Re: [PATCH] clocksource/drivers/npcm: fix GENMASK and timer operation

From: Avi Fishman
Date: Mon Jul 15 2019 - 11:02:08 EST


Hi Thomas,

Thanks,
Avi

On Mon, Jul 15, 2019 at 3:37 PM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
> Avi,
>
> On Mon, 15 Jul 2019, Avi Fishman wrote:
>
> > NPCM7XX_Tx_OPER GENMASK was wrong,
>
> That part is already fixed upstream:
>
> 9bdd7bb3a844 ("clocksource/drivers/npcm: Fix misuse of GENMASK macro")

The automatic fix changed from
GENMASK(3, 27) to
GENMASK(27, 3)
I reviewd again the code to check how it worked so far and saw that it
should have been
GENMASK(28, 27) - this is a different value than 9bdd7bb3a844
For our fortune this wrong value didn't effect the our final write to
the register.
But still this should be fixed.

>
> > npcm7xx_timer_oneshot() did wrong calculation
>
> That changelog is pretty unspecific. It does not tell what is wrong and
> which consequences that has. Please be a bit more specific.

OK I will fix

>
> Thanks,
>
> tglx



--
Regards,
Avi