| Message ID | 0b3123e42c8a47e3fa8b21aa2e139e6d3dc69f41.1524646231.git.sean.wang@mediatek.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Wed, Apr 25, 2018 at 05:32:27PM +0800, sean.wang@mediatek.com wrote: > From: Sean Wang <sean.wang@mediatek.com> > > Adding device-tree binding for the power controller which is a tiny > circuit block present as a part of MT6323 PMIC and is responsible for > externally powering off or on a remote SoC the PMIC is connected to. > > Cc: devicetree@vger.kernel.org > Signed-off-by: Sean Wang <sean.wang@mediatek.com> > --- > .../bindings/power/reset/mt6323-poweroff.txt | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt > > diff --git a/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt > new file mode 100644 > index 0000000..6f7c590 > --- /dev/null > +++ b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt > @@ -0,0 +1,20 @@ > +Device Tree Bindings for Power Controller on MediaTek PMIC > + > +The power controller which could be found on PMIC is responsible for externally > +powering off or on the remote MediaTek SoC through the circuit BBPU. > + > +Required properties: > +- compatible: Should be one of follows > + "mediatek,mt6323-pwrc": for MT6323 PMIC > + > +Example: > + > + pmic { > + compatible = "mediatek,mt6323"; > + > + ... > + > + power-controller { > + compatible = "mediatek,mt6323-pwrc"; Why do you need this in DT? It doesn't define any resources. The parent can just as well register a reset or poweroff handler. Rob > + }; > + } > -- > 2.7.4 >
On Fri, 2018-04-27 at 15:02 -0500, Rob Herring wrote: > On Wed, Apr 25, 2018 at 05:32:27PM +0800, sean.wang@mediatek.com wrote: > > From: Sean Wang <sean.wang@mediatek.com> > > > > Adding device-tree binding for the power controller which is a tiny > > circuit block present as a part of MT6323 PMIC and is responsible for > > externally powering off or on a remote SoC the PMIC is connected to. > > > > Cc: devicetree@vger.kernel.org > > Signed-off-by: Sean Wang <sean.wang@mediatek.com> > > --- > > .../bindings/power/reset/mt6323-poweroff.txt | 20 ++++++++++++++++++++ > > 1 file changed, 20 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt > > > > diff --git a/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt > > new file mode 100644 > > index 0000000..6f7c590 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt > > @@ -0,0 +1,20 @@ > > +Device Tree Bindings for Power Controller on MediaTek PMIC > > + > > +The power controller which could be found on PMIC is responsible for externally > > +powering off or on the remote MediaTek SoC through the circuit BBPU. > > + > > +Required properties: > > +- compatible: Should be one of follows > > + "mediatek,mt6323-pwrc": for MT6323 PMIC > > + > > +Example: > > + > > + pmic { > > + compatible = "mediatek,mt6323"; > > + > > + ... > > + > > + power-controller { > > + compatible = "mediatek,mt6323-pwrc"; > > Why do you need this in DT? It doesn't define any resources. The parent > can just as well register a reset or poweroff handler. > > Rob > Yes, those binding can be removed. I tend to use platform_device_register_data embedded in mfd driver to probe the existent poweroff driver in the next version. > > + }; > > + } > > -- > > 2.7.4 > >
diff --git a/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt new file mode 100644 index 0000000..6f7c590 --- /dev/null +++ b/Documentation/devicetree/bindings/power/reset/mt6323-poweroff.txt @@ -0,0 +1,20 @@ +Device Tree Bindings for Power Controller on MediaTek PMIC + +The power controller which could be found on PMIC is responsible for externally +powering off or on the remote MediaTek SoC through the circuit BBPU. + +Required properties: +- compatible: Should be one of follows + "mediatek,mt6323-pwrc": for MT6323 PMIC + +Example: + + pmic { + compatible = "mediatek,mt6323"; + + ... + + power-controller { + compatible = "mediatek,mt6323-pwrc"; + }; + }