openwrt/staging/blogic.git
14 years agoUSB: gadget: add INT support for Blackfin musb
Cliff Cai [Mon, 21 Dec 2009 15:42:39 +0000 (10:42 -0500)]
USB: gadget: add INT support for Blackfin musb

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: gadget: use ep5 for bulk-in and ep6 for bulk-out for Blackfin MUSB
Bryan Wu [Mon, 21 Dec 2009 15:43:06 +0000 (10:43 -0500)]
USB: gadget: use ep5 for bulk-in and ep6 for bulk-out for Blackfin MUSB

Normally, the musb uses ep1 as the bidirectional bulk endpoint.  This won't
work on the Blackfin musb as all endpoints (except ep0) are unidirectional.
Further, ep1-ep4 have a small 128 byte FIFO which makes them undesirable
for bulk endpoints (which need more like a 512 byte FIFO).  This leaves us
with ep5-ep7 which have 1024 byte FIFOs and can be configured as either
in/out and bulk/interrupt/iso on the fly.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: host: SL811: allow the hcd on Blackfin systems
Michael Hennerich [Mon, 21 Dec 2009 16:16:00 +0000 (11:16 -0500)]
USB: host: SL811: allow the hcd on Blackfin systems

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: host: SL811: fix unaligned accesses
Michael Hennerich [Mon, 21 Dec 2009 17:53:24 +0000 (12:53 -0500)]
USB: host: SL811: fix unaligned accesses

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: isp1362: Use kzalloc for allocating only one thing
Julia Lawall [Sat, 19 Dec 2009 07:17:44 +0000 (08:17 +0100)]
USB: isp1362: Use kzalloc for allocating only one thing

Use kzalloc rather than kcalloc(1,...)

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
@@

- kcalloc(1,
+ kzalloc(
          ...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cypress_m8: allow unstable baud rates
Mike Frysinger [Fri, 18 Dec 2009 21:33:03 +0000 (16:33 -0500)]
USB: cypress_m8: allow unstable baud rates

I've got a crappy cypress converter here, and while running at higher
baud rates craps out on throughput, it works fine with lower ones.
While it'd be nice to simply use a lower baud rate, not all devices
can be configured this way, and it is possible to (slowly) interact
at higher rates by sending a byte at a time.  So let people force
higher rates when they need it via a module parameter.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cypress_m8: unify confusing new baudrate check
Mike Frysinger [Fri, 18 Dec 2009 21:33:02 +0000 (16:33 -0500)]
USB: cypress_m8: unify confusing new baudrate check

The current code has a confusing duplicate new_baudrate init when setting
the serial parameters.  So just combine the if statement checks to avoid
this.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cypress_m8: stop using USB debug driver config
Mike Frysinger [Fri, 18 Dec 2009 21:33:01 +0000 (16:33 -0500)]
USB: cypress_m8: stop using USB debug driver config

The USB_SERIAL_DEBUG Kconfig is for the USB serial debug driver, not for
generically enabling debug output in random USB serial drivers.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: Export QUIRK_RESET_MORPHS through sysfs
Oliver Neukum [Sat, 16 Jan 2010 00:33:03 +0000 (01:33 +0100)]
USB: Export QUIRK_RESET_MORPHS through sysfs

Some devices which use mode switching revert to their
primary mode as they are reset. They must not be reset for
error handling. As user spaces makes the switch it also
has to tell the kernel that a device is quirky.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: storage: Never reset devices that will morph to an old mode
Oliver Neukum [Fri, 18 Dec 2009 11:14:21 +0000 (12:14 +0100)]
USB: storage: Never reset devices that will morph to an old mode

Some devices must be switched to a new mode to fully use them.
A reset would make them revert to the old mode. Therefore a reset
must not be used for error handling with such devices.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: otg: twl4030: add support for notifier
Felipe Balbi [Thu, 17 Dec 2009 11:01:37 +0000 (13:01 +0200)]
USB: otg: twl4030: add support for notifier

it's expected that the transceiver driver will
initialize and call the notifier chain when
necessary. Implement that for twl4030-usb driver.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: otg: add notifier support
Felipe Balbi [Thu, 17 Dec 2009 11:01:36 +0000 (13:01 +0200)]
USB: otg: add notifier support

The notifier will be used to communicate usb events
to other drivers like the charger chip.

This can be used as source of information to kick
usb charger detection as described by the USB
Battery Charging Specification 1.1 and/or to
pass bMaxPower field of selected usb_configuration
to charger chip in order to use that information
as input current on the charging profile
setup.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: wusb: check CHID is all zeros before stopping the host
Julia Lawall [Thu, 17 Dec 2009 13:57:33 +0000 (13:57 +0000)]
USB: wusb: check CHID is all zeros before stopping the host

An incorrect sizeof() resulted in only 4 (or 8) octets of the CHID being
checked instead of all 16 octets.  A randomly generated CHID had a
probability of being unable to start a WUSB host of less than 1 in
2 billion.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: No GFP_KERNEL in block error handling
Oliver Neukum [Wed, 16 Dec 2009 18:43:59 +0000 (19:43 +0100)]
USB: xhci: No GFP_KERNEL in block error handling

xhci_add_endpoint() is used in the reset path. It must
use GFP_NOIO to avoid a possible deadlock.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Sarah Sharp <sarah.a.sharp@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cdc-acm: Update to new autopm API
Oliver Neukum [Wed, 16 Dec 2009 16:05:57 +0000 (17:05 +0100)]
USB: cdc-acm: Update to new autopm API

