Document the 'qcom,load-firmware' and 'qcom,xfer-mode' properties to
support SE(Serial Engine) firmware loading from the protocol driver and to
select the data transfer mode, either GPI DMA (Generic Packet Interface)
or non-GPI mode (PIO/CPU DMA).
I2C controller can operate in one of two modes based on the
'qcom,xfer-mode' property, and the firmware is loaded accordingly.
Co-developed-by: Mukesh Kumar Savaliya <quic_msavaliy@xxxxxxxxxxx>
Signed-off-by: Mukesh Kumar Savaliya <quic_msavaliy@xxxxxxxxxxx>
Signed-off-by: Viken Dadhaniya <quic_vdadhani@xxxxxxxxxxx>
---
.../devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml
index 9f66a3bb1f80..a26f34fce1bb 100644
--- a/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml
+++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-geni-qcom.yaml
@@ -66,6 +66,15 @@ properties:
required-opps:
maxItems: 1
+ qcom,load-firmware:
+ type: boolean
+ description: Optional property to load SE (serial engine) Firmware from protocol driver.
+
+ qcom,xfer-mode:
+ description: Value 1,2 and 3 represents FIFO, CPU DMA and GSI DMA mode respectively.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 3]
+
required:
- compatible
- interrupts
@@ -142,5 +151,7 @@ examples:
interconnect-names = "qup-core", "qup-config", "qup-memory";
power-domains = <&rpmhpd SC7180_CX>;
required-opps = <&rpmhpd_opp_low_svs>;
+ qcom,load-firmware;
+ qcom,xfer-mode = <1>;
};
...
--
2.34.1
