[PATCH 1/8] ARM: support for Moschip MCS814x SoCs
Florian Fainelli
florian at openwrt.org
Tue Jul 17 05:41:56 EDT 2012
Hi Mike,
On Monday 16 July 2012 13:47:01 Turquette, Mike wrote:
> On Mon, Jul 16, 2012 at 8:54 AM, Arnd Bergmann <arnd at arndb.de> wrote:
[snip]
> > board selection.
> >
> >> +struct clk {
> >> + struct clk *parent; /* parent clk */
> >> + unsigned long rate; /* clock rate in Hz */
> >> + unsigned long divider; /* clock divider */
> >> + u32 usecount; /* reference count */
> >> + struct clk_ops *ops; /* clock operation */
> >> + u32 enable_reg; /* clock enable register */
> >> + u32 enable_mask; /* clock enable mask */
> >> +};
> >
> > Platforms are now converting to the common clock framework in drivers/clk.
> > Mike Turquette as the subsystem maintainer can probably judge better
whether
> > we should still be allowing new platforms with their own implementation
> > of clk, but my feeling is that you should use the subsystem instead
> > and add a driver in a subdirectory of drivers/clk instead of in the
> > platform.
>
> Hi Florian & Arnd,
>
> Adopting the new clock framework is highly preferable, especially if
> MCS814x support is being delayed until 3.7. There is also a push to
> put clock drivers into drivers/clk and I would like to continue that
> trend, but I'm less strict on that measure if it proves very difficult
> for your platform immediately (e.g. duplicating headers across
> platform and generic code, etc). Migrating code from arch/arm to
> drivers/clk can always be done in a future series.
Since we are now targetting 3.7, I would rather come up with proper DT clock
bindings, which should make the mcs814x clock driver much nicer.
>
> This platform also seems to be making use of DT so it would be very
> nice if we use MCS814x to push the state of clk DT bindings and
> adoption forward a bit. There are not a lot of folks using the
> patches from Rob/Grant today. Hopefully delaying these patches by
> another merge cycle means that these requests are not asking too much
> :-)
If we could get them merged during 3.6 that would allow me, and other ARM-soc
maintainers to get their stuff fully migrated to DT. Are there any blockers to
these patches?
--
Florian
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