[PATCH v3 2/2] dt: bindings: tps65217: add compatible property for backlight subnode

[Johannes Pointner <johannes.pointner-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Add documentation for compatible property of backlight subnode.

Signed-off-by: Johannes Pointner <johannes.pointner-5O2GiQo/Ci2aMPzRcYMCawC/G2K4zDHf@public.gmane.org>
---
Changes since v2:
1. Removed the pmic part of the patch.
2. Added newline before subnode in the example.
---
 .../devicetree/bindings/video/backlight/tps65217-backlight.txt | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt b/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt
index 5fb9279..63ef699 100644
--- a/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt
+++ b/Documentation/devicetree/bindings/video/backlight/tps65217-backlight.txt
@@ -6,19 +6,23 @@ used to drive LEDs for use as backlights.
 Required properties:
 - compatible: "ti,tps65217"
 - reg: I2C slave address
-- backlight: node for specifying WLED1 and WLED2 lines in TPS65217
+- backlight: subnode for specifying WLED1 and WLED2 lines in TPS65217
+
+Required subnode properties:
+- compatible: "ti,tps65217-bl"
 - isel: selection bit, valid values: 1 for ISEL1 (low-level) and 2 for ISEL2 (high-level)
 - fdim: PWM dimming frequency, valid values: 100, 200, 500, 1000
 - default-brightness: valid values: 0-100
 
-Each regulator is defined using the standard binding for regulators.
 
 Example:
 
 	tps: tps@24 {
 		reg = <0x24>;
 		compatible = "ti,tps65217";
-		backlight {
+
+		tps_bl: backlight {
+			compatible = "ti,tps65217-bl";
 			isel = <1>;  /* 1 - ISET1, 2 ISET2 */
 			fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
 			default-brightness = <50>;
-- 
2.1.2
--
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