Update cdc-acm to the async methods eliminating the workqueue

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci-au1xxx.c: use platform_get_resource() and resource_size()
H Hartley Sweeten [Mon, 14 Dec 2009 23:22:42 +0000 (18:22 -0500)]
USB: ehci-au1xxx.c: use platform_get_resource() and resource_size()

Use platform_get_resource() to fetch the memory resource and
resource_size() for calculate the length.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci-atmel.c: use resource_size()
H Hartley Sweeten [Mon, 14 Dec 2009 23:15:35 +0000 (18:15 -0500)]
USB: ehci-atmel.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci-orion.c: use resource_size()
H Hartley Sweeten [Mon, 14 Dec 2009 23:13:00 +0000 (18:13 -0500)]
USB: ehci-orion.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: at91_udc.c: use resource_size()
H Hartley Sweeten [Mon, 14 Dec 2009 22:59:22 +0000 (17:59 -0500)]
USB: at91_udc.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: atmel_usba_udc.c: use resource_size()
H Hartley Sweeten [Mon, 14 Dec 2009 23:04:49 +0000 (18:04 -0500)]
USB: atmel_usba_udc.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: pxa27x_udc.c: use resource_size()
H Hartley Sweeten [Mon, 14 Dec 2009 23:05:02 +0000 (18:05 -0500)]
USB: pxa27x_udc.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci-fsl: Add power management support
Anton Vorontsov [Mon, 14 Dec 2009 15:41:12 +0000 (18:41 +0300)]
USB: ehci-fsl: Add power management support

EHCI FSL controller preserve its state during sleep mode, so nothing
fancy needs to be done.

Though, during 'deep sleep' mode (as found in MPC831x CPUs) the
controller turns off and needs to be reinitialized upon resume.

This patch adds support for hibernation and resuming after deep sleep.
Based on Dave Liu and Jerry Huang's work[1].

[1] http://www.bitshrine.org/gpp/linux-fsl-2.6.24.3-MPC8315ERDB-usb-power-mangement.patch

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci-fsl: Fix sparse warnings
Anton Vorontsov [Mon, 14 Dec 2009 15:41:05 +0000 (18:41 +0300)]
USB: ehci-fsl: Fix sparse warnings

This patch fixes following warnings:

ehci-fsl.c:43:5: warning: symbol 'usb_hcd_fsl_probe' was not declared. Should it be static?
ehci-fsl.c:150:6: warning: symbol 'usb_hcd_fsl_remove' was not declared. Should it be static?

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci: fix audio record functionality for some Full speed sound blaster devices
Dmitri Epshtein [Mon, 14 Dec 2009 15:17:34 +0000 (17:17 +0200)]
USB: ehci: fix audio record functionality for some Full speed sound blaster devices

This patch fix audio record functionality for some Full speed sound blaster devices.
Issue: Sometimes transaction complete indication is coming from HW one frame later.
Solution: If scan_periodic process now frame or previous frame now-1 and sitd transaction
is not finished yet, exit scan_periodic function and check the same transaction in the next frame.

Signed-off-by: Dimitry Epshtein <dima@marvell.com>
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ehci: add call of free_cached_itd_list() function in disable_periodic()
Dmitri Epshtein [Mon, 14 Dec 2009 15:17:33 +0000 (17:17 +0200)]
USB: ehci: add call of free_cached_itd_list() function in disable_periodic()

Sometimes disable_periodic() stop scan_periodic before than free_cached_itd_list() was called.
In such case USB Host stacked during disconnect operation
Solution: add call of free_cached_itd_list() function in disable_periodic()

Signed-off-by: Dimitry Epshtein <dima@marvell.com>
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: Add call to notify xHC of a device reset.
Sarah Sharp [Wed, 9 Dec 2009 23:59:17 +0000 (15:59 -0800)]
USB: Add call to notify xHC of a device reset.

Add a new host controller driver method, reset_device(), that the USB core
will use to notify the host of a successful device reset.  The call may
fail due to out-of-memory errors; attempt the port reset sequence again if
that happens.  Update hub_port_init() to allow resetting a configured
device.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Notify the xHC when a device is reset.
Sarah Sharp [Wed, 9 Dec 2009 23:59:13 +0000 (15:59 -0800)]
USB: xhci: Notify the xHC when a device is reset.

When a USB device is reset, the xHCI hardware must know, in order to match
the device state and disable all endpoints except control endpoint 0.
Issue a Reset Device command after a USB device is successfully reset.
Wait on the command to finish, and then cache or free the disabled
endpoint rings.

There are four different USB device states that the xHCI hardware tracks:
 - disabled/enabled - device connection has just been detected,
 - default - the device has been reset and has an address of 0,
 - addressed - the device has a non-zero address but no configuration has
   been set,
 - configured - a set configuration succeeded.

The USB core may issue a port reset when a device is in any state, but the
Reset Device command will fail for a 0.96 xHC if the device is not in the
addressed or configured state.  Don't consider this failure as an error,
but don't free any endpoint rings if this command fails.

A storage driver may request that the USB device be reset during error
handling, so use GPF_NOIO instead of GPF_KERNEL while allocating memory
for the Reset Device command.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Allow roothub ports to be disabled.
Sarah Sharp [Wed, 9 Dec 2009 23:59:11 +0000 (15:59 -0800)]
USB: xhci: Allow roothub ports to be disabled.

