Re: [PATCH 2/2] drivers: qcom: rpmh-rsc: fix read back of trigger register

[Lina Iyer]

On Fri, Jul 19 2019 at 12:22 -0600, Stephen Boyd wrote:
> Quoting Lina Iyer (2019-07-01 08:29:07)
> > When triggering a TCS to send its contents, reading back the trigger
> > value may return an incorrect value. That is because, writing the
> > trigger may raise an interrupt which could be handled immediately and
> > the trigger value could be reset in the interrupt handler. By doing a
> > read back we may end up spinning waiting for the value we wrote.
>
> Doesn't this need to be squashed into the patch that gets rid of the
> irqs disabled state of this code? It sounds an awful lot like this
> problem only happens now because the previous patch removed the
> irqsave/irqrestore code around this function.

True. Could be rolled into that fix.

--Lina