| Message ID | 20220426193253.663582-2-dfustini@baylibre.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/2] dt-bindings: wkup-m3-ipc: Add ti,scale-data-fw property | expand |
On Tue, 26 Apr 2022 12:32:52 -0700, Drew Fustini wrote: > From: Dave Gerlach <d-gerlach@ti.com> > > Add documentation for ti,scale-data-fw property to enable I2C PMIC > voltage scaling during deep sleep. The property contains the name of a > binary file for the CM3 firmware to load. > > Based on previous work by Russ Dill. > > Signed-off-by: Dave Gerlach <d-gerlach@ti.com> > Signed-off-by: Keerthy <j-keerthy@ti.com> > [dfustini: split from driver patch and convert to json-schema] > Signed-off-by: Drew Fustini <dfustini@baylibre.com> > --- > Changes from v1: > - change 'ti,scale-data-fw' to 'firmware-name' > - add 'firmware-name' property to the examples > > .../devicetree/bindings/soc/ti/wkup-m3-ipc.yaml | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > Applied, thanks!
diff --git a/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml b/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml index 88d690de050c..fc8fa6ba8c43 100644 --- a/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml +++ b/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml @@ -40,6 +40,12 @@ description: |+ override the pin's existing bias (pull-up/pull-down) and value (high/low) when IO isolation is active. + Support for I2C PMIC Voltage Scaling + ==================================== + It is possible to pass the name of a binary file to load into the CM3 memory. + The binary data is the I2C sequences for the CM3 to send out to the PMIC + during low power mode entry. + properties: compatible: enum: @@ -67,6 +73,10 @@ properties: mbox_wkupm3 child node. maxItems: 1 + firmware-name: + description: + Name of binary file with I2C sequences for PMIC voltage scaling + ti,vtt-gpio-pin: $ref: /schemas/types.yaml#/definitions/uint32 description: GPIO pin connected to enable pin on VTT regulator @@ -117,6 +127,7 @@ examples: ti,rproc = <&wkup_m3>; mboxes = <&am335x_mailbox &mbox_wkupm3>; ti,vtt-gpio-pin = <7>; + firmware-name = "am335x-evm-scale-data.bin"; }; }; @@ -157,6 +168,7 @@ examples: ti,rproc = <&wkup_m3>; mboxes = <&am437x_mailbox &mbox_wkupm3>; ti,set-io-isolation; + firmware-name = "am43x-evm-scale-data.bin"; }; };