From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp-4.sys.kth.se ([130.237.48.193]:33624 "EHLO smtp-4.sys.kth.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966096AbcKLNNy (ORCPT ); Sat, 12 Nov 2016 08:13:54 -0500 From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: Laurent Pinchart , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, tomoharu.fukawa.eb@renesas.com, Sakari Ailus , Geert Uytterhoeven , =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCHv2 26/32] media: rcar-vin: add helpers for bridge Date: Sat, 12 Nov 2016 14:12:10 +0100 Message-Id: <20161112131216.22635-27-niklas.soderlund+renesas@ragnatech.se> In-Reply-To: <20161112131216.22635-1-niklas.soderlund+renesas@ragnatech.se> References: <20161112131216.22635-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org List-ID: On Gen3 there might be a CSI2 bridge between the video source and the VIN. Add helpers to check for this and to fetch the bridge subdevice. Signed-off-by: Niklas Söderlund --- drivers/media/platform/rcar-vin/rcar-core.c | 19 +++++++++++++++++++ drivers/media/platform/rcar-vin/rcar-vin.h | 2 ++ 2 files changed, 21 insertions(+) diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c index 0b3882a..1efbb0a 100644 --- a/drivers/media/platform/rcar-vin/rcar-core.c +++ b/drivers/media/platform/rcar-vin/rcar-core.c @@ -373,6 +373,11 @@ static int rvin_group_vin_to_csi(struct rvin_dev *vin) return csi; } +bool vin_have_bridge(struct rvin_dev *vin) +{ + return vin->digital.subdev == NULL; +} + struct rvin_graph_entity *vin_to_entity(struct rvin_dev *vin) { int csi; @@ -403,6 +408,20 @@ struct v4l2_subdev *vin_to_source(struct rvin_dev *vin) return vin->group->source[csi].subdev; } +struct v4l2_subdev *vin_to_bridge(struct rvin_dev *vin) +{ + int csi; + + if (vin->digital.subdev) + return NULL; + + csi = rvin_group_vin_to_csi(vin); + if (csi < 0) + return NULL; + + return vin->group->bridge[csi].subdev; +} + /* ----------------------------------------------------------------------------- * Async notifier helpers */ diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h index 2f1e087..acaed2b 100644 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ b/drivers/media/platform/rcar-vin/rcar-vin.h @@ -206,8 +206,10 @@ struct rvin_dev { struct v4l2_rect compose; }; +bool vin_have_bridge(struct rvin_dev *vin); struct rvin_graph_entity *vin_to_entity(struct rvin_dev *vin); struct v4l2_subdev *vin_to_source(struct rvin_dev *vin); +struct v4l2_subdev *vin_to_bridge(struct rvin_dev *vin); /* Debug */ #define vin_dbg(d, fmt, arg...) dev_dbg(d->dev, fmt, ##arg) -- 2.10.2