On Fri, May 25, 2018 at 03:31:20PM +0530, Rajendra Nayak wrote:
> The RPMh powerdomain driver aggregates the corner votes from various
> consumers for the ARC resources and communicates it to RPMh.
>
> We also add data for all powerdomains on sdm845 as part of the patch.
> The driver can be extended to support other SoCs which support RPMh
>
> Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/power/qcom,rpmhpd.txt | 65 ++++
> drivers/soc/qcom/Kconfig | 9 +
> drivers/soc/qcom/Makefile | 1 +
> drivers/soc/qcom/rpmhpd.c | 360 ++++++++++++++++++
> 4 files changed, 435 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
> create mode 100644 drivers/soc/qcom/rpmhpd.c
>
> diff --git a/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt b/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
> new file mode 100644
> index 000000000000..c1fa986c12ee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
> @@ -0,0 +1,65 @@
> +Qualcomm RPMh Powerdomains
> +
> +* For RPMh powerdomains, we communicate a performance state to RPMh
> +which then translates it into a corresponding voltage on a rail
> +
> +Required Properties:
> + - compatible: Should be one of the following
> + * qcom,sdm845-rpmhpd: RPMh powerdomain for the sdm845 family of SoC
> + - power-domain-cells: number of cells in power domain specifier
> + must be 1
> + - operating-points-v2: Phandle to the OPP table for the power-domain.
> + Refer to Documentation/devicetree/bindings/power/power_domain.txt
> + and Documentation/devicetree/bindings/opp/qcom-opp.txt for more details
> +
> +Example:
> +
> + rpmhpd: power-controller {
> + compatible = "qcom,sdm845-rpmhpd";
> + #power-domain-cells = <1>;
> + operating-points-v2 = <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>,
> + <&rpmhpd_opp_table>;
> + };
> +
> + rpmhpd_opp_table: opp-table {
> + compatible = "operating-points-v2-qcom-level", "operating-points-v2";
> +
> + rpmhpd_opp1: opp@1 {
> + qcom-corner = <16>;
Is it corner or level?
> + };
> +
> + rpmhpd_opp2: opp@2 {
> + qcom-corner = <48>;
> + };
> +
> + rpmhpd_opp3: opp@3 {
> + qcom-corner = <64>;
> + };
> +
> + rpmhpd_opp4: opp@4 {
> + qcom-corner = <128>;
> + };
> +
> + rpmhpd_opp5: opp@5 {
> + qcom-corner = <192>;
> + };
> +
> + rpmhpd_opp6: opp@6 {
> + qcom-corner = <256>;
> + };
> +
> + rpmhpd_opp7: opp@7 {
> + qcom-corner = <320>;
> + };
> +
> + rpmhpd_opp8: opp@8 {
> + qcom-corner = <416>;
> + };
> + };
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