linux/drivers/w1, branch v4.9

w1: fix timeout_us parameter description

2016-08-31T11:56:05Z

Fix 'timeout_us' parameter description. Signed-off-by: Wei Yongjun Signed-off-by: Greg Kroah-Hartman

drivers: w1: style corrections-pointers-blanklines-comparisons

2016-08-31T11:56:04Z

Correct pointer notations to include whitespace between variable type and "*" character. Inserted blank line after variable declatations at two locations. Rearranged comparison within an if statment to have the constant on the right-hand side. Signed-off-by: Ben Werbowyj Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

drivers: w1: removed assignment from within if statement

2016-08-31T11:56:04Z

Assignment of variable count removed from within an if statment. This was done at two locations in the file. Signed-off-by: Ben Werbowyj Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

drivers: w1: style corrections for parenthesis and braces

2016-08-31T11:56:04Z

Inserted whitespace between command and open parenthesis at two locations. Removed new line between open brace and command/declaration at two locations. Signed-off-by: Ben Werbowyj Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1:omap_hdq: fix regression

2016-08-02T23:35:40Z

Commit e93762bbf681 ("w1: masters: omap_hdq: add support for 1-wire mode") added a statement to clear the hdq_irqstatus flags in hdq_read_byte(). If the hdq reading process is scheduled slowly or interrupts are disabled for a while the hardware read activity might already be finished on entry of hdq_read_byte(). And hdq_isr() already has set the hdq_irqstatus to 0x6 (can be seen in debug mode) denoting that both, the TXCOMPLETE and RXCOMPLETE interrupts occurred in parallel. This means there is no need to wait and the hdq_read_byte() can just read the byte from the hdq controller. By resetting hdq_irqstatus to 0 the read process is forced to be always waiting again (because the if statement always succeeds) but the hardware will not issue another RXCOMPLETE interrupt. This results in a false timeout. After such a situation the hdq bus hangs. Link: http://lkml.kernel.org/r/b724765f87ad276a69625bc19806c8c8844c4590.1469513669.git.hns@goldelico.com Signed-off-by: H. Nikolaus Schaller Cc: Evgeniy Polyakov Cc: Greg Kroah-Hartman Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

w1: add helper macro module_w1_family

2016-08-02T23:35:39Z

The helper macro module_w1_family can be used in module drivers that only register a w1 driver in their module init functions. Add this macro and use it in all applicable drivers. Link: http://lkml.kernel.org/r/20160531204313.20979-2-afd@ti.com Signed-off-by: Andrew F. Davis Acked-by: Evgeniy Polyakov Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

w1: remove need for ida and use PLATFORM_DEVID_AUTO

2016-08-02T23:35:39Z

PLATFORM_DEVID_AUTO can be used to have the platform core assign a unique ID instead of manually creating one with IDA. Do this in all applicable drivers. Link: http://lkml.kernel.org/r/20160531204313.20979-1-afd@ti.com Signed-off-by: Andrew F. Davis Acked-by: Evgeniy Polyakov Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

w1: add ability to set (SRAM) and store (EEPROM) configuration for temp sensors like DS18B20

2016-05-01T21:37:49Z

Since many temperature sensors come "preconfigured" with a lower precision, people are stuck at that precision when running on a kernel based device (unlike the Dallas 1Wire library for e.g. Arduino, which supports writing the configuration/scratchpad). This patch adds write support for the scratchpad/precision registers via w1_slave sysfs. Signed-off-by: Ben Sen <0.x29a.0@gmail.com> Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1: silence an uninitialized variable warning

2016-05-01T21:04:19Z

If kstrtoint() returns -ERANGE then "tmp" is uninitialized. Signed-off-by: Dan Carpenter Acked-by: Evgeniy Polaykov Signed-off-by: Greg Kroah-Hartman

w1: Spelling s/minmum/minimum/

2016-05-01T21:04:19Z

Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman