Thread (33 messages) 33 messages, 5 authors, 2018-09-26

Re: [PATCH V4 3/8] backlight: qcom-wled: Add new properties for PMI8998

From: Bjorn Andersson <hidden>
Date: 2018-08-07 05:20:41
Also in: dri-devel, linux-arm-msm, linux-devicetree, lkml

On Mon 09 Jul 03:22 PDT 2018, Kiran Gunda wrote:
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt
[..]
 - qcom,num-strings
 	Usage:        optional
 	Value type:   <u32>
 	Definition:   #; number of led strings attached;
-		      value from 1 to 3. default: 2
-		      This property is supported only for PM8941.
+		      value: For PM8941 from 1 to 3.
+			     For PMI8998 from 1 to 4.
[..]
+- qcom,enabled-strings
+	Usage:        optional
+	Value tyoe:   <u32 array>
+	Definition:   Array of the WLED strings numbered from 0 to 3. Each
+		      string of leds are operated individually. Specify the
+		      list of strings used by the device. Any combination of
+		      led strings can be used.
[..]
quoted hunk ↗ jump to hunk
 
 Example:
 
@@ -99,4 +146,5 @@ pm8941-wled@d800 {
 	qcom,switching-freq = <1600>;
 	qcom,ovp = <29>;
 	qcom,num-strings = <2>;
+	qcom,enabled-strings = <0x00 0x01>;
Nit. I would assume that specifying qcom,num-strings = <2> implies that
the first 2 strings are used, so one would not also specify
qcom,enabled-strings.

(And you should use decimal for natural numbers)


Reviewed-by: Bjorn Andersson <redacted>

Regards,
Bjorn
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help