Messages in this thread | | | Subject | Re: [PATCH 1/3] i2c: designware: Enable async suspend / resume of designware devices | From | Jarkko Nikula <> | Date | Fri, 22 Oct 2021 14:37:36 +0300 |
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On 10/22/21 5:28 AM, Rajat Jain wrote: > Mark the designware devices for asynchronous suspend. With this, the > resume for designware devices does not get stuck behind other unrelated > devices (e.g. intel_backlight that takes hundreds of ms to resume, > waiting for its parent devices). > > Signed-off-by: Rajat Jain <rajatja@google.com> > --- > drivers/i2c/busses/i2c-designware-platdrv.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c > index 21113665ddea..2bd81abc86f6 100644 > --- a/drivers/i2c/busses/i2c-designware-platdrv.c > +++ b/drivers/i2c/busses/i2c-designware-platdrv.c > @@ -293,6 +293,8 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) > DPM_FLAG_MAY_SKIP_RESUME); > } > > + device_enable_async_suspend(&pdev->dev); > + > /* The code below assumes runtime PM to be disabled. */ > WARN_ON(pm_runtime_enabled(&pdev->dev)); > I guess same can be done to i2c_dw_pci_probe() too. I don't have any strong opinion should it be done in this patch or somewhere in the future.
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
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