Merge branch 'pm-cpufreq'

* pm-cpufreq: (36 commits)
  cpufreq: scpi: remove arm_big_little dependency
  drivers: psci: remove cluster terminology and dependency on physical_package_id
  cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
  cpufreq: intel_pstate: Add Skylake servers support
  cpufreq: intel_pstate: Replace bxt_funcs with core_funcs
  cpufreq: imx6q: add 696MHz operating point for i.mx6ul
  ARM: dts: imx6ul: add 696MHz operating point
  cpufreq: stats: Change return type of cpufreq_stats_update() as void
  powernv-cpufreq: Treat pstates as opaque 8-bit values
  powernv-cpufreq: Fix pstate_to_idx() to handle non-continguous pstates
  powernv-cpufreq: Add helper to extract pstate from PMSR
  cpu_cooling: Remove static-power related documentation
  cpufreq: imx6q: switch to Use clk_bulk_get() to refine clk operations
  PM / OPP: Make local function ti_opp_supply_set_opp() static
  PM / OPP: Add ti-opp-supply driver
  dt-bindings: opp: Introduce ti-opp-supply bindings
  cpufreq: ti-cpufreq: Add support for multiple regulators
  cpufreq: ti-cpufreq: Convert to module_platform_driver
  cpufreq: Add DVFS support for Armada 37xx
  MAINTAINERS: add new entries for Armada 37xx cpufreq driver
  ...
This commit is contained in:
Rafael J. Wysocki 2018-01-18 02:52:56 +01:00
commit f31c376025
28 changed files with 1361 additions and 678 deletions

View file

@ -14,3 +14,22 @@ following property before the previous one:
Example:
compatible = "marvell,armada-3720-db", "marvell,armada3720", "marvell,armada3710";
Power management
----------------
For power management (particularly DVFS and AVS), the North Bridge
Power Management component is needed:
Required properties:
- compatible : should contain "marvell,armada-3700-nb-pm", "syscon";
- reg : the register start and length for the North Bridge
Power Management
Example:
nb_pm: syscon@14000 {
compatible = "marvell,armada-3700-nb-pm", "syscon";
reg = <0x14000 0x60>;
}

View file

@ -0,0 +1,63 @@
Texas Instruments OMAP compatible OPP supply description
OMAP5, DRA7, and AM57 family of SoCs have Class0 AVS eFuse registers which
contain data that can be used to adjust voltages programmed for some of their
supplies for more efficient operation. This binding provides the information
needed to read these values and use them to program the main regulator during
an OPP transitions.
Also, some supplies may have an associated vbb-supply which is an Adaptive Body
Bias regulator which much be transitioned in a specific sequence with regards
to the vdd-supply and clk when making an OPP transition. By supplying two
regulators to the device that will undergo OPP transitions we can make use
of the multi regulator binding that is part of the OPP core described here [1]
to describe both regulators needed by the platform.
[1] Documentation/devicetree/bindings/opp/opp.txt
Required Properties for Device Node:
- vdd-supply: phandle to regulator controlling VDD supply
- vbb-supply: phandle to regulator controlling Body Bias supply
(Usually Adaptive Body Bias regulator)
Required Properties for opp-supply node:
- compatible: Should be one of:
"ti,omap-opp-supply" - basic OPP supply controlling VDD and VBB
"ti,omap5-opp-supply" - OMAP5+ optimized voltages in efuse(class0)VDD
along with VBB
"ti,omap5-core-opp-supply" - OMAP5+ optimized voltages in efuse(class0) VDD
but no VBB.
- reg: Address and length of the efuse register set for the device (mandatory
only for "ti,omap5-opp-supply")
- ti,efuse-settings: An array of u32 tuple items providing information about
optimized efuse configuration. Each item consists of the following:
volt: voltage in uV - reference voltage (OPP voltage)
efuse_offseet: efuse offset from reg where the optimized voltage is stored.
- ti,absolute-max-voltage-uv: absolute maximum voltage for the OPP supply.
Example:
/* Device Node (CPU) */
cpus {
cpu0: cpu@0 {
device_type = "cpu";
...
vdd-supply = <&vcc>;
vbb-supply = <&abb_mpu>;
};
};
/* OMAP OPP Supply with Class0 registers */
opp_supply_mpu: opp_supply@4a003b20 {
compatible = "ti,omap5-opp-supply";
reg = <0x4a003b20 0x8>;
ti,efuse-settings = <
/* uV offset */
1060000 0x0
1160000 0x4
1210000 0x8
>;
ti,absolute-max-voltage-uv = <1500000>;
};