From mboxrd@z Thu Jan 1 00:00:00 1970 From: Javier Martinez Canillas Subject: [PATCH 1/4] power: reset: at91-reset: Fix module autoload Date: Mon, 17 Oct 2016 15:36:12 -0300 Message-ID: <1476729375-17526-2-git-send-email-javier@osg.samsung.com> References: <1476729375-17526-1-git-send-email-javier@osg.samsung.com> Return-path: Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:37071 "EHLO s-opensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757498AbcJQSgd (ORCPT ); Mon, 17 Oct 2016 14:36:33 -0400 In-Reply-To: <1476729375-17526-1-git-send-email-javier@osg.samsung.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , Sebastian Reichel , linux-pm@vger.kernel.org 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/power/reset/at91-reset.ko | grep alias $ After this patch: $ modinfo drivers/power/reset/at91-reset.ko | grep alias alias: of:N*T*Catmel,sama5d3-rstcC* alias: of:N*T*Catmel,sama5d3-rstc alias: of:N*T*Catmel,at91sam9g45-rstcC* alias: of:N*T*Catmel,at91sam9g45-rstc alias: of:N*T*Catmel,at91sam9260-rstcC* alias: of:N*T*Catmel,at91sam9260-rstc alias: platform:at91-sam9g45-reset alias: platform:at91-sam9260-reset Signed-off-by: Javier Martinez Canillas --- drivers/power/reset/at91-reset.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index 1b5d450586d1..568580cf0655 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -175,6 +175,7 @@ static const struct of_device_id at91_reset_of_match[] = { { .compatible = "atmel,sama5d3-rstc", .data = sama5d3_restart }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, at91_reset_of_match); static struct notifier_block at91_restart_nb = { .priority = 192, @@ -242,6 +243,7 @@ static const struct platform_device_id at91_reset_plat_match[] = { { "at91-sam9g45-reset", (unsigned long)at91sam9g45_restart }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(platform, at91_reset_plat_match); static struct platform_driver at91_reset_driver = { .remove = __exit_p(at91_reset_remove), -- 2.7.4