From patchwork Fri Jun 30 11:06:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 698394 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 5FE26EB64D7 for ; Fri, 30 Jun 2023 11:08:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232559AbjF3LIg (ORCPT ); Fri, 30 Jun 2023 07:08:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232591AbjF3LIY (ORCPT ); Fri, 30 Jun 2023 07:08:24 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E79E3C0A for ; Fri, 30 Jun 2023 04:07:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1688123254; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=F4l37O75DmPfTpyAvJFFDUFZtBVP7vi3gVmGfbupEgA=; b=UBAYu6DD/pzU9RucPe1C1JkY226SyRtAEEmH44mDzfVZwhs92z3GecTHSivJz/uMUHIiVX texxuMGzsEe/INx06udo8iGb41g7adgcIleq+dV9NQSrnzJ7cmgix9dtRZ1142RXE7qdah Xxj6arV1JvmeSSviCIIwljJ5eDpnC7A= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-632-5H0IWoRuPEK25D9dfUHjXA-1; Fri, 30 Jun 2023 07:07:30 -0400 X-MC-Unique: 5H0IWoRuPEK25D9dfUHjXA-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id AB8E4856506; Fri, 30 Jun 2023 11:07:29 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.193.184]) by smtp.corp.redhat.com (Postfix) with ESMTP id A1634492B02; Fri, 30 Jun 2023 11:07:26 +0000 (UTC) From: Hans de Goede To: Sakari Ailus , Laurent Pinchart , Daniel Scally Cc: Hans de Goede , Mauro Carvalho Chehab , Andy Shevchenko , Kate Hsuan , Hao Yao , Bingbu Cao , linux-media@vger.kernel.org Subject: [PATCH v2 13/15] media: atomisp: csi2-bridge: Switch to new common ipu_bridge_init() Date: Fri, 30 Jun 2023 13:06:41 +0200 Message-ID: <20230630110643.209761-14-hdegoede@redhat.com> In-Reply-To: <20230630110643.209761-1-hdegoede@redhat.com> References: <20230630110643.209761-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Remove the duplicate IPU ACPI bridge code and use the new shared ipu_bridge_init() functionality. Note this will also use / assume v4l2-async device instantation for ov5693 sensors on atomisp devices since ipu_supported_sensors[] already contains a match for this. This is fine since recent atomisp improvements allow the atomisp code to work with generic v4l2 sensor drivers and using an unmodified drivers/media/i2c/ov5693.c has been successfully tested on an Acer Iconia W4 820 tablet with Bay an ISP2400 + OV5693 sensor. Signed-off-by: Hans de Goede Reviewed-by: Daniel Scally --- drivers/staging/media/atomisp/Kconfig | 2 + .../staging/media/atomisp/pci/atomisp_csi2.h | 67 ---- .../media/atomisp/pci/atomisp_csi2_bridge.c | 326 +++--------------- .../staging/media/atomisp/pci/atomisp_v4l2.c | 1 + 4 files changed, 48 insertions(+), 348 deletions(-) diff --git a/drivers/staging/media/atomisp/Kconfig b/drivers/staging/media/atomisp/Kconfig index e9b168ba97bf..1c1007362e21 100644 --- a/drivers/staging/media/atomisp/Kconfig +++ b/drivers/staging/media/atomisp/Kconfig @@ -12,9 +12,11 @@ menuconfig INTEL_ATOMISP config VIDEO_ATOMISP tristate "Intel Atom Image Signal Processor Driver" depends on VIDEO_DEV && INTEL_ATOMISP + depends on MEDIA_PCI_SUPPORT && I2C depends on PMIC_OPREGION select V4L2_FWNODE select IOSF_MBI + select IPU_BRIDGE select VIDEOBUF2_VMALLOC select VIDEO_V4L2_SUBDEV_API help diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2.h b/drivers/staging/media/atomisp/pci/atomisp_csi2.h index 16ddb3ab2963..8a112acba1e0 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_csi2.h +++ b/drivers/staging/media/atomisp/pci/atomisp_csi2.h @@ -30,9 +30,6 @@ #define CSI2_PAD_SOURCE 1 #define CSI2_PADS_NUM 2 -#define CSI2_MAX_LANES 4 -#define CSI2_MAX_LINK_FREQS 3 - #define CSI2_MAX_ACPI_GPIOS 2u struct acpi_device; @@ -55,70 +52,6 @@ struct