linux-dev/drivers/misc/eeprom/Kconfig, branch master

nvmem: prepare basics for FRAM support

2021-06-11T10:23:10Z

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

2019-09-04T07:57:35Z

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

2019-07-25T12:39:51Z

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

2019-05-21T08:50:46Z

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

2018-12-10T15:23:27Z

Works with ST M24M02. Signed-off-by: Adrian Bunk Signed-off-by: Bartosz Golaszewski

eeprom: New ee1004 driver for DDR4 memory

2018-10-15T18:51:46Z

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

eeprom: at24: add basic regmap_i2c support

2018-01-01T18:40:46Z

This patch adds basic regmap support to be used by subsequent patches of this series. Signed-off-by: Heiner Kallweit Signed-off-by: Bartosz Golaszewski

eeprom: Add IDT 89HPESx EEPROM/CSR driver

2017-01-19T10:39:57Z

This driver provides an access to EEPROM of IDT PCIe-switches. IDT PCIe- switches expose a simple SMBus interface to perform IO-operations from/to EEPROM, which is located at private (so called Master) SMBus. The driver creates a simple binary sysfs-file to have an access to the EEPROM using the SMBus-slave interface in the i2c-device susfs-directory: /sys/bus/i2c/devices/-/eeprom In case if read-only flag is specified at dts-node of the device, User-space applications won't be able to write to the EEPROM sysfs-node. Additionally IDT 89HPESx SMBus interface has an ability to read/write values of device CSRs. This driver exposes debugfs-file to perform simple IO-operations using that ability for just basic debug purpose. Particularly the next file is created in the specific debugfs-directory: /sys/kernel/debug/idt_csr/ Format of the debugfs-file value is: $ cat /sys/kernel/debug/idt_csr/-/; : So reading the content of the file gives current CSR address and it value. If User-space application wishes to change current CSR address, it can just write a proper value to the sysfs-file: $ echo "" > /sys/kernel/debug/idt_csr/-/ If it wants to change the CSR value as well, the format of the write operation is: $ echo ":" > \ /sys/kernel/debug/idt_csr/-/; CSR address and value can be any of hexadecimal, decimal or octal format. Signed-off-by: Serge Semin Signed-off-by: Greg Kroah-Hartman

eeprom: at25: remove nvmem regmap dependency

2016-05-01T21:01:00Z

This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman

eeprom: at24: remove nvmem regmap dependency

2016-05-01T21:01:00Z

This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman