[PATCH 00/10] drm/i915/spi: spi access for discrete graphics

Mark Brown broonie at kernel.org
Tue Sep 12 06:36:54 PDT 2023


On Tue, Sep 12, 2023 at 03:21:02PM +0200, Miquel Raynal wrote:
> alexander.usyskin at intel.com wrote on Tue, 12 Sep 2023 13:15:58 +0000:

> > > No SPI controllers are directly visible to userspace, some SPI devices
> > > are selectively exposed but that needs to be explicitly requested and is
> > > generally discouraged.  

> > What are the options here? Explicitly request exception is the one.
> > Any other way to add access to flash memory connected in such way?

> Register a spi controller with at least spi-mem ops, as suggested
> previously, is the standard way I guess. If you're not willing to do
> so, it must be justified, I guess?

Right, we already have a way of describing flash chips so that should be
used to describe any flash chips.
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