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| author |   Dave Gerlach <d-gerlach@ti.com> | 2022-04-26 13:07:42 -0700 |
|---|---|---|
| committer |   Rob Herring <robh@kernel.org> | 2022-05-02 11:02:28 -0500 |
| commit | 1d7aff7788362fb85ef694874c065dc2e1f58a63 (patch) | |
| tree | 1467d1a9e8b5061866a3637f35c3954c2db62026 /Documentation/devicetree | |
| parent | dt-bindings: fsl: convert fsl,layerscape-scfg to YAML (diff) | |
| download | linux-dev-1d7aff7788362fb85ef694874c065dc2e1f58a63.tar.xz linux-dev-1d7aff7788362fb85ef694874c065dc2e1f58a63.zip | |
dt-bindings: wkup-m3-ipc: Add firmware-name property
Document that the firmware-name property can be used to indicate a file
contains I2C sequences for PMIC voltage scaling during deep sleep.
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>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220426200741.712842-2-dfustini@baylibre.com
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml b/Documentation/devicetree/bindings/soc/ti/wkup-m3-ipc.yaml index 88d690de050c..0df41c4f60c1 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"; }; }; |