Add the hub emulation code to allow ports on an xHCI root hub to be
disabled.  Add the code to clear the port enabled/disabled bit, and clear
the port enabled/disabled change bit.  Like EHCI, the port cannot be
enabled by setting the port enabled/disabled bit.  Instead, a port is
enabled by the host controller after a reset.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Refactor code to clear port change bits.
Sarah Sharp [Wed, 9 Dec 2009 23:59:08 +0000 (15:59 -0800)]
USB: xhci: Refactor code to clear port change bits.

Refactor the code to clear the port change bits in the port status
register.  All port status change bits are write one to clear.

Remove a redundant port status read that was supposed to unblock any
posted writes.  We read the port after the write to get the updated status
for debugging, so the port read after that is unnecessary.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Refactor test for vendor-specific completion codes.
Sarah Sharp [Wed, 9 Dec 2009 23:59:06 +0000 (15:59 -0800)]
USB: xhci: Refactor test for vendor-specific completion codes.

All commands that can be issued to the xHCI hardware can come back with
vendor-specific "informational" completion codes.  These are to be treated
like a successful completion code.  Refactor out the code to test for the
range of these codes and print debugging messages.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Allow allocation of commands without input contexts.
Sarah Sharp [Wed, 9 Dec 2009 23:59:03 +0000 (15:59 -0800)]
USB: xhci: Allow allocation of commands without input contexts.

The xhci_command structure is the basic structure for issuing commands to
the xHCI hardware.  It contains a struct completion (so that the issuing
function can wait on the command), command status, and a input context
that is used to pass information to the hardware.  Not all commands need
the input context, so make it optional to allocate.  Allow
xhci_free_container_ctx() to be passed a NULL input context, to make
freeing the xhci_command structure simple.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Refactor code to free or cache endpoint rings.
Sarah Sharp [Wed, 9 Dec 2009 23:59:01 +0000 (15:59 -0800)]
USB: xhci: Refactor code to free or cache endpoint rings.

Refactor out the code to cache or free endpoint rings from recently
dropped or disabled endpoints.  This code will be used by a new function
to reset a device and disable all endpoints except control endpoint 0.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: xhci: Fix error path when configuring endpoints.
Sarah Sharp [Wed, 9 Dec 2009 23:58:58 +0000 (15:58 -0800)]
USB: xhci: Fix error path when configuring endpoints.

If we fail to queue an evaluate context command or a configure endpoint
command to the command ring in xhci_configure_endpoint(), we need to
remove the xhci_command structure from the device's command list before
returning.  If the command is left on the command list, it will sit there
indefinitely, blocking commands submitted after this fails.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: check the endpoint type against the pipe type
Alan Stern [Fri, 11 Dec 2009 21:20:20 +0000 (16:20 -0500)]
USB: check the endpoint type against the pipe type

This patch (as1316) adds some error checking to usb_submit_urb().
It's conditional on CONFIG_USB_DEBUG, so it won't affect normal users.
The new check makes sure that the actual type of the endpoint
described by urb->pipe agrees with the type encoded in the pipe value.

The USB error code documentation is updated to include the code
returned by the new check, and the usbfs SUBMITURB handler is updated
to use the correct pipe type when legacy user code tries to submit a
bulk transfer to an interrupt endpoint.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agocdc_acm: add reset_resume method
Francesco Lavra [Tue, 8 Dec 2009 08:54:11 +0000 (09:54 +0100)]
cdc_acm: add reset_resume method

Add reset resume logic to the cdc acm driver

Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: serial mct_usb232: move DMA buffers to heap
Pete Zaitcev [Tue, 8 Dec 2009 03:29:05 +0000 (20:29 -0700)]
USB: serial mct_usb232: move DMA buffers to heap

My distro kernel (Fedora Rawhide) started throwing warnings from DMA API
checker, so I have no choice but band-aid it quick. There's no attempt
to reuse DMA buffers. Control messages are only sent rarely anyway.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: pxa27x_udc: avoid compiler warnings and misbehavior on buggy hardware
Enrico Scholz [Sun, 11 Oct 2009 09:52:48 +0000 (11:52 +0200)]
USB: pxa27x_udc: avoid compiler warnings and misbehavior on buggy hardware

hardware reports wrong interrupt.  Although such a situation should not
happen, the compiler complains about this access.

This patch adds a sanity check and generates warning to detect such
issues.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: fix occasional ULPI timeouts with ehci-mxc
Valentin Longchamp [Wed, 20 Jan 2010 18:43:23 +0000 (19:43 +0100)]
USB: fix occasional ULPI timeouts with ehci-mxc

On various mxc boards, the intial ULPI reads resulted in a timeout
which prevented the transceiver to be identified and thus the ehci
device to be probed.

Initializing the hardware lines connected to the transceiver (through
pdata->init call) before actually enabling clocks and configuring
registers in the devices fixes this problem.

Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ftdi_sio: remove support for 5 and 6 data bits
Mark Adamson [Tue, 24 Nov 2009 09:39:10 +0000 (09:39 +0000)]
USB: ftdi_sio: remove support for 5 and 6 data bits

Removed CS5 and CS6 from data bits since these are not supported
in FTDI hardware.

