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From: Pintu Agarwal <pintu.ping@gmail.com>
To: Fabio Estevam <festevam@gmail.com>
Cc: linux-pm@vger.kernel.org,
	open list <linux-kernel@vger.kernel.org>,
	"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>,
	Kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: [IMX] [DRM]: suspend/resume support
Date: Fri, 21 Jun 2019 20:42:53 +0530
Message-ID: <CAOuPNLhstoCjxijrnKNmV1iKWjAXvSZ38Z13tfd5bvGbYSqPAA@mail.gmail.com> (raw)
In-Reply-To: <CAOuPNLjrAU_C_TUKFMs1d0eGsw=AxuG6d6FhNHtHFwVhfYZGgA@mail.gmail.com>

On Wed, Jun 19, 2019 at 8:59 PM Pintu Agarwal <pintu.ping@gmail.com> wrote:

> > > This scenario is not with suspend/resume.
> > > This hang is, when we make hdmi as a loadable module (.ko) and trying
> > > to install it after resume.
> > > In this case, suspend/resume will not come into picture. Not sure why
> > > it still hangs.
> > > Do you have any clue for this scenario?
> >
> > I haven't tried this one.
> >

Okay there is some update on the 2nd part.
Now I am able to successfully install all imx modules after the resume
(no hang).
But, I got some errors after install finish:
[drm] disabling vblank on crtc 1
[IMX]: imx_drm_disable_vblank - called
[drm:drm_atomic_helper_commit_cleanup_done] *ERROR* [CRTC:24:crtc-0]
flip_done timed out

Also I am able to start the weston successfully.
But I see LCD/HDMI display is not working (only some backlight is visible).

And, I noticed, weston also reports the following errors:
imx-ipuv3 2400000.ipu: DC stop timeout after 50 ms
[IMX]: drm_crtc_vblank_off - called
[IMX]: imx_drm_disable_vblank - called
INFO: rcu_preempt detected stalls on CPUs/tasks: { 1} (detected by 0,
t=6002 jiffies, g=289, c=288, q=8)
Task dump for CPU 1:
weston          R running      0   306      1 0x00000000
[<c05282d8>] (__schedule) from [<00080193>] (0x80193)

Do you have any clue about these errors ?

Thanks,
Pintu

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Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-17 13:49 Pintu Agarwal
2019-06-18  7:01 ` Oliver Neukum
2019-06-18 14:02 ` Fabio Estevam
2019-06-18 14:45   ` Pintu Agarwal
2019-06-18 15:09     ` Fabio Estevam
2019-06-19 13:33       ` Pintu Agarwal
2019-06-19 13:44         ` Fabio Estevam
2019-06-19 15:04           ` Pintu Agarwal
2019-06-19 15:11             ` Fabio Estevam
2019-06-19 15:29               ` Pintu Agarwal
2019-06-21 15:12                 ` Pintu Agarwal [this message]
2019-06-21 15:40                   ` Fabio Estevam
2019-06-22  8:13                     ` Pintu Agarwal
2019-07-01 14:25                       ` Pintu Agarwal
2019-07-11 15:29                         ` [IMX] [DRM]: help in analyzing clock_summary rate difference Pintu Agarwal
2019-06-19 15:04         ` [IMX] [DRM]: suspend/resume support Greg KH
2019-06-19 15:17           ` Pintu Agarwal
2019-06-19 16:26             ` Valdis Klētnieks
2019-06-21 15:04               ` Pintu Agarwal

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