linux.git/drivers/misc/eeprom/Kconfig, branch for-next

eeprom: Fix the cacography in Kconfig

2024-11-05T04:33:47+00:00

The word 'swtich' is wrong, so fix it.

Signed-off-by: Luo Yifan 
Link: https://lore.kernel.org/r/20241022062534.122428-1-luoyifan@cmss.chinamobile.com
Signed-off-by: Greg Kroah-Hartman

eeprom: ee1004: Add nvmem support

2024-07-04T10:02:56+00:00

Currently the driver does not register a nvmem provider, which means
that userspace programs cannot access the ee1004 EEPROM through the
standard nvmem sysfs API.
Fix this by replacing the custom sysfs attribute with a standard nvmem
interface, which also takes care of backwards compatibility.

Tested on a Dell Inspiron 3505.

Signed-off-by: Armin Wolf 
Link: https://lore.kernel.org/r/20240625063459.429953-2-W_Armin@gmx.de
Signed-off-by: Greg Kroah-Hartman

eeprom: Remove deprecated legacy eeprom driver

2023-10-05T09:09:40+00:00

Driver was marked deprecated 4 years ago, so it's time to remove it.
This driver is the only i2c client driver using class I2C_CLASS_SPD.
Apparently, as a follow-up step, we can remove I2C_CLASS_SPD
altogether.

Signed-off-by: Heiner Kallweit 
Reviewed-by: Jean Delvare 
Link: https://lore.kernel.org/r/18241458-52db-4537-bead-d570801253c3@gmail.com
Signed-off-by: Greg Kroah-Hartman

eeprom: at24: also select REGMAP

2023-06-08T07:58:57+00:00

Selecting only REGMAP_I2C can leave REGMAP unset, causing build errors,
so also select REGMAP to prevent the build errors.

../drivers/misc/eeprom/at24.c:540:42: warning: 'struct regmap_config' declared inside parameter list will not be visible outside of this definition or declaration
  540 |                                   struct regmap_config *regmap_config)
../drivers/misc/eeprom/at24.c: In function 'at24_make_dummy_client':
../drivers/misc/eeprom/at24.c:552:18: error: implicit declaration of function 'devm_regmap_init_i2c' [-Werror=implicit-function-declaration]
  552 |         regmap = devm_regmap_init_i2c(dummy_client, regmap_config);
../drivers/misc/eeprom/at24.c:552:16: warning: assignment to 'struct regmap *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  552 |         regmap = devm_regmap_init_i2c(dummy_client, regmap_config);
../drivers/misc/eeprom/at24.c: In function 'at24_probe':
../drivers/misc/eeprom/at24.c:586:16: error: variable 'regmap_config' has initializer but incomplete type
  586 |         struct regmap_config regmap_config = { };
../drivers/misc/eeprom/at24.c:586:30: error: storage size of 'regmap_config' isn't known
  586 |         struct regmap_config regmap_config = { };
../drivers/misc/eeprom/at24.c:586:30: warning: unused variable 'regmap_config' [-Wunused-variable]

Fixes: 5c015258478e ("eeprom: at24: add basic regmap_i2c support")
Signed-off-by: Randy Dunlap 
Signed-off-by: Bartosz Golaszewski

nvmem: prepare basics for FRAM support

2021-06-11T10:23:10+00:00

Added enum and string for FRAM (ferroelectric RAM) to expose it as file
named "fram".
Added documentation of sysfs file.

Signed-off-by: Jiri Prchal 
Link: https://lore.kernel.org/r/20210611094601.95131-2-jiri.prchal@aksignal.cz
Signed-off-by: Greg Kroah-Hartman

eeprom: Deprecate the legacy eeprom driver

2019-09-04T07:57:35+00:00

Time has come to get rid of the old eeprom driver. The at24 driver
should be used instead. So mark the eeprom driver as deprecated and
give users some time to migrate. Then we can remove the legacy
eeprom driver completely.

Signed-off-by: Jean Delvare 
Cc: Arnd Bergmann 
Link: https://lore.kernel.org/r/20190902104838.058725c2@endymion
Signed-off-by: Greg Kroah-Hartman

eeprom: make older eeprom drivers select NVMEM_SYSFS

2019-07-25T12:39:51+00:00

misc/eeprom/{at24,at25,eeprom_93xx46} drivers all register their
corresponding devices in the nvmem framework in compat mode which requires
nvmem sysfs interface to be present. The latter, however, has been split
out from nvmem under a separate Kconfig in commit ae0c2d725512 ("nvmem:
core: add NVMEM_SYSFS Kconfig"). As a result, probing certain I2C-attached
EEPROMs now fails with

  at24: probe of 0-0050 failed with error -38

because of a stub implementation of nvmem_sysfs_setup_compat()
in drivers/nvmem/nvmem.h. Update the nvmem dependency for these drivers
so they could load again:

  at24 0-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write

Cc: Adrian Bunk 
Cc: Bartosz Golaszewski 
Cc: Srinivas Kandagatla 
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Arseny Solokha 
Link: https://lore.kernel.org/r/20190716111236.27803-1-asolokha@kb.kras.ru
Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

eeprom: at24: add support for 24c2048

2018-12-10T15:23:27+00:00

Works with ST M24M02.

Signed-off-by: Adrian Bunk 
Signed-off-by: Bartosz Golaszewski

eeprom: New ee1004 driver for DDR4 memory

2018-10-15T18:51:46+00:00

The EEPROMs which hold the SPD data on DDR4 memory modules are no
longer standard AT24C02-compatible EEPROMs. They are 512-byte EEPROMs
which use only 1 I2C address for data access. You need to switch
between the lower page and the upper page of data by sending commands
on the SMBus.

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