linux-kernel - [PATCH 2/2] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1348914920-30737-3-git-send-email-avinashphilip@ti.com>
Date:	Sat, 29 Sep 2012 16:05:20 +0530
From:	"Philip, Avinash" <avinashphilip@...com>
To:	<b-cousson@...com>, <tony@...mide.com>,
	<thierry.reding@...onic-design.de>
CC:	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <omap@...r.kernel.org>,
	<nsekhar@...com>, <gururaja.hebbar@...com>,
	"Philip, Avinash" <avinashphilip@...com>
Subject: [PATCH 2/2] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm

PWM output from ecap0 uses as backlight source. Also adds low threshold
value to have a uniform divisions in brightness-levels scales.

Signed-off-by: Philip, Avinash <avinashphilip@...com>
---
:100644 100644 a5c4c62... 5516098... M	arch/arm/boot/dts/am335x-evm.dts
 arch/arm/boot/dts/am335x-evm.dts |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index a5c4c62..5516098 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -24,6 +24,14 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
+	am33xx_pinmux: pinmux@...10800 {
+		ecap0_pins: backlight_pins {
+			pinctrl-single,pins = <
+				0x164 0x0	/* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
+			>;
+		};
+	};
+
 	ocp {
 		uart1: serial@...09000 {
 			status = "okay";
@@ -75,6 +83,12 @@
 				reg = <0x48>;
 			};
 		};
+
+		ecap0: ecap@...00100 {
+			status = "okay";
+			pinctrl-names = "default";
+			pinctrl-0 = <&ecap0_pins>;
+		};
 	};
 
 	vbat: fixedregulator@0 {
@@ -90,6 +104,13 @@
 		regulator-name = "lis3_reg";
 		regulator-boot-on;
 	};
+
+	backlight {
+		compatible	= "pwm-backlight";
+		pwms = <&ecap0 0 50000 0>;
+		brightness-levels = <0 51 53 56 62 75 101 152 255>;
+		default-brightness-level = <8>;
+	};
 };
 
 /include/ "tps65910.dtsi"
-- 
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/