From 02533540ef8a54840a41843b8852755a543318e6 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 17 May 2017 02:20:04 +0300 Subject: [PATCH] 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 Reviewed-by: Kieran Bingham Signed-off-by: Kieran Bingham Acked-by: Mauro Cavalho Chehab --- drivers/media/platform/rcar-fcp.c | 6 ++++++ include/media/rcar-fcp.h | 5 +++++ 2 files changed, 11 insertions(+) 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; -- 2.20.1