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linux/Documentation/devicetree/bindings/mfd/stericsson,db8500-prcmu.yaml

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mfd: db8500-prcmu: Add devicetree bindings This driver was merged in the early days of device tree on Arm in 2012 and somehow we failed to provide bindings for it. Fix it up with some YAML bindings. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-05-18 16:51:32 +02:00
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/stericsson,db8500-prcmu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ST-Ericsson DB8500 PRCMU - Power Reset and Control Management Unit
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description:
The DB8500 Power Reset and Control Management Unit is an XP70 8-bit
microprocessor that is embedded in the always-on power domain of the
DB8500 SoCs to manage the low power states, powering up and down parts
of the silicon, and controlling reset of different IP blocks.
properties:
$nodename:
pattern: '^prcmu@[0-9a-f]+$'
compatible:
description: The device is compatible both to the device-specific
compatible "stericsson,db8500-prcmu" and "syscon". The latter
compatible is needed for the device to be exposed as a system
controller so that arbitrary registers can be access by
different operating system components.
items:
- const: stericsson,db8500-prcmu
- const: syscon
reg:
items:
- description: Main PRCMU register area
- description: PRCMU TCPM register area
- description: PRCMU TCDM register area
reg-names:
items:
- const: prcmu
- const: prcmu-tcpm
- const: prcmu-tcdm
interrupts:
maxItems: 1
'#address-cells':
const: 1
'#size-cells':
const: 1
ranges: true
interrupt-controller: true
'#interrupt-cells':
const: 2
db8500-prcmu-regulators:
description: Node describing the DB8500 regulators. These are mainly
power rails inside the silicon but some of those are also routed
out to external pins.
type: object
properties:
compatible:
const: stericsson,db8500-prcmu-regulator
db8500_vape:
description: The voltage for the application processor, the
main voltage domain for the chip.
type: object
$ref: ../regulator/regulator.yaml#
db8500_varm:
description: The voltage for the ARM Cortex A-9 CPU.
type: object
$ref: ../regulator/regulator.yaml#
db8500_vmodem:
description: The voltage for the modem subsystem.
type: object
$ref: ../regulator/regulator.yaml#
db8500_vpll:
description: The voltage for the phase locked loop clocks.
type: object
$ref: ../regulator/regulator.yaml#
db8500_vsmps1:
description: Also known as VIO12, is a step-down voltage regulator
for 1.2V I/O. SMPS means System Management Power Source.
type: object
$ref: ../regulator/regulator.yaml#
db8500_vsmps2:
description: Also known as VIO18, is a step-down voltage regulator
for 1.8V I/O. SMPS means System Management Power Source.
type: object
$ref: ../regulator/regulator.yaml#
db8500_vsmps3:
description: This is a step-down voltage regulator
for 0.87 thru 1.875V I/O. SMPS means System Management Power Source.
type: object
$ref: ../regulator/regulator.yaml#
db8500_vrf1:
description: RF transciever voltage regulator.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sva_mmdsp:
description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP)
voltage regulator. This is the voltage for the accelerator DSP
for video encoding and decoding.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sva_mmdsp_ret:
description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP)
voltage regulator for retention mode.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sva_pipe:
description: Smart Video Accelerator (SVA) multimedia DSP (MMDSP)
voltage regulator for the data pipe.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sia_mmdsp:
description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP)
voltage regulator. This is the voltage for the accelerator DSP
for image encoding and decoding.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sia_mmdsp_ret:
description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP)
voltage regulator for retention mode.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sia_pipe:
description: Smart Image Accelerator (SIA) multimedia DSP (MMDSP)
voltage regulator for the data pipe.
type: object
$ref: ../regulator/regulator.yaml#
db8500_sga:
description: Smart Graphics Accelerator (SGA) voltage regulator.
