Re: [PATCH] ACPI: implement acpi_os_get_timer() according the spec

From: Mika Westerberg
Date: Mon May 13 2013 - 07:40:33 EST


On Mon, May 13, 2013 at 01:38:46PM +0200, Rafael J. Wysocki wrote:
> On Monday, May 13, 2013 01:27:51 PM Mika Westerberg wrote:
> > ACPI Timer() opcode should return monotonically increasing clock with 100ns
> > granularity. Implement this with the help of ktime_get().
> >
> > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
>
> That looks reasobable. Have you tested it?

Very lightly. Basically I added some debug printks() between two
successsive calls of Timer() and it seemed like it returned correct time.

It is certainly better than returning t+1 every time Timer() is called :)
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