linux.git/include/linux/spi, branch v2.6.21

[PATCH] spi: destroy workqueue after spi_unregister_master

2007-03-17T02:25:04+00:00

Fix a bug in the cleanup of an spi_bitbang bus.

The workqueue associated with the bus was destroyed before the call to
spi_unregister_master.  That meant that spi devices on that bus would be
unable to do IO in their remove method.  The shutdown flag should have been
able to prevent a segfault, but was never getting set.  By waiting to
destroy the workqueue until after the master is unregistered, devices are
able to do IO in their remove methods.  An added benefit is that neither
the shutdown flag nor a wait for the queue of messages to empty is needed.

Signed-off-by: Chris Lesiak 
Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] SPI eeprom driver

2007-02-12T17:48:31+00:00

This is adds a simple SPI EEPROM driver, providing access to the EEPROM
through sysfs much like the I2C "eeprom" driver ...  except this driver
supports write access, and multiple EEPROM sizes.

From: "Tuppa, Walter" 

Since I have EEPROMs on SPI with different address sizing, I made some
changes to your at25.c to support them.  Works perfectly.  (Also includes a
small bugfix for the "what size address" test.)

Signed-off-by: David Brownell 
Signed-off-by: Walter Tuppa 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] SPI doc clarifications

2007-02-12T17:48:31+00:00

This clarifies some aspects of the SPI programming interface, based on
feedback from Hans-Peter Nilsson.  The in-memory representation of words is
right-aligned, so for example a twelve bit word is stored using sixteen bits
with four undefined bits in the MSB.  And controller drivers must reject
protocol tweaking modes they do not support.

Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] SPI cleanup() method param becomes non-const

2007-02-12T17:48:31+00:00

I'd like to assign NULL to kfree()d members of a structure.  I can't do
that without ugly casting (see the PXA patch) when the structure pointed to
is const-qualified.  I don't really see a reason why the cleanup method
isn't allowed to alter the object it should clean up.  :-)

No, I didn't test the PXA patch, but I verified that the NULL-assignment
doesn't stop me from doing rmmod/insmodding my own spi_bitbang-based
driver.

Signed-off-by: Hans-Peter Nilsson 
Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] spi: remove return in spi_unregister_driver()

2007-02-12T17:48:31+00:00

Make the spi_unregister_driver() code fit in with the rest of the header
file, and only do the action if the driver passed is non-NULL.

This also makes the code a line smaller.

Signed-off-by: Ben Dooks 
Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] spi: add spi_set_drvdata() and spi_get_drvdata()

2007-02-12T17:48:30+00:00

Add wrappers for getting and setting the driver data using spi_device
instead of using dev_{get|set}_drvdata with &spi->dev, to mirror the
platform_{get|set}_drvdata.

Signed-off-by: Ben Dooks 
Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

2007-02-10T06:26:32+00:00

Revert "Driver core: convert SPI code to use struct device"

2007-02-08T05:34:08+00:00

This reverts commit 2943ecf2ed32632473c06f1975db47a7aa98c10f.

This should go through the SPI maintainer, it was my fault that it did
not.  Especially as it conflicts with other patches he has pending.

Signed-off-by: Greg Kroah-Hartman

Driver core: convert SPI code to use struct device

2007-02-07T18:37:11+00:00

Converts from using struct "class_device" to "struct device" making
everything show up properly in /sys/devices/ with symlinks from the
/sys/class directory.

Cc: 
Signed-off-by: Greg Kroah-Hartman

Input: ads7846 - optionally leave Vref on during differential measurements

2007-01-18T05:45:21+00:00

On some LCDs leaving the Vref on provides much better readings.

Signed-off-by: Jarkko Oikarinen 
Signed-off-by: Imre Deak 
Signed-off-by: Juha Yrjola 
Signed-off-by: David Brownell 
Signed-off-by: Dmitry Torokhov