bindings/leds/leds-bcm6328.yaml

1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-bcm6328.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Álvaro Fernández Rojas <noltari@gmail.com>
16   controller), which can either be controlled by software (exporting the 74x164
17   as spi-gpio. See
18   Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml), or by hardware
20   Some of these Serial LEDs are hardware controlled (e.g. ethernet LEDs) and
21   exporting the 74x164 as spi-gpio prevents those LEDs to be hardware
22   controlled, so the only chance to keep them working is by using this driver.
25   should be controlled by a hardware signal instead of the MODE register value,
29   explained later in brcm,link-signal-sources). Even if a LED is hardware
30   controlled you are still able to make it blink or light it up if it isn't,
32   reason, hardware controlled LEDs aren't registered as LED class devices.
34   Each LED is represented as a sub-node of the brcm,bcm6328-leds device.
38     const: brcm,bcm6328-leds
43   brcm,serial-leds:
47   brcm,serial-mux:
51   brcm,serial-clk-low:
55   brcm,serial-dat-low:
59   brcm,serial-shift-inv:
63   "#address-cells":
66   "#size-cells":
70   "@[a-f0-9]+$":
78           - maximum: 23
81       active-low:
85       brcm,hardware-controlled:
87         description: Makes this LED hardware controlled.
89       brcm,link-signal-sources:
90         $ref: /schemas/types.yaml#/definitions/uint32-array
100       brcm,activity-signal-sources:
101         $ref: /schemas/types.yaml#/definitions/uint32-array
112       - reg
117   - reg
118   - "#address-cells"
119   - "#size-cells"
124   - |
126     led-controller@10000800 {
127         compatible = "brcm,bcm6328-leds";
128         #address-cells = <1>;
129         #size-cells = <0>;
134             active-low;
140             active-low;
146             active-low;
148             default-state = "on";
153             brcm,hardware-controlled;
158             brcm,hardware-controlled;
163             brcm,hardware-controlled;
168             brcm,hardware-controlled;
171   - |
173     led-controller@10001900 {
174         compatible = "brcm,bcm6328-leds";
175         #address-cells = <1>;
176         #size-cells = <0>;
178         brcm,serial-leds;
179         brcm,serial-dat-low;
180         brcm,serial-shift-inv;
184             brcm,hardware-controlled;
185             brcm,link-signal-sources = <0>;
190             brcm,hardware-controlled;
191             brcm,link-signal-sources = <1>;
196             active-low;
202             active-low;
208             active-low;
214             active-low;
220             active-low;
226             brcm,hardware-controlled;
231             brcm,hardware-controlled;
236             brcm,hardware-controlled;
241             brcm,hardware-controlled;
246             brcm,hardware-controlled;
251             brcm,hardware-controlled;
256             brcm,hardware-controlled;
261             active-low;
263             default-state = "on";
266   - |
268     led-controller@10001900 {
269         compatible = "brcm,bcm6328-leds";
270         #address-cells = <1>;
271         #size-cells = <0>;
276             brcm,hardware-controlled;
277             brcm,link-signal-sources = <0>;
278             brcm,activity-signal-sources = <0>;
284             brcm,hardware-controlled;
285             brcm,activity-signal-sources = <1>;
291             brcm,hardware-controlled;
292             brcm,link-signal-sources = <4>;
298             brcm,hardware-controlled;
299             brcm,link-signal-sources = <5>;
305             brcm,hardware-controlled;
306             brcm,link-signal-sources = <6>;
312             brcm,hardware-controlled;
313             brcm,link-signal-sources = <7>;
319             active-low;
321             default-state = "on";
324   - |
326     led-controller@10001900 {
327         compatible = "brcm,bcm6328-leds";
328         #address-cells = <1>;
329         #size-cells = <0>;
334             brcm,hardware-controlled;
335             brcm,link-signal-sources = <0 1>;
336             brcm,activity-signal-sources = <0 1>;
342             brcm,hardware-controlled;
343             brcm,link-signal-sources = <4 5 6 7>;
349             active-low;
351             default-state = "on";
354   - |
356     led-controller@10001900 {
357         compatible = "brcm,bcm6328-leds";
358         #address-cells = <1>;
359         #size-cells = <0>;
364             brcm,hardware-controlled;
365             brcm,link-signal-sources = <0>;
366             brcm,activity-signal-sources = <0 1>;
372             brcm,hardware-controlled;
373             brcm,link-signal-sources = <7>;
379             brcm,hardware-controlled;
380             brcm,link-signal-sources = <6>;
386             brcm,hardware-controlled;
387             brcm,link-signal-sources = <5>;
393             brcm,hardware-controlled;
394             brcm,link-signal-sources = <4>;
400             active-low;
402             default-state = "on";