lkml.org 
[lkml]   [2023]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Patch V5 2/3] tpm_tis-spi: Support hardware wait polling
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.
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2023-03-27 00:39    [W:0.053 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site