summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/mfd/ti-lmu.txt
blob: 2296b8f24de49d2a9a7b7dc4838f3e2f42add790 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
TI LMU (Lighting Management Unit) device tree bindings

TI LMU driver supports lighting devices below.

   Name                  Child nodes
  ------      ---------------------------------
  LM3631       Backlight and regulator
  LM3632       Backlight and regulator
  LM3633       Backlight, LED and fault monitor
  LM3695       Backlight
  LM36274      Backlight and regulator

Required properties:
  - compatible: Should be one of:
                "ti,lm3631"
                "ti,lm3632"
                "ti,lm3633"
                "ti,lm3695"
		"ti,lm36274"
  - reg: I2C slave address.
         0x11 for LM3632
         0x29 for LM3631
         0x36 for LM3633
         0x63 for LM3695
         0x11 for LM36274

Optional properties:
  - enable-gpios: A GPIO specifier for hardware enable pin.
  - ramp-up-us: Current ramping from one brightness level to
		the a higher brightness level.
		Range from 2048 us - 117.44 s
  - ramp-down-us: Current ramping from one brightness level to
		  the a lower brightness level.
		  Range from 2048 us - 117.44 s
  - ti,brightness-resolution - This determines whether to use 8 bit brightness
			       mode or 11 bit brightness mode.  If this value is
			       not set the device is defaulted to the preferred
			       8bit brightness mode per 7.3.4.1 of the data
			       sheet.  This setting can either be in the parent
			       node or as part of the LED child nodes.  This
			       is determined by the part itself if the strings
			       have a common brightness register or individual
			       brightness registers.
			       The values are 255 (8bit) or 2047 (11bit).

Required node:
  - backlight: All LMU devices have backlight child nodes.
               For the properties, please refer to [1].

Optional nodes:
  - fault-monitor: Hardware fault monitoring driver for LM3633 and LM3697.
    Required properties:
      - compatible: Should be one of:
                    "ti,lm3633-fault-monitor"
  - leds: LED properties for LM3633. Please refer to [2].
	  LED properties for LM36274. Please refer to [4].
  - regulators: Regulator properties for LM3631 and LM3632.
                Please refer to [3].

[1] ../leds/backlight/ti-lmu-backlight.txt
[2] ../leds/leds-lm3633.txt
[3] ../regulator/lm363x-regulator.txt
[4] ../leds/leds-lm36274.txt

lm3631@29 {
	compatible = "ti,lm3631";
	reg = <0x29>;

	regulators {
		compatible = "ti,lm363x-regulator";

		vboost {
			regulator-name = "lcd_boost";
			regulator-min-microvolt = <4500000>;
			regulator-max-microvolt = <6350000>;
			regulator-always-on;
		};

		vcont {
			regulator-name = "lcd_vcont";
			regulator-min-microvolt = <1800000>;
			regulator-max-microvolt = <3300000>;
		};

		voref {
			regulator-name = "lcd_voref";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
		};

		vpos {
			regulator-name = "lcd_vpos";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
			regulator-boot-on;
		};

		vneg {
			regulator-name = "lcd_vneg";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
			regulator-boot-on;
		};
	};

	backlight {
		compatible = "ti,lm3631-backlight";

		lcd_bl {
			led-sources = <0 1>;
			ramp-up-us = <300000>;
		};
	};
};

lm3632@11 {
	compatible = "ti,lm3632";
	reg = <0x11>;

	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>; /* PC2 */

	regulators {
		compatible = "ti,lm363x-regulator";

		enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>,
			       <&pioC 1 GPIO_ACTIVE_HIGH>;

		vboost {
			regulator-name = "lcd_boost";
			regulator-min-microvolt = <4500000>;
			regulator-max-microvolt = <6400000>;
			regulator-always-on;
		};

		vpos {
			regulator-name = "lcd_vpos";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
		};

		vneg {
			regulator-name = "lcd_vneg";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6000000>;
		};
	};

	backlight {
		compatible = "ti,lm3632-backlight";

		pwms = <&pwm0 0 10000 0>; /* pwm number, period, polarity */
		pwm-names = "lmu-backlight";

		lcd {
			led-sources = <0 1>;
			pwm-period = <10000>;
		};
	};
};

lm3633@36 {
	compatible = "ti,lm3633";
	reg = <0x36>;

	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;

	backlight {
		compatible = "ti,lm3633-backlight";

		main {
			label = "main_lcd";
			led-sources = <1 2>;
			ramp-up-us = <500000>;
			ramp-down-us = <500000>;
		};

		front {
			label = "front_lcd";
			led-sources = <0>;
			ramp-up-us = <1000000>;
			ramp-down-us = <0>;
		};
	};

	leds {
		compatible = "ti,lm3633-leds";

		chan1 {
			label = "status";
			led-sources = <1>;
			led-max-microamp = <6000>;
		};

		chan345 {
			label = "rgb";
			led-sources = <3 4 5>;
			led-max-microamp = <10000>;
		};
	};

	fault-monitor {
		compatible = "ti,lm3633-fault-monitor";
	};
};

lm3695@63 {
	compatible = "ti,lm3695";
	reg = <0x63>;

	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;

	backlight {
		compatible = "ti,lm3695-backlight";

		lcd {
			label = "bl";
			led-sources = <0 1>;
		};
	};
};

lm36274@11 {
	compatible = "ti,lm36274";
	#address-cells = <1>;
	#size-cells = <0>;
	reg = <0x11>;

	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
	regulators {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "ti,lm363x-regulator";

		enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>,
			       <&pioC 1 GPIO_ACTIVE_HIGH>;

		vboost {
			regulator-name = "lcd_boost";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <7150000>;
			regulator-always-on;
		};

		vpos {
			regulator-name = "lcd_vpos";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6500000>;
		};

		vneg {
			regulator-name = "lcd_vneg";
			regulator-min-microvolt = <4000000>;
			regulator-max-microvolt = <6500000>;
		};
	};

	backlight {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "ti,lm36274-backlight";

		led@0 {
			reg = <0>;
			led-sources = <0 2>;
			label = "white:backlight_cluster";
			linux,default-trigger = "backlight";
		};
	};
};