* [PATCH 1/1] regulator: dt-bindings: Convert ltc3589.txt to yaml format
@ 2026-07-07 21:16 Frank.Li
2026-07-12 15:28 ` Krzysztof Kozlowski
0 siblings, 1 reply; 2+ messages in thread
From: Frank.Li @ 2026-07-07 21:16 UTC (permalink / raw)
To: Liam Girdwood, Mark Brown, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Frank Li,
open list:VOLTAGE AND CURRENT REGULATOR FRAMEWORK,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
Cc: imx, Frank Li
From: Frank Li <Frank.Li@nxp.com>
Convert ltc3589.txt to yaml format.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
.../bindings/regulator/lltc,ltc3589.yaml | 143 ++++++++++++++++++
.../devicetree/bindings/regulator/ltc3589.txt | 99 ------------
2 files changed, 143 insertions(+), 99 deletions(-)
create mode 100644 Documentation/devicetree/bindings/regulator/lltc,ltc3589.yaml
delete mode 100644 Documentation/devicetree/bindings/regulator/ltc3589.txt
diff --git a/Documentation/devicetree/bindings/regulator/lltc,ltc3589.yaml b/Documentation/devicetree/bindings/regulator/lltc,ltc3589.yaml
new file mode 100644
index 0000000000000..3bf44fbe321bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/lltc,ltc3589.yaml
@@ -0,0 +1,143 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/lltc,ltc3589.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology LTC3589 PMIC
+
+maintainers:
+ - Frank Li <Frank.li@kernel.org>
+
+description:
+ Linear Technology LTC3589, LTC3589-1 and LTC3589-2 are PMICs
+ containing three buck regulators, one boost regulator and four
+ LDO regulators.
+
+properties:
+ compatible:
+ enum:
+ - lltc,ltc3589
+ - lltc,ltc3589-1
+ - lltc,ltc3589-2
+
+ reg:
+ maxItems: 1
+
+ regulators:
+ type: object
+ additionalProperties: false
+
+ patternProperties:
+ "^(sw1|sw2|sw3|bb-out|ldo1|ldo2)$":
+ type: object
+ unevaluatedProperties: false
+ $ref: regulator.yaml#
+
+ properties:
+ lltc,fb-voltage-divider:
+ description:
+ Feedback voltage divider resistor values (R1, R2) in ohms.
+ Regulators sw1, sw2, sw3, and ldo2 can regulate the feedback
+ reference from 0.3625 V to 0.75 V in 12.5 mV steps. The output
+ voltage thus ranges between 0.3625 * (1 + R1/R2) V and
+ 0.75 * (1 + R1/R2) V. Regulators bb-out and ldo1 have a fixed
+ 0.8 V reference and thus output 0.8 * (1 + R1/R2) V. The ldo3
+ regulator is fixed to 1.8 V on LTC3589 and to 2.8 V on
+ LTC3589-1,2. The ldo4 regulator can output between 1.8 V and
+ 3.3 V on LTC3589 and between 1.2 V and 3.2 V on LTC3589-1,2 in
+ four steps. The ldo1 standby regulator can not be disabled and
+ thus should have the regulator-always-on property set.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: R1 in ohms
+ - description: R2 in ohms.
+
+ "^(ldo3|ldo4)$":
+ type: object
+ unevaluatedProperties: false
+ $ref: regulator.yaml#
+
+required:
+ - compatible
+ - reg
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@34 {
+ compatible = "lltc,ltc3589-1";
+ reg = <0x34>;
+
+ regulators {
+ sw1 {
+ regulator-min-microvolt = <591930>;
+ regulator-max-microvolt = <1224671>;
+ lltc,fb-voltage-divider = <100000 158000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw2 {
+ regulator-min-microvolt = <704123>;
+ regulator-max-microvolt = <1456803>;
+ lltc,fb-voltage-divider = <180000 191000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3 {
+ regulator-min-microvolt = <1341250>;
+ regulator-max-microvolt = <2775000>;
+ lltc,fb-voltage-divider = <270000 100000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ bb-out {
+ regulator-min-microvolt = <3387341>;
+ regulator-max-microvolt = <3387341>;
+ lltc,fb-voltage-divider = <511000 158000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo1 {
+ regulator-min-microvolt = <1306329>;
+ regulator-max-microvolt = <1306329>;
+ lltc,fb-voltage-divider = <100000 158000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo2 {
+ regulator-min-microvolt = <704123>;
+ regulator-max-microvolt = <1456806>;
+ lltc,fb-voltage-divider = <180000 191000>;
+ regulator-ramp-delay = <7000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo3 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-boot-on;
+ };
+
+ ldo4 {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3200000>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/regulator/ltc3589.txt b/Documentation/devicetree/bindings/regulator/ltc3589.txt
deleted file mode 100644
index 8010530361465..0000000000000
--- a/Documentation/devicetree/bindings/regulator/ltc3589.txt
+++ /dev/null
@@ -1,99 +0,0 @@
-Linear Technology LTC3589, LTC3589-1, and LTC3589-2 8-output regulators
-
-Required properties:
-- compatible: "lltc,ltc3589", "lltc,ltc3589-1" or "lltc,ltc3589-2"
-- reg: I2C slave address
-
-Required child node:
-- regulators: Contains eight regulator child nodes sw1, sw2, sw3, bb-out,
- ldo1, ldo2, ldo3, and ldo4, specifying the initialization data as
- documented in Documentation/devicetree/bindings/regulator/regulator.txt.
