From 06f502f57d0d7728f9fa0f157ec5e4111ddb98f6 Mon Sep 17 00:00:00 2001 From: Ben Whitten Date: Sun, 10 Dec 2017 21:17:55 +0000 Subject: leds: trigger: Introduce a NETDEV trigger This commit introduces a NETDEV trigger for named device activity. Available triggers are link, rx, and tx. Signed-off-by: Ben Whitten Acked-by: Pavel Machek Signed-off-by: Jacek Anaszewski --- .../ABI/testing/sysfs-class-led-trigger-netdev | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-led-trigger-netdev (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-netdev b/Documentation/ABI/testing/sysfs-class-led-trigger-netdev new file mode 100644 index 000000000000..451af6d6768c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-trigger-netdev @@ -0,0 +1,45 @@ +What: /sys/class/leds//device_name +Date: Dec 2017 +KernelVersion: 4.16 +Contact: linux-leds@vger.kernel.org +Description: + Specifies the network device name to monitor. + +What: /sys/class/leds//interval +Date: Dec 2017 +KernelVersion: 4.16 +Contact: linux-leds@vger.kernel.org +Description: + Specifies the duration of the LED blink in milliseconds. + Defaults to 50 ms. + +What: /sys/class/leds//link +Date: Dec 2017 +KernelVersion: 4.16 +Contact: linux-leds@vger.kernel.org +Description: + Signal the link state of the named network device. + If set to 0 (default), the LED's normal state is off. + If set to 1, the LED's normal state reflects the link state + of the named network device. + Setting this value also immediately changes the LED state. + +What: /sys/class/leds//tx +Date: Dec 2017 +KernelVersion: 4.16 +Contact: linux-leds@vger.kernel.org +Description: + Signal transmission of data on the named network device. + If set to 0 (default), the LED will not blink on transmission. + If set to 1, the LED will blink for the milliseconds specified + in interval to signal transmission. + +What: /sys/class/leds//rx +Date: Dec 2017 +KernelVersion: 4.16 +Contact: linux-leds@vger.kernel.org +Description: + Signal reception of data on the named network device. + If set to 0 (default), the LED will not blink on reception. + If set to 1, the LED will blink for the milliseconds specified + in interval to signal reception. -- cgit v1.2.3 From 1d9aa24b65c0084586c0f2fbabb4874754c7fbe5 Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Tue, 12 Dec 2017 12:15:49 -0600 Subject: dt: bindings: lm3692x: Add bindings for lm3692x LED driver This adds the devicetree bindings for the LM3692x I2C LED string driver. Acked-by: Pavel Machek Signed-off-by: Dan Murphy Signed-off-by: Jacek Anaszewski --- .../devicetree/bindings/leds/leds-lm3692x.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3692x.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/leds/leds-lm3692x.txt b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt new file mode 100644 index 000000000000..6c9074f84a51 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt @@ -0,0 +1,49 @@ +* Texas Instruments - LM3692x Highly Efficient White LED Driver + +The LM3692x is an ultra-compact, highly efficient, +white-LED driver designed for LCD display backlighting. + +The main difference between the LM36922 and LM36923 is the number of +LED strings it supports. The LM36922 supports two strings while the LM36923 +supports three strings. + +Required properties: + - compatible: + "ti,lm36922" + "ti,lm36923" + - reg : I2C slave address + - #address-cells : 1 + - #size-cells : 0 + +Optional properties: + - enable-gpios : gpio pin to enable/disable the device. + - vled-supply : LED supply + +Required child properties: + - reg : 0 + +Optional child properties: + - label : see Documentation/devicetree/bindings/leds/common.txt + - linux,default-trigger : + see Documentation/devicetree/bindings/leds/common.txt + +Example: + +led-controller@36 { + compatible = "ti,lm3692x"; + reg = <0x36>; + #address-cells = <1>; + #size-cells = <0>; + + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + vled-supply = <&vbatt>; + + led@0 { + reg = <0>; + label = "white:backlight_cluster"; + linux,default-trigger = "backlight"; + }; +} + +For more product information please see the link below: +http://www.ti.com/lit/ds/snvsa29/snvsa29.pdf -- cgit v1.2.3 From 