02533540ef
The new rcar_fcp_get_device() function retrieves the struct device related to the FCP device. This is useful to handle DMA mapping through the right device. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Acked-by: Mauro Cavalho Chehab <mchehab@s-opensource.com>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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* rcar-fcp.h -- R-Car Frame Compression Processor Driver
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*
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* Copyright (C) 2016 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __MEDIA_RCAR_FCP_H__
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#define __MEDIA_RCAR_FCP_H__
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struct device_node;
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struct rcar_fcp_device;
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#if IS_ENABLED(CONFIG_VIDEO_RENESAS_FCP)
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struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np);
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void rcar_fcp_put(struct rcar_fcp_device *fcp);
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struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp);
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int rcar_fcp_enable(struct rcar_fcp_device *fcp);
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void rcar_fcp_disable(struct rcar_fcp_device *fcp);
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#else
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static inline struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np)
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{
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return ERR_PTR(-ENOENT);
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}
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static inline void rcar_fcp_put(struct rcar_fcp_device *fcp) { }
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static inline struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp)
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{
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return NULL;
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}
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static inline int rcar_fcp_enable(struct rcar_fcp_device *fcp)
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{
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return 0;
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}
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static inline void rcar_fcp_disable(struct rcar_fcp_device *fcp) { }
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#endif
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#endif /* __MEDIA_RCAR_FCP_H__ */
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