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From: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
To: Jacopo Mondi <jacopo.mondi@ideasonboard.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
	Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-media@vger.kernel.org, linux-staging@lists.linux.dev
Cc: linux-renesas-soc@vger.kernel.org,
	"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Subject: [PATCH] media: staging: max96712: Store format in subdev active state
Date: Fri, 10 May 2024 12:03:47 +0200	[thread overview]
Message-ID: <20240510100347.102392-1-niklas.soderlund+renesas@ragnatech.se> (raw)

Create and store the subdevice format in the subdevices active state.
This change do not have a huge effect on the driver as it do not yet
support changing the format.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
Hello,

This change is mostly to align all driver used in the R-Car VIN pipeline
to use the same set of API and to make it easier to extend them in
tandem going forward.

This should be seen as a compliment to Jacopo's larger work in "[PATCH
v3 00/11] media: renesas: rcar-csi2: Use the subdev active state" which
updates other drivers in the VIN pipeline to use the active state.
---
 drivers/staging/media/max96712/max96712.c | 36 +++++++++++++++++------
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/max96712/max96712.c b/drivers/staging/media/max96712/max96712.c
index c44145284aa1..2da65ccd2c57 100644
--- a/drivers/staging/media/max96712/max96712.c
+++ b/drivers/staging/media/max96712/max96712.c
@@ -242,21 +242,34 @@ static const struct v4l2_subdev_video_ops max96712_video_ops = {
 	.s_stream = max96712_s_stream,
 };
 
-static int max96712_get_pad_format(struct v4l2_subdev *sd,
-				   struct v4l2_subdev_state *sd_state,
-				   struct v4l2_subdev_format *format)
+static int max96712_init_state(struct v4l2_subdev *sd,
+			       struct v4l2_subdev_state *state)
 {
-	format->format.width = 1920;
-	format->format.height = 1080;
-	format->format.code = MEDIA_BUS_FMT_RGB888_1X24;
-	format->format.field = V4L2_FIELD_NONE;
+	static const struct v4l2_mbus_framefmt default_fmt = {
+		.width          = 1920,
+		.height         = 1080,
+		.code           = MEDIA_BUS_FMT_RGB888_1X24,
+		.colorspace     = V4L2_COLORSPACE_SRGB,
+		.field          = V4L2_FIELD_NONE,
+		.ycbcr_enc      = V4L2_YCBCR_ENC_DEFAULT,
+		.quantization   = V4L2_QUANTIZATION_DEFAULT,
+		.xfer_func      = V4L2_XFER_FUNC_DEFAULT,
+	};
+	struct v4l2_mbus_framefmt *fmt;
+
+	fmt = v4l2_subdev_state_get_format(state, 0);
+	*fmt = default_fmt;
 
 	return 0;
 }
 
+static const struct v4l2_subdev_internal_ops max96712_internal_ops = {
+	.init_state = max96712_init_state,
+};
+
 static const struct v4l2_subdev_pad_ops max96712_pad_ops = {
-	.get_fmt = max96712_get_pad_format,
-	.set_fmt = max96712_get_pad_format,
+	.get_fmt = v4l2_subdev_get_fmt,
+	.set_fmt = v4l2_subdev_get_fmt,
 };
 
 static const struct v4l2_subdev_ops max96712_subdev_ops = {
@@ -293,6 +306,7 @@ static int max96712_v4l2_register(struct max96712_priv *priv)
 	long pixel_rate;
 	int ret;
 
+	priv->sd.internal_ops = &max96712_internal_ops;
 	v4l2_i2c_subdev_init(&priv->sd, priv->client, &max96712_subdev_ops);
 	priv->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	priv->sd.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
@@ -324,6 +338,10 @@ static int max96712_v4l2_register(struct max96712_priv *priv)
 
 	v4l2_set_subdevdata(&priv->sd, priv);
 
+	ret = v4l2_subdev_init_finalize(&priv->sd);
+	if (ret)
+		goto error;
+
 	ret = v4l2_async_register_subdev(&priv->sd);
 	if (ret < 0) {
 		dev_err(&priv->client->dev, "Unable to register subdevice\n");
-- 
2.45.0


             reply	other threads:[~2024-05-10 10:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-10 10:03 Niklas Söderlund [this message]
2024-05-10 10:13 ` [PATCH] media: staging: max96712: Store format in subdev active state Laurent Pinchart
2024-05-10 10:36   ` Niklas Söderlund
2024-05-10 15:27     ` Laurent Pinchart
2024-05-10 15:55       ` Niklas Söderlund

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