This is in effect controlling the power to the MALI400 3D
accelerator block.
type: object
$ref: ../regulator/regulator.yaml#
db8500_b2r2_mcde:
description: Blit Blend Rotate and Rescale (B2R2), and Multi-Channel
Display Engine (MCDE) voltage regulator. These are two graphics
blocks.
type: object
$ref: ../regulator/regulator.yaml#
db8500_esram12:
description: Embedded Static RAM (ESRAM) 1 and 2 voltage regulator.
type: object
$ref: ../regulator/regulator.yaml#
db8500_esram12_ret:
description: Embedded Static RAM (ESRAM) 1 and 2 voltage regulator for
retention mode.
type: object
$ref: ../regulator/regulator.yaml#
db8500_esram34:
description: Embedded Static RAM (ESRAM) 3 and 4 voltage regulator.
type: object
$ref: ../regulator/regulator.yaml#
db8500_esram34_ret:
description: Embedded Static RAM (ESRAM) 3 and 4 voltage regulator for
retention mode.
type: object
$ref: ../regulator/regulator.yaml#
required:
- compatible
- db8500_vape
- db8500_varm
- db8500_vmodem
- db8500_vpll
- db8500_vsmps1
- db8500_vsmps2
- db8500_vsmps3
- db8500_vrf1
- db8500_sva_mmdsp
- db8500_sva_mmdsp_ret
- db8500_sva_pipe
- db8500_sia_mmdsp
- db8500_sia_mmdsp_ret
- db8500_sia_pipe
- db8500_sga
- db8500_b2r2_mcde
- db8500_esram12
- db8500_esram12_ret
- db8500_esram34
- db8500_esram34_ret
additionalProperties: false
patternProperties:
"^thermal@[0-9a-f]+$":
description: Node describing the DB8500 thermal control functions.
This binds to an operating system driver that monitors the
temperature of the SoC.
type: object
properties:
compatible:
const: stericsson,db8500-thermal
reg:
maxItems: 1
interrupts:
items:
- description: Hotmon low interrupt (falling temperature)
- description: Hotmon high interrupt (rising temperature)
interrupt-names:
items:
- const: IRQ_HOTMON_LOW
- const: IRQ_HOTMON_HIGH
'#thermal-sensor-cells':
const: 0
additionalProperties: false
"^prcmu-timer-4@[0-9a-f]+$":
description: Node describing the externally visible timer 4 in the
PRCMU block. This timer is interesting to the operating system
since even thought it has a very low resolution (32768 Hz) it is
always on, and thus provides a consistent monotonic timeline for
the system.
type: object
properties:
compatible:
const: stericsson,db8500-prcmu-timer-4
reg:
maxItems: 1
additionalProperties: false
"^ab850[05]$":
description: Node describing the Analog Baseband 8500 mixed-signals
ASIC AB8500 and subcomponents. The AB8500 is accessed through the
PRCMU and hence it appears here. This component has a separate
set of devicetree bindings. The AB8505 is a newer version of the
same ASIC.
type: object
mfd: ab8500: Rewrite bindings in YAML This rewrites the former text based AB8500 bindings in YAML. When the AB8500 bindings were first written (in 2012) we were not strict on some things and node names were definitely not standardized. This patch uses standard node names to most of the subnodes on the AB8500 and is accompanied by another patch fixing all the DTS files to conform to this. The bindings are not as perfect as newly written bindings would be, it is a best effort to deal with the legacy. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220115002649.1526163-1-linus.walleij@linaro.org
2022-01-15 01:26:49 +01:00
$ref: stericsson,ab8500.yaml#
mfd: db8500-prcmu: Add devicetree bindings This driver was merged in the early days of device tree on Arm in 2012 and somehow we failed to provide bindings for it. Fix it up with some YAML bindings. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-05-18 16:51:32 +02:00
required:
- compatible
- reg
- '#address-cells'
- '#size-cells'
- ranges
- interrupts
- interrupt-controller
- '#interrupt-cells'
- db8500-prcmu-regulators
additionalProperties: false
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