Messages in this thread |  | | From | Linus Walleij <> | Date | Tue, 7 Jan 2020 10:50:48 +0100 | Subject | Re: [PATCH v4 1/5] dt-bindings: nvmem: new optional property wp-gpios |
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On Tue, Jan 7, 2020 at 10:29 AM Khouloud Touil <ktouil@baylibre.com> wrote:
> Several memories have a write-protect pin, that when pulled high, it > blocks the write operation. > > 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. > > Instead of modifying all the memory 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. > > Add a new optional property to the device tree binding document, which > allows to specify the GPIO line to which the write-protect pin is > connected. > > Signed-off-by: Khouloud Touil <ktouil@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Yours, Linus Walleij
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