| Message ID | 20190906103558.17694-1-t-kristo@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [PATCHv4,01/10] dt-bindings: omap: add new binding for PRM instances | expand |
On Fri, Sep 6, 2019 at 11:36 AM Tero Kristo <t-kristo@ti.com> wrote: > > Add new binding for OMAP PRM (Power and Reset Manager) instances. Each > of these will act as a power domain controller and potentially as a reset > provider. > > Signed-off-by: Tero Kristo <t-kristo@ti.com> > --- > v4: > - renamed nodes as power-controller > - added documentation about hierarchy > > .../devicetree/bindings/arm/omap/prm-inst.txt | 31 +++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/omap/prm-inst.txt Reviewed-by: Rob Herring <robh@kernel.org>
* Rob Herring <robh+dt@kernel.org> [190906 12:57]: > On Fri, Sep 6, 2019 at 11:36 AM Tero Kristo <t-kristo@ti.com> wrote: > > > > Add new binding for OMAP PRM (Power and Reset Manager) instances. Each > > of these will act as a power domain controller and potentially as a reset > > provider. > > > > Signed-off-by: Tero Kristo <t-kristo@ti.com> > > --- > > v4: > > - renamed nodes as power-controller > > - added documentation about hierarchy > > > > .../devicetree/bindings/arm/omap/prm-inst.txt | 31 +++++++++++++++++++ > > 1 file changed, 31 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/arm/omap/prm-inst.txt > > Reviewed-by: Rob Herring <robh@kernel.org> Looks good to me too: Reviewed-by: Tony Lindgren <tony@atomide.com>
On 06/09/2019 18:36, Tony Lindgren wrote: > * Rob Herring <robh+dt@kernel.org> [190906 12:57]: >> On Fri, Sep 6, 2019 at 11:36 AM Tero Kristo <t-kristo@ti.com> wrote: >>> >>> Add new binding for OMAP PRM (Power and Reset Manager) instances. Each >>> of these will act as a power domain controller and potentially as a reset >>> provider. >>> >>> Signed-off-by: Tero Kristo <t-kristo@ti.com> >>> --- >>> v4: >>> - renamed nodes as power-controller >>> - added documentation about hierarchy >>> >>> .../devicetree/bindings/arm/omap/prm-inst.txt | 31 +++++++++++++++++++ >>> 1 file changed, 31 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/arm/omap/prm-inst.txt >> >> Reviewed-by: Rob Herring <robh@kernel.org> > > Looks good to me too: > > Reviewed-by: Tony Lindgren <tony@atomide.com> > I may need to re-spin slightly new version of this. Stephen has some comments on the clock driver side I am depending on, he does not like the hard link between reset + clocks, so I may need to ditch the "clocks" property from this one also. I'll see next week which direction I need to go. -Tero -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
diff --git a/Documentation/devicetree/bindings/arm/omap/prm-inst.txt b/Documentation/devicetree/bindings/arm/omap/prm-inst.txt new file mode 100644 index 000000000000..7c7527c37734 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/omap/prm-inst.txt @@ -0,0 +1,35 @@ +OMAP PRM instance bindings + +Power and Reset Manager is an IP block on OMAP family of devices which +handle the power domains and their current state, and provide reset +handling for the domains and/or separate IP blocks under the power domain +hierarchy. A PRM instance node must be a child of a PRM node [1]. + +[1] Documentation/devicetree/bindings/arm/omap/prcm.txt + +Required properties: +- compatible: Must be one of: + "ti,am3-prm-inst" + "ti,am4-prm-inst" + "ti,omap4-prm-inst" + "ti,omap5-prm-inst" + "ti,dra7-prm-inst" +- reg: Contains PRM instance register address range + (base address and length) + +Optional properties: +- #reset-cells: Should be 1 if the PRM instance in question supports resets. +- clocks: Associated clocks for the reset signals if any. Certain reset + signals can't be toggled properly without functional clock + being active for them. + +Example: + +&prm { + prm_dsp2: power-controller@1b00 { + compatible = "ti,dra7-prm-inst"; + reg = <0x1b00 0x40>; + #reset-cells = <1>; + clocks = <&dsp2_clkctrl DRA7_DSP2_MMU0_DSP2_CLKCTRL 0>; + }; +};
Add new binding for OMAP PRM (Power and Reset Manager) instances. Each of these will act as a power domain controller and potentially as a reset provider. Signed-off-by: Tero Kristo <t-kristo@ti.com> --- v4: - renamed nodes as power-controller - added documentation about hierarchy .../devicetree/bindings/arm/omap/prm-inst.txt | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/omap/prm-inst.txt