user/sven/linux.git/drivers/w1, branch v3.18.78

w1_therm reference count family data

2015-07-04T03:02:19Z

[ Upstream commit f7134eea05b2fb4a2c0935f8a540539fff01f3eb ] A temperature conversion can take 750 ms and when possible the w1_therm slave driver drops the bus_mutex to allow other bus operations, but that includes operations such as a periodic slave search, which can remove this slave when it is no longer detected. If that happens the sl->family_data will be freed and set to NULL causing w1_slave_show to crash when it wakes up. Signed-off-by: David Fries Reported-By: Thorsten Bschorr Tested-by: Thorsten Bschorr Acked-by: Evgeniy Polyakov Cc: stable Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

w1: select crc16 library for ds2406

2014-06-23T16:38:08Z

commit 94859308a21b "w1: new w1_ds2406 driver" added a new driver that uses the crc16 library, but didn't ensure that the core is there. This adds the necessary Kconfig statements, just like we have it for other w1 drivers. Reported-by: kbuild test robot Signed-off-by: Arnd Bergmann Acked-by: Scott Alfter Cc: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1/masters: use pr_* instead of printk

2014-06-20T00:46:51Z

This patch replaces all calls to the "printk" function within the "masters" subdirectory by calls to the appropriate "pr_*" function thus addressing the following warning generated by the checkpatch script: WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Fjodor Schelichow Signed-off-by: Roman Sommer Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1: use pr_* instead of printk

2014-06-20T00:46:51Z

This patch replaces all calls to the "printk" function within the main "w1" directory by calls to the appropriate "pr_*" function thus addressing the following warning generated by the checkpatch script: WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Fjodor Schelichow Signed-off-by: Roman Sommer Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1/slaves: use pr_* instead of printk

2014-06-20T00:46:51Z

This patch replaces all calls to the "printk" function within the "slaves" subdirectory by calls to the appropriate "pr_*" function thus addressing the following warning generated by the checkpatch script: WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Fjodor Schelichow Signed-off-by: Roman Sommer Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1: new w1_ds2406 driver

2014-06-20T00:45:14Z

Some preliminary work at making use of this driver led me to implement CRC-16 checks on read and write to deal with the occasional glitchiness of the 1-Wire bus. The revised driver (attached) returns an I/O error if the CRC check fails. When reading the chip's state, either you get a valid indication or you get an I/O error. When changing its state, either the change is successful or an I/O error is returned. Signed-off-by: Scott Alfter Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

drivers/w1/w1_int.c: Fix style errors.

2014-06-20T00:45:13Z

Replace spaces at beginning of the string with tabs, and replace foo * bar with foo *bar in a pointer declaration. Signed-off-by: Thomas Wood Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1: mxc_w1: Optimize mxc_w1_ds2_touch_bit()

2014-06-20T00:43:34Z

According to the i.MX reference manual, the read/write bit operations takes from 60 us to 120 us. This patch optimizes mxc_w1_ds2_touch_bit() function to use proper value for such delay. Nevertheless, a small margin for the timeout has been added for the case if clock frequency is inaccurate. Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

w1: mxc_w1: Perform a software reset at startup

2014-06-20T00:43:34Z

This patch adds a software reset for 1-Wire module at driver startup. Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

w1: mxc_w1: Optimize mxc_w1_ds2_reset_bus()

2014-06-20T00:43:34Z

According to the i.MX reference manual, the reset procedure and "presence" pulse takes 511 and 512 us, respectively. Measurement for i.MX27 is about 1100 us. There is no need to wait Reset+Presence more than this time. This patch optimizes mxc_w1_ds2_reset_bus() function to use proper value for delay after w1 bus reset. Nevertheless, a small margin for the timeout has been added for the case if clock frequency is inaccurate. Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman