In our former i2c driver, i2c clk is enabled and disabled in
xfer function, which contributes to power saving. However,
the clk enable process brings a busy wait delay until the core
is stable. As a result, the performance is sacrificed.
To weigh the power consumption and i2c bus performance, runt
Am 25.08.2015 um 04:20 schrieb Gao Pan:
> In our former i2c driver, i2c clk is enabled and disabled in
> xfer function, which contributes to power saving. However,
> the clk enable process brings a busy wait delay until the core
> is stable. As a result, the performance is sacrificed.
>
> To weigh
V4] i2c: imx: add runtime pm support to improve the
> performance
>
> Am 25.08.2015 um 04:20 schrieb Gao Pan:
> > In our former i2c driver, i2c clk is enabled and disabled in xfer
> > function, which contributes to power saving. However, the clk enable
> > process brin
engutronix.de; ker...@pengutronix.de
> Subject: RE: [Patch V4] i2c: imx: add runtime pm support to improve the
> performance
>
> From: Heiner Kallweit <mailto:hkallwe...@gmail.com> Sent: Tuesday, August
> 25, 2015 2:37 PM
> > To: Gao Pan-B54642; w...@the-dreams.de
>
ine-koe...@pengutronix.de; ker...@pengutronix.de
>> Subject: Re: [Patch V4] i2c: imx: add runtime pm support to improve the
>> performance
>>
>> Am 25.08.2015 um 04:20 schrieb Gao Pan:
>>> In our former i2c driver, i2c clk is enabled and disabled in xfer
>>> function
; >> Cc: linux-i2c@vger.kernel.org; Li Frank-B20596; Duan Fugang-B38611;
> >> u.kleine-koe...@pengutronix.de; ker...@pengutronix.de
> >> Subject: Re: [Patch V4] i2c: imx: add runtime pm support to improve
> >> the performance
> >>
> >> Am
