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=-0.8 required=3.0 tests=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 1D022C33CB1 for ; Tue, 14 Jan 2020 15:04:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ED43A222C4 for ; Tue, 14 Jan 2020 15:03:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729139AbgANPD7 (ORCPT ); Tue, 14 Jan 2020 10:03:59 -0500 Received: from relay12.mail.gandi.net ([217.70.178.232]:33093 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727092AbgANPD6 (ORCPT ); Tue, 14 Jan 2020 10:03:58 -0500 Received: from localhost (lfbn-lyo-1-1670-129.w90-65.abo.wanadoo.fr [90.65.102.129]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id AB6C520000A; Tue, 14 Jan 2020 15:03:53 +0000 (UTC) Date: Tue, 14 Jan 2020 16:03:53 +0100 From: Alexandre Belloni To: Claudiu.Beznea@microchip.com Cc: robh+dt@kernel.org, lee.jones@linaro.org, mark.rutland@arm.com, Nicolas.Ferre@microchip.com, Ludovic.Desroches@microchip.com, radu_nicolae.pirea@upb.ro, richard.genoud@gmail.com, a.zummo@towertech.it, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-rtc@vger.kernel.org Subject: Re: [PATCH v3 4/7] dt-bindings: atmel-usart: remove wildcard Message-ID: <20200114150353.GP3137@piout.net> References: <1578997397-23165-1-git-send-email-claudiu.beznea@microchip.com> <1578997397-23165-5-git-send-email-claudiu.beznea@microchip.com> <20200114104237.GM3137@piout.net> <20200114111704.GN3137@piout.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 14/01/2020 14:58:23+0000, Claudiu.Beznea@microchip.com wrote: > > Then, what is the point of adding microchip,sam9x60-dbgu ? > > Different meaning for CIDR register bits. Version is kept on bits 4 to 0 > but not documented in public datasheet, so version displayed by > drivers/soc/atmel/soc.c should work. But at91_get_cidr_exid_from_dbgu will not find the node unless you use two fallbacks. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com