Re: [PATCH v4 1/3] power-domain: add power domain drivers for Rockchip platform

From: Russell King - ARM Linux
Date: Mon Oct 20 2014 - 17:41:19 EST


On Mon, Oct 20, 2014 at 02:31:17PM -0700, Kevin Hilman wrote:
> "jinkun.hong" <jinkun.hong@xxxxxxxxxxxxxx> writes:
> > + spin_lock_irqsave(&pd->idle_lock, flags);
> > + val = (idle) ? mask : 0;
> > + regmap_update_bits(pd->regmap_pmu, REQ_OFFSET, mask, val);
> > + dsb();
>
> A summary of the locking and barriers here (or in changelog) would be
> helpful for reviewers to verify you're protecting what you need to
> protect.

It's also worth saying that the Linux specific barrier names should be
used unless there is a pressing reason to use the ARM specific barrier
names.

--
FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/