From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752854AbbIQDHe (ORCPT ); Wed, 16 Sep 2015 23:07:34 -0400 Received: from nasmtp01.atmel.com ([192.199.1.246]:21217 "EHLO DVREDG02.corp.atmel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751967AbbIQDHc (ORCPT ); Wed, 16 Sep 2015 23:07:32 -0400 Subject: Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio amplifier driver To: Mark Brown References: <1441086101-15303-1-git-send-email-songjun.wu@atmel.com> <1441086101-15303-3-git-send-email-songjun.wu@atmel.com> <20150903114316.GV12027@sirena.org.uk> <55EC0AFE.3080809@atmel.com> <20150907162548.GW5313@sirena.org.uk> <55EEAC0D.7010003@atmel.com> <20150908122340.GC9751@sirena.org.uk> <55F78C79.30102@atmel.com> <20150916194234.GR12027@sirena.org.uk> CC: , , , , , , , , , , , , From: "Wu, Songjun" Organization: ATMEL Message-ID: <55FA2E68.5010104@atmel.com> Date: Thu, 17 Sep 2015 11:07:20 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20150916194234.GR12027@sirena.org.uk> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/17/2015 03:42, Mark Brown wrote: > On Tue, Sep 15, 2015 at 11:11:53AM +0800, Wu, Songjun wrote: > >> I try to use one entry, but there is a problem. >> It's about 'driver_data' in struct device. >> In function snd_soc_register_card, the parameter 'card' will be set to >> 'driver_data' by the code 'dev_set_drvdata(card->dev, card)'. >> Then some resources(eg. regmap, clock) also need be recorded by >> 'driver_data'. One entry could only has one 'driver_data'. I think the best >> way is to create two entries, like the current dts. >> What's your opinion? > > Look at the recently applied sunxi driver for an example of how to do > this - it's a similar piece of hardware (entirely in the SoC and so on). > Thank you, It really helps me. I will make a second version soon.