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Message-ID: <1352361197-27442-11-git-send-email-avinashphilip@ti.com>
Date: Thu, 8 Nov 2012 13:23:17 +0530
From: "Philip, Avinash" <avinashphilip@...com>
To: <thierry.reding@...onic-design.de>, <paul@...an.com>,
<tony@...mide.com>, <linux@....linux.org.uk>, <b-cousson@...com>
CC: <hvaibhav@...com>, <anilkumar@...com>,
<linux-kernel@...r.kernel.org>,
<devicetree-discuss@...ts.ozlabs.org>, <linux-doc@...r.kernel.org>,
<linux-omap@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <nsekhar@...com>,
<gururaja.hebbar@...com>, <vaibhav.bedia@...com>,
"Philip, Avinash" <avinashphilip@...com>
Subject: [PATCH v2 10/10] 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 185d632... 9857050... 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 185d632..9857050 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -18,6 +18,14 @@
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";
@@ -31,6 +39,12 @@
reg = <0x2d>;
};
};
+
+ ecap0: ecap@...00100 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ecap0_pins>;
+ };
};
vbat: fixedregulator@0 {
@@ -40,6 +54,13 @@
regulator-max-microvolt = <5000000>;
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
--
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