atomisp_csi2_acpi_gpio_parsing_data { unsigned int map_count; }; -enum atomisp_csi2_sensor_swnodes { - SWNODE_SENSOR, - SWNODE_SENSOR_PORT, - SWNODE_SENSOR_ENDPOINT, - SWNODE_CSI2_PORT, - SWNODE_CSI2_ENDPOINT, - SWNODE_COUNT -}; - -struct atomisp_csi2_property_names { - char clock_frequency[16]; - char rotation[9]; - char bus_type[9]; - char data_lanes[11]; - char remote_endpoint[16]; - char link_frequencies[17]; -}; - -struct atomisp_csi2_node_names { - char port[7]; - char endpoint[11]; - char remote_port[7]; -}; - -struct atomisp_csi2_sensor_config { - const char *hid; - int lanes; - int nr_link_freqs; - u64 link_freqs[CSI2_MAX_LINK_FREQS]; -}; - -struct atomisp_csi2_sensor { - /* Append port in "-%u" format as suffix of HID */ - char name[ACPI_ID_LEN + 4]; - struct acpi_device *adev; - int port; - int lanes; - - /* SWNODE_COUNT + 1 for terminating NULL */ - const struct software_node *group[SWNODE_COUNT + 1]; - struct software_node swnodes[SWNODE_COUNT]; - struct atomisp_csi2_node_names node_names; - struct atomisp_csi2_property_names prop_names; - /* "clock-frequency", "rotation" + terminating entry */ - struct property_entry dev_properties[3]; - /* "bus-type", "data-lanes", "remote-endpoint" + "link-freq" + terminating entry */ - struct property_entry ep_properties[5]; - /* "data-lanes", "remote-endpoint" + terminating entry */ - struct property_entry csi2_properties[3]; - struct software_node_ref_args local_ref[1]; - struct software_node_ref_args remote_ref[1]; - struct software_node_ref_args vcm_ref[1]; - /* GPIO mappings storage */ - struct atomisp_csi2_acpi_gpio_map gpio_map; -}; - -struct atomisp_csi2_bridge { - struct software_node csi2_node; - char csi2_node_name[14]; - u32 data_lanes[CSI2_MAX_LANES]; - unsigned int n_sensors; - struct atomisp_csi2_sensor sensors[ATOMISP_CAMERA_NR_PORTS]; -}; - struct atomisp_mipi_csi2_device { struct v4l2_subdev subdev; struct media_pad pads[CSI2_PADS_NUM]; diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c index 0d12ba78d9c1..d7b8c3de0e17 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c +++ b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c @@ -14,31 +14,14 @@ #include #include #include + +#include #include #include "atomisp_cmd.h" #include "atomisp_csi2.h" #include "atomisp_internal.h" -#define NODE_SENSOR(_HID, _PROPS) \ - ((const struct software_node) { \ - .name = _HID, \ - .properties = _PROPS, \ - }) - -#define NODE_PORT(_PORT, _SENSOR_NODE) \ - ((const struct software_node) { \ - .name = _PORT, \ - .parent = _SENSOR_NODE, \ - }) - -#define NODE_ENDPOINT(_EP, _PORT, _PROPS) \ - ((const struct software_node) { \ - .name = _EP, \ - .parent = _PORT, \ - .properties = _PROPS, \ - }) - #define PMC_CLK_RATE_19_2MHZ 19200000 /* @@ -83,21 +66,6 @@ static const guid_t atomisp_dsm_guid = GUID_INIT(0xdc2f6c4f, 0x045b, 0x4f1d, 0x97, 0xb9, 0x88, 0x2a, 0x68, 0x60, 0xa4, 0xbe); -/* - * Extend this array with ACPI Hardware IDs of sensors known to be working - * plus the default number of links + link-frequencies. - * - * Do not add an entry for a sensor that is not actually supported, - * or which have not yet been converted to work without atomisp_gmin - * power-management and with v4l2-async probing. - */ -static const struct atomisp_csi2_sensor_config supported_sensors[] = { - /* GalaxyCore GC0310 */ - { "INT0310", 1 }, - /* Omnivision OV2680 */ - { "OVTI2680", 1 }, -}; - /* * gmin_cfg parsing code. This is a cleaned up version of the gmin_cfg parsing * code from atomisp_gmin_platform.c. @@ -400,8 +368,7 @@ static int atomisp_csi2_handle_acpi_gpio_res(struct acpi_resource *ares, void *_ * the INT3472 discrete.c code and there is some