On Mon, 15 May 2017, Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> Hi,
>
> I'm seeing this on suspend/resume on a GPD-win,
> cherrytrail z8700 device:
Ville, does
commit 668e3b014afb66ab29e134bca7c258527273ac75
Author: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Date: Thu Apr 27 19:02:20 2017 +0300
drm/i915: Fix runtime PM for LPE audio
in drm-intel-fixes address this?
BR,
Jani.
>
> [ 75.514651] RPM wakelock ref not held during HW access
> [ 75.514827] ------------[ cut here ]------------
> [ 75.515025] WARNING: CPU: 2 PID: 1832 at drivers/gpu/drm/i915/intel_drv.h:1780 fwtable_write32+0x1d3/0x240 [i915]
> ...
> [ 75.515704] RIP: 0010:fwtable_write32+0x1d3/0x240 [i915]
> ...
> [ 75.515767] Call Trace:
> [ 75.515952] lpe_audio_irq_unmask+0x6a/0xc0 [i915]
> [ 75.515972] irq_enable+0x3a/0x50
> [ 75.515984] __enable_irq+0x34/0x60
> [ 75.515996] resume_irqs+0x8f/0xd0
> [ 75.516007] resume_device_irqs+0x10/0x20
> [ 75.516021] dpm_resume_noirq+0x23e/0x310
> [ 75.516041] suspend_devices_and_enter+0x2f3/0x7f0
> [ 75.516055] ? finish_wait+0x80/0x80
> [ 75.516067] pm_suspend+0x335/0x3a0
> [ 75.516078] state_store+0x85/0xf0
> [ 75.516095] kobj_attr_store+0xf/0x20
> [ 75.516108] sysfs_kf_write+0x37/0x40
> [ 75.516117] kernfs_fop_write+0x11c/0x1a0
> [ 75.516132] __vfs_write+0x37/0x160
> [ 75.516145] ? selinux_file_permission+0xfb/0x120
> [ 75.516158] ? security_file_permission+0x3b/0xc0
> [ 75.516169] vfs_write+0xb1/0x1a0
> [ 75.516180] SyS_write+0x55/0xc0
> [ 75.516197] entry_SYSCALL_64_fastpath+0x1a/0xa5
> ...
> [ 76.584235] PM: early resume of devices complete after 1067.477 msecs
>
> If someone has a fix for this they want me to try, let me know.
>
> Regards,
>
> Hans
> _______________________________________________
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
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--
Jani Nikula, Intel Open Source Technology Center
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