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| author | Luca Weiss <luca@z3ntu.xyz> | 2020-04-21 21:13:53 +0200 |
|---|---|---|
| committer | Pavel Machek <pavel@ucw.cz> | 2020-04-27 11:44:50 +0200 |
| commit | ea4407fa905aa5334a9176da21f3395bdcbe7bcd (patch) | |
| tree | c54ce6c91f61b9af7527853897396cc172859856 /Documentation/devicetree/bindings/leds | |
| parent | 03f613f0571fab238eaa8fcf2de54e4d35947fa6 (diff) | |
| download | linux-ea4407fa905aa5334a9176da21f3395bdcbe7bcd.tar.bz2 | |
dt-bindings: leds: Add binding for sgm3140
Add YAML devicetree binding for SGMICRO SGM3140 charge pump used for
camera flash LEDs.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Diffstat (limited to 'Documentation/devicetree/bindings/leds')
| -rw-r--r-- | Documentation/devicetree/bindings/leds/leds-sgm3140.yaml | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml new file mode 100644 index 000000000000..ecf7ac9ab067 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-sgm3140.yaml @@ -0,0 +1,62 @@ +# 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@z3ntu.xyz> + +description: | + The SGM3140 is a current-regulated charge pump which can regulate two current + levels for Flash and Torch modes. + + 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. + + vin-supply: + description: Regulator providing power to the 'VIN' pin. + + led: + type: object + allOf: + - $ref: common.yaml# + +required: + - compatible + - flash-gpios + - enable-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/leds/common.h> + + led-controller { + compatible = "sgmicro,sgm3140"; + flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ + enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */ + vin-supply = <®_dcdc1>; + + sgm3140_flash: led { + function = LED_FUNCTION_FLASH; + color = <LED_COLOR_ID_WHITE>; + flash-max-timeout-us = <250000>; + }; + }; |