On Wed, Mar 01, 2023 at 09:39:28AM -0400, Jason Gunthorpe wrote: > On Wed, Mar 01, 2023 at 12:37:27PM +0000, Mark Brown wrote: > > It's not like these buses are hot pluggable - someone would have to > > design and manufacture a board which doesn't work. It's probably > > reasonable for this to fail with the SPI subsystem saying it can't > > support things when the operation is tried. > If the spi subsystem fails this request with these flags that would be > great, it would cause the TPM to fail probing reliably. > But does this patch do that? It looks like non-supporting half duplex > drivers will just ignore the new flag? That's something we can fix up in SPI, we shouldn't worry about it for the client drivers.
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