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authorArseny Solokha <asolokha@kb.kras.ru>2019-07-16 18:12:36 +0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-25 14:39:51 +0200
commit1b5621832f9bd9899370ea6928462cd02ebe7dc0 (patch)
tree84728d2985e094a2554088ab20c9aaee09f4d4ec /drivers
parent10b0f1c227ed8236555318cb26933881b7e907f9 (diff)
downloadlinux-1b5621832f9bd9899370ea6928462cd02ebe7dc0.tar.bz2
eeprom: make older eeprom drivers select NVMEM_SYSFS
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 <bunk@kernel.org> Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: stable@vger.kernel.org # v5.2+ Signed-off-by: Arseny Solokha <asolokha@kb.kras.ru> Link: https://lore.kernel.org/r/20190716111236.27803-1-asolokha@kb.kras.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/eeprom/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index f88094719552..f2abe27010ef 100644
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -5,6 +5,7 @@ config EEPROM_AT24
tristate "I2C EEPROMs / RAMs / ROMs from most vendors"
depends on I2C && SYSFS
select NVMEM
+ select NVMEM_SYSFS
select REGMAP_I2C
help
Enable this driver to get read/write support to most I2C EEPROMs
@@ -34,6 +35,7 @@ config EEPROM_AT25
tristate "SPI EEPROMs from most vendors"
depends on SPI && SYSFS
select NVMEM
+ select NVMEM_SYSFS
help
Enable this driver to get read/write support to most SPI EEPROMs,
after you configure the board init code to know about each eeprom
@@ -80,6 +82,7 @@ config EEPROM_93XX46
depends on SPI && SYSFS
select REGMAP
select NVMEM
+ select NVMEM_SYSFS
help
Driver for the microwire EEPROM chipsets 93xx46x. The driver
supports both read and write commands and also the command to