Re: [PATCH v2 2/3] spi: meson-axg: enhance output enable feature

From: Mark Brown
Date: Thu Dec 13 2018 - 06:54:07 EST


On Thu, Dec 13, 2018 at 10:04:56AM +0100, Jerome Brunet wrote:
> On Thu, 2018-12-13 at 16:39 +0800, Sunny Luo wrote:

> >
> > writel_bits_relaxed(BIT(24), BIT(24), spicc->base + SPICC_TESTREG);
> >
> > + meson_spicc_oen_enable(spicc);
> > +

> Any specific reason for doing this in prepare_message() ? It looks like
> something that could/should be done during the probe ?

If it's for power management then there should be a matching disable in
unprepare_message() (or this should just be in the runtime PM code,
though it's possible there's stuff that's only needed while actually
doing transfers in which case this could make sense).

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