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[209.132.180.67]) by mx.google.com with ESMTP id i5si8619348pgq.412.2019.07.05.04.55.43; Fri, 05 Jul 2019 04:55:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=zR9tdtpe; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728443AbfGELfB (ORCPT + 99 others); Fri, 5 Jul 2019 07:35:01 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:35274 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726107AbfGELfB (ORCPT ); Fri, 5 Jul 2019 07:35:01 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x65BYpDq096314; Fri, 5 Jul 2019 06:34:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1562326491; bh=blnoL/MWFQnzkGsn5dq36BMBYhm1XiyMPpTo0t1/e6I=; h=Subject:To:CC:References:From:Date:In-Reply-To; b=zR9tdtpeup1SDfhhyN5dDMB3l6l9mjNL7EW1niy+QvfOSHjDcQZoBbenpuod3nXpQ QMhM+CZPY/OzVCgZ/HV7E6kCPvBT3534sIbqKZy58BuGiFjnQvUV9oQsTbZKG4PMVj 8Q2m67GBRcn5ljvu3knFGoQd8iwBa+tn9MFOSXYU= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x65BYo8j013814 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Jul 2019 06:34:51 -0500 Received: from DFLE108.ent.ti.com (10.64.6.29) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Fri, 5 Jul 2019 06:34:50 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Fri, 5 Jul 2019 06:34:50 -0500 Received: from [10.250.97.31] (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id x65BYmXQ070978; Fri, 5 Jul 2019 06:34:48 -0500 Subject: Re: [PATCH 0/4] Add a generic driver for LED-based backlight To: Pavel Machek CC: , , , , , , , , , , References: <20190701151423.30768-1-jjhiblot@ti.com> <20190705101434.fw5rpctnqt6dwg6e@devuan> From: Jean-Jacques Hiblot Message-ID: Date: Fri, 5 Jul 2019 13:34:45 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: <20190705101434.fw5rpctnqt6dwg6e@devuan> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/07/2019 12:14, Pavel Machek wrote: > On Mon 2019-07-01 17:14:19, Jean-Jacques Hiblot wrote: >> >> This series takes it from there and implements the binding that was >> discussed in https://patchwork.kernel.org/patch/7293991/. In this new >> binding the backlight device is a child of the LED controller instead of >> being another platform device that uses a phandle to reference a LED. > Other option would be to have backlight trigger. What are > advantages/disadvantages relative to that? I don't know how this would fit in the model where multiple panels are used, each with its own backlight. Also the notification is only about blanking. > Pavel >