Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933219AbbD1I5N (ORCPT ); Tue, 28 Apr 2015 04:57:13 -0400 Received: from mailout3.w1.samsung.com ([210.118.77.13]:19566 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932657AbbD1I5K (ORCPT ); Tue, 28 Apr 2015 04:57:10 -0400 X-AuditID: cbfec7f4-f79c56d0000012ee-77-553f4b66605d Message-id: <553F4B60.20204@samsung.com> Date: Tue, 28 Apr 2015 10:57:04 +0200 From: Jacek Anaszewski User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130804 Thunderbird/17.0.8 MIME-version: 1.0 To: Stas Sergeev Cc: linux-leds@vger.kernel.org, Linux kernel , Stas Sergeev Subject: Re: [PATCH v2 0/3] leds: blink resolution improvements References: <553E6CF5.4030601@list.ru> In-reply-to: <553E6CF5.4030601@list.ru> Content-type: text/plain; charset=UTF-8; format=flowed Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrILMWRmVeSWpSXmKPExsVy+t/xy7pp3vahBlM+GFhc3jWHzWLrm3WM Fq2bGpgtOvumsTiweNzbcpnZo+lUO6vH501yAcxRXDYpqTmZZalF+nYJXBlLDh5gK2hmrzj8 aC9rA+NZ1i5GTg4JAROJ78vfQ9liEhfurWfrYuTiEBJYyihxaMsNFpCEkMAzRonTiypBbF4B DYnHa3eANbAIqErcbz7ABGKzCRhK/HzxGswWFYiQ+HN6HytEvaDEj8n3gOZwcIgIyEtsaCwD CTMLVEj8/nyKEcQWFrCX2Lx/BTPEKjWJ1rf/wdZyCqhLrOj+wQxRbybxqGUdlC0vsXnNW+YJ jAKzkGyYhaRsFpKyBYzMqxhFU0uTC4qT0nMN9YoTc4tL89L1kvNzNzFCAvbLDsbFx6wOMQpw MCrx8GYw24cKsSaWFVfmHmKU4GBWEuGttQUK8aYkVlalFuXHF5XmpBYfYpTmYFES5527632I kEB6YklqdmpqQWoRTJaJg1OqgZGh6NCbz8Wqi8OVDd6Uc/4MkPBsmfPPQbtWOyB3ckqdpWHt 6/eJOyzYZxxUycvm4BAonuCwX3uf02bbx5sVPv87c2dO54UbjAv/rhQvjjs9/4pXxKP9cY1i Kbn1PEV3biiqTC5UTwh6qup4ne3lFsbM99PKknlPsBmxZiU4myy/yfacr7f+qRJLcUaioRZz UXEiAL1gbAdUAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1116 Lines: 33 Hi Stas, Have you tested it? I tried it with Samsung M0 board and my leds-aat1290 driver. It didn't work well. And for small delay intervals it will not have a chance to work reliably with all drivers, especially the ones which use mutex in their brightness_set op, since mutex can sleep. I am afraid that we have to stay with what we have currently. On 04/27/2015 07:08 PM, Stas Sergeev wrote: > Hello. > > The following patches improve the precision of led > timer trigger and add the delay unit control. > That allows to make PWM brightness control with timer > trigger. > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Best Regards, Jacek Anaszewski -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/