linux-toradex.git/drivers/i2c/busses, branch v2.6.32.15

i2c-i801: Add Intel Cougar Point device IDs

2010-04-26T14:41:32+00:00

commit 393764340beb595c1ad7dd2d2243c2b6551aaa71 upstream.

Add the Intel Cougar Point (PCH) SMBus controller device IDs.

Signed-off-by: Seth Heasley 
Signed-off-by: Jean Delvare 
Cc: maximilian attems 
Signed-off-by: Greg Kroah-Hartman

i2c-i801: Don't use the block buffer for I2C block writes

2010-04-01T22:58:07+00:00

commit c074c39d62306efa5ba7c69c1a1531bc7333d252 upstream.

Experience has shown that the block buffer can only be used for SMBus
(not I2C) block transactions, even though the datasheet doesn't
mention this limitation.

Reported-by: Felix Rubinstein 
Signed-off-by: Jean Delvare 
Cc: Oleg Ryjkov 
Signed-off-by: Greg Kroah-Hartman

i2c-tiny-usb: Fix on big-endian systems

2010-02-23T15:37:48+00:00

commit 1c010ff8912cbc08d80e865aab9c32b6b00c527d upstream.

The functionality bit vector is always returned as a little-endian
32-bit number by the device, so it must be byte-swapped to the host
endianness.

On the other hand, the delay value is handled by the USB stack, so no
byte swapping is needed on our side.

This fixes bug #15105:
http://bugzilla.kernel.org/show_bug.cgi?id=15105

Reported-by: Jens Richter 
Signed-off-by: Jean Delvare 
Tested-by: Jens Richter 
Cc: Till Harbaum 
Signed-off-by: Greg Kroah-Hartman

i2c/pca: Don't use *_interruptible

2010-01-22T23:18:35+00:00

commit 22f8b2695eda496026623020811cae34590ee3d7 upstream.

Unexpected signals can disturb the bus-handling and lock it up. Don't use
interruptible in 'wait_event_*' and 'wake_*' as in commits
dc1972d02747d2170fb1d78d114801f5ecb27506 (for cpm),
1ab082d7cbd0f34e39a5396cc6340c00bc5d66ef (for mpc),
b7af349b175af45f9d87b3bf3f0a221e1831ed39 (for omap).

Signed-off-by: Wolfram Sang 
Signed-off-by: Jean Delvare 
Signed-off-by: Greg Kroah-Hartman

ARM: PNX4008: i2c-pnx: use the same dev_id for request_irq and free_irq

2009-11-21T19:01:05+00:00

This allows i2c-pnx to free its interrupt handler when the module
is removed or if an error occurs; using the same dev_id for both
request_irq and free_irq is desirable.

Signed-off-by: Russell King 
Acked-by: Ben Dooks

i2c: i2c-pnx: Added missing mach/i2c.h and linux/io.h header file includes

2009-11-20T00:25:42+00:00

Added missing mach/i2c.h and linux/io.h header file includes

Signed-off-by: Kevin Wells 
Signed-off-by: Ben Dooks

i2c: i2c-pnx: Limit minimum jiffie timeout to 2

2009-11-20T00:25:41+00:00

Limit minimum jiffie timeout to 2 to prevent early timeout on systems
with low tick rates

Signed-off-by: Kevin Wells 
Signed-off-by: Ben Dooks

i2c-piix4: Modify code name SB900 to Hudson-2

2009-11-07T12:10:46+00:00

Change SB900 to its formal code name Hudson-2.

Signed-off-by: Crane Cai 
Signed-off-by: Jean Delvare

i2c-mpc: Do not generate STOP after read.

2009-11-02T23:28:47+00:00

The driver always ends a read with a STOP condition which
breaks subsequent I2C reads/writes in the same transaction as
these expect to do a repeated START(ReSTART).

This will also help I2C multimaster as the bus will not be released
after the first read, but when the whole transaction ends.

Signed-off-by: Joakim Tjernlund 
Signed-off-by: Ben Dooks

i2c: imx: disable clock when it's possible to save power.

2009-11-02T23:28:47+00:00

Enable clock before START, disable it after STOP.

Signed-off-by: Richard Zhao 
Signed-off-by: Ben Dooks