linux.git/drivers/spi, branch v2.6.29

spi-gpio: sanitize MISO bitvalue

2009-02-18T23:37:56+00:00

gpio_get_value() returns 0 or nonzero, but getmiso() expects 0 or 1.
Sanitize the value to a 0/1 boolean.

Signed-off-by: Michael Buesch 
Acked-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

spi: Move at25 (for SPI eeproms) to /drivers/misc/eeprom

2009-01-26T20:19:54+00:00

Signed-off-by: Wolfram Sang 
Signed-off-by: Jean Delvare

atmel_spi: allow transfer when max_speed_hz = 0

2009-01-16T00:39:35+00:00

For some reason I have to slowdown clock to touchscreen device.

In atmel_spi_setup() there is comment that max_speed_hz == 0 means as slow
as possible and divider is set to maximum value.  But in
atmel_spi_transfer() function is check against not zero max_speed_hz with
EINVAL returned.

Probably driver should setup divider for each transfer based on
transfer->speed_hz value, but I think that would be not necessary overhead
as all used devices have constant clock.

Below patch works fine for me.

Signed-off-by: Stanislaw Gruszka 
Signed-off-by: Haavard Skinnemoen 
Cc: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Xilinx: SPI: updated driver for device tree

2009-01-09T23:01:53+00:00

The driver was updated to use the device tree rather than the platform data.

Signed-off-by: John Linn

hwmon: (lm70) Code streamlining and cleanup

2009-01-07T15:37:34+00:00

This fixes a byteswap bug in the LM70 temperature sensor driver,
which was previously covered up by a converse bug in the driver
for the LM70EVAL-LLP board (which is also fixed).

Other fixes:  doc updates, remove an annoying msleep(), and improve
three-wire protocol handling.

Signed-off-by: Kaiwan N Billimoria 
[ dbrownell@users.sourceforge.net: doc and whitespace tweaks ]
Signed-off-by: David Brownell 
Signed-off-by: Jean Delvare

Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

2009-01-07T01:02:07+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (60 commits)
  uio: make uio_info's name and version const
  UIO: Documentation for UIO ioport info handling
  UIO: Pass information about ioports to userspace (V2)
  UIO: uio_pdrv_genirq: allow custom irq_flags
  UIO: use pci_ioremap_bar() in drivers/uio
  arm: struct device - replace bus_id with dev_name(), dev_set_name()
  libata: struct device - replace bus_id with dev_name(), dev_set_name()
  avr: struct device - replace bus_id with dev_name(), dev_set_name()
  block: struct device - replace bus_id with dev_name(), dev_set_name()
  chris: struct device - replace bus_id with dev_name(), dev_set_name()
  dmi: struct device - replace bus_id with dev_name(), dev_set_name()
  gadget: struct device - replace bus_id with dev_name(), dev_set_name()
  gpio: struct device - replace bus_id with dev_name(), dev_set_name()
  gpu: struct device - replace bus_id with dev_name(), dev_set_name()
  hwmon: struct device - replace bus_id with dev_name(), dev_set_name()
  i2o: struct device - replace bus_id with dev_name(), dev_set_name()
  IA64: struct device - replace bus_id with dev_name(), dev_set_name()
  i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name()
  infiniband: struct device - replace bus_id with dev_name(), dev_set_name()
  ISDN: struct device - replace bus_id with dev_name(), dev_set_name()
  ...

drivers/spi: move a dereference below a NULL test

2009-01-06T23:59:20+00:00

In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// 
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// 

Signed-off-by: Julia Lawall 
Acked-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

spi: use generic gpio calls in spi_s3c24xx_gpio

2009-01-06T23:59:19+00:00

Change the spi_s3c2410 driver to use the generic gpio calls that are now
available.

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

spi: atmel_spi update chipselect handling

2009-01-06T23:59:19+00:00

This solves several issues:
  * It fixes the wrong idle clock polarity issue in a cleaner and less
    expensive way.
  * It handles the AT32AP7000 errata "SPI Chip Select 0 BITS field
    overrides other Chip Selects". Other chips, e.g. AT91SAM9261, have
    similar issues.

Currently, the AT91RM9200 code path is left alone. But it might be
interesting to try the same technique on RM9200 using a different CSR
register.

[dbrownell@users.sourceforge.net: restore debug message for activation]
Signed-off-by: Haavard Skinnemoen 
Signed-off-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

atmel_spi: clean up SPIv1 quirk handling

2009-01-06T23:59:19+00:00

Currently, we have a flag called "new_1" which is basically equivalent
to cpu_is_at91rm9200(). The latter is also called directly a few places.

Clean up this mess by introducing a atmel_spi_v2() function for
determining the controller version, and move all version dependent code
over to use it. This allows us to remove the new_1 flag.

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