033336781bcc454e01e8a2e92a78983d467a1059 Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Mon, 18 Dec 2017 14:23:02 -0600 Subject: dt: bindings: lp8860: Update bindings for lp8860 Update the lp8860 bindings to fix various issues found. Rename enable-gpio to enable-gpios, update the node name to the device name and indent the node example. Signed-off-by: Dan Murphy Reviewed-by: Rob Herring Signed-off-by: Jacek Anaszewski --- Documentation/devicetree/bindings/leds/leds-lp8860.txt | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/leds/leds-lp8860.txt b/Documentation/devicetree/bindings/leds/leds-lp8860.txt index aad38dd94d4b..b9d09acbaa73 100644 --- a/Documentation/devicetree/bindings/leds/leds-lp8860.txt +++ b/Documentation/devicetree/bindings/leds/leds-lp8860.txt @@ -6,22 +6,22 @@ current sinks that can be controlled by a PWM input signal, a SPI/I2C master, or both. Required properties: - - compatible: + - compatible : "ti,lp8860" - - reg - I2C slave address - - label - Used for naming LEDs + - reg : I2C slave address + - label : Used for naming LEDs Optional properties: - - enable-gpio - gpio pin to enable/disable the device. - - supply - "vled" - LED supply + - enable-gpios : gpio pin to enable (active high)/disable the device. + - vled-supply : LED supply Example: -leds: leds@6 { +led-controller@2d { compatible = "ti,lp8860"; reg = <0x2d>; label = "display_cluster"; - enable-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>; + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; vled-supply = <&vbatt>; } -- cgit v1.2.3 From 915236838988a927e405058a86b7857a984d33d4 Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Mon, 18 Dec 2017 14:23:03 -0600 Subject: dt: bindings: lp8860: Update DT label binding Update the lp8860 label binding to the LED standard as documented in Documentation/devicetree/bindings/leds/common.txt Signed-off-by: Dan Murphy Reviewed-by: Rob Herring Signed-off-by: Jacek Anaszewski --- Documentation/devicetree/bindings/leds/leds-lp8860.txt | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/leds/leds-lp8860.txt b/Documentation/devicetree/bindings/leds/leds-lp8860.txt index b9d09acbaa73..77ddd22c20dc 100644 --- a/Documentation/devicetree/bindings/leds/leds-lp8860.txt +++ b/Documentation/devicetree/bindings/leds/leds-lp8860.txt @@ -9,20 +9,33 @@ Required properties: - compatible : "ti,lp8860" - reg : I2C slave address - - label : Used for naming LEDs + - #address-cells : 1 + - #size-cells : 0 Optional properties: - enable-gpios : gpio pin to enable (active high)/disable the device. - vled-supply : LED supply +Required child properties: + - reg : 0 + +Optional child properties: + - label : see Documentation/devicetree/bindings/leds/common.txt + Example: led-controller@2d { compatible = "ti,lp8860"; + #address-cells = <1>; + #size-cells = <0>; reg = <0x2d>; - label = "display_cluster"; enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; vled-supply = <&vbatt>; + + led@0 { + reg = <0>; + label = "white:backlight"; + }; } For more product information please see the link below: -- cgit v1.2.3 From 3829a7e360edff8c19ddfcdd09ef3ab7275fc129 Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Mon, 18 Dec 2017 14:23:05 -0600 Subject: dt: bindings: lp8860: Add trigger binding to the lp8860 Add a default trigger optional node to the child node. This will allow the driver to set the trigger for a backlight. Signed-off-by: Dan Murphy Reviewed-by: Rob Herring Signed-off-by: Jacek Anaszewski --- Documentation/devicetree/bindings/leds/leds-lp8860.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/leds/leds-lp8860.txt b/Documentation/devicetree/bindings/leds/leds-lp8860.txt index 77ddd22c20dc..5f0e892ad759 100644 --- a/Documentation/devicetree/bindings/leds/leds-lp8860.txt +++ b/Documentation/devicetree/bindings/leds/leds-lp8860.txt @@ -21,6 +21,8 @@ Required child properties: Optional child properties: - label : see Documentation/devicetree/bindings/leds/common.txt + - linux,default-trigger : + see Documentation/devicetree/bindings/leds/common.txt Example: @@ -35,6 +37,7 @@ led-controller@2d { led@0 { reg = <0>; label = "white:backlight"; + linux,default-trigger = "backlight"; }; } -- cgit v1.2.3