[alsa-devel] [PATCH V2 7/8] ARM: dts: wm8994: Add wm8994 support on smdk5420

Mark Brown broonie at kernel.org
Mon Jul 29 15:43:11 CEST 2013

On Mon, Jul 29, 2013 at 05:31:16PM +0530, Padma Venkat wrote:
> On Sat, Jul 27, 2013 at 6:46 AM, Padma Venkat <padma.kvr at gmail.com> wrote:

> >>> +     vdd: fixed-regulator at 0 {
> >>> +             compatible = "regulator-fixed";
> >>> +             regulator-name = "vdd-supply";

> >> These names look wrong - they should reflect the names in the schematic
> >> as they're for human comprehensibility.  This may just be a case of
> >> dropping the -supply.

> When I posted the same patch for smdk5250, you asked me to club all
> the same supply regulators. So I clubbed AVDD2 and CPVDD. So any other
> better name for representing both supplies?

No, I'd have told you to combine things taht come from the same supply
on the board - things like the speaker supplies for example aren't going
to be coming from separate places.  The names should reflect whatever
the names on the schemaric are, like I say that's probably just removing
the -supply.

> >> documentation update the other day, it's in my tree now) but it's not
> >> essential and I suspect it needs some work on the clock driver side
> >> still.

> > OK. I will check this.

> As per schemata, input clock to MCLK1 is an oscillator clock with
> 16.9MHz and MCLK2 not showing any input clock. So here I need to add a
> fixed rate clock with 16.9MHz as MCLK1 in the smdk board file.

> Is it correct?

Yes, in the DTS (or to XCLKOUT on the AP?).
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