From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752830Ab3ABN1R (ORCPT ); Wed, 2 Jan 2013 08:27:17 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:46077 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752649Ab3ABN1P (ORCPT ); Wed, 2 Jan 2013 08:27:15 -0500 From: Philip Avinash To: , , , CC: , , , , , , , , Philip Avinash Subject: [PATCH 7/7] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evmsk Date: Wed, 2 Jan 2013 18:54:54 +0530 Message-ID: <1357133094-30806-8-git-send-email-avinashphilip@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1357133094-30806-1-git-send-email-avinashphilip@ti.com> References: <1357133094-30806-1-git-send-email-avinashphilip@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PWM output from ecap2 uses as backlight source. Also adds low threshold value to have a uniform divisions in brightness-levels scales with inverse polarity. Signed-off-by: Philip Avinash Reviewed-by: Thierry Reding --- arch/arm/boot/dts/am335x-evmsk.dts | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts index f5a6162..a50f286 100644 --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -51,6 +51,12 @@ 0x9c 0x27 /* gpmc_ben0_cle.gpio2_5, INPUT | MODE7 */ >; }; + + ecap2_pins: backlight_pins { + pinctrl-single,pins = < + 0x19c 0x4 /* mcasp0_ahclkr.ecap2_in_pwm2_out MODE4 */ + >; + }; }; ocp { @@ -94,6 +100,16 @@ st,max-limit-z = <750>; }; }; + + epwmss2: epwmss@48304000 { + status = "okay"; + + ecap2: ecap@48304100 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&ecap2_pins>; + }; + }; }; vbat: fixedregulator@0 { @@ -170,6 +186,13 @@ gpios = <&gpio3 5 0>; }; }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&ecap2 0 50000 1>; + brightness-levels = <0 58 61 66 75 90 125 170 255>; + default-brightness-level = <8>; + }; }; /include/ "tps65910.dtsi" -- 1.7.9.5