Bindings/mfd/stericsson,db8500-prcmu.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mfd/stericsson,db8500-prcmu.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: ST-Ericsson DB8500 PRCMU - Power Reset and Control Management Unit
   8
   9 maintainers:
  10   - Linus Walleij <linus.walleij@linaro.org>
  11
  12 description:
  13   The DB8500 Power Reset and Control Management Unit is an XP70 8-bit
  14   microprocessor that is embedded in the always-on power domain of the
  15   DB8500 SoCs to manage the low power states, powering up and down parts
  16   of the silicon, and controlling reset of different IP blocks.
  17
  18 properties:
  19   $nodename:
  20     pattern: '^prcmu@[0-9a-f]+$'
  21
  22   compatible:
  23     description: The device is compatible both to the device-specific
  24       compatible "stericsson,db8500-prcmu" and "syscon". The latter
  25       compatible is needed for the device to be exposed as a system
  26       controller so that arbitrary registers can be access by
  27       different operating system components.
  28     items:
  29       - const: stericsson,db8500-prcmu
  30       - const: syscon
  31
  32   reg:
  33     items:
  34       - description: Main PRCMU register area
  35       - description: PRCMU TCPM register area
  36       - description: PRCMU TCDM register area
  37
  38   reg-names:
  39     items:
  40       - const: prcmu
  41       - const: prcmu-tcpm
  42       - const: prcmu-tcdm
  43
  44   interrupts:
  45     maxItems: 1
  46
  47   '#address-cells':
  48     const: 1
  49
  50   '#size-cells':
  51     const: 1
  52
  53   ranges: true
  54
  55   interrupt-controller: true
  56
  57   '#interrupt-cells':
  58     const: 2
  59
  60   db8500-prcmu-regulators:
  61     description: Node describing the DB8500 regulators. These are mainly
  62       power rails inside the silicon but some of those are also routed
  63       out to external pins.
  64     type: object
  65
  66     properties:
  67       compatible:
  68         const: stericsson,db8500-prcmu-regulator
  69
  70       db8500_vape:
  71         description: The voltage for the application processor, the
  72           main voltage domain for the chip.
  73         type: object
  74         $ref: ../regulator/regulator.yaml#
  75         unevaluatedProperties: false
  76
  77       db8500_varm:
  78         description: The voltage for the ARM Cortex-A9 CPU.
  79         type: object
  80         $ref: ../regulator/regulator.yaml#
  81         unevaluatedProperties: false
  82
  83       db8500_vmodem:
  84         description: The voltage for the modem subsystem.
  85         type: object
  86         $ref: ../regulator/regulator.yaml#
  87         unevaluatedProperties: false
  88
  89       db8500_vpll:
  90         description: The voltage for the phase locked loop clocks.
  91         type: object
  92         $ref: ../regulator/regulator.yaml#
  93         unevaluatedProperties: false
  94
  95       db8500_vsmps1:
  96         description: Also known as VIO12, is a step-down voltage regulator
  97           for 1.2V I/O. SMPS means System Management Power Source.
  98         type: object
  99         $ref: ../regulator/regulator.yaml#
 100         unevaluatedProperties: false
 101
 102       db8500_vsmps2:
 103         description: Also known as VIO18, is a step-down voltage regulator
 104           for 1.8V I/O. SMPS means System Management Power Source.
 105         type: object
 106         $ref: ../regulator/regulator.yaml#
 107         unevaluatedProperties: false
 108
 109       db8500_vsmps3:
 110         description: This is a step-down voltage regulator
 111           for 0.87 thru 1.875V I/O. SMPS means System Management Power Source.
 112         type: object
 113         $ref: ../regulator/regulator.yaml#
 114         unevaluatedProperties: false
 115
 116       db8500_vrf1:
 117         description: RF transceiver voltage regulator.
 118         type: object
 119         $ref: ../regulator/regulator.yaml#
 120         unevaluatedProperties: false
 121
 122       db8500_sva_mmdsp:
 123         description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP)
 124           voltage regulator. This is the voltage for the accelerator DSP
 125           for video encoding and decoding.
 126         type: object
 127         $ref: ../regulator/regulator.yaml#
 128         unevaluatedProperties: false
 129
 130       db8500_sva_mmdsp_ret:
 131         description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP)
 132           voltage regulator for retention mode.
 133         type: object
 134         $ref: ../regulator/regulator.yaml#
 135         unevaluatedProperties: false
 136
 137       db8500_sva_pipe:
 138         description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP)
 139           voltage regulator for the data pipe.
 140         type: object
 141         $ref: ../regulator/regulator.yaml#
 142         unevaluatedProperties: false
 143
 144       db8500_sia_mmdsp:
 145         description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP)
 146           voltage regulator. This is the voltage for the accelerator DSP
 147           for image encoding and decoding.
 148         type: object
 149         $ref: ../regulator/regulator.yaml#
 150         unevaluatedProperties: false
 151
 152       db8500_sia_mmdsp_ret:
 153         description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP)
 154           voltage regulator for retention mode.
