On Fri, 2016-04-15 at 10:02 +0800, James Liao wrote:
> Hi Yingjoe,
>
> On Thu, 2016-04-14 at 18:56 +0800, Yingjoe Chen wrote:
> > On Thu, 2016-04-14 at 16:16 +0800, James Liao wrote:
> > > From: Shunli Wang <shunli.wang@xxxxxxxxxxxx>
> > >
> > > Add power dt-bindings for MT2701.
> > >
> > > Signed-off-by: Shunli Wang <shunli.wang@xxxxxxxxxxxx>
> > > Signed-off-by: James Liao <jamesjj.liao@xxxxxxxxxxxx>
> > > Acked-by: Rob Herring <robh@xxxxxxxxxx>
> > > Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxxxx>
> > > ---
> > > .../devicetree/bindings/soc/mediatek/scpsys.txt | 12 ++++++----
> > > include/dt-bindings/power/mt2701-power.h | 27 ++++++++++++++++++++++
> > > 2 files changed, 34 insertions(+), 5 deletions(-)
> > > create mode 100644 include/dt-bindings/power/mt2701-power.h
> > >
> > > diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
> > > index e8f15e3..ebb3144 100644
> > > --- a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
> > > +++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
> > > @@ -9,17 +9,19 @@ domain control.
> > >
> > > The driver implements the Generic PM domain bindings described in
> > > power/power_domain.txt. It provides the power domains defined in
> > > -include/dt-bindings/power/mt8173-power.h.
> > > +include/dt-bindings/power/mt8173-power.h and mt2701-power.h.
> > >
> > > Required properties:
> > > -- compatible: Must be "mediatek,mt8173-scpsys"
> > > +- compatible: Should be one of:
> > > + - "mediatek,mt2701-scpsys"
> > > + - "mediatek,mt8173-scpsys"
> > > - #power-domain-cells: Must be 1
> > > - reg: Address range of the SCPSYS unit
> > > - infracfg: must contain a phandle to the infracfg controller
> > > - clock, clock-names: clocks according to the common clock binding.
> > > - The clocks needed "mm", "mfg", "venc" and "venc_lt".
> > > - These are the clocks which hardware needs to be enabled
> > > - before enabling certain power domains.
> > > + The clocks needed "mm", "mfg", "venc", "venc_lt" and
> > > + "ethif". These are the clocks which hardware needs to be
> > > + enabled before enabling certain power domains.
> >
> >
> > Clock ethif only exist on mt2701 so it is not required on mt8173.
>
> You are right. Each SoC needs different clock for each power domain.
> Here list all subsystems of available SoCs.
Binding should list required clocks for each specific platform. How
about this:
- clock, clock-names: clocks according to the common clock binding.
These are the clocks which hardware needs to be
enabled before enabling certain power domains.
Required clocks for mt2701: "mm", "mfg", "ethif"
Required clocks for mt8173: "mm", "mfg", "venc", "venc_lt"
Joe.C
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
