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authorSascha Hauer <s.hauer@pengutronix.de>2015-07-08 14:44:21 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2015-07-08 14:44:21 +0200
commit87360e3dd42bb627a9f2611f961728c0789e1c21 (patch)
treeafefc88c862d9feafb0cdb075badeb8d32d8efd2 /dts/Bindings/leds/leds-bcm6358.txt
parent80936d6aaeea1b10ce4eb81c54eece2f55f8e209 (diff)
downloadbarebox-87360e3dd42bb627a9f2611f961728c0789e1c21.tar.gz
barebox-87360e3dd42bb627a9f2611f961728c0789e1c21.tar.xz
dts: update to v4.2-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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+LEDs connected to Broadcom BCM6358 controller
+
+This controller is present on BCM6358 and BCM6368.
+In these SoCs there are Serial LEDs (LEDs connected to a 74x164 controller),
+which can either be controlled by software (exporting the 74x164 as spi-gpio.
+See Documentation/devicetree/bindings/gpio/gpio-74x164.txt), or
+by hardware using this driver.
+
+Required properties:
+ - compatible : should be "brcm,bcm6358-leds".
+ - #address-cells : must be 1.
+ - #size-cells : must be 0.
+ - reg : BCM6358 LED controller address and size.
+
+Optional properties:
+ - brcm,clk-div : SCK signal divider. Possible values are 1, 2, 4 and 8.
+ Default : 1
+ - brcm,clk-dat-low : Boolean, makes clock and data signals active low.
+ Default : false
+
+Each LED is represented as a sub-node of the brcm,bcm6358-leds device.
+
+LED sub-node required properties:
+ - reg : LED pin number (only LEDs 0 to 31 are valid).
+
+LED sub-node optional properties:
+ - label : see Documentation/devicetree/bindings/leds/common.txt
+ - active-low : Boolean, makes LED active low.
+ Default : false
+ - default-state : see
+ Documentation/devicetree/bindings/leds/leds-gpio.txt
+ - linux,default-trigger : see
+ Documentation/devicetree/bindings/leds/common.txt
+
+Examples:
+Scenario 1 : BCM6358
+ leds0: led-controller@fffe00d0 {
+ compatible = "brcm,bcm6358-leds";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xfffe00d0 0x8>;
+
+ alarm_white {
+ reg = <0>;
+ active-low;
+ label = "white:alarm";
+ };
+ tv_white {
+ reg = <2>;
+ active-low;
+ label = "white:tv";
+ };
+ tel_white {
+ reg = <3>;
+ active-low;
+ label = "white:tel";
+ };
+ adsl_white {
+ reg = <4>;
+ active-low;
+ label = "white:adsl";
+ };
+ };
+
+Scenario 2 : BCM6368
+ leds0: led-controller@100000d0 {
+ compatible = "brcm,bcm6358-leds";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x100000d0 0x8>;
+ brcm,pol-low;
+ brcm,clk-div = <4>;
+
+ power_red {
+ reg = <0>;
+ active-low;
+ label = "red:power";
+ };
+ power_green {
+ reg = <1>;
+ active-low;
+ label = "green:power";
+ default-state = "on";
+ };
+ power_blue {
+ reg = <2>;
+ label = "blue:power";
+ };
+ broadband_red {
+ reg = <3>;
+ active-low;
+ label = "red:broadband";
+ };
+ broadband_green {
+ reg = <4>;
+ label = "green:broadband";
+ };
+ broadband_blue {
+ reg = <5>;
+ active-low;
+ label = "blue:broadband";
+ };
+ wireless_red {
+ reg = <6>;
+ active-low;
+ label = "red:wireless";
+ };
+ wireless_green {
+ reg = <7>;
+ active-low;
+ label = "green:wireless";
+ };
+ wireless_blue {
+ reg = <8>;
+ label = "blue:wireless";
+ };
+ phone_red {
+ reg = <9>;
+ active-low;
+ label = "red:phone";
+ };
+ phone_green {
+ reg = <10>;
+ active-low;
+ label = "green:phone";
+ };
+ phone_blue {
+ reg = <11>;
+ label = "blue:phone";
+ };
+ upgrading_red {
+ reg = <12>;
+ active-low;
+ label = "red:upgrading";
+ };
+ upgrading_green {
+ reg = <13>;
+ active-low;
+ label = "green:upgrading";
+ };
+ upgrading_blue {
+ reg = <14>;
+ label = "blue:upgrading";
+ };
+ };