[PATCH v5 1/5] dt-bindings: power: Extend battery chemistry with capacitor

[PATCH v5 1/5] dt-bindings: power: Extend battery chemistry with capacitor

[Mike Looijmans]

Another technology to store energy is a (super)capacitor.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---

(no changes since v1)

 Documentation/devicetree/bindings/power/supply/battery.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/power/supply/battery.yaml b/Documentation/devicetree/bindings/power/supply/battery.yaml
index 491488e7b970..a22c97dfad88 100644
--- a/Documentation/devicetree/bindings/power/supply/battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/battery.yaml
@@ -44,6 +44,7 @@ properties:
       - const: lithium-ion-polymer
       - const: lithium-ion-iron-phosphate
       - const: lithium-ion-manganese-oxide
+      - const: capacitor
 
   over-voltage-threshold-microvolt:
     description: battery over-voltage limit
-- 
2.34.1


Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands

T: +31 (0) 499 33 69 69
E: mike.looijmans@topic.nl
W: www.topic.nl

Please consider the environment before printing this e-mail

[PATCH v5 4/5] dt-bindings: power: supply: ltc3350-charger: Add bindings

[Mike Looijmans]

The LTC3350 is a backup power controller that can charge and monitor
a series stack of one to four supercapacitors.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

(no changes since v3)

Changes in v3:
Fix $id after rename to lltc,ltc3350.yaml

Changes in v2:
Rename to lltc,ltc3350.yaml
Fix spaces and indentation

 .../bindings/power/supply/lltc,ltc3350.yaml   | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/lltc,ltc3350.yaml

diff --git a/Documentation/devicetree/bindings/power/supply/lltc,ltc3350.yaml b/Documentation/devicetree/bindings/power/supply/lltc,ltc3350.yaml
new file mode 100644
index 000000000000..dca7fe0f0d8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/lltc,ltc3350.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2024 Topic Embedded Products
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/lltc,ltc3350.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology (Analog Devices) LTC3350 Supercap Charger
+
+maintainers:
+  - Mike Looijmans <mike.looijmans@topic.nl>
+
+description: |
+  The LTC3350 is a High Current Supercapacitor Backup Controller and System
+  Monitor.
+  Specifications about the charger can be found at:
+    https://www.analog.com/en/products/ltc3350.html
+
+properties:
+  compatible:
+    enum:
+      - lltc,ltc3350
+
+  reg:
+    maxItems: 1
+
+  lltc,rsnsc-micro-ohms:
+    description: Capacitor charger sense resistor in microohm.
+    minimum: 1000
+
+  lltc,rsnsi-micro-ohms:
+    description: Input current sense resistor in microohm.
+    minimum: 1000
+
+required:
+  - compatible
+  - reg
+  - lltc,rsnsc-micro-ohms
+  - lltc,rsnsi-micro-ohms
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      charger: battery-charger@9 {
+        compatible = "lltc,ltc3350";
+        reg = <0x9>;
+        lltc,rsnsc-micro-ohms = <10000>;
+        lltc,rsnsi-micro-ohms = <10000>;
+      };
+    };
-- 
2.34.1


Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands

T: +31 (0) 499 33 69 69
E: mike.looijmans@topic.nl
W: www.topic.nl

Please consider the environment before printing this e-mail

Re: [PATCH v5 1/5] dt-bindings: power: Extend battery chemistry with capacitor

[Krzysztof Kozlowski]

On 16/04/2024 14:18, Mike Looijmans wrote:
> Another technology to store energy is a (super)capacitor.
> 
> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
> ---
> 
> (no changes since v1)

not much improved, although maybe my response came a bit too late.
Anyway, please implement feedback from previous version.

Best regards,
Krzysztof