Re: [PATCH v2] i2c: designware: Introduce semaphore reservation timer to AMDPSP driver

Jan Dąbroś
2022-08-22T10:31:44Z

pon., 15 sie 2022 o 13:17 Jarkko Nikula
<jarkko.nikula@linux.intel.com> napisał(a):
>
> On 8/12/22 10:15, Jan Dabros wrote:
> > In order to optimize performance, limit amount of back and forth
> > transactions between x86 and PSP. This is done by introduction of
> > semaphore reservation period - that is window in which x86 isn't
> > releasing the bus immediately after each I2C transaction.
> >
> > In order to protect PSP from being starved while waiting for
> > arbitration, after a programmed time bus is automatically released by a
> > deferred function.
> >
> > Signed-off-by: Jan Dabros <jsd@semihalf.com>
> > ---
> > drivers/i2c/busses/i2c-designware-amdpsp.c | 68 +++++++++++++++++-----
> > 1 file changed, 53 insertions(+), 15 deletions(-)
> >
> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>

Thanks!

Best Regards,
Jan