Update the DT binding to include the properties to use the multicolor framework for the devices that use the LP55xx framework. Signed-off-by: Dan Murphy <dmurphy@xxxxxx> CC: Tony Lindgren <tony@xxxxxxxxxxx> CC: "Benoît Cousson" <bcousson@xxxxxxxxxxxx> CC: Linus Walleij <linus.walleij@xxxxxxxxxx> CC: Shawn Guo <shawnguo@xxxxxxxxxx> CC: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> CC: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx> CC: Fabio Estevam <festevam@xxxxxxxxx> CC: NXP Linux Team <linux-imx@xxxxxxx> --- .../devicetree/bindings/leds/leds-lp55xx.txt | 149 +++++++++++++++--- 1 file changed, 124 insertions(+), 25 deletions(-) diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt index bfe2805c5534..736a2e1538be 100644 --- a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt +++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt @@ -1,6 +1,8 @@ Binding for TI/National Semiconductor LP55xx LED Drivers Required properties: +- #address-cells: 1 +- #size-cells: 0 - compatible: one of national,lp5521 national,lp5523 @@ -14,6 +16,18 @@ Required properties: Each child has own specific current settings - led-cur: Current setting at each LED channel (mA x10, 0 if LED is not connected) - max-cur: Maximun current at each LED channel. +- reg: Output channel for the LED. This is zero based channel identifier and + the data sheet is a one based channel identifier. + reg value to output to LED output number + D1 = reg value is 0 + D2 = reg value is 1 + D3 = reg value is 2 + D4 = reg value is 3 + D5 = reg value is 4 + D6 = reg value is 5 + D7 = reg value is 6 + D8 = reg value is 7 + D9 = reg value is 8 Optional properties: - enable-gpio: GPIO attached to the chip's enable pin @@ -35,23 +49,28 @@ example 1) LP5521 on channel 0. lp5521@32 { + #address-cells = <1>; + #size-cells = <0>; compatible = "national,lp5521"; reg = <0x32>; label = "lp5521_pri"; clock-mode = /bits/ 8 <2>; - chan0 { + chan@0 { + reg = <0>; led-cur = /bits/ 8 <0x2f>; max-cur = /bits/ 8 <0x5f>; linux,default-trigger = "heartbeat"; }; - chan1 { + chan@1 { + reg = <1>; led-cur = /bits/ 8 <0x2f>; max-cur = /bits/ 8 <0x5f>; }; - chan2 { + chan@2 { + reg = <2>; led-cur = /bits/ 8 <0x2f>; max-cur = /bits/ 8 <0x5f>; }; @@ -70,59 +89,70 @@ ASEL1 ASEL0 Address VEN VEN 35h lp5523@32 { + #address-cells = <1>; + #size-cells = <0>; compatible = "national,lp5523"; reg = <0x32>; clock-mode = /bits/ 8 <1>; - chan0 { + chan@0 { + reg = <0>; chan-name = "d1"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan1 { + chan@1 { + reg = <1>; chan-name = "d2"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan2 { + chan@2 { + reg = <2>; chan-name = "d3"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan3 { + chan@3 { + reg = <3>; chan-name = "d4"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan4 { + chan@4 { + reg = <4>; chan-name = "d5"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan5 { + chan@5 { + reg = <5>; chan-name = "d6"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan6 { + chan@6 { + reg = <6>; chan-name = "d7"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan7 { + chan@7 { + reg = <7>; chan-name = "d8"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan8 { + chan@8 { + reg = <8>; chan-name = "d9"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; @@ -133,29 +163,35 @@ example 3) LP5562 4 channels are defined. lp5562@30 { + #address-cells = <1>; + #size-cells = <0>; compatible = "ti,lp5562"; reg = <0x30>; clock-mode = /bits/8 <2>; - chan0 { + chan@0 { + reg = <0>; chan-name = "R"; led-cur = /bits/ 8 <0x20>; max-cur = /bits/ 8 <0x60>; }; - chan1 { + chan@1 { + reg = <1>; chan-name = "G"; led-cur = /bits/ 8 <0x20>; max-cur = /bits/ 8 <0x60>; }; - chan2 { + chan@2 { + reg = <2>; chan-name = "B"; led-cur = /bits/ 8 <0x20>; max-cur = /bits/ 8 <0x60>; }; - chan3 { + chan@3 { + reg = <3>; chan-name = "W"; led-cur = /bits/ 8 <0x20>; max-cur = /bits/ 8 <0x60>; @@ -167,62 +203,125 @@ example 4) LP8501 Others are same as LP5523. lp8501@32 { + #address-cells = <1>; + #size-cells = <0>; compatible = "ti,lp8501"; reg = <0x32>; clock-mode = /bits/ 8 <2>; pwr-sel = /bits/ 8 <3>; /* D1~9 connected to VOUT */ - chan0 { + chan@0 { + reg = <0>; chan-name = "d1"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan1 { + chan@1 { + reg = <1>; chan-name = "d2"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan2 { + chan@2 { + reg = <2>; chan-name = "d3"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan3 { + chan@3 { + reg = <3>; chan-name = "d4"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan4 { + chan@4 { + reg = <4>; chan-name = "d5"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan5 { + chan@5 { + reg = <5>; chan-name = "d6"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan6 { + chan@6 { + reg = <6>; chan-name = "d7"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan7 { + chan@7 { + reg = <7>; chan-name = "d8"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; - chan8 { + chan@8 { + reg = <8>; chan-name = "d9"; led-cur = /bits/ 8 <0x14>; max-cur = /bits/ 8 <0x20>; }; }; + +Multicolor Framework Support +In addition to the nodes and properties defined above for device support the +properties below are needed for multicolor framework support as defined in +Documentation/devicetree/bindings/leds/leds-class-multicolor.txt + +Required child properties for multicolor framework + - color : Must be LED_COLOR_ID_MULTI + - function : see Documentation/devicetree/bindings/leds/common.txt + +Required grandchildren properties + - reg : This is the LED output of the device + - color : see Documentation/devicetree/bindings/leds/common.txt + +Multicolor LED example: +lp5523: lp5523@32 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "national,lp5523"; + reg = <0x32>; + clock-mode = /bits/ 8 <0>; /* LP55XX_CLOCK_AUTO */ + + multi-led@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + color = <LED_COLOR_ID_MULTI>; + function = LED_FUNCTION_STANDBY; + linux,default-trigger = "heartbeat"; + + led@0 { + led-cur = /bits/ 8 <50>; + max-cur = /bits/ 8 <100>; + reg = <0x0>; + color = <LED_COLOR_ID_GREEN>; + }; + + led@1 { + led-cur = /bits/ 8 <50>; + max-cur = /bits/ 8 <100>; + reg = <0x1>; + color = <LED_COLOR_ID_BLUE>; + }; + + led@6 { + led-cur = /bits/ 8 <50>; + max-cur = /bits/ 8 <100>; + reg = <0x6>; + color = <LED_COLOR_ID_RED>; + }; + }; +}; -- 2.22.0.214.g8dca754b1e