-
-Each regulator is defined using the standard binding for regulators. The
-nodes for sw1, sw2, sw3, bb-out, ldo1, and ldo2 additionally need to specify
-the resistor values of their external feedback voltage dividers:
-
-Required properties (not on ldo3, ldo4):
-- lltc,fb-voltage-divider: An array of two integers containing the resistor
- values R1 and R2 of the feedback voltage divider in ohms.
-
-Regulators sw1, sw2, sw3, and ldo2 can regulate the feedback reference from
-0.3625 V to 0.75 V in 12.5 mV steps. The output voltage thus ranges between
-0.3625 * (1 + R1/R2) V and 0.75 * (1 + R1/R2) V. Regulators bb-out and ldo1
-have a fixed 0.8 V reference and thus output 0.8 * (1 + R1/R2) V. The ldo3
-regulator is fixed to 1.8 V on LTC3589 and to 2.8 V on LTC3589-1,2. The ldo4
-regulator can output between 1.8 V and 3.3 V on LTC3589 and between 1.2 V
-and 3.2 V on LTC3589-1,2 in four steps. The ldo1 standby regulator can not
-be disabled and thus should have the regulator-always-on property set.
-
-Example:
-
- ltc3589: pmic@34 {
- compatible = "lltc,ltc3589-1";
- reg = <0x34>;
-
- regulators {
- sw1_reg: sw1 {
- regulator-min-microvolt = <591930>;
- regulator-max-microvolt = <1224671>;
- lltc,fb-voltage-divider = <100000 158000>;
- regulator-ramp-delay = <7000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- sw2_reg: sw2 {
- regulator-min-microvolt = <704123>;
- regulator-max-microvolt = <1456803>;
- lltc,fb-voltage-divider = <180000 191000>;
- regulator-ramp-delay = <7000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- sw3_reg: sw3 {
- regulator-min-microvolt = <1341250>;
- regulator-max-microvolt = <2775000>;
- lltc,fb-voltage-divider = <270000 100000>;
- regulator-ramp-delay = <7000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- bb_out_reg: bb-out {
- regulator-min-microvolt = <3387341>;
- regulator-max-microvolt = <3387341>;
- lltc,fb-voltage-divider = <511000 158000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- ldo1_reg: ldo1 {
- regulator-min-microvolt = <1306329>;
- regulator-max-microvolt = <1306329>;
- lltc,fb-voltage-divider = <100000 158000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- ldo2_reg: ldo2 {
- regulator-min-microvolt = <704123>;
- regulator-max-microvolt = <1456806>;
- lltc,fb-voltage-divider = <180000 191000>;
- regulator-ramp-delay = <7000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- ldo3_reg: ldo3 {
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- regulator-boot-on;
- };
-
- ldo4_reg: ldo4 {
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <3200000>;
- };
- };
- };
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/1] regulator: dt-bindings: Convert ltc3589.txt to yaml format
2026-07-07 21:16 [PATCH 1/1] regulator: dt-bindings: Convert ltc3589.txt to yaml format Frank.Li
@ 2026-07-12 15:28 ` Krzysztof Kozlowski
0 siblings, 0 replies; 2+ messages in thread
From: Krzysztof Kozlowski @ 2026-07-12 15:28 UTC (permalink / raw)
To: Frank.Li, Liam Girdwood, Mark Brown, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Frank Li,
open list:VOLTAGE AND CURRENT REGULATOR FRAMEWORK,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
Cc: imx, Frank Li
On 07/07/2026 23:16, Frank.Li@oss.nxp.com wrote:
> From: Frank Li <Frank.Li@nxp.com>
>
> Convert ltc3589.txt to yaml format.
Sashiko's feedback looks reasonable and I do not see it being responded
to. Dropping from DT Patchwork.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 2+ messages in thread
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