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Message-Id: <20230619114007.297393-5-tomi.valkeinen@ideasonboard.com>
Date: Mon, 19 Jun 2023 14:40:07 +0300
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Jacopo Mondi <jacopo.mondi@...asonboard.com>,
Jai Luthra <j-luthra@...com>,
Vaishnav Achath <vaishnav.a@...com>
Cc: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Subject: [PATCH v4 4/4] media: ti: cal: Implement get_frame_desc for camera-rx
CAL uses get_frame_desc to get the VC and DT for the incoming CSI-2
stream, but does it in a bit hacky way. Clean this up by implementing
.get_frame_desc to camera-rx, and calling that from cal.c.
No functional change intended.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@...asonboard.com>
---
drivers/media/platform/ti/cal/cal-camerarx.c | 62 +++++++++++---------
drivers/media/platform/ti/cal/cal.c | 30 ++++------
drivers/media/platform/ti/cal/cal.h | 2 -
3 files changed, 47 insertions(+), 47 deletions(-)
diff --git a/drivers/media/platform/ti/cal/cal-camerarx.c b/drivers/media/platform/ti/cal/cal-camerarx.c
index bc09c3f1446d..1a4273bbe752 100644
--- a/drivers/media/platform/ti/cal/cal-camerarx.c
+++ b/drivers/media/platform/ti/cal/cal-camerarx.c
@@ -589,33 +589,6 @@ static int cal_camerarx_parse_dt(struct cal_camerarx *phy)
return ret;
}
-int cal_camerarx_get_remote_frame_desc(struct cal_camerarx *phy,
- struct v4l2_mbus_frame_desc *desc)
-{
- struct media_pad *pad;
- int ret;
-
- if (!phy->source)
- return -EPIPE;
-
- pad = media_pad_remote_pad_first(&phy->pads[CAL_CAMERARX_PAD_SINK]);
- if (!pad)
- return -EPIPE;
-
- ret = v4l2_subdev_call(phy->source, pad, get_frame_desc, pad->index,
- desc);
- if (ret)
- return ret;
-
- if (desc->type != V4L2_MBUS_FRAME_DESC_TYPE_CSI2) {
- dev_err(phy->cal->dev,
- "Frame descriptor does not describe CSI-2 link");
- return -EINVAL;
- }
-
- return 0;
-}
-
/* ------------------------------------------------------------------
* V4L2 Subdev Operations
* ------------------------------------------------------------------
@@ -772,6 +745,40 @@ static int cal_camerarx_sd_init_cfg(struct v4l2_subdev *sd,
return cal_camerarx_sd_set_fmt(sd, state, &format);
}
+static int cal_camerarx_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+ struct v4l2_mbus_frame_desc *fd)
+{
+ struct cal_camerarx *phy = to_cal_camerarx(sd);
+ struct v4l2_mbus_frame_desc remote_desc;
+ const struct media_pad *remote_pad;
+ int ret;
+
+ remote_pad = media_pad_remote_pad_first(&phy->pads[CAL_CAMERARX_PAD_SINK]);
+ if (!remote_pad)
+ return -EPIPE;
+
+ ret = v4l2_subdev_call(phy->source, pad, get_frame_desc,
+ remote_pad->index, &remote_desc);
+ if (ret)
+ return ret;
+
+ if (remote_desc.type != V4L2_MBUS_FRAME_DESC_TYPE_CSI2) {
+ cal_err(phy->cal,
+ "Frame descriptor does not describe CSI-2 link");
+ return -EINVAL;
+ }
+
+ if (remote_desc.num_entries > 1)
+ cal_err(phy->cal,
+ "Multiple streams not supported in remote frame descriptor, using the first one\n");
+
+ fd->type = V4L2_MBUS_FRAME_DESC_TYPE_CSI2;
+ fd->num_entries = 1;
+ fd->entry[0] = remote_desc.entry[0];
+
+ return 0;
+}
+
static const struct v4l2_subdev_video_ops cal_camerarx_video_ops = {
.s_stream = cal_camerarx_sd_s_stream,
};
@@ -782,6 +789,7 @@ static const struct v4l2_subdev_pad_ops cal_camerarx_pad_ops = {
.enum_frame_size = cal_camerarx_sd_enum_frame_size,
.get_fmt = v4l2_subdev_get_fmt,
.set_fmt = cal_camerarx_sd_set_fmt,
+ .get_frame_desc = cal_camerarx_get_frame_desc,
};
static const struct v4l2_subdev_ops cal_camerarx_subdev_ops = {
diff --git a/drivers/media/platform/ti/cal/cal.c b/drivers/media/platform/ti/cal/cal.c
index 18d86f6ae809..3c74e461fc50 100644
--- a/drivers/media/platform/ti/cal/cal.c
+++ b/drivers/media/platform/ti/cal/cal.c
@@ -446,30 +446,24 @@ static bool cal_ctx_wr_dma_stopped(struct cal_ctx *ctx)
}
static int
-cal_get_remote_frame_desc_entry(struct cal_camerarx *phy,
+cal_get_remote_frame_desc_entry(struct cal_ctx *ctx,
struct v4l2_mbus_frame_desc_entry *entry)
{
struct v4l2_mbus_frame_desc fd;
+ struct media_pad *phy_source_pad;
int ret;
- ret = cal_camerarx_get_remote_frame_desc(phy, &fd);
- if (ret) {
- if (ret != -ENOIOCTLCMD)
- dev_err(phy->cal->dev,
- "Failed to get remote frame desc: %d\n", ret);
- return ret;
- }
-
- if (fd.num_entries == 0) {
- dev_err(phy->cal->dev,
- "No streams found in the remote frame descriptor\n");
-
+ phy_source_pad = media_pad_remote_pad_first(&ctx->pad);
+ if (!phy_source_pad)
return -ENODEV;
- }
- if (fd.num_entries > 1)
- dev_dbg(phy->cal->dev,
- "Multiple streams not supported in remote frame descriptor, using the first one\n");
+ ret = v4l2_subdev_call(&ctx->phy->subdev, pad, get_frame_desc,
+ phy_source_pad->index, &fd);
+ if (ret)
+ return ret;
+
+ if (fd.num_entries != 1)
+ return -EINVAL;
*entry = fd.entry[0];
@@ -481,7 +475,7 @@ int cal_ctx_prepare(struct cal_ctx *ctx)
struct v4l2_mbus_frame_desc_entry entry;
int ret;
- ret = cal_get_remote_frame_desc_entry(ctx->phy, &entry);
+ ret = cal_get_remote_frame_desc_entry(ctx, &entry);
if (ret == -ENOIOCTLCMD) {
ctx->vc = 0;
diff --git a/drivers/media/platform/ti/cal/cal.h b/drivers/media/platform/ti/cal/cal.h
index 55d4736fed18..0856297adc0b 100644
--- a/drivers/media/platform/ti/cal/cal.h
+++ b/drivers/media/platform/ti/cal/cal.h
@@ -319,8 +319,6 @@ const struct cal_format_info *cal_format_by_code(u32 code);
void cal_quickdump_regs(struct cal_dev *cal);
-int cal_camerarx_get_remote_frame_desc(struct cal_camerarx *phy,
- struct v4l2_mbus_frame_desc *desc);
void cal_camerarx_disable(struct cal_camerarx *phy);
void cal_camerarx_i913_errata(struct cal_camerarx *phy);
struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal,
--
2.34.1
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