From patchwork Thu Oct 19 09:01:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13428495 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B520BCDB465 for ; Thu, 19 Oct 2023 09:01:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344919AbjJSJBs (ORCPT ); Thu, 19 Oct 2023 05:01:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229998AbjJSJBq (ORCPT ); Thu, 19 Oct 2023 05:01:46 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B7B2FFE for ; Thu, 19 Oct 2023 02:01:44 -0700 (PDT) Received: from umang.jainideasonboard.com (unknown [103.251.226.1]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 5111D735; Thu, 19 Oct 2023 11:01:32 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1697706095; bh=8rybJaxLZiLCbzxQNSRsfONEDfgH/x0Uwlx2XXbiE7M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s1bj3rFv1xonrxvJd8Tt9nLqn5SLcNdphZkg0B3LIovYxAyFk3iL989e3619KefJC +P1W3VXHpRUrh8lq4harBvxGfAITmsAghIhe85liFG/TMgchKD0+hmmo0NS93XGX1k J2boO3A0g3fgsnwSlH9TeTnuM4+NvtJefyPuwO88= From: Umang Jain To: linux-staging@lists.linux.dev, linux-rpi-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Stefan Wahren , Greg Kroah-Hartman , Dan Carpenter , Kieran Bingham , Laurent Pinchart , Umang Jain Subject: [PATCH v3 1/3] staging: vc04_services: Support module autoloading using MODULE_DEVICE_TABLE Date: Thu, 19 Oct 2023 14:31:26 +0530 Message-Id: <20231019090128.430297-2-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231019090128.430297-1-umang.jain@ideasonboard.com> References: <20231019090128.430297-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org VC04 has now a independent bus vchiq_bus to register its devices. However, the module auto-loading for bcm2835-audio and bcm2835-camera currently happens through MODULE_ALIAS() macro specified explicitly. The correct way to auto-load a module, is when the alias is picked out from MODULE_DEVICE_TABLE(). In order to get there, we need to introduce vchiq_device_id and add relevant entries in file2alias.c infrastructure so that aliases can be generated. This patch targets adding vchiq_device_id and do_vchiq_entry, in order to generate those alias using the /script/mod/file2alias.c. Going forward the MODULE_ALIAS() from bcm2835-camera and bcm2835-audio will be dropped, in favour of MODULE_DEVICE_TABLE being used there. The alias format for vchiq_bus devices will be "vchiq:". Adjust the vchiq_bus_uevent() to reflect that. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart --- .../vc04_services/interface/vchiq_arm/vchiq_bus.c | 2 +- .../vc04_services/interface/vchiq_arm/vchiq_bus.h | 3 +++ include/linux/mod_devicetable.h | 4 ++++ scripts/mod/devicetable-offsets.c | 3 +++ scripts/mod/file2alias.c | 9 +++++++++ 5 files changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.c index 4ac3491efe45..8e40e006f14b 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.c @@ -26,7 +26,7 @@ static int vchiq_bus_uevent(const struct device *dev, struct kobj_uevent_env *en { const struct vchiq_device *device = container_of_const(dev, struct vchiq_device, dev); - return add_uevent_var(env, "MODALIAS=%s", dev_name(&device->dev)); + return add_uevent_var(env, "MODALIAS=vchiq:%s", dev_name(&device->dev)); } static int vchiq_bus_probe(struct device *dev) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.h index 7eaaf9a91cda..caa6fdf25bb1 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_bus.h @@ -7,6 +7,7 @@ #define _VCHIQ_DEVICE_H #include +#include struct vchiq_device { struct device dev; @@ -18,6 +19,8 @@ struct vchiq_driver { int (*resume)(struct vchiq_device *device); int (*suspend)(struct vchiq_device *device, pm_message_t state); + + const struct vchiq_device_id *id_table; struct device_driver driver; }; diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index b0678b093cb2..700cbf34c3b8 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -946,4 +946,8 @@ struct cdx_device_id { __u32 override_only; }; +struct vchiq_device_id { + char name[32]; +}; + #endif /* LINUX_MOD_DEVICETABLE_H */ diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c index abe65f8968dd..e8aadc780da5 100644 --- a/scripts/mod/devicetable-offsets.c +++ b/scripts/mod/devicetable-offsets.c @@ -267,5 +267,8 @@ int main(void) DEVID_FIELD(cdx_device_id, device); DEVID_FIELD(cdx_device_id, override_only); + DEVID(vchiq_device_id); + DEVID_FIELD(vchiq_device_id, name); + return 0; } diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 38120f932b0d..78dfae5a8720 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1478,6 +1478,14 @@ static int do_cdx_entry(const char *filename, void *symval, return 1; } +static int do_vchiq_entry(const char *filename, void *symval, char *alias) +{ + DEF_FIELD_ADDR(symval, vchiq_device_id, name); + sprintf(alias, "vchiq:%s", *name); + + return 1; +} + /* Does namelen bytes of name exactly match the symbol? */ static bool sym_is(const char *name, unsigned namelen, const char *symbol) { @@ -1558,6 +1566,7 @@ static const struct devtable devtable[] = { {"dfl", SIZE_dfl_device_id, do_dfl_entry}, {"ishtp", SIZE_ishtp_device_id, do_ishtp_entry}, {"cdx", SIZE_cdx_device_id, do_cdx_entry}, + {"vchiq", SIZE_vchiq_device_id, do_vchiq_entry}, }; /* Create