Signed-off-by: Mark J. Adamson <mark.adamson@ftdichip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ftdi_sio: fix initialisation of latency timeout
Johan Hovold [Sun, 22 Nov 2009 20:25:20 +0000 (21:25 +0100)]
USB: ftdi_sio: fix initialisation of latency timeout

Latency timeout was read but never stored on port probe. When
ASYNC_LOW_LATENCY was cleared the device timeout would get set to 0
rather than the default 16ms.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: serial: fix typo in debug message
Johan Hovold [Sun, 22 Nov 2009 16:42:34 +0000 (17:42 +0100)]
USB: serial: fix typo in debug message

Fixes confusing "serial_chars_in_buffer = port 0" messages.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ftdi_sio: remove obsolete comment
Johan Hovold [Sun, 22 Nov 2009 16:25:08 +0000 (17:25 +0100)]
USB: ftdi_sio: remove obsolete comment

We always push characters to ldisc immediately regardless of
ASYNC_LOW_LATENCY.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: ftdi_sio: fix error message on close
Johan Hovold [Sun, 22 Nov 2009 16:01:13 +0000 (17:01 +0100)]
USB: ftdi_sio: fix error message on close

Resubmitting read urb fails with -EPERM if completion handler runs while
urb is being killed on close. This should not be reported as an error.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: increment driver version
Simon Arlott [Sat, 21 Nov 2009 15:16:38 +0000 (15:16 +0000)]
USB: cxacru: increment driver version

Changes:
  Return an empty string for modulation
    when there is no connection
  Fix sysfs unload race conditions
  Log firmware load process, remove delay
  Add new configuration interface
  Remove cxacru-cf.bin

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: remove cxacru-cf.bin loader
Simon Arlott [Sat, 21 Nov 2009 15:15:47 +0000 (15:15 +0000)]
USB: cxacru: remove cxacru-cf.bin loader

This has never worked properly because wsize passed to
cxacru_cm() is incorrectly set to the number of values
instead of the data bytes. The maximum number of values
that can be set at once is 7 which means the device will
not get enough data to work with and none of the
configuration values will be used.

At least one existing cxacru-cf.bin file contains invalid
data which will prevent the modem from syncing properly.

Fixing it is likely to break existing systems, and the
new sysfs interface for setting configuration parameters
can provide the same functionality. A script is provided
to convert from the original format.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: add write-only sysfs attribute for modem configuration
Simon Arlott [Sat, 21 Nov 2009 15:14:01 +0000 (15:14 +0000)]
USB: cxacru: add write-only sysfs attribute for modem configuration

The modem can be configured using CM_REQUEST_CARD_DATA_SET,
although CM_REQUEST_CARD_DATA_GET does not return any data.

Tested by setting the modulation (0x0a) option.

There is a list of parameters in the following archive,
but the meaning of many of them is not well documented:
  http://sourceforge.net/project/shownotes.php?release_id=301825

This source also indicates that the highest parameter set
is 0x4a but this varies by model so an arbitrary limit of
0x7f has been used (the index is a 32-bit integer).

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: firmware writes on OHCI are slow, log progress
Simon Arlott [Sat, 21 Nov 2009 15:12:56 +0000 (15:12 +0000)]
USB: cxacru: firmware writes on OHCI are slow, log progress

Firmware writing takes 256ms per 4KB with OHCI, which
is very slow compared to 7ms per 4KB with UHCI.

Until I have access to a hardware USB analyser it may
not be possible to determine why this happens.

Instead of appearing to do nothing, log progress when
writing firmware and then log the ATM device information
when finished. Remove an unnecessary 4 second delay.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: document how to interact with the flash memory
Simon Arlott [Sat, 21 Nov 2009 15:12:21 +0000 (15:12 +0000)]
USB: cxacru: document how to interact with the flash memory

These commands were found by accident... fortunately
it still works even if the flash memory is erased,
despite having no USB device IDs.

Some example sysfs code for raw command access:
  http://simon.arlott.org/pub/cxacru/raw.c

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: check device isn't being removed during sysfs calls
Simon Arlott [Sat, 21 Nov 2009 15:33:51 +0000 (15:33 +0000)]
USB: cxacru: check device isn't being removed during sysfs calls

It is possible for usb_get_intfdata() to return NULL if
sysfs is accessed while the module is being unloaded or
the device is being removed.

Move the access code to an inline function in usbatm.h,
and return -ENODEV if any of the pointers are NULL.

It should not be possible for the instance data or atm
device to be invalid until after unbind() completes and
the sysfs attributes have been removed.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: check data length is not negative
Simon Arlott [Sat, 21 Nov 2009 15:07:14 +0000 (15:07 +0000)]
USB: cxacru: check data length is not negative

When attempting to read data that is not actually
an array of values, the length may be negative
which causes an Oops due to a likely access off
the end of the data array.

This bug should not occur under normal use unless
the device returns an invalid response.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: cxacru: return an empty value for modulation if there is no connection
Simon Arlott [Sat, 21 Nov 2009 15:03:23 +0000 (15:03 +0000)]
USB: cxacru: return an empty value for modulation if there is no connection

When there is no connection, return an empty string
instead of "0" for the connection modulation.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: MXC: add platform resources for i.MX21 USB host controller.
Martin Fuzzey [Sat, 21 Nov 2009 11:14:58 +0000 (12:14 +0100)]
USB: MXC: add platform resources for i.MX21 USB host controller.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: MXC: use DMA_BIT_MASK macro rather than hardcoded constants.
Martin Fuzzey [Sat, 21 Nov 2009 11:14:54 +0000 (12:14 +0100)]
USB: MXC: use DMA_BIT_MASK macro rather than hardcoded constants.

Also fixes tab/space issue causing checkpatch to complain.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoUSB: MXC: Add i.MX21 specific USB host controller driver.
Martin Fuzzey [Sat, 21 Nov 2009 11:14:48 +0000 (12:14 +0100)]
USB: MXC: Add i.MX21 specific USB host controller driver.