 155         type: object
 156         $ref: ../regulator/regulator.yaml#
 157         unevaluatedProperties: false
 158
 159       db8500_sia_pipe:
 160         description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP)
 161           voltage regulator for the data pipe.
 162         type: object
 163         $ref: ../regulator/regulator.yaml#
 164         unevaluatedProperties: false
 165
 166       db8500_sga:
 167         description: Smart Graphics Accelerator (SGA) voltage regulator.
 168           This is in effect controlling the power to the MALI400 3D
 169           accelerator block.
 170         type: object
 171         $ref: ../regulator/regulator.yaml#
 172         unevaluatedProperties: false
 173
 174       db8500_b2r2_mcde:
 175         description: Blit Blend Rotate and Rescale (B2R2), and Multi-Channel
 176           Display Engine (MCDE) voltage regulator. These are two graphics
 177           blocks.
 178         type: object
 179         $ref: ../regulator/regulator.yaml#
 180         unevaluatedProperties: false
 181
 182       db8500_esram12:
 183         description: Embedded Static RAM (ESRAM) 1 and 2 voltage regulator.
 184         type: object
 185         $ref: ../regulator/regulator.yaml#
 186         unevaluatedProperties: false
 187
 188       db8500_esram12_ret:
 189         description: Embedded Static RAM (ESRAM) 1 and 2 voltage regulator for
 190           retention mode.
 191         type: object
 192         $ref: ../regulator/regulator.yaml#
 193         unevaluatedProperties: false
 194
 195       db8500_esram34:
 196         description: Embedded Static RAM (ESRAM) 3 and 4 voltage regulator.
 197         type: object
 198         $ref: ../regulator/regulator.yaml#
 199         unevaluatedProperties: false
 200
 201       db8500_esram34_ret:
 202         description: Embedded Static RAM (ESRAM) 3 and 4 voltage regulator for
 203           retention mode.
 204         type: object
 205         $ref: ../regulator/regulator.yaml#
 206         unevaluatedProperties: false
 207
 208     required:
 209       - compatible
 210       - db8500_vape
 211       - db8500_varm
 212       - db8500_vmodem
 213       - db8500_vpll
 214       - db8500_vsmps1
 215       - db8500_vsmps2
 216       - db8500_vsmps3
 217       - db8500_vrf1
 218       - db8500_sva_mmdsp
 219       - db8500_sva_mmdsp_ret
 220       - db8500_sva_pipe
 221       - db8500_sia_mmdsp
 222       - db8500_sia_mmdsp_ret
 223       - db8500_sia_pipe
 224       - db8500_sga
 225       - db8500_b2r2_mcde
 226       - db8500_esram12
 227       - db8500_esram12_ret
 228       - db8500_esram34
 229       - db8500_esram34_ret
 230
 231     additionalProperties: false
 232
 233 patternProperties:
 234   "^thermal@[0-9a-f]+$":
 235     description: Node describing the DB8500 thermal control functions.
 236       This binds to an operating system driver that monitors the
 237       temperature of the SoC.
 238     type: object
 239
 240     properties:
 241       compatible:
 242         const: stericsson,db8500-thermal
 243
 244       reg:
 245         maxItems: 1
 246
 247       interrupts:
 248         items:
 249           - description: Hotmon low interrupt (falling temperature)
 250           - description: Hotmon high interrupt (rising temperature)
 251
 252       interrupt-names:
 253         items:
 254           - const: IRQ_HOTMON_LOW
 255           - const: IRQ_HOTMON_HIGH
 256
 257       '#thermal-sensor-cells':
 258         const: 0
 259
 260     additionalProperties: false
 261
 262   "^prcmu-timer-4@[0-9a-f]+$":
 263     description: Node describing the externally visible timer 4 in the
 264       PRCMU block. This timer is interesting to the operating system
 265       since even thought it has a very low resolution (32768 Hz) it is
 266       always on, and thus provides a consistent monotonic timeline for
 267       the system.
 268     type: object
 269
 270     properties:
 271       compatible:
 272         const: stericsson,db8500-prcmu-timer-4
 273
 274       reg:
 275         maxItems: 1
 276
 277     additionalProperties: false
 278
 279   "^ab850[05]$":
 280     description: Node describing the Analog Baseband 8500 mixed-signals
 281       ASIC AB8500 and subcomponents. The AB8500 is accessed through the
 282       PRCMU and hence it appears here. This component has a separate
 283       set of devicetree bindings. The AB8505 is a newer version of the
 284       same ASIC.
 285     type: object
 286     $ref: stericsson,ab8500.yaml#
 287
 288 required:
 289   - compatible
 290   - reg
 291   - '#address-cells'
 292   - '#size-cells'
 293   - ranges
 294   - interrupts
 295   - interrupt-controller
 296   - '#interrupt-cells'
 297   - db8500-prcmu-regulators
 298
 299 additionalProperties: false