Searched hist:"818 d0220" (Results 1 – 1 of 1) sorted by relevance
/openbmc/linux/drivers/misc/eeprom/ |
H A D | at24.c | 818d0220 Mon Jun 06 03:48:51 CDT 2016 Bartosz Golaszewski <bgolaszewski@baylibre.com> eeprom: at24: support reading the serial number for 24csxx
The chips from the at24cs family have two memory areas - a regular read-write block and a read-only area containing the serial number.
The latter is visible on a different slave address (the address of the rw memory block + 0x08). In order to access both blocks the user needs to instantiate a regular at24c device for the rw block address and a corresponding at24cs device on the serial number block address.
Add a function that allows to access the serial number and assign it to at24->read_func if the chip allows serial number read operations and the driver was passed the relevant flag for this device.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> 818d0220 Mon Jun 06 03:48:51 CDT 2016 Bartosz Golaszewski <bgolaszewski@baylibre.com> eeprom: at24: support reading the serial number for 24csxx The chips from the at24cs family have two memory areas - a regular read-write block and a read-only area containing the serial number. The latter is visible on a different slave address (the address of the rw memory block + 0x08). In order to access both blocks the user needs to instantiate a regular at24c device for the rw block address and a corresponding at24cs device on the serial number block address. Add a function that allows to access the serial number and assign it to at24->read_func if the chip allows serial number read operations and the driver was passed the relevant flag for this device. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
|