From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DC4FC4708F for ; Wed, 2 Jun 2021 10:22:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 31DF561182 for ; Wed, 2 Jun 2021 10:22:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230131AbhFBKX6 (ORCPT ); Wed, 2 Jun 2021 06:23:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38928 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229603AbhFBKX4 (ORCPT ); Wed, 2 Jun 2021 06:23:56 -0400 Received: from ssl.serverraum.org (ssl.serverraum.org [IPv6:2a01:4f8:151:8464::1:2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89A6CC061574; Wed, 2 Jun 2021 03:22:13 -0700 (PDT) Received: from ssl.serverraum.org (web.serverraum.org [172.16.0.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ssl.serverraum.org (Postfix) with ESMTPSA id 491A52222E; Wed, 2 Jun 2021 12:22:09 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2016061301; t=1622629330; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9JjiZVY1G39yLkYo2plpR+nek2Ix2xJGXMP7Q3ED5aw=; b=v2RezFrHNxnZUZ1VpIP4uqNw6KTOg8ZHU1Kb9SuS2iu0Ulcvv1//avHR2ebe/r0G1p5JkI 3KLkSTk+vyyEjpfGDW1gTtpyn6NVbSnzTY2BRqw8fnGijr+iCDD3+7FMDqOCLZoJeD7Wci VHHrcyy5EYnpaVpiHRztD1ksEMhOylo= MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 02 Jun 2021 12:22:09 +0200 From: Michael Walle To: Lee Jones Cc: Robert Marko , Rob Herring , Linus Walleij , bgolaszewski@baylibre.com, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Luka Perkov , jmp@epiphyte.org, Paul Menzel , Donald Buczek Subject: Re: [PATCH v2 3/4] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings In-Reply-To: <20210601144826.GI543307@dell> References: <20210524120539.3267145-1-robert.marko@sartura.hr> <20210524120539.3267145-3-robert.marko@sartura.hr> <20210524230940.GA1350504@robh.at.kernel.org> <20210525074649.GC4005783@dell> <20210526075255.GG4005783@dell> <20210601081933.GU543307@dell> <50ced58164999f51a8c8b9c8dc01468e@walle.cc> <20210601135816.GG543307@dell> <20210601144826.GI543307@dell> User-Agent: Roundcube Webmail/1.4.11 Message-ID: X-Sender: michael@walle.cc Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 2021-06-01 16:48, schrieb Lee Jones: > On Tue, 01 Jun 2021, Lee Jones wrote: > >> On Tue, 01 Jun 2021, Michael Walle wrote: >> >> > Am 2021-06-01 10:19, schrieb Lee Jones: >> > > Why do you require one single Regmap anyway? Are they register banks >> > > not neatly separated on a per-function basis? >> > >> > AFAIK you can only have one I2C device driver per device, hence the >> > simple-mfd-i2c. >> >> Sorry, can you provide more detail. > > I'd still like further explanation to be sure, but if you mean what I > think you mean then, no, I don't think that's correct. We've already discussed this: https://lore.kernel.org/lkml/20200622075145.1464020-1-lee.jones@linaro.org/ https://lore.kernel.org/lkml/20200605065709.GD3714@dell/ And how would a device tree binding look like if you have multiple i2c devices with the same i2c address? -michael