9e0a737bb6
Replace a colon added mistakenly at a line end with a semicolon. Change-Id: I41a51db834489c9fad7ece35a58eccadd35d3a20 Signed-off-by: Varshitha H N <quic_vhn@quicinc.com>
357 lines
12 KiB
YAML
357 lines
12 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pwm/qcom,pwm-qti-lpg.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. Light Pulse Generator
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maintainers:
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- Subbaraman Narayanamurthy <quic_subbaram@quicinc.com>
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description: |
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This binding document describes the properties of LPG (Light Pulse Generator)
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device module in Qualcomm Technologies, Inc. PMIC chips.
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properties:
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compatible:
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const: qcom,pwm-lpg
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reg:
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minItems: 1
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maxItems: 2
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description: |
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Register base for LPG and LUT modules.
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reg-names:
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oneOf:
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- const: lpg-base
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- items:
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- const: lpg-base
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- const: lut-base
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"#pwm-cells":
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const: 2
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qcom,num-lpg-channels:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The number of the consecutive LPG/PWM channels in the chip.
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nvmem-names:
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description: |
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The nvmem device name(s) for the SDAM module(s) where the
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LUT pattern data is stored. This property is required
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only when LUT mode is supported with a SDAM module
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instead of a LUT module. It can take the following
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mutually exclusive sets of values
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oneOf:
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- const: ppg_sdam
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- items:
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- const: lut_sdam
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- const: lpg_chan_sdam
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nvmem:
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minItems: 1
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maxItems: 2
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description: |
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Phandle(s) of the nvmem device(s) to access the LUT stored
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in the SDAM module(s). This property is required only when
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LUT mode is supported and the LUT pattern is stored in
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SDAM modules instead of a LUT module.
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qcom,pbs-client:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Phandle of the PBS client used for sending the PBS
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trigger. This property is required when LUT mode is
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supported and the LUT pattern is stored in a single SDAM
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module (not two) instead of a LUT module.
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qcom,lut-sdam-base:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The register base of the LUT entries stored in SDAM. This
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property is required only when LUT mode is supported and
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the LUT pattern is stored in a SDAM module instead of a
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LUT module.
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qcom,lut-patterns:
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description: |
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Duty ratios in percentages for LPG working at LUT mode.
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These duty ratios will be translated into PWM values
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and stored in LUT or SDAM module shared for all LPG
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channels. The LUT module has resource to store 47 PWM
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values at max while SDAM module can store up to 64 PWM
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values. This property is required if any LPG channels
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support LUT mode.
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$ref: /schemas/types.yaml#/definitions/uint32-array
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maxItems: 64
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required:
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- compatible
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- reg
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- reg-names
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- "#pwm-cells"
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- qcom,num-lpg-channels
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patternProperties:
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"^lpg@[0-9a-f]$":
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type: object
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$ref: pwm.yaml#
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unevaluatedProperties: false
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properties:
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qcom,lpg-chan-id:
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minimum: 1
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maximum: 8
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The LPG channel's hardware ID indexed from 1. Allowed
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range is 1 - 8. Maximum value depends on the number of
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channels supported on PMIC. Cannot specify this property
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for a channel that is PFM enabled.
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qcom,lpg-sdam-base:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Register base address for LPG configuration in SDAM for
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the LPG channel specified under "qcom,lpg-chan-id".
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This property is required if LUT mode is supported with
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a SDAM module.
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qcom,ramp-step-ms:
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description: |
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The step duration in milliseconds for LPG staying at each
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duty specified in the LUT pattern. Allowed range
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1 - 511 when LUT module is used, and 8 - 2000 when SDAM is used.
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qcom,ramp-high-index:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The high index of the LUT pattern where LPG ends up
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ramping to. Allowed range 1 - 47 when LUT module
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is used, and 1 - 64 when SDAM module is used.
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qcom,ramp-low-index:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The low index of the LUT pattern from where LPG begins
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ramping from. The ramp-low-index should be always less
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than ramp-high-index when SDAM module is used. Allowed
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range 0 - 46 when LUT module is used, and 0 - 63 when
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SDAM module is used.
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qcom,ramp-pattern-repeat:
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description: |
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The flag to specify if LPG would be ramping with the LUT
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pattern repeatedly.
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type: boolean
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qcom,ramp-pause-hi-count:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The number of step counts for which the LPG will continue
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to hold the output after it has ramped up to the high
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index of the LUT. Allowed range 0 - 254 if SDAM is used.
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qcom,ramp-pause-lo-count:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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The number of step counts for which the LPG will continue
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to hold the output after it has ramped down to the low
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index of the LUT. Allowed range 0 - 254 if SDAM is used.
