On Fri, Feb 24, 2023 at 02:16:27PM +0000, Krishna Yarlagadda wrote:
> > > > > + spi_bus_lock(phy->spi_device->master);
> > > > > +
> > > > > + while (len) {
> > > > Why?
> > > TPM supports max 64B in single transaction. Loop to send rest of it.
> > No, why is there a bus lock?
> Bus lock to avoid other clients to be accessed between TPM transfers.
That's what a bus lock does but what would be the problem if something
else sent a message between messages? Note that a message will always
be sent atomically.
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