Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936514AbcJRVCP (ORCPT ); Tue, 18 Oct 2016 17:02:15 -0400 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:43328 "EHLO s-opensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935513AbcJRVCG (ORCPT ); Tue, 18 Oct 2016 17:02:06 -0400 From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , Wolfram Sang , linux-i2c@vger.kernel.org Subject: [PATCH 3/4] i2c: xlr: Fix module autoload for OF registration Date: Tue, 18 Oct 2016 18:01:47 -0300 Message-Id: <1476824508-4679-4-git-send-email-javier@osg.samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1476824508-4679-1-git-send-email-javier@osg.samsung.com> References: <1476824508-4679-1-git-send-email-javier@osg.samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1093 Lines: 38 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/i2c/busses/i2c-xlr.ko | grep alias alias: platform:xlr-i2cbus After this patch: $ modinfo drivers/i2c/busses/i2c-xlr.ko | grep alias alias: platform:xlr-i2cbus alias: of:N*T*Csigma,smp8642-i2cC* alias: of:N*T*Csigma,smp8642-i2c Signed-off-by: Javier Martinez Canillas --- drivers/i2c/busses/i2c-xlr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c index 0968f59b6df5..ad17d88d8573 100644 --- a/drivers/i2c/busses/i2c-xlr.c +++ b/drivers/i2c/busses/i2c-xlr.c @@ -358,6 +358,7 @@ static const struct of_device_id xlr_i2c_dt_ids[] = { }, { } }; +MODULE_DEVICE_TABLE(of, xlr_i2c_dt_ids); static int xlr_i2c_probe(struct platform_device *pdev) { -- 2.7.4