dt-bindings: leds: Document mmc trigger
The mmc subsystem supports triggering leds on card activity, document the trigger value here. The value is a pattern in this case. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org To: linux-leds@vger.kernel.org Signed-off-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Rob Herring <robh@kernel.org>
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@ -79,24 +79,27 @@ properties:
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the LED.
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$ref: /schemas/types.yaml#/definitions/string
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enum:
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# LED will act as a back-light, controlled by the framebuffer system
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- backlight
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# LED will turn on (but for leds-gpio see "default-state" property in
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# Documentation/devicetree/bindings/leds/leds-gpio.yaml)
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- default-on
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# LED "double" flashes at a load average based rate
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- heartbeat
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# LED indicates disk activity
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- disk-activity
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# LED indicates IDE disk activity (deprecated), in new implementations
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# use "disk-activity"
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- ide-disk
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# LED flashes at a fixed, configurable rate
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- timer
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# LED alters the brightness for the specified duration with one software
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# timer (requires "led-pattern" property)
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- pattern
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oneOf:
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- enum:
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# LED will act as a back-light, controlled by the framebuffer system
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- backlight
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# LED will turn on (but for leds-gpio see "default-state" property in
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# Documentation/devicetree/bindings/leds/leds-gpio.yaml)
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- default-on
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# LED "double" flashes at a load average based rate
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- heartbeat
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# LED indicates disk activity
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- disk-activity
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# LED indicates IDE disk activity (deprecated), in new implementations
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# use "disk-activity"
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- ide-disk
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# LED flashes at a fixed, configurable rate
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- timer
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# LED alters the brightness for the specified duration with one software
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# timer (requires "led-pattern" property)
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- pattern
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# LED is triggered by SD/MMC activity
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- pattern: "^mmc[0-9]+$"
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led-pattern:
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description: |
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