From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752077Ab2GIGHe (ORCPT ); Mon, 9 Jul 2012 02:07:34 -0400 Received: from hqemgate04.nvidia.com ([216.228.121.35]:11323 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751121Ab2GIGHa (ORCPT ); Mon, 9 Jul 2012 02:07:30 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Sun, 08 Jul 2012 23:07:24 -0700 From: Alexandre Courbot To: Thierry Reding CC: , , , , Alexandre Courbot Subject: [RFC][PATCH V2 3/3] tegra: add pwm backlight device tree nodes Date: Mon, 9 Jul 2012 15:08:25 +0900 Message-ID: <1341814105-20690-4-git-send-email-acourbot@nvidia.com> X-Mailer: git-send-email 1.7.11.1 In-Reply-To: <1341814105-20690-1-git-send-email-acourbot@nvidia.com> References: <1341814105-20690-1-git-send-email-acourbot@nvidia.com> X-NVConfidentiality: public 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 Signed-off-by: Alexandre Courbot --- arch/arm/boot/dts/tegra20-ventana.dts | 31 +++++++++++++++++++++++++++++++ arch/arm/boot/dts/tegra20.dtsi | 2 +- 2 files changed, 32 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts index be90544..c67d9e1 100644 --- a/arch/arm/boot/dts/tegra20-ventana.dts +++ b/arch/arm/boot/dts/tegra20-ventana.dts @@ -317,6 +317,37 @@ bus-width = <8>; }; + backlight { + compatible = "pwm-backlight"; + brightness-levels = <0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 255>; + default-brightness-level = <12>; + + pwms = <&pwm 2 5000000>; + pwm-names = "backlight"; + power-supply = <&backlight_reg>; + enable-gpios = <&gpio 28 0>; + + power-on-sequence = "REGULATOR", "power", <1>, + "DELAY", <10>, + "PWM", "backlight", <1>, + "GPIO", "enable", <1>; + power-off-sequence = "GPIO", "enable", <0>, + "PWM", "backlight", <0>, + "DELAY", <10>, + "REGULATOR", "power", <0>; + }; + + backlight_reg: fixedregulator@176 { + compatible = "regulator-fixed"; + regulator-name = "backlight_regulator"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + gpio = <&gpio 176 0>; + startup-delay-us = <0>; + enable-active-high; + regulator-boot-off; + }; + sound { compatible = "nvidia,tegra-audio-wm8903-ventana", "nvidia,tegra-audio-wm8903"; diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 405d167..67a6cd9 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -123,7 +123,7 @@ status = "disabled"; }; - pwm { + pwm: pwm { compatible = "nvidia,tegra20-pwm"; reg = <0x7000a000 0x100>; #pwm-cells = <2>; -- 1.7.11.1