This series of patches adds an initial set of devicetree bindings to the
eeprom_93xx46 driver which mirror the configuration options previously
available as a platform device. These bindings are then extended to
include support for specific Atmel devices in this family and also to
support GPIO-based selection of the device (e.g. for use with an SPI bus
mux).
Additionally, an address aliasing issue with 16-bit read and write
accesses in the eeprom_93xx46 driver discovered during testing is fixed.
Changes since v3:
- Tested-by: Chris Healy <chris.healy@xxxxxxxx>
...on a separate i.MX51 platform with Microchip 93LC46A EEPROM.
Changes since v2:
- Changed node name to 'eeprom' in DT bindings example.
- Simplified several bits of return logic.
- Removed #ifdef CONFIG_OF.
- Allow compiler to handle promotion to bool return values.
- Reworked GPIO handling to use gpiod_* functions throughout (and
fixed an oversight where GPIO flags were being ignored).
Changes since v1:
- Consolidated all Documentation/devictree additions into a single patch.
- Clarified compatible string shall be only one of the supported values.
- Renamed the 'select-gpio' binding to 'select-gpios'.
Cory Tusar (5):
misc: eeprom_93xx46: Fix 16-bit read and write accesses.
Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver.
misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings.
misc: eeprom_93xx46: Add quirks to support Atmel AT93C46D device.
misc: eeprom_93xx46: Add support for a GPIO 'select' line.
.../devicetree/bindings/misc/eeprom-93xx46.txt | 25 +++
drivers/misc/eeprom/eeprom_93xx46.c | 212 +++++++++++++++++----
include/linux/eeprom_93xx46.h | 9 +
3 files changed, 210 insertions(+), 36 deletions(-)
create mode 100644 Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
--
2.4.10
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