Lines Matching +full:opp +full:- +full:specific
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/opp/opp-v2-base.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Generic OPP (Operating Performance Points) Common Properties
10 - Viresh Kumar <viresh.kumar@linaro.org>
13 Devices work at voltage-current-frequency combinations and some implementations
25 pattern: '^opp-table(-[a-z0-9]+)?$'
27 opp-shared:
29 Indicates that device nodes using this OPP Table Node's phandle switch
32 lines, but they share OPP tables.
36 '^opp(-?[0-9]+)*$':
39 One or more OPP nodes describing voltage-current-frequency combinations.
41 OPP. These are mandatory except for the case where the OPP table is
42 present only to indicate dependency between devices using the opp-shared
46 opp-hz:
48 Frequency in Hz, expressed as a 64-bit big-endian integer. This is a
50 property to uniquely identify the OPP nodes exists. Devices like power
54 array of frequencies. The OPP binding doesn't provide any provisions
57 specific binding.
61 opp-microvolt:
63 Voltage for the OPP
70 by angular brackets <>. The OPP binding doesn't provide any provisions to
72 need to be configured and that is left for the implementation specific
83 opp-microamp:
86 system specific parameters (such as transients, process, aging,
90 Should only be set if opp-microvolt or opp-microvolt-<name> is set for
91 the OPP.
97 required. The OPP binding doesn't provide any provisions to relate the
99 to be configured and that is left for the implementation specific
104 opp-microwatt:
106 The power for the OPP in micro-Watts.
112 required. The OPP binding doesn't provide any provisions to relate the
114 to be configured and that is left for the implementation specific
119 opp-level:
124 opp-peak-kBps:
127 32-bit big-endian integers. Each element of the array represents the
133 opp-avg-kBps:
136 of 32-bit big-endian integers. Each element of the array represents the
139 meaningful in OPP tables where opp-peak-kBps is present.
143 clock-latency-ns:
146 switching to this OPP from any other OPP.
148 turbo-mode:
150 Marks the OPP to be used only for turbo modes. Turbo mode is available
156 opp-suspend:
158 Marks the OPP to be used during device suspend. If multiple OPPs in
159 the table have this, the OPP with highest opp-hz will be used.
162 opp-supported-hw:
165 from the larger set present in the OPP table, based on the current
169 a sub-group of hardware versions supported by the OPP. i.e. <sub-group
170 A>, <sub-group B>, etc. The OPP will be enabled if _any_ of these
171 sub-groups match the hardware's version.
173 Each sub-group is a platform defined array representing the hierarchy
178 opp-supported-hw = <X1 Y1 Z1>, <X2 Y2 Z2>, <X3 Y3 Z3>.
183 hardware's level version and a non-zero output for _all_ the levels in
184 a sub-group means the OPP is supported by hardware. A value of
185 0xFFFFFFFF for each level in the sub-group will enable the OPP for all
187 $ref: /schemas/types.yaml#/definitions/uint32-matrix
193 required-opps:
195 This contains phandle to an OPP node in another device's OPP table. It
196 may contain an array of phandles, where each phandle points to an OPP
198 OPP nodes in the same OPP table. This specifies the minimum required
199 OPP of the device(s), whose OPP's phandle is present in this property,
200 for the functioning of the current device at the current OPP (where
202 $ref: /schemas/types.yaml#/definitions/phandle-array
207 '^opp-microvolt-':
209 Named opp-microvolt property. This is exactly similar to the above
210 opp-microvolt property, but allows multiple voltage ranges to be
211 provided for the same OPP. At runtime, the platform can pick a <name>
212 and matching opp-microvolt-<name> property will be enabled for all
213 OPPs. If the platform doesn't pick a specific <name> or the <name>
214 doesn't match with any opp-microvolt-<name> properties, then
215 opp-microvolt property shall be used, if present.
216 $ref: /schemas/types.yaml#/definitions/uint32-matrix
223 '^opp-microamp-':
225 Named opp-microamp property. Similar to opp-microvolt-<name> property,
227 $ref: /schemas/types.yaml#/definitions/uint32-array
231 '^opp-microwatt-':
233 Named opp-microwatt property. Similar to opp-microamp-<name> property,
235 $ref: /schemas/types.yaml#/definitions/uint32-array
240 opp-avg-kBps: [ opp-peak-kBps ]
243 - compatible