From: Jisheng Zhang <jszhang@kernel.org>
To: Saravanan Sekar <sravanhome@gmail.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH 2/3] regulator: dt-bindings: mp886x: support mp8864
Date: Tue, 1 Sep 2026 12:31:22 +0800 [thread overview]
Message-ID: <20260901043123.5401-3-jszhang@kernel.org> (raw)
In-Reply-To: <20260901043123.5401-1-jszhang@kernel.org>
The MP8864 is a 4 A, 21 V synchronous step-down converter. Its
register layout and voltage transition handling are compatible with the
MP8867, but its selectable switching frequencies are 600 kHz, 850 kHz,
1.1 MHz and 1.6 MHz.
Add the compatible and chip-specific switching-frequency table.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Assisted-by: Codex:gpt-5
---
.../bindings/regulator/mps,mp886x.yaml | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/regulator/mps,mp886x.yaml b/Documentation/devicetree/bindings/regulator/mps,mp886x.yaml
index 374a4f6b1e23..6cf7c1c3c0c3 100644
--- a/Documentation/devicetree/bindings/regulator/mps,mp886x.yaml
+++ b/Documentation/devicetree/bindings/regulator/mps,mp886x.yaml
@@ -4,17 +4,30 @@
$id: http://devicetree.org/schemas/regulator/mps,mp886x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Monolithic Power Systems MP8867/MP8869 voltage regulator
+title: Monolithic Power Systems MP8864/MP8867/MP8869 voltage regulator
maintainers:
- Jisheng Zhang <jszhang@kernel.org>
allOf:
- $ref: regulator.yaml#
+ - if:
+ properties:
+ compatible:
+ const: mps,mp8864
+ then:
+ properties:
+ mps,switch-frequency-hz:
+ enum: [600000, 850000, 1100000, 1600000]
+ else:
+ properties:
+ mps,switch-frequency-hz:
+ enum: [500000, 750000, 1000000, 1250000, 1500000]
properties:
compatible:
enum:
+ - mps,mp8864
- mps,mp8867
- mps,mp8869
@@ -33,7 +46,6 @@ properties:
mps,switch-frequency-hz:
description: The valid switch frequency in Hertz.
- enum: [500000, 750000, 1000000, 1250000, 1500000]
required:
- compatible
--
2.51.0
next prev parent reply other threads:[~2026-09-01 4:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 4:31 [PATCH 0/3] regulator: mp886x: add MP8864 support Jisheng Zhang
2026-09-01 4:31 ` [PATCH 1/3] regulator: mp886x: fix vsel_mask Jisheng Zhang
2026-09-01 4:31 ` Jisheng Zhang [this message]
2026-09-01 17:42 ` [PATCH 2/3] regulator: dt-bindings: mp886x: support mp8864 Conor Dooley
2026-09-01 4:31 ` [PATCH 3/3] regulator: mp886x: add MP8864 support Jisheng Zhang
2026-09-04 18:13 ` [PATCH 0/3] " Mark Brown
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