Lines Matching +full:serial +full:- +full:leds
1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-bcm6328.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LEDs connected to Broadcom BCM6328 controller
10 - Álvaro Fernández Rojas <noltari@gmail.com>
14 In these SoCs it's possible to control LEDs both as GPIOs or by hardware.
15 However, on some devices there are Serial LEDs (LEDs connected to a 74x164
17 as spi-gpio. See
20 Some of these Serial LEDs are hardware controlled (e.g. ethernet LEDs) and
21 exporting the 74x164 as spi-gpio prevents those LEDs to be hardware
28 registers you have some limited control over rerouting the LEDs (as
29 explained later in brcm,link-signal-sources). Even if a LED is hardware
32 reason, hardware controlled LEDs aren't registered as LED class devices.
34 Each LED is represented as a sub-node of the brcm,bcm6328-leds device.
38 const: brcm,bcm6328-leds
43 brcm,serial-leds:
45 description: Enables Serial LEDs.
47 brcm,serial-mux:
49 description: Enables Serial LEDs multiplexing.
51 brcm,serial-clk-low:
55 brcm,serial-dat-low:
59 brcm,serial-shift-inv:
61 description: Inverts Serial LEDs shift direction.
63 "#address-cells":
66 "#size-cells":
70 "@[a-f0-9]+$":
78 - maximum: 23
79 description: LED pin number (only LEDs 0 to 23 are valid).
81 brcm,hardware-controlled:
85 brcm,link-signal-sources:
86 $ref: /schemas/types.yaml#/definitions/uint32-array
91 signals can get muxed into these LEDs. Only valid for LEDs 0 to 7,
92 where LED signals 0 to 3 may be muxed to LEDs 0 to 3, and signals 4 to
93 7 may be muxed to LEDs 4 to 7. A signal can be muxed to more than one
96 brcm,activity-signal-sources:
97 $ref: /schemas/types.yaml#/definitions/uint32-array
102 hardware signals can get muxed into these LEDs. Only valid for LEDs 0
103 to 7, where LED signals 0 to 3 may be muxed to LEDs 0 to 3, and
104 signals 4 to 7 may be muxed to LEDs 4 to 7. A signal can be muxed to
108 - reg
113 - reg
114 - "#address-cells"
115 - "#size-cells"
120 - |
121 /* BCM6328 with 4 EPHY LEDs */
122 led-controller@10000800 {
123 compatible = "brcm,bcm6328-leds";
124 #address-cells = <1>;
125 #size-cells = <0>;
130 active-low;
136 active-low;
142 active-low;
144 default-state = "on";
149 brcm,hardware-controlled;
154 brcm,hardware-controlled;
159 brcm,hardware-controlled;
164 brcm,hardware-controlled;
167 - |
168 /* BCM63268 with Serial/GPHY0 LEDs */
169 led-controller@10001900 {
170 compatible = "brcm,bcm6328-leds";
171 #address-cells = <1>;
172 #size-cells = <0>;
174 brcm,serial-leds;
175 brcm,serial-dat-low;
176 brcm,serial-shift-inv;
180 brcm,hardware-controlled;
181 brcm,link-signal-sources = <0>;
186 brcm,hardware-controlled;
187 brcm,link-signal-sources = <1>;
192 active-low;
198 active-low;
204 active-low;
210 active-low;
216 active-low;
222 brcm,hardware-controlled;
227 brcm,hardware-controlled;
232 brcm,hardware-controlled;
237 brcm,hardware-controlled;
242 brcm,hardware-controlled;
247 brcm,hardware-controlled;
252 brcm,hardware-controlled;
257 active-low;
259 default-state = "on";
262 - |
264 led-controller@10001900 {
265 compatible = "brcm,bcm6328-leds";
266 #address-cells = <1>;
267 #size-cells = <0>;
272 brcm,hardware-controlled;
273 brcm,link-signal-sources = <0>;
274 brcm,activity-signal-sources = <0>;
280 brcm,hardware-controlled;
281 brcm,activity-signal-sources = <1>;
287 brcm,hardware-controlled;
288 brcm,link-signal-sources = <4>;
294 brcm,hardware-controlled;
295 brcm,link-signal-sources = <5>;
301 brcm,hardware-controlled;
302 brcm,link-signal-sources = <6>;
308 brcm,hardware-controlled;
309 brcm,link-signal-sources = <7>;
315 active-low;
317 default-state = "on";
320 - |
322 led-controller@10001900 {
323 compatible = "brcm,bcm6328-leds";
324 #address-cells = <1>;
325 #size-cells = <0>;
330 brcm,hardware-controlled;
331 brcm,link-signal-sources = <0 1>;
332 brcm,activity-signal-sources = <0 1>;
338 brcm,hardware-controlled;
339 brcm,link-signal-sources = <4 5 6 7>;
345 active-low;
347 default-state = "on";
350 - |
351 /* BCM6362 with EPHY LEDs swapped */
352 led-controller@10001900 {
353 compatible = "brcm,bcm6328-leds";
354 #address-cells = <1>;
355 #size-cells = <0>;
360 brcm,hardware-controlled;
361 brcm,link-signal-sources = <0>;
362 brcm,activity-signal-sources = <0 1>;
368 brcm,hardware-controlled;
369 brcm,link-signal-sources = <7>;
375 brcm,hardware-controlled;
376 brcm,link-signal-sources = <6>;
382 brcm,hardware-controlled;
383 brcm,link-signal-sources = <5>;
389 brcm,hardware-controlled;
390 brcm,link-signal-sources = <4>;
396 active-low;
398 default-state = "on";