This driver is a Full / Low speed only USB host for the i.MX21.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
14 years agoMerge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 1 Mar 2010 21:05:40 +0000 (13:05 -0800)]
Merge branch 'davinci-for-linus' of git://git./linux/kernel/git/khilman/linux-davinci

* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (40 commits)
  DaVinci DM365: Adding support for SPI EEPROM
  DaVinci DM365: Adding DM365 SPI support
  DaVinci DM355: Modifications to DM355 SPI support
  DaVinci: SPI: Adding header file for SPI support.
  davinci: dm646x: CDCE clocks: davinci_clk converted to clk_lookup
  davinci: clkdev cleanup: remove clk_lookup wrapper, use clkdev_add_table()
  DaVinci: DM365: Voice codec support for the DM365 SoC
  davinci: clock: let clk->set_rate function sleep
  Add SDA and SCL pin numbers to i2c platform data
  davinci: da8xx/omap-l1xx: Add EDMA platform data for da850/omap-l138
  davinci: build list of unused EDMA events dynamically
  davinci: Fix edma_alloc_channel api for EDMA_CHANNEL_ANY case
  davinci: Keep count of channel controllers on a platform
  davinci: Correct return value of edma_alloc_channel api
  davinci: add CDCE949 support on DM6467 EVM
  davinci: add support for CDCE949 clock synthesizer
  davinci: da850/omap-l138 EVM: register for suspend support
  davinci: da850/omap-l138: add support for SoC suspend
  davinci: add power management support
  DaVinci: DM365: Changing default queue for DM365.
  ...

14 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Mon, 1 Mar 2010 21:04:58 +0000 (13:04 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (38 commits)
  sata_via: Delay on vt6420 when starting ATAPI DMA write
  ata: Detect Delkin Devices compact flash
  pata_efar: Enable parallel scanning
  pata_atiixp: enable parallel scan
  [libata] pata_atiixp: add locking for parallel scanning
  [libata] pata_efar: add locking for parallel scanning
  libata: Pass host flags into the pci helper
  [libata] pata_marvell: CONFIG_AHCI is really CONFIG_SATA_AHCI
  libata: Allow pata_legacy to be built on non-ISA but PCI systems
  pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets
  pata_pdc202xx_old: fix UDMA mode for Promise UDMA33 cards
  [libata] pata_at91: fix backslash-continued string
  pata_via: store UDMA masks in via_isa_bridges table
  pata_via: fix address setup timings underlocking
  pata_serverworks: fix error message
  pata_serverworks: fix PIO setup for the second channel
  pata_efar: fix secondary port support
  pata_cypress: fix PIO timings underclocking
  pata_cs5535: use correct values for PIO1 and PIO2 data timings
  pata_cmd64x: remove unused definitions
  ...

14 years agosata_via: Delay on vt6420 when starting ATAPI DMA write
Bart Hartgers [Sun, 14 Feb 2010 12:04:50 +0000 (13:04 +0100)]
sata_via: Delay on vt6420 when starting ATAPI DMA write

When writing a disc on certain lite-on dvd-writers (also rebadged
as optiarc/LG/...) connected to a vt6420, the ATAPI CDB ends
up in the datastream and on the disc, causing silent corruption.
Delaying between sending the CDB and starting DMA seems to
prevent this.

I do not know if there are burners that do not suffer from
this, but the patch should be safe for those as well.

There are many reports of this issue, but AFAICT no solution was
found before. For example:
http://lkml.indiana.edu/hypermail/linux/kernel/0802.3/0561.html

Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoata: Detect Delkin Devices compact flash
Ben Gardner [Tue, 23 Feb 2010 18:41:22 +0000 (12:41 -0600)]
ata: Detect Delkin Devices compact flash

I have a Delkin Devices compact flash card that isn't being recognized using the
SATA/PATA drivers.
The card is recognized and works with the deprecated ATA drivers.

The error I am seeing is:
ata1.00: failed to IDENTIFY (device reports invalid type, err_mask=0x0)

I tracked it down to ata_id_is_cfa() in include/linux/ata.h.
The Delkin card has id[0] set to 0x844a and id[83] set to 0.
This isn't what the kernel expects and is probably incorrect.

The simplest work-around is to add a check for 0x844a to ata_id_is_cfa().

Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_efar: Enable parallel scanning
Alan Cox [Wed, 17 Feb 2010 13:17:52 +0000 (13:17 +0000)]
pata_efar: Enable parallel scanning

Again originally proposed by Bartlomiej but this does it by using the
generic helper logic instead.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_atiixp: enable parallel scan
Alan Cox [Wed, 17 Feb 2010 13:17:44 +0000 (13:17 +0000)]
pata_atiixp: enable parallel scan

This was originally proposed by Bartlomiej but as a device specific
expansion of the init_one function rather than making the helper more
generic.

Enable the parallel scan via the generic flags.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years ago[libata] pata_atiixp: add locking for parallel scanning
Bartlomiej Zolnierkiewicz [Wed, 17 Feb 2010 13:17:31 +0000 (13:17 +0000)]
[libata] pata_atiixp: add locking for parallel scanning

This is similar change as commit 60c3be3 for ata_piix host driver
and while pata_atiixp doesn't enable parallel scan yet the race
could probably also be triggered by requesting re-scanning of both
ports at the same time using SCSI sysfs interface.

