Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754170AbaDFLMd (ORCPT ); Sun, 6 Apr 2014 07:12:33 -0400 Received: from mail-vc0-f181.google.com ([209.85.220.181]:45112 "EHLO mail-vc0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751621AbaDFLMb (ORCPT ); Sun, 6 Apr 2014 07:12:31 -0400 MIME-Version: 1.0 In-Reply-To: References: <1396754381.13341.4.camel@phoenix> <20140406093053.GH12170@pengutronix.de> Date: Sun, 6 Apr 2014 13:12:30 +0200 Message-ID: Subject: Re: [PATCH RFC] leds: pca9685: Remove leds-pca9685 driver From: =?ISO-8859-1?Q?Maximilian_G=FCntner?= To: Axel Lin Cc: Steffen Trumtrar , Thierry Reding , Bryan Wu , Richard Purdie , "linux-kernel@vger.kernel.org" , "linux-leds@vger.kernel.org" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2014-04-06 12:40 GMT+02:00 Axel Lin : > 2014-04-06 17:30 GMT+08:00 Steffen Trumtrar : >> Hi! Hello, >> This confused me for a second, as there was no driver to replace when I wrote >> the pwm-pca9685 driver and I thought I missed something. But it seems I didn't >> and the pwm-pca9685 is actually older. > > Ah.. right, leds-pca9685 is a newer driver. > > 2013-10-22 leds: Added driver for the NXP PCA9685 I2C chip > 2013-05-30 pwm: add pca9685 driver > True. I wrote this driver in April 2013 since there was no driver available for the PCA9685 at this point. When I submitted it in October I only checked 'drivers/leds/' for support but not 'drivers/pwm'. >> >>> Use git grep to check current tree and found there is no user uses leds-pca9685. >>> So this patch removes leds-pca9685 driver. >>> >> >> If the platform setup is needed, maybe this can be integrated into the pwm driver >> instead of completely dropping it. I don't care for platform code, but if someone >> does, I don't want him to lose the support for it. > > Given the fact there is no user in current tree uses leds-pca9685, > I suspect if we need to add platform setup to pwm-pca9685. > ( I think the trend is to use DT, not the reverse ) > >> >> Otherwise I am okay with this drop (okay, I'm completely biased of course ;-)). >> But technically the pca9685 is not solely a LED driver IC, but a PWM IC, so it >> is in the wrong place anyhow. > > I also think PWM subsystem is better for this chip which is a PWM IC. +1 I also ACK the drop of leds-pca9685 in favor of pwm-pca9685. Thanks, Maximilian -- 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/