On Mon, Sep 04, 2017 at 12:01:54PM +0200, Rafael J. Wysocki wrote:
> static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
> - .prepare = dw_i2c_plat_prepare,
> - .complete = dw_i2c_plat_complete,
> - SET_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
> - SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend,
> - dw_i2c_plat_resume,
> - NULL)
> + SET_LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
This seems to cause problem with intel-lpss MFD driver because it uses
.suspend() and .resume() instead of .suspend_late() and .resume_early().
It only brings the device out of reset during .resume() which triggers
this:
[ 221.066302] PM: noirq resume of devices complete after 162.461 msecs
[ 221.079743] i2c_designware i2c_designware.0: Unknown Synopsys component type: 0x00000000
[ 221.079749] i2c_designware i2c_designware.1: Unknown Synopsys component type: 0x00000000
[ 221.079880] PM: early resume of devices complete after 13.538 msecs
...
[ 222.115656] i2c_designware i2c_designware.1: controller timed out
[ 222.756572] [drm] RC6 on
[ 226.276006] i2c_hid i2c-DLL06E4:01: failed to reset device.
[ 227.300012] i2c_designware i2c_designware.1: controller timed out
[ 227.300037] i2c_hid i2c-DLL06E4:01: failed to change power setting.
[ 227.300048] dpm_run_callback(): i2c_hid_resume+0x0/0xf0 [i2c_hid] returns -61
[ 227.300057] PM: Device i2c-DLL06E4:01 failed to resume async: error -61
and the touchpad does not work from this point forward.
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