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  1. Bug #1283589
  2. Comment #218

Comment 218 for bug 1283589

Revision history for this message
In , lv.zheng (lv.zheng-linux-kernel-bugs) wrote :

(In reply to Ortwin Glück from comment #193)
> For now I have emailed the author and ACPI list:
>
> http://thread.gmane.org/gmane.linux.kernel/1813529

Thanks for the report.
I'll post permanent fixes here for Samsung laptops.
IRQs need to be both "polled" and "handled using interrupts" for a driver that tries to support hardware/firmware variants.

For me, it looks like that we need to implement "EC GPE polling" in the driver.
Currently we have "EC GPE polling" implemented for OBF/IBF interrupts.
But for SCI_EVT, we don't have such a polling mode.

I can see that a poller in the userspace can fix this.
So what I need to do is to implement the threaded IRQ (IRQ is polled in the thread and is also reported through interrupts) for EC GPEs in the kernel.

The patches are already ready as I mentioned in the mailing list.
I'll post them for you.
But please wait for a while because I need to do a rebase and basic unit test locally before posting.