* [PATCH v8 2/2] dt-bindings: leds: add QCOM flash LED controller
[not found] <20230303095023.538917-1-quic_fenglinw@quicinc.com>
@ 2023-03-03 9:50 ` Fenglin Wu
2023-03-15 17:10 ` Lee Jones
0 siblings, 1 reply; 2+ messages in thread
From: Fenglin Wu @ 2023-03-03 9:50 UTC (permalink / raw)
To: linux-arm-msm, linux-kernel, lee, pavel, krzysztof.kozlowski,
Andy Gross, Bjorn Andersson, Konrad Dybcio, Rob Herring,
Krzysztof Kozlowski, Fenglin Wu, linux-leds, devicetree
Cc: quic_collinsd, quic_subbaram
Add binding document for flash LED module inside Qualcomm Technologies,
Inc. PMICs.
Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
.../bindings/leds/qcom,spmi-flash-led.yaml | 116 ++++++++++++++++++
1 file changed, 116 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/qcom,spmi-flash-led.yaml
diff --git a/Documentation/devicetree/bindings/leds/qcom,spmi-flash-led.yaml b/Documentation/devicetree/bindings/leds/qcom,spmi-flash-led.yaml
new file mode 100644
index 000000000000..1b273aecaaec
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/qcom,spmi-flash-led.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/qcom,spmi-flash-led.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Flash LED device inside Qualcomm Technologies, Inc. PMICs
+
+maintainers:
+ - Fenglin Wu <quic_fenglinw@quicinc.com>
+
+description: |
+ Flash LED controller is present inside some Qualcomm Technologies, Inc. PMICs.
+ The flash LED module can have different number of LED channels supported
+ e.g. 3 or 4. There are some different registers between them but they can
+ both support maximum current up to 1.5 A per channel and they can also support
+ ganging 2 channels together to supply maximum current up to 2 A. The current
+ will be split symmetrically on each channel and they will be enabled and
+ disabled at the same time.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,pm8150c-flash-led
+ - qcom,pm8150l-flash-led
+ - qcom,pm8350c-flash-led
+ - const: qcom,spmi-flash-led
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ "^led-[0-3]$":
+ type: object
+ $ref: common.yaml#
+ unevaluatedProperties: false
+ description:
+ Represents the physical LED components which are connected to the
+ flash LED channels' output.
+
+ properties:
+ led-sources:
+ description:
+ The HW indices of the flash LED channels that connect to the
+ physical LED
+ allOf:
+ - minItems: 1
+ maxItems: 2
+ items:
+ enum: [1, 2, 3, 4]
+
+ led-max-microamp:
+ anyOf:
+ - minimum: 5000
+ maximum: 500000
+ multipleOf: 5000
+ - minimum: 10000
+ maximum: 1000000
+ multipleOf: 10000
+
+ flash-max-microamp:
+ anyOf:
+ - minimum: 12500
+ maximum: 1500000
+ multipleOf: 12500
+ - minimum: 25000
+ maximum: 2000000
+ multipleOf: 25000
+
+ flash-max-timeout-us:
+ minimum: 10000
+ maximum: 1280000
+ multipleOf: 10000
+
+ required:
+ - led-sources
+ - led-max-microamp
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+ spmi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ led-controller@ee00 {
+ compatible = "qcom,pm8350c-flash-led", "qcom,spmi-flash-led";
+ reg = <0xee00>;
+
+ led-0 {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ led-sources = <1>, <4>;
+ led-max-microamp = <300000>;
+ flash-max-microamp = <2000000>;
+ flash-max-timeout-us = <1280000>;
+ function-enumerator = <0>;
+ };
+
+ led-1 {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_YELLOW>;
+ led-sources = <2>, <3>;
+ led-max-microamp = <300000>;
+ flash-max-microamp = <2000000>;
+ flash-max-timeout-us = <1280000>;
+ function-enumerator = <1>;
+ };
+ };
+ };
--
2.25.1
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