kernel
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Samsung S5P/EXYNOS4 SoC Camera Subsystem driver
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
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*/
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#include <linux/module.h>
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#include <media/drv-intf/exynos-fimc.h>
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#include "common.h"
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/*
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* Called with the media graph mutex held or media_entity_is_streaming(entity)
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* true.
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*/
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struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity)
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{
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struct media_pad *pad = &entity->pads[0];
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struct v4l2_subdev *sd;
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while (pad->flags & MEDIA_PAD_FL_SINK) {
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/* source pad */
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pad = media_pad_remote_pad_first(pad);
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if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
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break;
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sd = media_entity_to_v4l2_subdev(pad->entity);
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if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR ||
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sd->grp_id == GRP_ID_SENSOR)
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return sd;
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/* sink pad */
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pad = &sd->entity.pads[0];
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}
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return NULL;
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}
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EXPORT_SYMBOL(fimc_find_remote_sensor);
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void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap)
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{
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strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
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strscpy(cap->card, dev->driver->name, sizeof(cap->card));
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}
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EXPORT_SYMBOL(__fimc_vidioc_querycap);
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MODULE_LICENSE("GPL");
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