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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2017-05-17 02:20:04 +0300 |
|---|---|---|
| committer | Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> | 2017-06-09 12:25:36 +0100 |
| commit | 02533540ef8a54840a41843b8852755a543318e6 (patch) | |
| tree | d68b079f0cdb70ead2ed51fe9491f490cae42d7c | |
| parent | 8c71a1a318385ba2354fa7e8adf3d42678edd766 (diff) | |
| download | linux-02533540ef8a54840a41843b8852755a543318e6.tar.bz2 | |
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>
| -rw-r--r-- | drivers/media/platform/rcar-fcp.c | 6 | ||||
| -rw-r--r-- | include/media/rcar-fcp.h | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/media/platform/rcar-fcp.c b/drivers/media/platform/rcar-fcp.c index e9f609edf513..2988031d285d 100644 --- a/drivers/media/platform/rcar-fcp.c +++ b/drivers/media/platform/rcar-fcp.c @@ -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 diff --git a/include/media/rcar-fcp.h b/include/media/rcar-fcp.h index 8723f05c6321..b60a7b176c37 100644 --- a/include/media/rcar-fcp.h +++ b/include/media/rcar-fcp.h @@ -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; |