Merge "dt-bindings: backlight: Add support to configure slew ramp time"

bindings/leds/backlight/qcom-spmi-wled.txt

@@ -10,9 +10,9 @@ platforms. The PMIC is connected to the host processor via SPMI bus.
 	Definition: should be one of the below.
 			"qcom,pmi8998-spmi-wled",
 			"qcom,pm8150l-spmi-wled",
-			"qcom,pm6150l-spmi-wled"
-			"qcom,pm660l-spmi-wled"
-			"qcom,pm7325b-spmi-wled"
+			"qcom,pm6150l-spmi-wled",
+			"qcom,pm660l-spmi-wled",
+			"qcom,pm7325b-spmi-wled",
 
 - reg
 	Usage:      required
@@ -158,6 +158,31 @@ platforms. The PMIC is connected to the host processor via SPMI bus.
 		        For details about IIO bindings see:
 			    Documentation/devicetree/bindings/iio/iio-bindings.txt
 
+- qcom,use-exp-dimming
+	Usage:      optional
+	Value type: <bool>
+	Definition: Specifies that exponential dimming lookup table values
+			    should be used.
+
+- qcom,exp-dimming-map
+	Usage:      optional
+	Value type: <u32 array>
+	Definition: It specifies a table of brightness values that can be programmed
+			    into WLED_SINK for exponential dimming which provides smooth brightness
+			    change. There should be exactly 256 values in the table and they should
+			    be at most 15 bits long. This table would be used only if the
+			    "qcom,use-exp-dimming" property is set. This feature is supported from
+			    PM7325B onwards.
+
+- qcom,slew-ramp-time
+	Usage:      optional
+	Value type: <u32>
+	Definition: Software brightness slew ramp time values in ms. This is supported from
+			    PM7325B onwards.
+			    Valid values are 2, 4, 8, 64, 128, 192, 256, 320, 384, 448, 512, 704, 896,
+			    1024, 2048, 4096.
+			    Default: 256
+
 Following properties are for child subnodes that are needed for WLED preflash
 (or torch), flash and switch. These child subnodes can be specified only for
 PMICs that has WLED5 (e.g. PM8150L).