eeprom: at24: write-protect pin support
Get series with b4
b4 am [email protected]Versions newest first · linked by author and title
- v2 Latest2 patches 5 repliesIn review
- v12 patches 2 repliesSuperseded
Changes in v2 from the cover letter
- renamed the DT property to wp-gpios
Patches in v2 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | dt-bindings: at24: new optional property - wp-gpiosDocumentation/ | +3 | 1 reply | |
| 2/2 | eeprom: at24: add support for the write-protect pindrivers/ | +11 | 0 replies |
Reviews trailers per patch
1 of 2 patches has a Reviewed-by or Acked-by of their own; the series has one for all of them.
| Patch | Andy Shevchenko | Rob Herring |
|---|---|---|
| Series | R-b | |
| 1/2 | R-b | |
| 2/2 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH v2 0/2] eeprom: at24: write-protect pin support
AT24 EEPROMs have a write-protect pin, which - when pulled high - inhibits writes to the upper quadrant of memory (although it has been observed that on some chips it disables writing to the entire memory range).
On some boards, this pin is connected to a GPIO and pulled high by default, which forces the user to manually change its state before writing. On linux this means that we either need to hog the line all the time, or set the GPIO value before writing from outside of the at24 driver.
This series adds support for the write-protect pin split into two parts. The first patch extends the relevant binding document, while the second modifies the at24 code to pull the write-protect GPIO low (if present) during write operations.
v1 -> v2:
- renamed the DT property to wp-gpios
Bartosz Golaszewski (2):
dt-bindings: at24: new optional property - wp-gpios
eeprom: at24: add support for the write-protect pin
Documentation/devicetree/bindings/eeprom/at24.txt | 3 +++ drivers/misc/eeprom/at24.c | 11 +++++++++++ 2 files changed, 14 insertions(+)
Signature · 1 line
2.15.1