From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.kundenserver.de ([212.227.17.13]:60555 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751117AbaLQVyy (ORCPT ); Wed, 17 Dec 2014 16:54:54 -0500 From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org Cc: Lee Jones , linux-kernel@vger.kernel.org, a.zummo@towertech.it, kernel@stlinux.com, rtc-linux@googlegroups.com, devicetree@vger.kernel.org, wim@iguana.be, linux@roeck-us.net, linux-watchdog@vger.kernel.org Subject: Re: [PATCH 5/8] watchdog: bindings: Provide ST bindings for ST's LPC Watchdog device Date: Wed, 17 Dec 2014 22:54:12 +0100 Message-ID: <5479005.CEJLtxOOIa@wuerfel> In-Reply-To: <1418834727-1602-6-git-send-email-lee.jones@linaro.org> References: <1418834727-1602-1-git-send-email-lee.jones@linaro.org> <1418834727-1602-6-git-send-email-lee.jones@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-watchdog-owner@vger.kernel.org List-Id: linux-watchdog@vger.kernel.org On Wednesday 17 December 2014 16:45:24 Lee Jones wrote: > +- compatible : Must be one of: "st,stih407-lpc" "st,stih416-lpc" > + "st,stih415-lpc" "st,stid127-lpc" > +- reg : LPC registers base address + size > +- interrupts : LPC interrupt line number and associated flags > +- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) > +- st,lpc-mode : The LPC can run either one of two modes ST_LPC_MODE_RTC [0] or > + ST_LPC_MODE_WDT [1]. One (and only one) mode must be > + selected. > I'm glad you got it to work with two drivers for the same device. With this binding, I'm still a bit unhappy about the st,lpc-mode property, in particular since you rely on a shared include file for something that can only be set in one way or another and always has to be present. Why not just use a boolean property that enforces one mode when present and another mode when absent? Arnd