v4l: rcar-fcp: Add an API to retrieve the FCP device
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>
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2 changed files with 11 additions and 0 deletions
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@ -78,6 +78,12 @@ void rcar_fcp_put(struct rcar_fcp_device *fcp)
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}
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}
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EXPORT_SYMBOL_GPL(rcar_fcp_put);
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EXPORT_SYMBOL_GPL(rcar_fcp_put);
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struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp)
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{
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return fcp->dev;
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}
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EXPORT_SYMBOL_GPL(rcar_fcp_get_device);
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/**
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/**
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* rcar_fcp_enable - Enable an FCP
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* rcar_fcp_enable - Enable an FCP
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* @fcp: The FCP instance
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* @fcp: The FCP instance
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@ -19,6 +19,7 @@ struct rcar_fcp_device;
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#if IS_ENABLED(CONFIG_VIDEO_RENESAS_FCP)
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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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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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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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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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void rcar_fcp_disable(struct rcar_fcp_device *fcp);
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#else
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#else
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@ -27,6 +28,10 @@ static inline struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np)
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return ERR_PTR(-ENOENT);
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return ERR_PTR(-ENOENT);
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}
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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 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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static inline int rcar_fcp_enable(struct rcar_fcp_device *fcp)
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{
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{
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return 0;
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return 0;
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