[PATCH] Revert "i2c: core: support bus regulator controlling in adapter"

[Tareque Md.Hanif]

 The issue still exists. It takes very long time to suspend (10-12s). `DRI_PRIME=1 glxgears` is a black window.

journalctl attached
Looking forward to any testing.

Thanks.





    On Saturday, February 5, 2022, 12:18:38 AM GMT+6, Hsin-Yi Wang <hsinyi at chromium.org> wrote:  
 
 On Sun, Jan 16, 2022 at 2:44 AM Tareque Md.Hanif
<tarequemd.hanif at yahoo.com> wrote:
>
> Hi Hsin-Yi,
>
> The issue still exists. I reverted a19f75de73c220b4496d2aefb7a605dd032f7c01 (the commit that reverted 5a7b95fb993ec399c8a685552aa6a8fc995c40bd) and manually applied the patch (tags/v5.16). journalctl attached.

hi Tareque,

Can you apply the same setting[1] again and with this patch to see if
the issue is still there?
https://github.com/torvalds/linux/commit/6dc8265f9803ccb7e5da804e01601f0c14f270e0

[1] reverted a19f75de73c220b4496d2aefb7a605dd032f7c01 (the commit that
reverted 5a7b95fb993ec399c8a685552aa6a8fc995c40bd) and manually
applied the patch (tags/v5.16)

Thanks
>
> Regards,
>
> Tareque
>
> On Saturday, January 15, 2022, 11:27:07 PM GMT+6, Hsin-Yi Wang <hsinyi at chromium.org> wrote:
>
>
> hi Tareque,
>
>
> On Fri, Jan 14, 2022 at 6:09 PM Tareque Md Hanif
> <tarequemd.hanif at yahoo.com> wrote:
> >
> > Hi Hsin-Yi,
> >
> > On 1/12/22 16:58, Hsin-Yi Wang wrote:
> >
> > Can you help provide logs if we apply
> > 5a7b95fb993ec399c8a685552aa6a8fc995c40bd but revert
> > 8d35a2596164c1c9d34d4656fd42b445cd1e247f?
> >
> > Issue still exists. journalctl log attached in revert_8d.txt
> >
> >
> > > after apply 5a7b95fb993ec399c8a685552aa6a8fc995c40bd
> > > 1. delete SET_LATE_SYSTEM_SLEEP_PM_OPS(i2c_suspend_late,
> > > i2c_resume_early) and function i2c_suspend_late() and
> > > i2c_resume_early().
> >
> > No issues. journalctl log attached in test1.txt
> >
> >
> > > 2. delete SET_RUNTIME_PM_OPS(i2c_runtime_suspend, i2c_runtime_resume,
> > > NULL) and function i2c_runtime_suspend() and i2c_runtime_resume().
> >
> > Issue exists. journalctl log attached in test2.txt
>
>
> Thanks for the testing.
> Can you help us test if applying the following patch on top of
> 5a7b95fb993ec399c8a685552aa6a8fc995c40bd works? Thanks
>
> diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
> index 9eb4009cb250..6b046012aa08 100644
> --- a/drivers/i2c/i2c-core-base.c
> +++ b/drivers/i2c/i2c-core-base.c
> @@ -484,7 +484,7 @@ static int i2c_resume_early(struct device *dev)
>        struct i2c_client *client = i2c_verify_client(dev);
>        int err;
>
> -      if (!client)
> +      if (!client || dev_pm_skip_resume(dev))
>                return 0;
>
>        if (pm_runtime_status_suspended(&client->dev) &&
> @@ -502,7 +502,7 @@ static int i2c_suspend_late(struct device *dev)
>        struct i2c_client *client = i2c_verify_client(dev);
>        int err;
>
> -      if (!client)
> +      if (!client || dev_pm_skip_suspend(dev))
>                return 0;
>
>        err = pm_generic_suspend_late(&client->dev);
>
  
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