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55b0affd26
In scmi firmware driver, it is better to bind the scmi protocol driver
"scmi_voltage_domain" with the node name of the protocol 17 and not
the sub-node named "regulator", because is a fixed string which doesn't
provide information and because it is not aligned with the other scmi
protocol nodes.
For example on stm32mp135f-dk board with device tree in stm32mp131.dtsi
scmi: scmi {
compatible = "linaro,scmi-optee";
#address-cells = <1>;
#size-cells = <0>;
linaro,optee-channel-id = <0>;
shmem = <&scmi_shm>;
scmi_clk: protocol@14 {
reg = <0x14>;
#clock-cells = <1>;
};
scmi_reset: protocol@16 {
reg = <0x16>;
#reset-cells = <1>;
};
scmi_voltd: protocol@17 {
reg = <0x17>;
scmi_regu: regulators {
#address-cells = <1>;
#size-cells = <0>;
scmi_reg11: voltd-reg11 {
reg = <VOLTD_SCMI_REG11>;
regulator-name = "reg11";
};
scmi_reg18: voltd-reg18 {
reg = <VOLTD_SCMI_REG18>;
regulator-name = "reg18";
};
scmi_usb33: voltd-usb33 {
reg = <VOLTD_SCMI_USB33>;
regulator-name = "usb33";
};
};
};
};
Before the patch:
> dm tree
scmi_agent 0 [ + ] scmi-over-optee |-- scmi
clk 1 [ + ] scmi_clk | |-- protocol@14
...
reset 1 [ ] scmi_reset_domain | |-- protocol@16
nop 2 [ + ] scmi_voltage_domain | `-- regulators
regulator 0 [ + ] scmi_regulator | |-- voltd-reg11
regulator 1 [ + ] scmi_regulator | |-- voltd-reg18
regulator 2 [ + ] scmi_regulator | |-- voltd-usb33
...
after the patch:
> dm tree
scmi_agent 0 [ + ] scmi-over-optee |-- scmi
clk 1 [ + ] scmi_clk | |-- protocol@14
...
reset 1 [ ] scmi_reset_domain | |-- protocol@16
nop 2 [ + ] scmi_voltage_domain | `-- protocol@17
regulator 0 [ + ] scmi_regulator | |-- voltd-reg11
regulator 1 [ + ] scmi_regulator | |-- voltd-reg18
regulator 2 [ + ] scmi_regulator | |-- voltd-usb33
...
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>