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2976b17989
This patch adds device tree support for the netxbig LEDs. This also introduces a additionnal DT binding for the GPIO extension bus (netxbig-gpio-ext) used to configure the LEDs. Since this bus could also be used to control other devices, then it seems more suitable to have it in a separate DT binding. Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
92 lines
2.3 KiB
Text
92 lines
2.3 KiB
Text
Binding for the CPLD LEDs (GPIO extension bus) found on some LaCie/Seagate
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boards (Example: 2Big/5Big Network v2, 2Big NAS).
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Required properties:
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- compatible: "lacie,netxbig-leds".
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- gpio-ext: Phandle for the gpio-ext bus.
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Optional properties:
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- timers: Timer array. Each timer entry is represented by three integers:
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Mode (gpio-ext bus), delay_on and delay_off.
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Each LED is represented as a sub-node of the netxbig-leds device.
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Required sub-node properties:
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- mode-addr: Mode register address on gpio-ext bus.
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- mode-val: Mode to value mapping. Each entry is represented by two integers:
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A mode and the corresponding value on the gpio-ext bus.
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- bright-addr: Brightness register address on gpio-ext bus.
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- max-brightness: Maximum brightness value.
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Optional sub-node properties:
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- label: Name for this LED. If omitted, the label is taken from the node name.
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- linux,default-trigger: Trigger assigned to the LED.
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Example:
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netxbig-leds {
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compatible = "lacie,netxbig-leds";
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gpio-ext = &gpio_ext;
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timers = <NETXBIG_LED_TIMER1 500 500
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NETXBIG_LED_TIMER2 500 1000>;
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blue-power {
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label = "netxbig:blue:power";
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mode-addr = <0>;
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mode-val = <NETXBIG_LED_OFF 0
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NETXBIG_LED_ON 1
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NETXBIG_LED_TIMER1 3
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NETXBIG_LED_TIMER2 7>;
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bright-addr = <1>;
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max-brightness = <7>;
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};
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red-power {
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label = "netxbig:red:power";
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mode-addr = <0>;
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mode-val = <NETXBIG_LED_OFF 0
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NETXBIG_LED_ON 2
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NETXBIG_LED_TIMER1 4>;
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bright-addr = <1>;
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max-brightness = <7>;
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};
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blue-sata0 {
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label = "netxbig:blue:sata0";
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mode-addr = <3>;
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mode-val = <NETXBIG_LED_OFF 0
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NETXBIG_LED_ON 7
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NETXBIG_LED_SATA 1
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NETXBIG_LED_TIMER1 3>;
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bright-addr = <2>;
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max-brightness = <7>;
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};
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red-sata0 {
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label = "netxbig:red:sata0";
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mode-addr = <3>;
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mode-val = <NETXBIG_LED_OFF 0
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NETXBIG_LED_ON 2
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NETXBIG_LED_TIMER1 4>;
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bright-addr = <2>;
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max-brightness = <7>;
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};
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blue-sata1 {
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label = "netxbig:blue:sata1";
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mode-addr = <4>;
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mode-val = <NETXBIG_LED_OFF 0
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NETXBIG_LED_ON 7
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NETXBIG_LED_SATA 1
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NETXBIG_LED_TIMER1 3>;
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bright-addr = <2>;
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max-brightness = <7>;
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};
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red-sata1 {
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label = "netxbig:red:sata1";
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mode-addr = <4>;
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mode-val = <NETXBIG_LED_OFF 0
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NETXBIG_LED_ON 2
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NETXBIG_LED_TIMER1 4>;
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bright-addr = <2>;
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max-brightness = <7>;
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};
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};
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