mirror of
https://github.com/torvalds/linux.git
synced 2026-04-18 06:44:00 -04:00
40a7c5db90
Add bindings for the regulators found in the MediaTek MT6316 PMIC, usually found in board designs using the MT6991 Dimensity 9400 and on MT8196 Kompanio SoC for Chromebooks. This chip is fully controlled by SPMI and has multiple variants providing different phase configurations. Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20251027110527.21002-2-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
77 lines
2.3 KiB
YAML
77 lines
2.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/regulator/mediatek,mt6316b-regulator.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: MediaTek MT6316 BP/VP SPMI PMIC Regulators
|
|
|
|
maintainers:
|
|
- AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
|
|
|
|
description:
|
|
The MediaTek MT6316BP/VP PMICs are fully controlled by SPMI interface, both
|
|
feature four step-down DC/DC (buck) converters, and provides 2+2 Phases,
|
|
joining Buck 1+2 for the first phase, and Buck 3+4 for the second phase.
|
|
|
|
properties:
|
|
compatible:
|
|
const: mediatek,mt6316b-regulator
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
patternProperties:
|
|
"^vbuck(12|34)$":
|
|
type: object
|
|
$ref: regulator.yaml#
|
|
unevaluatedProperties: false
|
|
properties:
|
|
regulator-allowed-modes:
|
|
description: |
|
|
Allowed Buck regulator operating modes allowed. Valid values below.
|
|
0 - Normal mode with automatic power saving, reducing the switching
|
|
frequency when light load conditions are detected
|
|
1 - Forced Continuous Conduction mode (FCCM) for improved voltage
|
|
regulation accuracy with constant switching frequency but lower
|
|
regulator efficiency
|
|
2 - Forced Low Power mode for improved regulator efficiency, used
|
|
when no heavy load is expected, will shut down unnecessary IP
|
|
blocks and secondary phases to reduce quiescent current.
|
|
This mode does not limit the maximum output current but unless
|
|
only a light load is applied, there will be regulation accuracy
|
|
and efficiency losses.
|
|
minItems: 1
|
|
maxItems: 3
|
|
items:
|
|
enum: [ 0, 1, 2 ]
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/spmi/spmi.h>
|
|
|
|
spmi {
|
|
#address-cells = <2>;
|
|
#size-cells = <0>;
|
|
|
|
pmic@8 {
|
|
compatible = "mediatek,mt6316b-regulator";
|
|
reg = <0x8 SPMI_USID>;
|
|
|
|
vbuck12 {
|
|
regulator-name = "dvdd_core";
|
|
regulator-min-microvolt = <450000>;
|
|
regulator-max-microvolt = <965000>;
|
|
regulator-allowed-modes = <0 1 2>;
|
|
regulator-enable-ramp-delay = <256>;
|
|
};
|
|
};
|
|
};
|
|
...
|