czw., 19 gru 2019 o 11:51 Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> napisał(a): > > > > On 10/12/2019 15:41, Khouloud Touil wrote: > > The write-protect pin handling looks like a standard property that > > could benefit other users if available in the core nvmem framework. > > > > Instead of modifying all the drivers to check this pin, make the > > nvmem subsystem check if the write-protect GPIO being passed > > through the nvmem_config or defined in the device tree and pull it > > low whenever writing to the memory. > > > > This patchset: > > > > - adds support for the write-protect pin split into two parts. > > The first patch modifies modifies the relevant binding document, > > while the second modifies the nvmem code to pull the write-protect > > GPIO low (if present) during write operations. > > > > - removes support for the write-protect pin split into two parts. > > The first patch modifies the relevant binding document to remove > > the wp-gpio, while the second removes the relevant code in the > > at24 driver. > > > > Changes since v1: > > -Add an explenation on how the wp-gpios works > > -keep reference to the wp-gpios in the at24 binding > > > > Khouloud Touil (4): > > dt-bindings: nvmem: new optional property write-protect-gpios > > nvmem: add support for the write-protect pin > > dt-bindings: at24: remove the optional property write-protect-gpios > > eeprom: at24: remove the write-protect pin support > > > > Thanks Khouloud for this patchset, > > I can take this via nvmem tree once we get an ack on dt bindings from DT > maintainers. > Hi Srinivas, this will conflict with my at24 tree for this release - can you put those patches (once they're fine) into an immutable branch for me to merge in? Bart > > --srini > > .../devicetree/bindings/eeprom/at24.yaml | 6 +----- > > .../devicetree/bindings/nvmem/nvmem.yaml | 9 +++++++++ > > drivers/misc/eeprom/at24.c | 9 --------- > > drivers/nvmem/core.c | 19 +++++++++++++++++-- > > drivers/nvmem/nvmem.h | 2 ++ > > include/linux/nvmem-provider.h | 3 +++ > > 6 files changed, 32 insertions(+), 16 deletions(-) > >
