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

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Date:   Thu, 21 Mar 2019 09:28:36 -0500
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 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>
---

v5 - No change - https://lore.kernel.org/patchwork/patch/1050409/

v4 - No change - https://lore.kernel.org/patchwork/patch/1050125/
v3 - updated keypad label on v1 comment - https://lore.kernel.org/patchwork/patch/1049023/
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..aea206f04f76 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 = "platform::kbd_backlight";
 		};
 	};
 };
-- 
2.21.0.5.gaeb582a983