linux-kernel - [PATCH v2 2/4] ARM: dts: omap4-droid4: Update backlight dt properties

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Message-ID: <20190308200912.28163-2-dmurphy@ti.com>
Date:   Fri, 8 Mar 2019 14:09:10 -0600
From:   Dan Murphy <dmurphy@...com>
To:     <robh+dt@...nel.org>, <jacek.anaszewski@...il.com>, <pavel@....cz>,
        <tony@...mide.com>, <lee.jones@...aro.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-leds@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [PATCH v2 2/4] ARM: dts: omap4-droid4: Update backlight dt properties

Update the properties for the lm3532 device node for droid4.
With this change the backlight LED string and the keypad
LED strings will be controlled separately.

Signed-off-by: Dan Murphy <dmurphy@...com>
---

v2 - Fixed ramp-up and ramp-down properties, removed hard coded property values,
I did not change the label as it is undecided what it could be - https://lore.kernel.org/patchwork/patch/1048806/

 arch/arm/boot/dts/omap4-droid4-xt894.dts | 26 ++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index e21ec929f096..71e1a90dfe4d 100644
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -383,20 +383,30 @@
 };
 
 &i2c1 {
-	lm3532@38 {
+	led-controller@38 {
 		compatible = "ti,lm3532";
+		#address-cells = <1>;
+		#size-cells = <0>;
 		reg = <0x38>;
 
 		enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
 
-		lcd_backlight: backlight {
-			compatible = "ti,lm3532-backlight";
+		ramp-up-us = <1024>;
+		ramp-down-us = <8193>;
 
-			lcd {
-				led-sources = <0 1 2>;
-				ramp-up-msec = <1>;
-				ramp-down-msec = <0>;
-			};
+		lcd_backlight: led@0 {
+			reg = <0>;
+			led-sources = <2>;
+			ti,led-mode = <0>;
+			label = "backlight";
+			linux,default-trigger = "backlight";
+		};
+
+		led@1 {
+			reg = <1>;
+			led-sources = <1>;
+			ti,led-mode = <0>;
+			label = "keypad";
 		};
 	};
 };
-- 
2.20.1.390.gb5101f9297