From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philip Avinash Subject: [PATCH 6/7] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm Date: Wed, 2 Jan 2013 18:54:53 +0530 Message-ID: <1357133094-30806-7-git-send-email-avinashphilip@ti.com> References: <1357133094-30806-1-git-send-email-avinashphilip@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:46038 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752649Ab3ABN0x (ORCPT ); Wed, 2 Jan 2013 08:26:53 -0500 In-Reply-To: <1357133094-30806-1-git-send-email-avinashphilip@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: tony@atomide.com, paul@pwsan.com, linux@arm.linux.org.uk, b-cousson@ti.com Cc: hvaibhav@ti.com, anilkumar@ti.com, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, nsekhar@ti.com, gururaja.hebbar@ti.com, vaibhav.bedia@ti.com, Philip Avinash 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 Reviewed-by: Thierry Reding --- arch/arm/boot/dts/am335x-evm.dts | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index d649644..fd3b691 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -44,6 +44,12 @@ 0x154 0x27 /* spi0_d0.gpio0_3, INPUT | MODE7 */ >; }; + + ecap0_pins: backlight_pins { + pinctrl-single,pins = < + 0x164 0x0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */ + >; + }; }; ocp { @@ -102,6 +108,16 @@ reg = <0x48>; }; }; + + epwmss0: epwmss@48300000 { + status = "okay"; + + ecap0: ecap@48300100 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap0_pins>; + }; + }; }; vbat: fixedregulator@0 { @@ -158,6 +174,13 @@ gpio-key,wakeup; }; }; + + 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" -- 1.7.9.5