Add YAML devicetree binding for SGMICRO SGM3140 charge pump used for camera flash LEDs. Signed-off-by: Luca Weiss <luca@xxxxxxxxx> --- Changes since RFC: - new patch I'm not sure about the completeness of this binding as it doesn't mention the led subnode at all. The only existing led yaml binding is leds/leds-max77650.yaml which mentions the subnode but duplicates properties from documented in leds/common.txt. .../bindings/leds/leds-sgm3140.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-sgm3140.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml new file mode 100644 index 000000000000..be9384573d02 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-sgm3140.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SGMICRO SGM3140 500mA Buck/Boost Charge Pump LED Driver + +maintainers: + - Luca Weiss <luca@xxxxxxxxx> + +description: | + The SGM3140 is a current-regulated charge pump which can regulate two current + levels for Flash and Torch modes. + + It is controlled with two GPIO pins. + + The data sheet can be found at: + http://www.sg-micro.com/uploads/soft/20190626/1561535688.pdf + +properties: + compatible: + const: sgmicro,sgm3140 + + enable-gpios: + maxItems: 1 + description: A connection to the 'EN' pin. + + flash-gpios: + maxItems: 1 + description: A connection to the 'FLASH' pin. + +required: + - compatible + - flash-gpios + - enable-gpios + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/leds/common.h> + + sgm3140 { + compatible = "sgmicro,sgm3140"; + flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ + enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */ + + sgm3140_flash: led { + function = LED_FUNCTION_FLASH; + color = <LED_COLOR_ID_WHITE>; + flash-max-timeout-us = <250000>; + }; + }; -- 2.25.1
