Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp169270iob; Tue, 3 May 2022 14:14:40 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxeyI2V2KyFpiE4KA4n3aDZeuSypgPZYqAKOKSgWrEiIcepkbb1b0r5yf9kuK0RyZZ5m7SL X-Received: by 2002:a05:6402:268e:b0:427:c402:d6f3 with SMTP id w14-20020a056402268e00b00427c402d6f3mr12666447edd.358.1651612480435; Tue, 03 May 2022 14:14:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1651612480; cv=none; d=google.com; s=arc-20160816; b=bnZ3ISVG/TkWqPP0lun2Rqz1dtZclKvzEVb5toigSlhEd6J2iJKJXSTE+qiY98YoaA THbXEEuuMVnw+12QSGrZoBrfxOoI+2QYklxMxjF7ma9u/1QKgohG01MOp4ti+vIc9c9a AOLHGauz84/0YIVVhgLFXxJh9WchvwFebRnGEtzubzj1YGNmmeKTeW2pMoT9aRyZQ/KN YBDQrM1gRsmaW2/AU4pEuMR4KE7yxnAHXcsVLnPILU6+XdHzKbu6nfkpUbI7B88QZtOR z6MILGvQGvsPXLDCP53PxnuAcNPX02bdR8lqgKUImjyfguJWFRpjEDegbZGY29gDw8ad CvvQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:organization :message-id:user-agent:references:in-reply-to:subject:cc:to:from :date:mime-version; bh=B4bStb5Zh9SjuSFHGylXOHCiMzSDUGM8D292bxUp0VQ=; b=BRVDOLqaQgtcSNT2pHGqF/ef9KtkiUm7Slm/JB6BE+YWjkD4J7+3ujkCdhDXknLi3W YWbeMo+FVeGKMw7UDcIlreBiMFWJf2YIymTyFdQpDjcL6IQgP1FIA1qW5MnL0+e7Rbq9 jgHQX0aHS87iBGHaHWubfWaMUN+o3dUYfOLmPWo77wOs44x/AKaMX6yBvf9bHm+ph2Tu U3hZdjwkXowigFLpQ9xncixsQIVMnRUEKRuz5jXrra1Ht2aCX6Ah/FfG53NIuusla7eM fn8X5glX+TU8Q744J/C5SCIYYEumX+gEugV3tthOdpXoIBASGc4vaQ3tkAxOBKRapqk/ sjuw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id gx5-20020a1709068a4500b006f3c1c439f3si14617292ejc.595.2022.05.03.14.14.16; Tue, 03 May 2022 14:14:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232859AbiECIzJ (ORCPT + 99 others); Tue, 3 May 2022 04:55:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230464AbiECIzH (ORCPT ); Tue, 3 May 2022 04:55:07 -0400 Received: from skyrocket.fabmicro.ru (skyrocket.fabmicro.ru [217.116.57.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22C9A20BFD for ; Tue, 3 May 2022 01:51:34 -0700 (PDT) Received: from mail.fabmicro.ru (skyrocket.fabmicro.ru [217.116.57.130]) by skyrocket.fabmicro.ru (8.14.9/8.14.9) with ESMTP id 2438od2O057796; Tue, 3 May 2022 08:50:39 GMT (envelope-from rz@fabmicro.ru) MIME-Version: 1.0 Date: Tue, 03 May 2022 13:50:39 +0500 From: Ruslan Zalata To: Maxime Ripard Cc: Guenter Roeck , Jean Delvare , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Subject: Re: [PATCH v2] hwmon: (sun4i-lradc) Add driver for LRADC found on Allwinner A13/A20 SoC In-Reply-To: <20220502110010.q7vvdkdpaiz5acjl@houat> References: <20220428210906.29527-1-rz@fabmicro.ru> <20220502110010.q7vvdkdpaiz5acjl@houat> User-Agent: Roundcube Webmail/1.4.3 Message-ID: <6009fbef45a8b77caa4fc137093a1e23@fabmicro.ru> X-Sender: rz@fabmicro.ru Organization: Fabmicro, LLC. Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Maxime, > I guess a better path forward would be to either register an hwmon > device in the original driver, or convert that driver to iio and use > iio-hwmon. My first idea was to add hwmon to sun4i-lradc-keys.c driver. But soon as I began hacking the driver I quickly realized that it would be a mess since keyboard and hwmon belong to two different subsystems. Besides we would need to invent a way to control which way the driver works (new bindings?). So I decided that a new independent small driver would be a better solution. --- Regards, Ruslan. Fabmicro, LLC.