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This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
129 lines
3.8 KiB
Diff
129 lines
3.8 KiB
Diff
From 06cd9857f8faa63321506a75988c475906a32970 Mon Sep 17 00:00:00 2001
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From: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Date: Wed, 20 Mar 2019 12:54:47 +0000
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Subject: [PATCH] media: bcm2835: unicam: add media controller support
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Add a media controller device node to represent the Unicam device.
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The attached sensor will be automatically added to the media graph by
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V4L2 core.
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Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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---
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drivers/media/platform/bcm2835/Kconfig | 2 +-
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.../media/platform/bcm2835/bcm2835-unicam.c | 46 ++++++++++++++++++-
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2 files changed, 45 insertions(+), 3 deletions(-)
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--- a/drivers/media/platform/bcm2835/Kconfig
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+++ b/drivers/media/platform/bcm2835/Kconfig
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@@ -2,7 +2,7 @@
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config VIDEO_BCM2835_UNICAM
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tristate "Broadcom BCM2835 Unicam video capture driver"
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- depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
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+ depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && MEDIA_CONTROLLER
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depends on ARCH_BCM2835 || COMPILE_TEST
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_FWNODE
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--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
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+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
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@@ -314,6 +314,9 @@ struct unicam_device {
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struct clk *clock;
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/* V4l2 device */
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struct v4l2_device v4l2_dev;
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+ struct media_device mdev;
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+ struct media_pad pad;
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+
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/* parent device */
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struct platform_device *pdev;
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/* subdevice async Notifier */
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@@ -1912,6 +1915,8 @@ static int unicam_probe_complete(struct
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unicam->v4l2_dev.ctrl_handler = NULL;
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video_set_drvdata(vdev, unicam);
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+ vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
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+
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ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
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if (ret) {
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unicam_err(unicam, "Unable to register video device.\n");
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@@ -1953,6 +1958,16 @@ static int unicam_probe_complete(struct
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return ret;
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}
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+ ret = media_create_pad_link(&unicam->sensor->entity, 0,
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+ &unicam->video_dev.entity, 0,
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+ MEDIA_LNK_FL_ENABLED |
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+ MEDIA_LNK_FL_IMMUTABLE);
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+ if (ret) {
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+ unicam_err(unicam, "Unable to create pad links.\n");
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+ video_unregister_device(&unicam->video_dev);
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+ return ret;
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+ }
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+
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return 0;
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}
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@@ -2155,18 +2170,38 @@ static int unicam_probe(struct platform_
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return -EINVAL;
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}
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+ unicam->mdev.dev = &pdev->dev;
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+ strscpy(unicam->mdev.model, UNICAM_MODULE_NAME,
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+ sizeof(unicam->mdev.model));
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+ strscpy(unicam->mdev.serial, "", sizeof(unicam->mdev.serial));
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+ snprintf(unicam->mdev.bus_info, sizeof(unicam->mdev.bus_info),
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+ "platform:%s", pdev->name);
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+ unicam->mdev.hw_revision = 1;
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+
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+ media_entity_pads_init(&unicam->video_dev.entity, 1, &unicam->pad);
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+ media_device_init(&unicam->mdev);
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+
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+ unicam->v4l2_dev.mdev = &unicam->mdev;
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+
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ret = v4l2_device_register(&pdev->dev, &unicam->v4l2_dev);
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if (ret) {
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unicam_err(unicam,
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"Unable to register v4l2 device.\n");
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- return ret;
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+ goto media_cleanup;
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+ }
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+
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+ ret = media_device_register(&unicam->mdev);
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+ if (ret < 0) {
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+ unicam_err(unicam,
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+ "Unable to register media-controller device.\n");
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+ goto probe_out_v4l2_unregister;
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}
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/* Reserve space for the controls */
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hdl = &unicam->ctrl_handler;
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ret = v4l2_ctrl_handler_init(hdl, 16);
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if (ret < 0)
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- goto probe_out_v4l2_unregister;
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+ goto media_unregister;
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unicam->v4l2_dev.ctrl_handler = hdl;
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/* set the driver data in platform device */
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@@ -2185,8 +2220,13 @@ static int unicam_probe(struct platform_
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free_hdl:
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v4l2_ctrl_handler_free(hdl);
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+media_unregister:
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+ media_device_unregister(&unicam->mdev);
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probe_out_v4l2_unregister:
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v4l2_device_unregister(&unicam->v4l2_dev);
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+media_cleanup:
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+ media_device_cleanup(&unicam->mdev);
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+
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return ret;
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}
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@@ -2204,6 +2244,8 @@ static int unicam_remove(struct platform
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video_unregister_device(&unicam->video_dev);
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if (unicam->sensor_config)
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v4l2_subdev_free_pad_config(unicam->sensor_config);
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+ media_device_unregister(&unicam->mdev);
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+ media_device_cleanup(&unicam->mdev);
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return 0;
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}
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