[Ported to current tree without other patch dependancies by Alan Cox]

Original is
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This one is
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years ago[libata] pata_efar: add locking for parallel scanning
Bartlomiej Zolnierkiewicz [Wed, 17 Feb 2010 13:16:58 +0000 (13:16 +0000)]
[libata] pata_efar: add locking for parallel scanning

Add clearing of UDMA enable bit also for PIO modes and then add
extra locking for parallel scanning.

This is similar change as commit 60c3be3 for ata_piix host driver
and while pata_efar doesn't enable parallel scan yet the race could
probably also be triggered by requesting re-scanning of both ports
at the same time using SCSI sysfs interface.

[Ported to current kernel without other patch dependancies by
 Alan Cox]

Original is
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This one is
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibata: Pass host flags into the pci helper
Alan Cox [Tue, 23 Feb 2010 07:26:06 +0000 (02:26 -0500)]
libata: Pass host flags into the pci helper

This allows parallel scan and the like to be set without having to stop
using the existing full helper functions. This patch merely adds the argument
and fixes up the callers. It doesn't undo the special cases already in the
tree or add any new parallel callers.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years ago[libata] pata_marvell: CONFIG_AHCI is really CONFIG_SATA_AHCI
Christoph Egger [Fri, 5 Feb 2010 15:26:35 +0000 (16:26 +0100)]
[libata] pata_marvell: CONFIG_AHCI is really CONFIG_SATA_AHCI

The marvell driver comtains a fallback to ahci for the sata ports
which is incorrectly checked as CONFIG_AHCI while the only AHCI config
item is actually called SATA_AHCI (which also sounds sensible
considering it's a fallback for the sata ports).

Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibata: Allow pata_legacy to be built on non-ISA but PCI systems
Alan Cox [Mon, 8 Feb 2010 10:04:54 +0000 (10:04 +0000)]
libata: Allow pata_legacy to be built on non-ISA but PCI systems

This is needed for some unsupported hardware setups on strange 64bit
mainboards where crazy stuff has been done like putting flash ata adapters
on the LPC bus, or where the real hardware is hidden/confused.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets
Bartlomiej Zolnierkiewicz [Sat, 13 Feb 2010 22:43:17 +0000 (17:43 -0500)]
pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets

PDC2026x chipsets need the same treatment as PDC20246 one.

This is completely untested but will hopefully fix UDMA issues
that people have been reporting against pata_pdc202xx_old for
the last couple of years.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_pdc202xx_old: fix UDMA mode for Promise UDMA33 cards
Bartlomiej Zolnierkiewicz [Sat, 13 Feb 2010 13:35:53 +0000 (14:35 +0100)]
pata_pdc202xx_old: fix UDMA mode for Promise UDMA33 cards

On Monday 04 January 2010 02:30:24 pm Russell King wrote:

> Found the problem - getting rid of the read of the alt status register
> after the command has been written fixes the UDMA CRC errors on write:
>
> @@ -676,7 +676,8 @@ void ata_sff_exec_command(struct ata_port *ap, const struct
> ata_taskfile *tf)
>         DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
>
>         iowrite8(tf->command, ap->ioaddr.command_addr);
> -       ata_sff_pause(ap);
> +       ndelay(400);
> +//     ata_sff_pause(ap);
>  }
>  EXPORT_SYMBOL_GPL(ata_sff_exec_command);
>
>
> This rather makes sense.  The PDC20247 handles the UDMA part of the
> protocol.  It has no way to tell the PDC20246 to wait while it suspends
> UDMA, so that a normal register access can take place - the 246 ploughs
> on with the register access without any regard to the state of the 247.
>
> If the drive immediately starts the UDMA protocol after a write to the
> command register (as it probably will for the DMA WRITE command), then
> we'll be accessing the taskfile in the middle of the UDMA setup, which
> can't be good.  It's certainly a violation of the ATA specs.

Fix it by adding custom ->sff_exec_command method for UDMA33 chipsets.

Debugged-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years ago[libata] pata_at91: fix backslash-continued string
Jeff Garzik [Thu, 4 Feb 2010 06:09:54 +0000 (01:09 -0500)]
[libata] pata_at91: fix backslash-continued string

Noticed and rough patch by Joe Perches.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_via: store UDMA masks in via_isa_bridges table
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:17:12 +0000 (18:17 +0100)]
pata_via: store UDMA masks in via_isa_bridges table

* store UDMA masks in via_isa_bridges[] and while at it make "flags"
  field to be u8 instead of u16

* convert the driver to use UDMA masks from via_isa_bridges[]

* remove no longer needed VIA_UDMA* defines

Make some minor documentation and CodingStyle fixes while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_via: fix address setup timings underlocking
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:17:03 +0000 (18:17 +0100)]
pata_via: fix address setup timings underlocking

Correct via_do_set_mode() documentation while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_serverworks: fix error message
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:16:46 +0000 (18:16 +0100)]
pata_serverworks: fix error message

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_serverworks: fix PIO setup for the second channel
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:16:38 +0000 (18:16 +0100)]
pata_serverworks: fix PIO setup for the second channel

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_efar: fix secondary port support
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:16:03 +0000 (18:16 +0100)]
pata_efar: fix secondary port support

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_cypress: fix PIO timings underclocking
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:47 +0000 (18:15 +0100)]
pata_cypress: fix PIO timings underclocking

Timing registers should be programmed with the desired number of clocks
minus one clock.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_cs5535: use correct values for PIO1 and PIO2 data timings
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:38 +0000 (18:15 +0100)]
pata_cs5535: use correct values for PIO1 and PIO2 data timings

