linux.git/drivers/misc/eeprom, branch v5.9-rc2

misc: eeprom: at24: Tell the compiler that ACPI functions may not be used

2020-07-10T12:50:51+00:00

... as is the case when !CONFIG_ACPI.

Fixes the following W=1 kernel build warning:

 drivers/misc/eeprom/at24.c:228:36: warning: ‘at24_acpi_ids’ defined but not used [-Wunused-const-variable=]

Signed-off-by: Lee Jones 
Acked-by: Bartosz Golaszewski 
Link: https://lore.kernel.org/r/20200701093616.GX1179328@dell
Signed-off-by: Greg Kroah-Hartman

misc: eeprom: eeprom_93cx6: Repair function arg descriptions

2020-06-29T16:45:52+00:00

Copy-paste issue.  Looks like the kerneldoc style descriptions for
these functions were taken from existing functions with slightly
different argument names.

Fixes the following W=1 warnings:

 drivers/misc/eeprom/eeprom_93cx6.c:239: warning: Function parameter or member 'byte' not described in 'eeprom_93cx6_readb'
 drivers/misc/eeprom/eeprom_93cx6.c:239: warning: Excess function parameter 'word' description in 'eeprom_93cx6_readb'
 drivers/misc/eeprom/eeprom_93cx6.c:280: warning: Function parameter or member 'bytes' not described in 'eeprom_93cx6_multireadb'
 drivers/misc/eeprom/eeprom_93cx6.c:280: warning: Excess function parameter 'words' description in 'eeprom_93cx6_multireadb'

Cc: Wolfram Sang 
Acked-by: Arnd Bergmann 
Signed-off-by: Lee Jones 
Link: https://lore.kernel.org/r/20200626130525.389469-7-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman

Merge tag 'v5.6-rc7' into i2c/for-5.7

2020-03-26T11:09:58+00:00

Linux 5.6-rc7

misc: eeprom: at24: fix regulator underflow

2020-03-12T08:02:34+00:00

The at24 driver attempts to read a byte from the device to validate that
it's actually present, and if not, disables the vcc regulator and
returns -ENODEV. However, between the read and the error handling path,
pm_runtime_idle() is called and invokes the driver's suspend callback,
which also disables the vcc regulator. This leads to an underflow of the
regulator enable count if the EEPROM is not present.

Move the pm_runtime_suspend() call to be after the error handling path
to resolve this.

Fixes: cd5676db0574 ("misc: eeprom: at24: support pm_runtime control")
Signed-off-by: Michael Auchter 
Signed-off-by: Bartosz Golaszewski

eeprom: at24: add TPF0001 ACPI ID for 24c1024 device

2020-02-10T10:03:39+00:00

This ID is used at leas on some variants of MSC C6B-SLH board.

Signed-off-by: Markus Pietrek 
Signed-off-by: Oleksij Rempel 
Signed-off-by: Bartosz Golaszewski

misc: eeprom: at24: support pm_runtime control

2020-01-23T11:52:57+00:00

Although in the most platforms, the power of eeprom are alway
on, some platforms disable the eeprom power in order to meet
low power request. This patch add the pm_runtime ops to control
power to support all platforms.

Signed-off-by: Bibby Hsieh 
[Bartosz: rebased on top of current at24/for-next]
Signed-off-by: Bartosz Golaszewski

eeprom: at24: remove the write-protect pin support

2020-01-09T09:51:13+00:00

NVMEM framework is an interface for the at24 EEPROMs as well as for
other drivers, instead of passing the wp-gpios over the different
drivers each time, it would be better to pass it over the NVMEM
subsystem once and for all.

Removing the support for the write-protect pin after adding it to the
NVMEM subsystem.

Signed-off-by: Khouloud Touil 
Reviewed-by: Linus Walleij 
Signed-off-by: Bartosz Golaszewski

eeprom: at24: sort headers alphabetically

2020-01-02T16:56:32+00:00

For consistency and easier maintenance: sort the headers alphabetically.

Signed-off-by: Bartosz Golaszewski

eeprom: at24: update the license tag

2020-01-02T16:14:32+00:00

The current GPL v2.0 or later SPDX tag is 'GPL-2.0-or-later' as defined
at https://spdx.org/licenses/.

Signed-off-by: Bartosz Golaszewski

Merge branch 'i2c/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2019-12-02T02:29:36+00:00

Pull i2c updates from Wolfram Sang:
 "I2C has mostly driver updates this time.

  The few noteworthy changes are: the core has now support for analog
  and digital filters with at91 being the first user, a core addition to
  replace the NULL returning i2c_new_probed_device() with an ERR_PTR
  variant, and the pxa driver has finally being moved to use the generic
  I2C slave interface. We have quite a significant number of reviews per
  patch this time, so thank you to all involved!"

* 'i2c/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits)
  video: fbdev: matrox: convert to i2c_new_scanned_device
  i2c: icy: convert to i2c_new_scanned_device
  i2c: replace i2c_new_probed_device with an ERR_PTR variant
  i2c: Fix Kconfig indentation
  i2c: smbus: Don't filter out duplicate alerts
  i2c: i801: Correct Intel Jasper Lake SOC naming
  i2c: i2c-stm32f7: fix 10-bits check in slave free id search loop
  i2c: iproc: Add i2c repeated start capability
  i2c: remove helpers for ref-counting clients
  i2c: tegra: Use dma_request_chan() directly for channel request
  i2c: sh_mobile: Use dma_request_chan() directly for channel request
  i2c: qup: Use dma_request_chan() directly for channel request
  i2c: at91: Use dma_request_chan() directly for channel request
  i2c: rcar: Remove superfluous call to clk_get_rate()
  i2c: pxa: remove unused i2c-slave APIs
  i2c: pxa: migrate to new i2c_slave APIs
  i2c: cros-ec-tunnel: Make the device acpi compatible
  i2c: stm32f7: report dma error during probe
  i2c: icy: no need to populate address for scanned device
  i2c: xiic: Fix kerneldoc warnings
  ...