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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/devicetree/bindings/leds/irled
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/leds/irled')
-rw-r--r--Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt14
-rw-r--r--Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt13
-rw-r--r--Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt29
3 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt b/Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt
new file mode 100644
index 000000000..cbe8dfd29
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/irled/gpio-ir-tx.txt
@@ -0,0 +1,14 @@
+Device tree bindings for IR LED connected through gpio pin which is used as
+remote controller transmitter.
+
+Required properties:
+ - compatible: should be "gpio-ir-tx".
+ - gpios : Should specify the IR LED GPIO, see "gpios property" in
+ Documentation/devicetree/bindings/gpio/gpio.txt. Active low LEDs
+ should be indicated using flags in the GPIO specifier.
+
+Example:
+ irled@0 {
+ compatible = "gpio-ir-tx";
+ gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt b/Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt
new file mode 100644
index 000000000..66e5672c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/irled/pwm-ir-tx.txt
@@ -0,0 +1,13 @@
+Device tree bindings for IR LED connected through pwm pin which is used as
+remote controller transmitter.
+
+Required properties:
+ - compatible: should be "pwm-ir-tx".
+ - pwms : PWM property to point to the PWM device (phandle)/port (id)
+ and to specify the period time to be used: <&phandle id period_ns>;
+
+Example:
+ irled {
+ compatible = "pwm-ir-tx";
+ pwms = <&pwm0 0 10000000>;
+ };
diff --git a/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt b/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt
new file mode 100644
index 000000000..896b6997c
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt
@@ -0,0 +1,29 @@
+Device tree bindings for IR LED connected through SPI bus which is used as
+remote controller.
+
+The IR LED switch is connected to the MOSI line of the SPI device and the data
+are delivered thourgh that.
+
+Required properties:
+ - compatible: should be "ir-spi-led".
+
+Optional properties:
+ - duty-cycle: 8 bit balue that represents the percentage of one period
+ in which the signal is active. It can be 50, 60, 70, 75, 80 or 90.
+ - led-active-low: boolean value that specifies whether the output is
+ negated with a NOT gate.
+ - power-supply: specifies the power source. It can either be a regulator
+ or a gpio which enables a regulator, i.e. a regulator-fixed as
+ described in
+ Documentation/devicetree/bindings/regulator/fixed-regulator.txt
+
+Example:
+
+ irled@0 {
+ compatible = "ir-spi-led";
+ reg = <0x0>;
+ spi-max-frequency = <5000000>;
+ power-supply = <&vdd_led>;
+ led-active-low;
+ duty-cycle = /bits/ 8 <60>;
+ };