Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965155AbcJRUoW (ORCPT ); Tue, 18 Oct 2016 16:44:22 -0400 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:43129 "EHLO s-opensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965068AbcJRUoR (ORCPT ); Tue, 18 Oct 2016 16:44:17 -0400 From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , linux-gpio@vger.kernel.org, Linus Walleij , Alexandre Courbot Subject: [PATCH 2/2] gpio: ts4800: Fix module autoload Date: Tue, 18 Oct 2016 17:44:02 -0300 Message-Id: <1476823442-31104-2-git-send-email-javier@osg.samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1476823442-31104-1-git-send-email-javier@osg.samsung.com> References: <1476823442-31104-1-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: 1083 Lines: 37 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/gpio/gpio-ts4800.ko | grep alias $ After this patch: $ modinfo drivers/gpio/gpio-ts4800.ko | grep alias alias: of:N*T*Ctechnologic,ts4800-gpioC* alias: of:N*T*Ctechnologic,ts4800-gpio Signed-off-by: Javier Martinez Canillas --- drivers/gpio/gpio-ts4800.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/gpio-ts4800.c b/drivers/gpio/gpio-ts4800.c index 99256115bea5..c2a80b4cbf32 100644 --- a/drivers/gpio/gpio-ts4800.c +++ b/drivers/gpio/gpio-ts4800.c @@ -66,6 +66,7 @@ static const struct of_device_id ts4800_gpio_of_match[] = { { .compatible = "technologic,ts4800-gpio", }, {}, }; +MODULE_DEVICE_TABLE(of, ts4800_gpio_of_match); static struct platform_driver ts4800_gpio_driver = { .driver = { -- 2.7.4