There shouldn't be any problems with it as IDE cs5535 host driver
has been using those values for years and they match values given
in the (publicly available) datasheet.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_cmd64x: remove unused definitions
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:18 +0000 (18:15 +0100)]
pata_cmd64x: remove unused definitions

s/ARTIM2/ARTTIM23/ in cmd648_bmdma_stop() while at it

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_cmd64x: cmd648_bmdma_stop() fix
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:11 +0000 (18:15 +0100)]
pata_cmd64x: cmd648_bmdma_stop() fix

Clear the primary channel pending interrupt bit
instead of the reserved one.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_cmd64x: fix handling of address setup timings
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:04 +0000 (18:15 +0100)]
pata_cmd64x: fix handling of address setup timings

Account for the requirements of the DMA mode currently used
by the pair device.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_cmd64x: fix PIO setup
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:14:55 +0000 (18:14 +0100)]
pata_cmd64x: fix PIO setup

Fix incorrect handling of recovery clocks value == 16 resulting
in overclocked recovery timings & potentially underclocked active
timings.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_ali: documentation fixes
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:14:05 +0000 (18:14 +0100)]
pata_ali: documentation fixes

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibata: fix CFA handling in ide_timing_compute()
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:13:57 +0000 (18:13 +0100)]
libata: fix CFA handling in ide_timing_compute()

Use standard cycle timing for CFA PIO5 and PIO6 modes.

Based on commit 74638c8 for IDE subsystem.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agosata_via: Correctly setup PIO/DMA for pata slave on vt6421.
Bart Hartgers [Sat, 16 Jan 2010 23:56:54 +0000 (00:56 +0100)]
sata_via: Correctly setup PIO/DMA for pata slave on vt6421.

Before only the timings for master were set. Datasheet can be found
here: ftp://ftp.vtbridge.org/Docs/Storage/DS_VT6421A_100_CCPL.PDF
Surprisingly, a slave drive works without this patch. According to the
datasheet, the controller by default derives the DMA mode from the
Set Features command issued to a drive. Not sure about the PIO
timings, though. The real problem is that the timings for the master
effectively are the ones tuned for the slave. If these support
different UDMA-settings, there is trouble, especially when the slave
supports a higher UDMA than the master.

Anyhow, using the same mechanism for both master and slave seems like
a good idea.

Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibata: make functions/variables static
Robert Hancock [Wed, 20 Jan 2010 05:03:39 +0000 (23:03 -0600)]
libata: make functions/variables static

Make some variables in ahci and a function in pata_pcmcia static, as found
using sparse.

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibata: implement spurious irq handling for SFF and apply it to piix
Tejun Heo [Tue, 19 Jan 2010 01:49:19 +0000 (10:49 +0900)]
libata: implement spurious irq handling for SFF and apply it to piix

Traditional IDE interface sucks in that it doesn't have a reliable IRQ
pending bit, so if the controller raises IRQ while the driver is
expecting it not to, the IRQ won't be cleared and eventually the IRQ
line will be killed by interrupt subsystem.  Some controllers have
non-standard mechanism to indicate IRQ pending so that this condition
can be detected and worked around.

This patch adds an optional operation ->sff_irq_check() which will be
called for each port from the ata_sff_interrupt() if an unexpected
interrupt is received.  If the operation returns %true,
->sff_check_status() and ->sff_irq_clear() will be cleared for the
port.  Note that this doesn't mark the interrupt as handled so it
won't prevent IRQ subsystem from killing the IRQ if this mechanism
fails to clear the spurious IRQ.

This patch also implements ->sff_irq_check() for ata_piix.  Note that
this adds slight overhead to shared IRQ operation as IRQs which are
destined for other controllers will trigger extra register accesses to
check whether IDE interrupt is pending but this solves rare screaming
IRQ cases and for some curious reason also helps weird BIOS related
glitch on Samsung n130 as reported in bko#14314.

  http://bugzilla.kernel.org/show_bug.cgi?id=14314

* piix_base_ops dropped as suggested by Sergei.

* Spurious IRQ detection doesn't kick in anymore if polling qc is in
  progress.  This provides less protection but some controllers have
  possible data corruption issues if the wrong register is accessed
  while a command is in progress.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Johannes Stezenbach <js@sig21.net>
Reported-by: Hans Werner <hwerner4@gmx.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agolibata: cleanup ata_sff_interrupt()
Tejun Heo [Tue, 19 Jan 2010 01:46:32 +0000 (10:46 +0900)]
libata: cleanup ata_sff_interrupt()

host->ports[i] is never NULL if i < host->n_ports and non-NULL return
from ata_qc_from_tag() guarantees that the returned qc is active.
Drop unnecessary tests.

Superflous () dropped as suggested by Sergei.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoata_piix: IDE Mode SATA patch for Intel Cougar Point DeviceIDs
Seth Heasley [Wed, 13 Jan 2010 01:01:28 +0000 (17:01 -0800)]
ata_piix: IDE Mode SATA patch for Intel Cougar Point DeviceIDs

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoahci: AHCI and RAID mode SATA patch for Intel Cougar Point DeviceIDs
Seth Heasley [Wed, 13 Jan 2010 01:00:18 +0000 (17:00 -0800)]
ahci: AHCI and RAID mode SATA patch for Intel Cougar Point DeviceIDs

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoahci: Implement SATA AHCI FIS-based switching support
Shane Huang [Wed, 9 Dec 2009 09:23:04 +0000 (17:23 +0800)]
ahci: Implement SATA AHCI FIS-based switching support

Tested on AMD internal reference board.

