1 LEDs connected to Broadcom BCM6358 controller 1 LEDs connected to Broadcom BCM6358 controller
2 2
3 This controller is present on BCM6358 and BCM6 3 This controller is present on BCM6358 and BCM6368.
4 In these SoCs there are Serial LEDs (LEDs conn 4 In these SoCs there are Serial LEDs (LEDs connected to a 74x164 controller),
5 which can either be controlled by software (ex 5 which can either be controlled by software (exporting the 74x164 as spi-gpio.
6 See Documentation/devicetree/bindings/gpio/fai 6 See Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml), or
7 by hardware using this driver. 7 by hardware using this driver.
8 8
9 Required properties: 9 Required properties:
10 - compatible : should be "brcm,bcm6358-leds" 10 - compatible : should be "brcm,bcm6358-leds".
11 - #address-cells : must be 1. 11 - #address-cells : must be 1.
12 - #size-cells : must be 0. 12 - #size-cells : must be 0.
13 - reg : BCM6358 LED controller address and s 13 - reg : BCM6358 LED controller address and size.
14 14
15 Optional properties: 15 Optional properties:
16 - brcm,clk-div : SCK signal divider. Possibl 16 - brcm,clk-div : SCK signal divider. Possible values are 1, 2, 4 and 8.
17 Default : 1 17 Default : 1
18 - brcm,clk-dat-low : Boolean, makes clock an 18 - brcm,clk-dat-low : Boolean, makes clock and data signals active low.
19 Default : false 19 Default : false
20 20
21 Each LED is represented as a sub-node of the b 21 Each LED is represented as a sub-node of the brcm,bcm6358-leds device.
22 22
23 LED sub-node required properties: 23 LED sub-node required properties:
24 - reg : LED pin number (only LEDs 0 to 31 ar 24 - reg : LED pin number (only LEDs 0 to 31 are valid).
25 25
26 LED sub-node optional properties: 26 LED sub-node optional properties:
27 - label : see Documentation/devicetree/bindi 27 - label : see Documentation/devicetree/bindings/leds/common.txt
28 - default-state : see 28 - default-state : see
29 Documentation/devicetree/bindings/leds/com 29 Documentation/devicetree/bindings/leds/common.txt
30 - linux,default-trigger : see 30 - linux,default-trigger : see
31 Documentation/devicetree/bindings/leds/com 31 Documentation/devicetree/bindings/leds/common.txt
32 32
33 Examples: 33 Examples:
34 Scenario 1 : BCM6358 34 Scenario 1 : BCM6358
35 leds0: led-controller@fffe00d0 { 35 leds0: led-controller@fffe00d0 {
36 compatible = "brcm,bcm6358-led 36 compatible = "brcm,bcm6358-leds";
37 #address-cells = <1>; 37 #address-cells = <1>;
38 #size-cells = <0>; 38 #size-cells = <0>;
39 reg = <0xfffe00d0 0x8>; 39 reg = <0xfffe00d0 0x8>;
40 40
41 alarm_white { 41 alarm_white {
42 reg = <0>; 42 reg = <0>;
43 active-low; 43 active-low;
44 label = "white:alarm"; 44 label = "white:alarm";
45 }; 45 };
46 tv_white { 46 tv_white {
47 reg = <2>; 47 reg = <2>;
48 active-low; 48 active-low;
49 label = "white:tv"; 49 label = "white:tv";
50 }; 50 };
51 tel_white { 51 tel_white {
52 reg = <3>; 52 reg = <3>;
53 active-low; 53 active-low;
54 label = "white:tel"; 54 label = "white:tel";
55 }; 55 };
56 adsl_white { 56 adsl_white {
57 reg = <4>; 57 reg = <4>;
58 active-low; 58 active-low;
59 label = "white:adsl"; 59 label = "white:adsl";
60 }; 60 };
61 }; 61 };
62 62
63 Scenario 2 : BCM6368 63 Scenario 2 : BCM6368
64 leds0: led-controller@100000d0 { 64 leds0: led-controller@100000d0 {
65 compatible = "brcm,bcm6358-led 65 compatible = "brcm,bcm6358-leds";
66 #address-cells = <1>; 66 #address-cells = <1>;
67 #size-cells = <0>; 67 #size-cells = <0>;
68 reg = <0x100000d0 0x8>; 68 reg = <0x100000d0 0x8>;
69 brcm,pol-low; 69 brcm,pol-low;
70 brcm,clk-div = <4>; 70 brcm,clk-div = <4>;
71 71
72 power_red { 72 power_red {
73 reg = <0>; 73 reg = <0>;
74 active-low; 74 active-low;
75 label = "red:power"; 75 label = "red:power";
76 }; 76 };
77 power_green { 77 power_green {
78 reg = <1>; 78 reg = <1>;
79 active-low; 79 active-low;
80 label = "green:power"; 80 label = "green:power";
81 default-state = "on"; 81 default-state = "on";
82 }; 82 };
83 power_blue { 83 power_blue {
84 reg = <2>; 84 reg = <2>;
85 label = "blue:power"; 85 label = "blue:power";
86 }; 86 };
87 broadband_red { 87 broadband_red {
88 reg = <3>; 88 reg = <3>;
89 active-low; 89 active-low;
90 label = "red:broadband 90 label = "red:broadband";
91 }; 91 };
92 broadband_green { 92 broadband_green {
93 reg = <4>; 93 reg = <4>;
94 label = "green:broadba 94 label = "green:broadband";
95 }; 95 };
96 broadband_blue { 96 broadband_blue {
97 reg = <5>; 97 reg = <5>;
98 active-low; 98 active-low;
99 label = "blue:broadban 99 label = "blue:broadband";
100 }; 100 };
101 wireless_red { 101 wireless_red {
102 reg = <6>; 102 reg = <6>;
103 active-low; 103 active-low;
104 label = "red:wireless" 104 label = "red:wireless";
105 }; 105 };
106 wireless_green { 106 wireless_green {
107 reg = <7>; 107 reg = <7>;
108 active-low; 108 active-low;
109 label = "green:wireles 109 label = "green:wireless";
110 }; 110 };
111 wireless_blue { 111 wireless_blue {
112 reg = <8>; 112 reg = <8>;
113 label = "blue:wireless 113 label = "blue:wireless";
114 }; 114 };
115 phone_red { 115 phone_red {
116 reg = <9>; 116 reg = <9>;
117 active-low; 117 active-low;
118 label = "red:phone"; 118 label = "red:phone";
119 }; 119 };
120 phone_green { 120 phone_green {
121 reg = <10>; 121 reg = <10>;
122 active-low; 122 active-low;
123 label = "green:phone"; 123 label = "green:phone";
124 }; 124 };
125 phone_blue { 125 phone_blue {
126 reg = <11>; 126 reg = <11>;
127 label = "blue:phone"; 127 label = "blue:phone";
128 }; 128 };
129 upgrading_red { 129 upgrading_red {
130 reg = <12>; 130 reg = <12>;
131 active-low; 131 active-low;
132 label = "red:upgrading 132 label = "red:upgrading";
133 }; 133 };
134 upgrading_green { 134 upgrading_green {
135 reg = <13>; 135 reg = <13>;
136 active-low; 136 active-low;
137 label = "green:upgradi 137 label = "green:upgrading";
138 }; 138 };
139 upgrading_blue { 139 upgrading_blue {
140 reg = <14>; 140 reg = <14>;
141 label = "blue:upgradin 141 label = "blue:upgrading";
142 }; 142 };
143 }; 143 };
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