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qcom,ramp-from-low-to-high:
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description: |
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The flag to specify the LPG ramping direction. The ramping
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direction is from low index to high index of the LUT
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pattern if it's specified. This property is not required
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when SDAM module is used.
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type: boolean
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required:
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- qcom,lpg-chan-id
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- qcom,ramp-step-ms
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- qcom,ramp-high-index
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- qcom,ramp-low-index
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allOf:
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- if:
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properties:
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nvmem: true
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then:
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patternProperties:
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"^lpg@[0-9a-f]$":
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properties:
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qcom,lpg-sdam-base: true
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qcom,ramp-step-ms:
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minimum: 8
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maximum: 2000
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qcom,ramp-high-index:
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minimum: 1
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maximum: 64
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qcom,ramp-low-index:
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minimum: 0
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maximum: 63
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qcom,ramp-pause-lo-count:
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minimum: 0
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maximum: 254
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qcom,ramp-pause-hi-count:
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minimum: 0
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maximum: 254
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else:
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patternProperties:
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"^lpg@[0-9a-f]$":
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properties:
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qcom,lpg-sdam-base: false
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qcom,ramp-step-ms:
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minimum: 1
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maximum: 511
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qcom,ramp-high-index:
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minimum: 1
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maximum: 47
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qcom,ramp-low-index:
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minimum: 0
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maximum: 46
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additionalProperties: false
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examples:
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- |
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pm8150l_lpg: lpg@b100 {
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compatible = "qcom,pwm-lpg";
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reg = <0xb100>, <0xb000>;
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reg-names = "lpg-base", "lut-base";
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qcom,num-lpg-channels = <6>;
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#pwm-cells = <2>;
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qcom,lut-patterns = <0 14 28 42 56 70 84 100
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100 84 70 56 42 28 14 0>;
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lpg@1 {
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qcom,lpg-chan-id = <1>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <15>;
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qcom,ramp-from-low-to-high;
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qcom,ramp-pattern-repeat;
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};
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lpg@2 {
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qcom,lpg-chan-id = <2>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <15>;
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qcom,ramp-from-low-to-high;
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qcom,ramp-pattern-repeat;
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};
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lpg@3 {
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qcom,lpg-chan-id = <3>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <15>;
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qcom,ramp-from-low-to-high;
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qcom,ramp-pattern-repeat;
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};
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};
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- |
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pmi632_lpg: lpg@b100 {
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compatible = "qcom,pwm-lpg";
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reg = <0xb100>;
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reg-names = "lpg-base";
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qcom,num-lpg-channels = <3>;
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#pwm-cells = <2>;
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nvmem-names = "ppg_sdam";
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nvmem = <&sdam7>;
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qcom,pbs-client = <&pbs_client_3>;
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qcom,lut-sdam-base = <0x80>;
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qcom,lut-patterns = <0 14 28 42 56 70 84 100
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100 84 70 56 42 28 14 0>;
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lpg@1 {
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qcom,lpg-sdam-base = <0x48>;
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qcom,lpg-chan-id = <1>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <15>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-pattern-repeat;
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};
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lpg@2 {
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qcom,lpg-sdam-base = <0x56>;
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qcom,lpg-chan-id = <2>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <15>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-pattern-repeat;
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};
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lpg@3 {
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qcom,lpg-sdam-base = <0x64>;
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qcom,lpg-chan-id = <3>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <15>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-pattern-repeat;
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};
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};
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- |
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pm8350c_pwm_1: pwms@e800 {
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compatible = "qcom,pwm-lpg";
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reg = <0xe800>;
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reg-names = "lpg-base";
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#pwm-cells = <2>;
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qcom,num-lpg-channels = <3>;
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nvmem = <&pmk8350_sdam_21 &pmk8350_sdam_22>;
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nvmem-names = "lpg_chan_sdam", "lut_sdam";
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qcom,lut-sdam-base = <0x45>;
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qcom,lut-patterns = <0 10 20 30 40 50 60 70 80 90 100
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90 80 70 60 50 40 30 20 10 0>;
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lpg@1 {
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qcom,lpg-sdam-base = <0x48>;
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qcom,lpg-chan-id = <1>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <19>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-pattern-repeat;
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};
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lpg@2 {
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qcom,lpg-sdam-base = <0x56>;
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qcom,lpg-chan-id = <2>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <19>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-pattern-repeat;
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};
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lpg@3 {
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qcom,lpg-sdam-base = <0x64>;
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qcom,lpg-chan-id = <3>;
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qcom,ramp-step-ms = <200>;
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qcom,ramp-low-index = <0>;
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qcom,ramp-high-index = <19>;
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qcom,ramp-pause-hi-count = <10>;
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qcom,ramp-pause-lo-count = <10>;
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qcom,ramp-pattern-repeat;
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};
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};
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...
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