Re: [PATCH v4 6/8] i2c: designware: Use PCI PSP driver for communication

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On 3/10/23 23:19, Mario Limonciello wrote:
Currently the PSP semaphore communication base address is discovered
by using an MSR that is not architecturally guaranteed for future
platforms.  Also the mailbox that is utilized for communication with
the PSP may have other consumers in the kernel, so it's better to
make all communication go through a single driver.

Acked-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
v3->v4:
  * Pick up tags
v1->v2:
  * Fix Kconfig to use imply
  * Use IS_REACHABLE
---
  drivers/i2c/busses/Kconfig                  |   2 +-
  drivers/i2c/busses/i2c-designware-amdpsp.c  | 142 ++------------------
  drivers/i2c/busses/i2c-designware-core.h    |   1 -
  drivers/i2c/busses/i2c-designware-platdrv.c |   1 -
  include/linux/psp-platform-access.h         |   1 +
  5 files changed, 11 insertions(+), 136 deletions(-)

For the i2c-designware parts:

Acked-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>



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