From patchwork Tue Nov 27 08:48:16 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: avinash philip X-Patchwork-Id: 1809471 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 4F79FDF254 for ; Tue, 27 Nov 2012 08:52:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758612Ab2K0IwO (ORCPT ); Tue, 27 Nov 2012 03:52:14 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:57854 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757963Ab2K0IwM (ORCPT ); Tue, 27 Nov 2012 03:52:12 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id qAR8prii003039; Tue, 27 Nov 2012 02:51:54 -0600 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id qAR8prp9025273; Tue, 27 Nov 2012 14:21:53 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Tue, 27 Nov 2012 14:21:52 +0530 Received: from localhost.localdomain (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id qAR8mTUB027186; Tue, 27 Nov 2012 14:21:52 +0530 From: "Philip, Avinash" To: , , , , CC: , , , , , , , , , , "Philip, Avinash" Subject: [PATCH v5 11/12] ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm Date: Tue, 27 Nov 2012 14:18:16 +0530 Message-ID: <1354006097-25895-12-git-send-email-avinashphilip@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1354006097-25895-1-git-send-email-avinashphilip@ti.com> References: <1354006097-25895-1-git-send-email-avinashphilip@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org 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 --- Changes since v4: - Replaced usage of tab with space in compatible field Changes since v3: - Add epwmss parent status="okay" field. arch/arm/boot/dts/am335x-evm.dts | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 9f65f17..73a035b 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"