kernel/git/stable/linux.git/drivers/w1, branch linux-5.13.y

w1: ds2438: fixing bug that would always get page0

2021-07-20T14:00:14+00:00

[ Upstream commit 1f5e7518f063728aee0679c5086b92d8ea429e11 ] The purpose of the w1_ds2438_get_page function is to get the register values at the page passed as the pageno parameter. However, the page0 was hardcoded, such that the function always returned the page0 contents. Fixed so that the function can retrieve any page. Signed-off-by: Luiz Sampaio Link: https://lore.kernel.org/r/20210519223046.13798-5-sampaio.ime@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

w1: ds28e17: Use module_w1_family to simplify the code

2021-04-10T08:58:21+00:00

module_w1_family() makes the code simpler by eliminating boilerplate code. Signed-off-by: Chen Huang Link: https://lore.kernel.org/r/20210408130954.1158963-2-chenhuang5@huawei.com Signed-off-by: Greg Kroah-Hartman

w1: ds2805: Use module_w1_family to simplify the code

2021-04-10T08:58:21+00:00

module_w1_family() makes the code simpler by eliminating boilerplate code. Signed-off-by: Chen Huang Link: https://lore.kernel.org/r/20210408130954.1158963-1-chenhuang5@huawei.com Signed-off-by: Greg Kroah-Hartman

w1: slaves: Typo fixes

2021-03-24T07:26:30+00:00

s/mesured/measured/ .......twice Acked-by: Randy Dunlap Signed-off-by: Bhaskar Chowdhury Link: https://lore.kernel.org/r/20210319052554.966-1-unixbhaskar@gmail.com Signed-off-by: Greg Kroah-Hartman

w1: Use kobj_to_dev()[RESEND]

2021-03-24T07:26:30+00:00

Use kobj_to_dev() instead of open-coding it Signed-off-by: dongjian Link: https://lore.kernel.org/r/1615877987-32163-1-git-send-email-dj0227@163.com Signed-off-by: Greg Kroah-Hartman

w1: w1_therm: use clamp() in int_to_short()

2021-03-24T07:26:30+00:00

It's slightly cleaner to use the clamp() macro instead of open coding this. Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/YEedHNwqEH8fvjkD@mwanda Signed-off-by: Greg Kroah-Hartman

w1: w1_therm: Fix conversion result for negative temperatures

2021-01-27T13:59:16+00:00

DS18B20 device driver returns an incorrect value for negative temperatures due to a missing sign-extension in w1_DS18B20_convert_temp(). Fix by using s16 temperature value when converting to int. Fixes: 9ace0b4dab1c (w1: w1_therm: Add support for GXCAS GX20MH01 device.) Cc: stable Reported-by: Paweł Marciniak Signed-off-by: Ivan Zaentsev Link: https://lore.kernel.org/r/20210121093021.224764-1-ivan.zaentsev@wirenboard.ru Signed-off-by: Greg Kroah-Hartman

w1/masters/ds2490: queue up found IDs during scan

2021-01-20T17:50:21+00:00

Queue up found IDs in a buffer and run the callback once for each found ID at the end. This is necessary because we hold the bus_mutex during the whole scan, and some of the "add-device" callbacks deadlock as they themselves want to mutex_lock(bus_mutex). Acked-by: Evgeniy Polyakov Signed-off-by: Christian Vogel Link: https://lore.kernel.org/r/20210113195018.7498-3-vogelchr@vogel.cx Signed-off-by: Greg Kroah-Hartman

w1/w1.c: w1 address crc quick for DS28E04 eeproms

2021-01-20T17:50:21+00:00

Onewire addresses are 64bit family(8bit), unique_id(48bit), crc(8bit) (LSBt to MSB) and self-consistent: crc = crc8(family, unique). DS28E04-100 4096-Bit Addressable 1-Wire EEPROM with PIO have strap pins to set 7 LSB of the address, unfortunately without updating the crc part of the address. It is only consistent if all strap pins float high. [see datasheet 19-6134; Rev 12/11 page 6: 64-bit device id number] We therefore introduce a special handling of family 0x1c (DS28E04) to check address consistency with 7 LSBs of the unique_id set to 1. Acked-by: Evgeniy Polyakov Signed-off-by: Christian Vogel Link: https://lore.kernel.org/r/20210113195018.7498-2-vogelchr@vogel.cx Signed-off-by: Greg Kroah-Hartman

w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'

2020-11-12T07:50:13+00:00

Duplicate attribute 'eeprom' is defined in: 1) Documentation/ABI/testing/sysfs-driver-w1_therm 2) Documentation/ABI/stable/sysfs-driver-w1_ds28e04 Both drivers define an attribute: /sys/bus/w1/devices/.../eeprom with conflicting behavior. Fix by renaming the newer one in w1_therm.c to 'eeprom_cmd'. Reported-by: Mauro Carvalho Chehab Suggested-by: Greg Kroah-Hartman Link: https://lore.kernel.org/lkml/20201029152845.6bbb39ce@coco.lan/ Signed-off-by: Ivan Zaentsev Link: https://lore.kernel.org/r/20201112064931.8471-1-ivan.zaentsev@wirenboard.ru Signed-off-by: Greg Kroah-Hartman