| Message ID | 1578941778-23321-2-git-send-email-stefan.wahren@i2se.com |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | ARM: Enable thermal support for Raspberry Pi 4 | expand |
On Mon, Jan 13, 2020 at 12:56 PM Stefan Wahren <stefan.wahren@i2se.com> wrote: > > Since the BCM2711 doesn't have a AVS TMON block, the thermal information > must be retrieved from the AVS ring oscillator block. This block is part > of the AVS monitor which contains a bunch of raw sensors. > > Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> > Reviewed-by: Rob Herring <robh@kernel.org> > Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> > --- > .../bindings/thermal/brcm,avs-ro-thermal.yaml | 45 ++++++++++++++++++++++ > 1 file changed, 45 insertions(+) > create mode 100644 Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml The example fails 'make dt_binding_check': /builds/robherring/linux-dt-bindings/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.example.dt.yaml: thermal: 'reg' is a required property > diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml > new file mode 100644 > index 0000000..98e7b57 > --- /dev/null > +++ b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml > @@ -0,0 +1,45 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/thermal/brcm,avs-ro-thermal.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Broadcom AVS ring oscillator thermal > + > +maintainers: > + - Stefan Wahren <wahrenst@gmx.net> > + > +description: |+ > + The thermal node should be the child of a syscon node with the > + required property: > + > + - compatible: Should be one of the following: > + "brcm,bcm2711-avs-monitor", "syscon", "simple-mfd" > + > + Refer to the the bindings described in > + Documentation/devicetree/bindings/mfd/syscon.txt > + > +properties: > + compatible: > + const: brcm,bcm2711-thermal > + > + reg: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + > +examples: > + - | > + avs-monitor@7d5d2000 { > + compatible = "brcm,bcm2711-avs-monitor", > + "syscon", "simple-mfd"; > + reg = <0x7d5d2000 0xf00>; > + > + thermal: thermal { > + compatible = "brcm,bcm2711-thermal"; > + #thermal-sensor-cells = <0>; Also this is not documented. That's not caught because 'additionalProperties: false' is also needed. Rob
Hi Rob, Am 16.01.20 um 18:33 schrieb Rob Herring: > On Mon, Jan 13, 2020 at 12:56 PM Stefan Wahren <stefan.wahren@i2se.com> wrote: >> Since the BCM2711 doesn't have a AVS TMON block, the thermal information >> must be retrieved from the AVS ring oscillator block. This block is part >> of the AVS monitor which contains a bunch of raw sensors. >> >> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> >> Reviewed-by: Rob Herring <robh@kernel.org> >> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> >> --- >> .../bindings/thermal/brcm,avs-ro-thermal.yaml | 45 ++++++++++++++++++++++ >> 1 file changed, 45 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml > The example fails 'make dt_binding_check': > > /builds/robherring/linux-dt-bindings/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.example.dt.yaml: > thermal: 'reg' is a required property can you please explain what is the reason for this? The example below has a reg property. I'm confused. Best regards Stefan > >> diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml >> new file mode 100644 >> index 0000000..98e7b57 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml >> @@ -0,0 +1,45 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/thermal/brcm,avs-ro-thermal.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Broadcom AVS ring oscillator thermal >> + >> +maintainers: >> + - Stefan Wahren <wahrenst@gmx.net> >> + >> +description: |+ >> + The thermal node should be the child of a syscon node with the >> + required property: >> + >> + - compatible: Should be one of the following: >> + "brcm,bcm2711-avs-monitor", "syscon", "simple-mfd" >> + >> + Refer to the the bindings described in >> + Documentation/devicetree/bindings/mfd/syscon.txt >> + >> +properties: >> + compatible: >> + const: brcm,bcm2711-thermal >> + >> + reg: >> + maxItems: 1 >> + >> +required: >> + - compatible >> + - reg >> + >> +examples: >> + - | >> + avs-monitor@7d5d2000 { >> + compatible = "brcm,bcm2711-avs-monitor", >> + "syscon", "simple-mfd"; >> + reg = <0x7d5d2000 0xf00>; >> + >> + thermal: thermal { >> + compatible = "brcm,bcm2711-thermal"; >> + #thermal-sensor-cells = <0>; > Also this is not documented. That's not caught because > 'additionalProperties: false' is also needed. > > Rob
Am 16.01.20 um 19:23 schrieb Stefan Wahren: > Hi Rob, > > Am 16.01.20 um 18:33 schrieb Rob Herring: >> On Mon, Jan 13, 2020 at 12:56 PM Stefan Wahren <stefan.wahren@i2se.com> wrote: >>> Since the BCM2711 doesn't have a AVS TMON block, the thermal information >>> must be retrieved from the AVS ring oscillator block. This block is part >>> of the AVS monitor which contains a bunch of raw sensors. >>> >>> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> >>> Reviewed-by: Rob Herring <robh@kernel.org> >>> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> >>> --- >>> .../bindings/thermal/brcm,avs-ro-thermal.yaml | 45 ++++++++++++++++++++++ >>> 1 file changed, 45 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml >> The example fails 'make dt_binding_check': >> >> /builds/robherring/linux-dt-bindings/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.example.dt.yaml: >> thermal: 'reg' is a required property > can you please explain what is the reason for this? The example below > has a reg property. I'm confused. Please ignore, i got the issue.
diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml new file mode 100644 index 0000000..98e7b57 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/brcm,avs-ro-thermal.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom AVS ring oscillator thermal + +maintainers: + - Stefan Wahren <wahrenst@gmx.net> + +description: |+ + The thermal node should be the child of a syscon node with the + required property: + + - compatible: Should be one of the following: + "brcm,bcm2711-avs-monitor", "syscon", "simple-mfd" + + Refer to the the bindings described in + Documentation/devicetree/bindings/mfd/syscon.txt + +properties: + compatible: + const: brcm,bcm2711-thermal + + reg: + maxItems: 1 + +required: + - compatible + - reg + +examples: + - | + avs-monitor@7d5d2000 { + compatible = "brcm,bcm2711-avs-monitor", + "syscon", "simple-mfd"; + reg = <0x7d5d2000 0xf00>; + + thermal: thermal { + compatible = "brcm,bcm2711-thermal"; + #thermal-sensor-cells = <0>; + }; + }; +...