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Commit 02533540 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Kieran Bingham
Browse files

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: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: default avatarKieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: default avatarKieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: default avatarMauro Cavalho Chehab <mchehab@s-opensource.com>
parent 8c71a1a3

drivers/media/platform/rcar-fcp.c

+6 −0
Original line number Diff line number Diff line
@@ -78,6 +78,12 @@ void rcar_fcp_put(struct rcar_fcp_device *fcp) 
}

EXPORT_SYMBOL_GPL(rcar_fcp_put);



struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp)

{

	return fcp->dev;

}

EXPORT_SYMBOL_GPL(rcar_fcp_get_device);



/**

 * rcar_fcp_enable - Enable an FCP

 * @fcp: The FCP instance

include/media/rcar-fcp.h

+5 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ struct rcar_fcp_device; 
#if IS_ENABLED(CONFIG_VIDEO_RENESAS_FCP)

struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np);

void rcar_fcp_put(struct rcar_fcp_device *fcp);

struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp);

int rcar_fcp_enable(struct rcar_fcp_device *fcp);

void rcar_fcp_disable(struct rcar_fcp_device *fcp);

#else
@@ -27,6 +28,10 @@ static inline struct rcar_fcp_device *rcar_fcp_get(const struct device_node *np) 
	return ERR_PTR(-ENOENT);

}

static inline void rcar_fcp_put(struct rcar_fcp_device *fcp) { }

static inline struct device *rcar_fcp_get_device(struct rcar_fcp_device *fcp)

{

	return NULL;

}

static inline int rcar_fcp_enable(struct rcar_fcp_device *fcp)

{

	return 0;