From patchwork Wed Oct 19 21:06:24 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 9385417 X-Patchwork-Delegate: rjw@sisk.pl Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2FDDD60762 for ; Wed, 19 Oct 2016 21:06:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1FB1F283E1 for ; Wed, 19 Oct 2016 21:06:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 146FD28A06; Wed, 19 Oct 2016 21:06:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72E20289C2 for ; Wed, 19 Oct 2016 21:06:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933143AbcJSVGr (ORCPT ); Wed, 19 Oct 2016 17:06:47 -0400 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:48278 "EHLO s-opensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933233AbcJSVGp (ORCPT ); Wed, 19 Oct 2016 17:06:45 -0400 Received: from localhost (localhost [127.0.0.1]) by s-opensource.com (Postfix) with ESMTP id C4B2EA0E78; Wed, 19 Oct 2016 21:06:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at osg.samsung.com Received: from s-opensource.com ([127.0.0.1]) by localhost (s-opensource.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id a_sHSD0xbJ-Q; Wed, 19 Oct 2016 21:06:52 +0000 (UTC) Received: from minerva.localdomain (unknown [181.121.136.80]) by s-opensource.com (Postfix) with ESMTPSA id 80529A0DFA; Wed, 19 Oct 2016 21:06:50 +0000 (UTC) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , Kyungmin Park , MyungJoo Ham , linux-pm@vger.kernel.org Subject: [PATCH 1/4] PM / devfreq: rk3399_dmc: Fix module autoload Date: Wed, 19 Oct 2016 18:06:24 -0300 Message-Id: <1476911187-11040-2-git-send-email-javier@osg.samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1476911187-11040-1-git-send-email-javier@osg.samsung.com> References: <1476911187-11040-1-git-send-email-javier@osg.samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/devfreq/rk3399_dmc.ko | grep alias $ After this patch: $ modinfo drivers/devfreq/rk3399_dmc.ko | grep alias alias: of:N*T*Crockchip,rk3399-dmcC* alias: of:N*T*Crockchip,rk3399-dmc Signed-off-by: Javier Martinez Canillas --- drivers/devfreq/rk3399_dmc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index e24b73d66659..77bd9d02e870 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -454,6 +454,7 @@ static const struct of_device_id rk3399dmc_devfreq_of_match[] = { { .compatible = "rockchip,rk3399-dmc" }, { }, }; +MODULE_DEVICE_TABLE(of, rk3399dmc_devfreq_of_match); static struct platform_driver rk3399_dmcfreq_driver = { .probe = rk3399_dmcfreq_probe,