[PATCH v2 1/4] spi: dt-bindings: Introduce spi-mosi-idle-low flag

Mark Brown broonie at kernel.org
Wed May 17 07:35:38 PDT 2023


On Wed, May 17, 2023 at 10:26:07AM +0200, Börge Strümpfel wrote:

> However I am not so sure about setting it unconditionally, since this
> is dependent on the spi-controller. Not all spi-controller show this
> behavior, that they use a high mosi line in idle mode and have the
> ability to change this. As far as I know, another common behavior
> is that the mosi just keeps the last state which it transmitted. In this
> case, devices like Neopixel would still work without this mode bit.

The behaviour the device needs is that the device have a low MOSI, how
that is achieved is immaterial.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20230517/c1724c96/attachment.sig>


More information about the linux-arm-kernel mailing list