usb: abolish wait_ms() function ...

This function is only used in drivers/usb/*.
It is equivalent to mdelay().

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: host: only activate Efika MX ULPI workaround if ULPI is selected ...

Fixes a build failure with disabled ULPI support.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: ehci-hcd: Correct CLEAR_FEATURE code ...

This commit broke USB on olinuxino board:

  87b9bea USB: host: hub: Use usb_hub_power_on from U-Boot

This patch was ported from U-Boot with small changes. See discussion:
http://lists.denx.de/pipermail/u-boot/2013-May/153920.html

The root cause seems to be a missing mask and missing 'break' in
ehci-hcd.c. Fix both.

Signed-off-by: Dmitry Voytik <voytikd@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

resource: Let dev_request_mem_region return an error pointer ...

For all users fix or add the error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: EHCI: use min3 from Linux ...

EHCI HCD has a private version of min3() determining the smallest
number out of 3. We already have min()/max() imported from Linux,
also get min3()/max3() and use it instead of EHCI's private one.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Use descriptors from ch11.h ...

Use the descriptors from ch11.h instead of duplicating them
in usb.h. usb_hub_descriptor now contains a union .u to differentiate
HS hub descriptor from SS hub descriptor.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: EHCI: use descriptor length fields ...

Instead of hard-coding descriptor length, pick it from the
corresponding descriptor.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: EHCI: make use of defines for descriptors ...

Now that we have a full set of defines for each descriptor field,
make use of it for the EHCI HCD descriptors.

This fixes endianess issues for .device.bcdUSB, .device.bcdDevice,
.config.wTotalLength, and .endpoint.wMaxPacketSize.

Also, .endpoint.bInterval was set to 0 instead of 255 due to a
copy-and-paste error while assigning u8[] to usb_endpoint_descriptor.

This also is a preparation for including ch11.h later, which has
a modified usb_hub_descriptor for USB 3.0.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: EHCI: reuse ch9.h config and interface descriptors ...

Now that usb_config_descriptor and usb_interface_descriptor are clean
of any additional fields, drop the duplication in EHCI code and use
the default ones.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: host: drop force rescan ...

We can now detect changes in the USB device hierarchy properly, so
the 'force' option to the usb command is no longer necessary. We just
scan the busses each time the usb command is called.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Remove conflicting USB_SPEED_* definitions ...

We have USB_SPEED_* definitions as macros in usb_defs.h and as an enum
in ch9.h. The defines in usb.h correspond to hardware bits in the
ehci controller. Get rid of them and keep the hardware independent
enums.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB: Check init/post_init errors ...

Host with inoperable ULPI able to bring the system into an
infinite loop. The patch adds error checking during initialization
to avoid this.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: make usb devices children of the corresponding host ...

To be able to find usb devices in the hardware tree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/usb'

ARM: i.MX51 efikasb: Switch to devicetree probing ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: ehci: Fixup efika hack for devicetree ...

We used to distinguish which USB port to fixup by pdev->id. This
is < 0 for devicetree probed devices all the time, so this won't
work anymore once we switch to devicetree. Do the fixup on every
port instead, it doesn't hurt.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: ehci: implement detect callback ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: ehci: initialize ehci_data ...

Without it fields of ehci_data may be unitialized and the driver
crashes.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/usb'

USB ehci: Add platform specific init calls ...

Some USB cores need a platform specific init hook, add it to
the ehci driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Use new device_platform_driver() macro for drivers ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/compile-log-level' ...

Conflicts:
	drivers/usb/host/ehci-hcd.c

USB ehci: Use dev_* for messages ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ehci: if caps ressource is not provided discover it via cr_capbase ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: fix for USB_ST_STALLED status reporting in ehci_submit_async() ...

Checking the status field of the qTD token in the current code
do not take into acount cases where endpoint stall (halted) bit
is set together with XactErr status bit. As a result clearing
stall on an endpoint won't be done if this status bit was also
set. Check for halted bit and report USB_ST_STALLED status
if the host controller also indicates endpoit stall condition.

From u-boot by Anatolij Gustschin <agust@denx.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB ehci: Add powerup fixup for EfikaSB ...

The EfikaSB has a bug requiring to write to an ULPI register after
powerup. It doesn't seem that this this bug is present on any other
hardware, so add a workaround directly into the driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB ehci: Allow to register independently from device ...

The EHCI core often is part of a otg core. Allow it to be registered
separately from another driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

switch all platform_bus device/driver registering to platform_driver/device_register ...

now register_driver and register_device are for bus only usage.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

USB ehci: rework cache handling ...

We do not need to invalidate the cache in the poll loop anymore
since the corresponding bit is now in a dma coherent area. Instead,
flush cache before hardware operation and invalidate afterwards. Put
the corresponding code inline since it's shorter.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>