From patchwork Wed Nov 23 16:37:08 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: 9443739 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 8EF7260235 for ; Wed, 23 Nov 2016 16:37:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 96D6B27BE5 for ; Wed, 23 Nov 2016 16:37:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8B93527C7A; Wed, 23 Nov 2016 16:37:44 +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 B175227BE5 for ; Wed, 23 Nov 2016 16:37:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755349AbcKWQhl (ORCPT ); Wed, 23 Nov 2016 11:37:41 -0500 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:49336 "EHLO osg.samsung.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753586AbcKWQhl (ORCPT ); Wed, 23 Nov 2016 11:37:41 -0500 Received: from localhost (localhost [127.0.0.1]) by osg.samsung.com (Postfix) with ESMTP id 60054A1358; Wed, 23 Nov 2016 16:37:36 +0000 (UTC) X-Virus-Scanned: amavisd-new at osg.samsung.com Received: from osg.samsung.com ([127.0.0.1]) by localhost (s-opensource.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PqQLyyLuwfHd; Wed, 23 Nov 2016 16:37:35 +0000 (UTC) Received: from minerva.localdomain (unknown [181.120.172.214]) by osg.samsung.com (Postfix) with ESMTPSA id D0210A0E75; Wed, 23 Nov 2016 16:37:33 +0000 (UTC) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , Mark Brown , linux-spi@vger.kernel.org Subject: [PATCH 1/4] spi: spi-axi: Fix module autoload Date: Wed, 23 Nov 2016 13:37:08 -0300 Message-Id: <1479919031-5112-2-git-send-email-javier@osg.samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1479919031-5112-1-git-send-email-javier@osg.samsung.com> References: <1479919031-5112-1-git-send-email-javier@osg.samsung.com> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@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/spi/spi-axi-spi-engine.ko | grep alias $ After this patch: $ modinfo drivers/spi/spi-axi-spi-engine.ko | grep alias alias: of:N*T*Cadi,axi-spi-engine-1.00.aC* alias: of:N*T*Cadi,axi-spi-engine-1.00.a Signed-off-by: Javier Martinez Canillas --- drivers/spi/spi-axi-spi-engine.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/spi/spi-axi-spi-engine.c b/drivers/spi/spi-axi-spi-engine.c index 2b1456e5e221..319225d7e761 100644 --- a/drivers/spi/spi-axi-spi-engine.c +++ b/drivers/spi/spi-axi-spi-engine.c @@ -574,6 +574,7 @@ static const struct of_device_id spi_engine_match_table[] = { { .compatible = "adi,axi-spi-engine-1.00.a" }, { }, }; +MODULE_DEVICE_TABLE(of, spi_engine_match_table); static struct platform_driver spi_engine_driver = { .probe = spi_engine_probe,