overlap, but there are * enough differences that it is difficult to share the code. */ -static int atomisp_csi2_add_gpio_mappings(struct atomisp_csi2_sensor *sensor, - struct acpi_device *adev) +static int atomisp_csi2_add_gpio_mappings(struct acpi_device *adev) { struct atomisp_csi2_acpi_gpio_parsing_data data = { }; LIST_HEAD(resource_list); @@ -469,9 +436,12 @@ static int atomisp_csi2_add_gpio_mappings(struct atomisp_csi2_sensor *sensor, } } + data.map = kzalloc(sizeof(*data.map), GFP_KERNEL); + if (!data.map) + return -ENOMEM; + /* Now parse the ACPI resources and build the lookup table */ data.adev = adev; - data.map = &sensor->gpio_map; ret = acpi_dev_get_resources(adev, &resource_list, atomisp_csi2_handle_acpi_gpio_res, &data); if (ret < 0) @@ -491,220 +461,59 @@ static int atomisp_csi2_add_gpio_mappings(struct atomisp_csi2_sensor *sensor, return ret; } -static const struct atomisp_csi2_property_names prop_names = { - .clock_frequency = "clock-frequency", - .rotation = "rotation", - .bus_type = "bus-type", - .data_lanes = "data-lanes", - .remote_endpoint = "remote-endpoint", - .link_frequencies = "link-frequencies", -}; - -static void atomisp_csi2_create_fwnode_properties(struct atomisp_csi2_sensor *sensor, - struct atomisp_csi2_bridge *bridge, - const struct atomisp_csi2_sensor_config *cfg) +static int atomisp_csi2_parse_sensor_fwnode(struct acpi_device *adev, + struct ipu_sensor *sensor) { - sensor->prop_names = prop_names; + static const struct acpi_device_id dual_lane_sensors[] = { + { "INT33BE" }, /* OV5693 */ + {} + }; + int ret, clock_num, lanes; - sensor->local_ref[0] = SOFTWARE_NODE_REFERENCE(&sensor->swnodes[SWNODE_CSI2_ENDPOINT]); - sensor->remote_ref[0] = SOFTWARE_NODE_REFERENCE(&sensor->swnodes[SWNODE_SENSOR_ENDPOINT]); + /* + * ACPI takes care of turning the PMC clock on and off, but on BYT + * the clock defaults to 25 MHz instead of the expected 19.2 MHz. + * Get the PMC-clock number from ACPI PR0 method and set it to 19.2 MHz. + * The PMC-clock number is also used to determine the default CSI port. + */ + clock_num = atomisp_csi2_get_pmc_clk_nr_from_acpi_pr0(adev); - sensor->dev_properties[0] = PROPERTY_ENTRY_U32(sensor->prop_names.clock_frequency, - PMC_CLK_RATE_19_2MHZ); - sensor->dev_properties[1] = PROPERTY_ENTRY_U32(sensor->prop_names.rotation, 0); + ret = atomisp_csi2_set_pmc_clk_freq(adev, clock_num); + if (ret) + return ret; - sensor->ep_properties[0] = PROPERTY_ENTRY_U32(sensor->prop_names.bus_type, - V4L2_FWNODE_BUS_TYPE_CSI2_DPHY); - sensor->ep_properties[1] = PROPERTY_ENTRY_U32_ARRAY_LEN(sensor->prop_names.data_lanes, - bridge->data_lanes, - sensor->lanes); - sensor->ep_properties[2] = PROPERTY_ENTRY_REF_ARRAY(sensor->prop_names.remote_endpoint, - sensor->local_ref); - if (cfg->nr_link_freqs > 0) - sensor->ep_properties[3] = - PROPERTY_ENTRY_U64_ARRAY_LEN(sensor->prop_names.link_frequencies, - cfg->link_freqs, cfg->nr_link_freqs); - - sensor->csi2_properties[0] = PROPERTY_ENTRY_U32_ARRAY_LEN(sensor->prop_names.data_lanes, - bridge->data_lanes, - sensor->lanes); - sensor->csi2_properties[1] = PROPERTY_ENTRY_REF_ARRAY(sensor->prop_names.remote_endpoint, - sensor->remote_ref); -} - -static void atomisp_csi2_init_swnode_names(struct atomisp_csi2_sensor *sensor) -{ - snprintf(sensor->node_names.remote_port, - sizeof(sensor->node_names.remote_port), - SWNODE_GRAPH_PORT_NAME_FMT, sensor->port); - snprintf(sensor->node_names.port, - sizeof(sensor->node_names.port), - SWNODE_GRAPH_PORT_NAME_FMT, 0); /* Always port 0 */ - snprintf(sensor->node_names.endpoint, - sizeof(sensor->node_names.endpoint), - SWNODE_GRAPH_ENDPOINT_NAME_FMT, 0); /* And endpoint 0 */ -} - -static void atomisp_csi2_init_swnode_group(struct atomisp_csi2_sensor *sensor) -{ - struct software_node *nodes = sensor->swnodes; - - sensor->group[SWNODE_SENSOR] = &nodes[SWNODE_SENSOR]; - sensor->group[SWNODE_SENSOR_PORT] = &nodes[SWNODE_SENSOR_PORT]; - sensor->group[SWNODE_SENSOR_ENDPOINT] = &nodes[SWNODE_SENSOR_ENDPOINT]; - sensor->group[SWNODE_CSI2_PORT] = &nodes[SWNODE_CSI2_PORT]; - sensor->group[SWNODE_CSI2_ENDPOINT] = &nodes[SWNODE_CSI2_ENDPOINT]; -} - -static void atomisp_csi2_create_connection_swnodes(struct atomisp_csi2_bridge *bridge, - struct atomisp_csi2_sensor *sensor) -{ - struct software_node *nodes = sensor->swnodes; - - atomisp_csi2_init_swnode_names(sensor); - - nodes[SWNODE_SENSOR] = NODE_SENSOR(sensor->name, - sensor->dev_properties); - nodes[SWNODE_SENSOR_PORT] = NODE_PORT(sensor->node_names.port, - &nodes[SWNODE_SENSOR]); - nodes[SWNODE_SENSOR_ENDPOINT] = NODE_ENDPOINT(sensor->node_names.endpoint, - &nodes[SWNODE_SENSOR_PORT], - sensor->ep_properties); - nodes[SWNODE_CSI2_PORT] = NODE_PORT(sensor->node_names.remote_port, - &bridge->csi2_node); - nodes[SWNODE_CSI2_ENDPOINT] = NODE_ENDPOINT(sensor->node_names.endpoint, - &nodes[SWNODE_CSI2_PORT], - sensor->csi2_properties); - - atomisp_csi2_init_swnode_group(sensor); -} - -static void atomisp_csi2_unregister_sensors(struct atomisp_csi2_bridge *bridge) -{ - struct atomisp_csi2_sensor *sensor; - unsigned int i; - - for (i = 0; i < bridge->n_sensors; i++) { - sensor = &bridge->sensors[i]; - software_node_unregister_node_group(sensor->group); - acpi_dev_remove_driver_gpios(sensor->adev); - acpi_dev_put(sensor->adev); + sensor->link = atomisp_csi2_get_port(adev, clock_num); + if (sensor->link >= ATOMISP_CAMERA_NR_PORTS) { + dev_err(&adev->dev, "Invalid port: %u\n", sensor->link); + return -EINVAL; } -} -static int atomisp_csi2_connect_sensor(const struct atomisp_csi2_sensor_config *cfg, - struct atomisp_csi2_bridge *bridge, - struct atomisp_device *isp) -{ - struct fwnode_handle *fwnode, *primary; - struct atomisp_csi2_sensor *sensor; - struct acpi_device *adev; - int ret, clock_num; + if (!acpi_match_device_ids(adev, dual_lane_sensors)) + lanes = 2; + else + lanes = 1; - for_each_acpi_dev_match(adev, cfg->hid, NULL, -1) { - if (!adev->status.enabled) - continue; - - if (bridge->n_sensors >= ATOMISP_CAMERA_NR_PORTS) { - dev_err(isp->dev, "Exceeded available CSI2 ports\n"); - ret = -EOVERFLOW; - goto err_put_adev; - } - - sensor = &bridge->sensors[bridge->n_sensors]; - - /* - * ACPI takes care of turning the PMC clock on and off, but on BYT - * the clock defaults to 25 MHz instead of the expected 19.2 MHz. - * Get the PMC-clock number from ACPI _PR0 method and set it to 19.2 MHz. - * The PMC-clock number is also used to determine the default CSI port. - */ - clock_num = atomisp_csi2_get_pmc_clk_nr_from_acpi_pr0(adev); - - ret = atomisp_csi2_set_pmc_clk_freq(adev, clock_num); - if (ret) - goto err_put_adev; - - sensor->port = atomisp_csi2_get_port(adev, clock_num); - if (sensor->port >= ATOMISP_CAMERA_NR_PORTS) { - acpi_handle_err(adev->handle, "Invalid port: %d\n", sensor->port); - ret = -EINVAL; - goto err_put_adev; - } - - sensor->lanes = gmin_cfg_get_int(adev, "CsiLanes", cfg->lanes); - if (sensor->lanes > CSI2_MAX_LANES) { - acpi_handle_err(adev->handle, "Invalid number of lanes: %d\n", sensor->lanes); - ret = -EINVAL; - goto err_put_adev; - } - - ret = atomisp_csi2_add_gpio_mappings(sensor, adev); - if (ret) - goto err_put_adev; - - snprintf(sensor->name, sizeof(sensor->name), "%s-%u", - cfg->hid, sensor->port); - - atomisp_csi2_create_fwnode_properties(sensor, bridge, cfg); - atomisp_csi2_create_connection_swnodes(bridge, sensor); - - ret = software_node_register_node_group(sensor->group); - if (ret) - goto err_remove_mappings; - - fwnode = software_node_fwnode(&sensor->swnodes[SWNODE_SENSOR]); - if (!fwnode) { - ret = -ENODEV; - goto err_free_swnodes; - } - - sensor->adev = acpi_dev_get(adev); - - primary = acpi_fwnode_handle(adev); - primary->secondary = fwnode; - - bridge->n_sensors++; + sensor->lanes = gmin_cfg_get_int(adev, "CsiLanes", lanes); + if (sensor->lanes > IPU_MAX_LANES) { + dev_err(&adev->dev, "Invalid lane-count: %d\n", sensor->lanes); + return -EINVAL; } + ret = atomisp_csi2_add_gpio_mappings(adev); + if (ret) + return ret; + + sensor->mclkspeed = PMC_CLK_RATE_19_2MHZ; + sensor->rotation = 0; + sensor->orientation = V4L2_FWNODE_ORIENTATION_EXTERNAL; + return 0; - -err_free_swnodes: - software_node_unregister_node_group(sensor->group); -err_remove_mappings: - acpi_dev_remove_driver_gpios(adev); -err_put_adev: - acpi_dev_put(adev); - return ret; -} - -static int atomisp_csi2_connect_sensors(struct atomisp_csi2_bridge *bridge, - struct atomisp_device *isp) -{ - unsigned int i; - int ret; - - for (i = 0; i < ARRAY_SIZE(supported_sensors); i++) { - const struct atomisp_csi2_sensor_config *cfg = &supported_sensors[i]; - - ret = atomisp_csi2_connect_sensor(cfg, bridge, isp); - if (ret) - goto err_unregister_sensors; - } - - return 0; - -err_unregister_sensors: - atomisp_csi2_unregister_sensors(bridge); - return ret; } int atomisp_csi2_bridge_init(struct atomisp_device *isp) { - struct atomisp_csi2_bridge *bridge; struct device *dev = isp->dev; struct fwnode_handle *fwnode; - int i, ret; /* * This function is intended to run only once and then leave @@ -716,52 +525,7 @@ int atomisp_csi2_bridge_init(struct atomisp_device *isp) if (fwnode && fwnode->secondary) return 0; - bridge = kzalloc(sizeof(*bridge), GFP_KERNEL); - if (!bridge) - return -ENOMEM; - - strscpy(bridge->csi2_node_name, "atomisp-csi2", sizeof(bridge->csi2_node_name)); - bridge->csi2_node.name = bridge->csi2_node_name; - - ret = software_node_register(&bridge->csi2_node); - if (ret < 0) { - dev_err(dev, "Failed to register the CSI2 HID node\n"); - goto err_free_bridge; - } - - /* - * Map the lane arrangement, which is fixed for the ISP2 (meaning we - * only need one, rather than one per sensor). We include it as a - * member of the bridge struct rather than a global variable so - * that it survives if the module is unloaded along with the rest of - * the struct. - */ - for (i = 0; i < CSI2_MAX_LANES; i++) - bridge->data_lanes[i] = i + 1; - - ret = atomisp_csi2_connect_sensors(bridge, isp); - if (ret || bridge->n_sensors == 0) - goto err_unregister_csi2; - - fwnode = software_node_fwnode(&bridge->csi2_node); - if (!fwnode) { - dev_err(dev, "Error getting fwnode from csi2 software_node\n"); - ret = -ENODEV; - goto err_unregister_sensors; - } - - set_secondary_fwnode(dev, fwnode); - - return 0; - -err_unregister_sensors: - atomisp_csi2_unregister_sensors(bridge); -err_unregister_csi2: - software_node_unregister(&bridge->csi2_node); -err_free_bridge: - kfree(bridge); - - return ret; + return ipu_bridge_init(dev, atomisp_csi2_parse_sensor_fwnode); } /******* V4L2 sub-device asynchronous registration callbacks***********/ diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c index c43b916a006e..0d80f0893a2e 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c +++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c @@ -1615,3 +1615,4 @@ MODULE_AUTHOR("Wen Wang "); MODULE_AUTHOR("Xiaolin Zhang "); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Intel ATOM Platform ISP Driver"); +MODULE_IMPORT_NS(INTEL_IPU_BRIDGE);