Re: [PATCH v3 0/3] i2c: designware: improve performance for transfers

From: De Marchi, Lucas
Date: Mon Aug 15 2016 - 08:34:21 EST


On Fri, 2016-08-12 at 16:59 +0200, Christian Ruppert wrote:
> On 29.07.2016 00:03, Lucas De Marchi wrote:
> >
> > This can be considered a v3 of "i2c: designware: do not disable
> > adapter after
> > transfer". Differences are:
> >
> > ÂÂÂÂ- Now there's a first patch that does not depend on IC_TAR
> > being dynamically
> > ÂÂÂÂÂÂenabled/disabled: it just doesn't wait for the state change
> > when not needed.
> >
> > ÂÂÂÂ- We added a patch that allows detecting if HW supports the
> > dynamic TAR updates
> >
> > ÂÂÂÂ- In the last patch the bits were changed as suggested by
> > Jarkko.
> >
> > ÂÂÂÂ- This is tested on BayTrail and CherryTrail, both of them
> > returning true for
> > ÂÂÂÂÂÂ"dynamically update TAR"
>
> Tested-by: Christian Ruppert <christian.ruppert@xxxxxxxxxxx>
> on TB101 with Linux-4.7
>
> Seems to work perfectly now, congratulations and thanks for your
> patience with our platform... This was a hard one!

Awesome, thanks for testing this series.

Looks like I forgot to CC Wolfram. CC'ing now on this cover letter, let
me know if you also need the individual patches.


Lucas De Marchi

>
> >
> > Josà Roberto de Souza (1):
> > Â i2c: designware: wait for disable/enable only if necessary
> >
> > Lucas De Marchi (2):
> > Â i2c: designware: detect when dynamic tar update is possible
> > Â i2c: designware: do not disable adapter after transfer
> >
> > Âdrivers/i2c/busses/i2c-designware-core.c | 103
> > +++++++++++++++++++++----------
> > Âdrivers/i2c/busses/i2c-designware-core.h |ÂÂÂ1 +
> > Â2 files changed, 72 insertions(+), 32 deletions(-)
> >
>