forked from ~ljy/RK356X_SDK_RELEASE
blame | history | patch | commit | commitdiff
hc
2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/Documentation/devicetree/bindings/mfd/ti-lmu.txt
....@@ -4,30 +4,44 @@
44 
55    Name                  Child nodes
66   ------      ---------------------------------
7
-  LM3532       Backlight
87   LM3631       Backlight and regulator
98   LM3632       Backlight and regulator
109   LM3633       Backlight, LED and fault monitor
1110   LM3695       Backlight
12
-  LM3697       Backlight and fault monitor
11
+  LM36274      Backlight and regulator
1312 
1413 Required properties:
1514   - compatible: Should be one of:
16
-                "ti,lm3532"
1715                 "ti,lm3631"
1816                 "ti,lm3632"
1917                 "ti,lm3633"
2018                 "ti,lm3695"
21
-                "ti,lm3697"
19
+		"ti,lm36274"
2220   - reg: I2C slave address.
2321          0x11 for LM3632
2422          0x29 for LM3631
25
-         0x36 for LM3633, LM3697
26
-         0x38 for LM3532
23
+         0x36 for LM3633
2724          0x63 for LM3695
25
+         0x11 for LM36274
2826 
29
-Optional property:
27
+Optional properties:
3028   - enable-gpios: A GPIO specifier for hardware enable pin.
29
+  - ramp-up-us: Current ramping from one brightness level to
30
+		the a higher brightness level.
31
+		Range from 2048 us - 117.44 s
32
+  - ramp-down-us: Current ramping from one brightness level to
33
+		  the a lower brightness level.
34
+		  Range from 2048 us - 117.44 s
35
+  - ti,brightness-resolution - This determines whether to use 8 bit brightness
36
+			       mode or 11 bit brightness mode.  If this value is
37
+			       not set the device is defaulted to the preferred
38
+			       8bit brightness mode per 7.3.4.1 of the data
39
+			       sheet.  This setting can either be in the parent
40
+			       node or as part of the LED child nodes.  This
41
+			       is determined by the part itself if the strings
42
+			       have a common brightness register or individual
43
+			       brightness registers.
44
+			       The values are 255 (8bit) or 2047 (11bit).
3145 
3246 Required node:
3347   - backlight: All LMU devices have backlight child nodes.
....@@ -38,31 +52,15 @@
3852     Required properties:
3953       - compatible: Should be one of:
4054                     "ti,lm3633-fault-monitor"
41
-                    "ti,lm3697-fault-monitor"
4255   - leds: LED properties for LM3633. Please refer to [2].
56
+	  LED properties for LM36274. Please refer to [4].
4357   - regulators: Regulator properties for LM3631 and LM3632.
4458                 Please refer to [3].
4559 
4660 [1] ../leds/backlight/ti-lmu-backlight.txt
4761 [2] ../leds/leds-lm3633.txt
4862 [3] ../regulator/lm363x-regulator.txt
49
-
50
-lm3532@38 {
51
-	compatible = "ti,lm3532";
52
-	reg = <0x38>;
53
-
54
-	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
55
-
56
-	backlight {
57
-		compatible = "ti,lm3532-backlight";
58
-
59
-		lcd {
60
-			led-sources = <0 1 2>;
61
-			ramp-up-msec = <30>;
62
-			ramp-down-msec = <0>;
63
-		};
64
-	};
65
-};
63
+[4] ../leds/leds-lm36274.txt
6664 
6765 lm3631@29 {
6866 	compatible = "ti,lm3631";
....@@ -110,7 +108,7 @@
110108 
111109 		lcd_bl {
112110 			led-sources = <0 1>;
113
-			ramp-up-msec = <300>;
111
+			ramp-up-us = <300000>;
114112 		};
115113 	};
116114 };
....@@ -124,8 +122,8 @@
124122 	regulators {
125123 		compatible = "ti,lm363x-regulator";
126124 
127
-		ti,lcm-en1-gpio = <&pioC 0 GPIO_ACTIVE_HIGH>; /* PC0 */
128
-		ti,lcm-en2-gpio = <&pioC 1 GPIO_ACTIVE_HIGH>; /* PC1 */
125
+		enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>,
126
+			       <&pioC 1 GPIO_ACTIVE_HIGH>;
129127 
130128 		vboost {
131129 			regulator-name = "lcd_boost";
....@@ -172,15 +170,15 @@
172170 		main {
173171 			label = "main_lcd";
174172 			led-sources = <1 2>;
175
-			ramp-up-msec = <500>;
176
-			ramp-down-msec = <500>;
173
+			ramp-up-us = <500000>;
174
+			ramp-down-us = <500000>;
177175 		};
178176 
179177 		front {
180178 			label = "front_lcd";
181179 			led-sources = <0>;
182
-			ramp-up-msec = <1000>;
183
-			ramp-down-msec = <0>;
180
+			ramp-up-us = <1000000>;
181
+			ramp-down-us = <0>;
184182 		};
185183 	};
186184 
....@@ -221,23 +219,51 @@
221219 	};
222220 };
223221 
224
-lm3697@36 {
225
-	compatible = "ti,lm3697";
226
-	reg = <0x36>;
222
+lm36274@11 {
223
+	compatible = "ti,lm36274";
224
+	#address-cells = <1>;
225
+	#size-cells = <0>;
226
+	reg = <0x11>;
227227 
228228 	enable-gpios = <&pioC 2 GPIO_ACTIVE_HIGH>;
229
+	regulators {
230
+		#address-cells = <1>;
231
+		#size-cells = <0>;
232
+		compatible = "ti,lm363x-regulator";
229233 
230
-	backlight {
231
-		compatible = "ti,lm3697-backlight";
234
+		enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>,
235
+			       <&pioC 1 GPIO_ACTIVE_HIGH>;
232236 
233
-		lcd {
234
-			led-sources = <0 1 2>;
235
-			ramp-up-msec = <200>;
236
-			ramp-down-msec = <200>;
237
+		vboost {
238
+			regulator-name = "lcd_boost";
239
+			regulator-min-microvolt = <4000000>;
240
+			regulator-max-microvolt = <7150000>;
241
+			regulator-always-on;
242
+		};
243
+
244
+		vpos {
245
+			regulator-name = "lcd_vpos";
246
+			regulator-min-microvolt = <4000000>;
247
+			regulator-max-microvolt = <6500000>;
248
+		};
249
+
250
+		vneg {
251
+			regulator-name = "lcd_vneg";
252
+			regulator-min-microvolt = <4000000>;
253
+			regulator-max-microvolt = <6500000>;
237254 		};
238255 	};
239256 
240
-	fault-monitor {
241
-		compatible = "ti,lm3697-fault-monitor";
257
+	backlight {
258
+		#address-cells = <1>;
259
+		#size-cells = <0>;
260
+		compatible = "ti,lm36274-backlight";
261
+
262
+		led@0 {
263
+			reg = <0>;
264
+			led-sources = <0 2>;
265
+			label = "white:backlight_cluster";
266
+			linux,default-trigger = "backlight";
267
+		};
242268 	};
243269 };