Signed-off-by: Shane Huang <shane.huang@amd.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_hpt366: remove irrelevant TODO
Sergei Shtylyov [Mon, 7 Dec 2009 19:39:38 +0000 (23:39 +0400)]
pata_hpt366: remove irrelevant TODO

HPT36x chips just don't have DPLL.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_hpt{37x|3x2n}: improve timing register documentation
Sergei Shtylyov [Mon, 7 Dec 2009 19:38:11 +0000 (23:38 +0400)]
pata_hpt{37x|3x2n}: improve timing register documentation

Describe UDMA timing bits 18-20 and 21 separately; add a note to bit
31 about it being meaningful for PIO only.  Reformat the whole comment,
while at it...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_hpt366: remove redundant code
Sergei Shtylyov [Mon, 7 Dec 2009 19:36:15 +0000 (23:36 +0400)]
pata_hpt366: remove redundant code

There's no need to clear the fast interrupt bit in hpt366_set_mode()
since we're doing it in hpt366_init_chipset() already.

While at it, rename 'addr1' local variable to 'addr' and
exclude 'ap->port_no' from its calculation as HPT36x are
single-channel-per-function chips.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_hpt{37x|3x2n}: unify mode programming
Sergei Shtylyov [Mon, 7 Dec 2009 19:30:06 +0000 (23:30 +0400)]
pata_hpt{37x|3x2n}: unify mode programming

As these drivers' set_piomode() and set_dmamode() methods are almost
identical, factor out the common hpt{37x|3x2n}_set_mode() function
to be called by both of them, the same as in 'pata_hpt366' driver.

This results in ~5% decrease in the 'pata_hpt37x' driver binary
size and in ~4% decrease in the 'pata_hpt3x2n' driver binary size
(as measured on x86-32).

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_hpt3x2n: always stretch UltraDMA timing
Sergei Shtylyov [Mon, 7 Dec 2009 19:25:52 +0000 (23:25 +0400)]
pata_hpt3x2n: always stretch UltraDMA timing

The UltraDMA Tss timing must be stretched with ATA clock of 66 MHz, but the
driver only does this when PCI clock is 66 MHz, whereas it always programs
DPLL clock (which is used as the ATA clock) to 66 MHz.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: <stable@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agopata_hpt37x: use ATA_DMA_* constants
Sergei Shtylyov [Fri, 4 Dec 2009 20:37:43 +0000 (00:37 +0400)]
pata_hpt37x: use ATA_DMA_* constants

Use ATA_DMA_* constants instead of the bare numbers for the BMIDE registers.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Mon, 1 Mar 2010 18:38:09 +0000 (10:38 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (62 commits)
  Input: atkbd - release previously reserved keycodes 248 - 254
  Input: add KEY_WPS_BUTTON definition
  Input: ads7846 - add regulator support
  Input: winbond-cir - fix suspend/resume
  Input: gamecon - use pr_err() and friends
  Input: gamecon - constify some of the setup structures
  Input: gamecon - simplify pad type handling
  Input: gamecon - simplify coordinate calculation for PSX
  Input: gamecon - fix some formatting issues
  Input: gamecon - add rumble support for N64 pads
  Input: wacom - add device type to device name string
  Input: s3c24xx_ts - report touch only when stylus is down
  Input: s3c24xx_ts - re-enable IRQ on resume
  Input: wacom - constify product features data
  Input: wacom - use per-device instance of wacom_features
  Input: sh_keysc - enable building on SH-Mobile ARM
  Input: wacom - get features from driver info
  Input: rotary-encoder - set gpio direction for each requested gpio
  Input: sh_keysc - update the driver with mode 6
  Input: sh_keysc - switch to using bitmaps
  ...

14 years agoMerge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Mon, 1 Mar 2010 18:36:22 +0000 (10:36 -0800)]
Merge branch 'acpica' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: replace acpi_integer by u64
  ACPICA: Update version to 20100121.
  ACPICA: Remove unused uint32_struct type
  ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object
  ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type
  ACPICA: Predefined name repair: fix NULL package elements
  ACPICA: AcpiGetDevices: Eliminate unnecessary _STA calls
  ACPICA: Update all ACPICA copyrights and signons to 2010
  ACPICA: Update for new gcc-4 warning options

14 years agoDaVinci DM365: Adding support for SPI EEPROM
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:45 +0000 (09:51 -0500)]
DaVinci DM365: Adding support for SPI EEPROM

The DM365 Spectrum Digital EVM comes with an EEPROM
connected to SPI0.
This patch adds support for the SPI EEPROM.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
14 years agoDaVinci DM365: Adding DM365 SPI support
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:31 +0000 (09:51 -0500)]
DaVinci DM365: Adding DM365 SPI support

This patch adds SPI init for DM365.
It does the following
1) Initializes SPI0
2) Defines resources to be used by SPI0
3) Adds platform data for SPI0

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
14 years agoDaVinci DM355: Modifications to DM355 SPI support
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:15 +0000 (09:51 -0500)]
DaVinci DM355: Modifications to DM355 SPI support

This patch does the following

1) Minor change to the SPI clocks making it
similar to DM365.
2) Changing the interrupt used by SPI0
3) Adding EDMA resources that can be used by SPI0
4) Adding platform specific data.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
14 years agoDaVinci: SPI: Adding header file for SPI support.
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:02 +0000 (09:51 -0500)]
DaVinci: SPI: Adding header file for SPI support.

This patch adds "spi.h" header file that will be used by board and
architecture specific code.

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>