|
09-Sep-2014 |
Kamil Debski <k.debski@samsung.com> |
usb: dwc2/gadget: fix phy disable sequence
When the driver is removed s3c_hsotg_phy_disable is called three times
instead of once. This results in decreasing of the phy reference counter
below zero and thus consecutive inserts of the module fails.
This patch removes calls to s3c_hsotg_phy_disable from s3c_hsotg_remove
and s3c_hsotg_udc_stop.
s3c_hsotg_udc_stop is called from udc-core.c only after
usb_gadget_disconnect, which in turn calls s3c_hsotg_pullup, which
already calls s3c_hsotg_phy_disable.
s3c_hsotg_remove must be called only after udc_stop, so there is no
point in disabling phy once again there.
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Cc: stable <stable@vger.kernel.org> # 3.16
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 8df438571cdbd5c4fcd1b25b19eea1ad5c3cf777 |
|
26-Aug-2014 |
Dinh Nguyen <dinguyen@opensource.altera.com> |
usb: dwc2: move "samsung,s3c6400-hsotg" into common platform
Move the "samsung,s3c6400-hsotg" binding as the probe function in the gadget
driver will get removed when the dual-role driver is implemented.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 9b2667f1f30e91becc3751acd5cffaedcf68e098 |
|
19-Aug-2014 |
Jingoo Han <jg1.han@samsung.com> |
usb: dwc2: gadget: Set the default EP max packet value as 8 bytes
Set the default EP max packet value as 8 bytes, because in the case
of low-speed, 'ep_mps' is not set. Thus, the default value of 'ep_mps'
should be considered for the case of low-speed.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 194f74ebc68f0655d40e9cb4e8a70ef8e8d4d261 |
|
19-Aug-2014 |
Peter Chen <peter.chen@freescale.com> |
usb: dwc2: gadget: fix below build warning
linux-2.6/drivers/usb/dwc2/gadget.c: In function 's3c_hsotg_irq_enumdone':
linux-2.6/drivers/usb/dwc2/gadget.c:1904: warning: 'ep_mps' may be used uninitialized in this function
Acked-by: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 53dbcb399b22dad14becb2557a1ebea258ac266d |
|
03-Jun-2014 |
Jingoo Han <jg1.han@samsung.com> |
usb: dwc2: gadget: remove incorrect file reference
The file and folder movements resulted in the incorrect reference.
So for better code maintainability, let's remove it.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| d04477d84be0bcac96452bdb824ff6eec4b49c96 |
|
03-Jun-2014 |
Jingoo Han <jg1.han@samsung.com> |
usb: dwc2: gadget: remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| e9ebe7c3b76c24fd5bc2f3b99db453ea71c3072b |
|
03-Jun-2014 |
Jingoo Han <jg1.han@samsung.com> |
usb: dwc2: gadget: fix checkpatch errors
Fix checkpatch errors as belows.
ERROR: open brace '{' following function declarations go on the next line
ERROR: space required before the open parenthesis '('
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 0cc4cf6f3049fe174b6698016e046a233a2a6045 |
|
29-Apr-2014 |
Fabio Estevam <fabio.estevam@freescale.com> |
usb: dwc2: Remove '0x' notation when using %pad format
%pad notation automatically prints in hexadecimal format (with '0x'), so remove
the unneeded '0x' to avoid a '0x0x' string.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| d5dbd3f7d82223b59dc2200c0e9f4f95665a21a4 |
|
25-Apr-2014 |
Paul Zimmerman <Paul.Zimmerman@synopsys.com> |
usb: dwc2: fix sparse warning
Sparse warns about the __le16 wValue from the USB SetAddress
command being used without converting it to CPU endianness. Fix
that, and also add a bit of defensive masking of the received
wValue before using it.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| f7c0b14351c483bdeb86a81d609e26263cb0dd30 |
|
14-Apr-2014 |
Dinh Nguyen <dinguyen@altera.com> |
usb: dwc2: move s3c-hsotg data structures
This patch moves the data structures that are in the s3c-hsotg
source into core.h. This is a necessary step towards unifying
the s3c-hsotg and dwc2 into a single DRD.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
[ jh,rb,fb - For gadget part only: ]
Tested-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
[ pz - Tested host part only. ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 47a1685f139271de401212bd69d17374ca5a5270 |
|
14-Apr-2014 |
Dinh Nguyen <dinguyen@altera.com> |
usb: dwc2/s3c-hsotg: move s3c-hsotg into dwc2 directory
Moves the s3c-hsotg driver into the dwc2 directory and uses the
dwc2 defines in hw.h. Renames s3c-hsotg.c to gadget.c.
NOTE: You can build both host and peripheral as a dynamically
linked module, but be aware that if you insmod dwc2_gadget, then
rmmod it, then insmod dwc2 and dwc2_platform for host mode, this
will not work. As the step to rmmod dwc2_gadget.ko will turn off
the clock to the USB IP. The dwc2 host driver currently does not
look to turn on a clock yet. A patch to fix that will be coming
soon.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
[ jh,rb - For gadget part only: ]
Tested-by: Jingoo Han <jg1.han@samsung.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
[ pz: Folded Kconfig/Makefile changes, which were originally in
a separate patch, into this one, to avoid a build breakage.
Modified Kconfig/Makefile changes a bit. Tested host part only. ]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|