MODULE_ALIAS() statements. From patchwork Thu Oct 19 09:01:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13428496 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8676CDB465 for ; Thu, 19 Oct 2023 09:02:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232966AbjJSJCA (ORCPT ); Thu, 19 Oct 2023 05:02:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232908AbjJSJB7 (ORCPT ); Thu, 19 Oct 2023 05:01:59 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 20B73FE for ; Thu, 19 Oct 2023 02:01:49 -0700 (PDT) Received: from umang.jainideasonboard.com (unknown [103.251.226.1]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 4F09310FF; Thu, 19 Oct 2023 11:01:36 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1697706100; bh=lK/bEA130soHMahWZcE98Y0uYsfbaFw7yK7wRb6MpGg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QOFudJTK60vc7iogOvi1Ds5uNLR1gQgIWVMc1tBcuZPbB2F5zOAeenoQzq3ZY4J8w AQGIeVbo1USlcUQAB7gpiwYUo+y8BGUK7FtY+WktTm9RdNkMNtBjPByhDBIOZ/iu1b A4DSoeCf2nk7UIf73t1lgR8Qbk5PI+RnI/fLL688= From: Umang Jain To: linux-staging@lists.linux.dev, linux-rpi-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Stefan Wahren , Greg Kroah-Hartman , Dan Carpenter , Kieran Bingham , Laurent Pinchart , Umang Jain Subject: [PATCH v3 2/3] staging: vc04_services: bcm2835-audio: Drop MODULE_ALIAS Date: Thu, 19 Oct 2023 14:31:27 +0530 Message-Id: <20231019090128.430297-3-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231019090128.430297-1-umang.jain@ideasonboard.com> References: <20231019090128.430297-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Drop MODULE_ALIAS in favour of MODULE_DEVICE_TABLE as the module alias should be dropped from there. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart --- drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c index 06bdc7673d4b..b74cb104e9de 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c @@ -311,12 +311,19 @@ static int snd_bcm2835_alsa_resume(struct vchiq_device *device) #endif +static struct vchiq_device_id device_id_table[] = { + { .name = "bcm2835-audio" }, + {} +}; +MODULE_DEVICE_TABLE(vchiq, device_id_table); + static struct vchiq_driver bcm2835_alsa_driver = { .probe = snd_bcm2835_alsa_probe, #ifdef CONFIG_PM .suspend = snd_bcm2835_alsa_suspend, .resume = snd_bcm2835_alsa_resume, #endif + .id_table = device_id_table, .driver = { .name = "bcm2835-audio", }, @@ -326,4 +333,3 @@ module_vchiq_driver(bcm2835_alsa_driver); MODULE_AUTHOR("Dom Cobley"); MODULE_DESCRIPTION("Alsa driver for BCM2835 chip"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("bcm2835-audio"); From patchwork Thu Oct 19 09:01:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13428497 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B11FCDB483 for ; Thu, 19 Oct 2023 09:02:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344936AbjJSJCB (ORCPT ); Thu, 19 Oct 2023 05:02:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232979AbjJSJB7 (ORCPT ); Thu, 19 Oct 2023 05:01:59 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 362AE129 for ; Thu, 19 Oct 2023 02:01:54 -0700 (PDT) Received: from umang.jainideasonboard.com (unknown [103.251.226.1]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id E3C06276; Thu, 19 Oct 2023 11:01:40 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1697706105; bh=0LdC8+GAY6U97gZ4OULmQjk1G/wf/jcpQbWa7v6paPw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vj9Qqk+pN56pV/YrmMjvSVJGUMYlp/0VGxs58NMXJwe+30ogcT2iZ8mksbY9sLP2l fDfqFtOcA48Y19y9NNEVsTkHvITVMJiJ24Kg4/ThFfzRY7maAcG+0sf8EizKw9k9Fg 5cMhFrHsjCM04vPQjQSHE9G42rUZV2MKkvoAXirY= From: Umang Jain To: linux-staging@lists.linux.dev, linux-rpi-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Stefan Wahren , Greg Kroah-Hartman , Dan Carpenter , Kieran Bingham , Laurent Pinchart , Umang Jain Subject: [PATCH v3 3/3] staging: vc04_services: bcm2835-camera: Drop MODULE_ALIAS Date: Thu, 19 Oct 2023 14:31:28 +0530 Message-Id: <20231019090128.430297-4-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231019090128.430297-1-umang.jain@ideasonboard.com> References: <20231019090128.430297-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Drop MODULE_ALIAS in favour of MODULE_DEVICE_TABLE as the module alias should be picked from there. Signed-off-by: Umang Jain Reviewed-by: Laurent Pinchart --- .../staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c index c873eace1437..e860fb89d42e 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c @@ -1995,9 +1995,16 @@ static void bcm2835_mmal_remove(struct vchiq_device *device) vchiq_mmal_finalise(instance); } +static const struct vchiq_device_id device_id_table[] = { + { .name = "bcm2835-camera" }, + {} +}; +MODULE_DEVICE_TABLE(vchiq, device_id_table); + static struct vchiq_driver bcm2835_camera_driver = { .probe = bcm2835_mmal_probe, .remove = bcm2835_mmal_remove, + .id_table = device_id_table, .driver = { .name = "bcm2835-camera", }, @@ -2008,4 +2015,3 @@ module_vchiq_driver(bcm2835_camera_driver) MODULE_DESCRIPTION("Broadcom 2835 MMAL video capture"); MODULE_AUTHOR("Vincent Sanders"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("bcm2835-camera");