From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Sverdlin Subject: Re: [PATCH] driver/i2c/mux: Add register based mux i2c-mux-reg Date: Wed, 17 Jun 2015 17:00:59 +0200 Message-ID: <55818BAB.5090605@nokia.com> References: <1434475692-4611-1-git-send-email-yorksun@freescale.com> <1434531244.2069.111.camel@x220> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1434531244.2069.111.camel@x220> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: ext Paul Bolle , York Sun Cc: wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Peter Korsgaard List-Id: linux-i2c@vger.kernel.org Hi! On 17/06/15 10:54, ext Paul Bolle wrote: >> +MODULE_ALIAS("platform:i2c-mux-reg"); > As far as I understand it, this alias is only useful if there's a > corresponding struct platform_device, somewhere. Ie, this alias needs a > platform_device that will fire of a "MODALIAS=platform:i2c-mux-reg" > uevent when it's created. (I don't know exactly how all that works, so > I'm handwaving quite a bit here.) That would be platform_device with a > "i2c-mux-reg" name. > > Did I get this right? Because then I think this MODULE_ALIAS() isn't > needed, as I couldn't find such a corresponding platform_device. You do not see the platform_device, because there are no users yet, put this MODULE_ALIAS() is perfectly fine, it will allow automatic module loading in non-DT case. -- Best regards, Alexander Sverdlin.