linux-kernel - [PATCH v5 08/11] media: imx219: Switch from open to init

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Message-Id: <20220208155027.891055-9-jeanmichel.hautbois@ideasonboard.com>
Date:   Tue,  8 Feb 2022 16:50:24 +0100
From:   Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>
To:     jeanmichel.hautbois@...asonboard.com
Cc:     dave.stevenson@...pberrypi.com, devicetree@...r.kernel.org,
        kernel-list@...pberrypi.com, laurent.pinchart@...asonboard.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        lukasz@...y.st, mchehab@...nel.org, naush@...pberrypi.com,
        robh@...nel.org, tomi.valkeinen@...asonboard.com,
        bcm-kernel-feedback-list@...adcom.com, stefan.wahren@...e.com
Subject: [PATCH v5 08/11] media: imx219: Switch from open to init_cfg

Use the init_cfg pad level operation instead of the internal subdev
open operation to set default formats on the pads.
While at it, make the imx219_pad_ops more easier to read.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>
---
 drivers/media/i2c/imx219.c | 63 +++++++++++++++-----------------------
 1 file changed, 25 insertions(+), 38 deletions(-)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 74dba5e61201..abcaee15c4a0 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -685,34 +685,6 @@ static void imx219_set_default_format(struct imx219 *imx219)
 	fmt->field = V4L2_FIELD_NONE;
 }
 
-static int imx219_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
-	struct imx219 *imx219 = to_imx219(sd);
-	struct v4l2_mbus_framefmt *try_fmt =
-		v4l2_subdev_get_try_format(sd, fh->state, 0);
-	struct v4l2_rect *try_crop;
-
-	mutex_lock(&imx219->mutex);
-
-	/* Initialize try_fmt */
-	try_fmt->width = supported_modes[0].width;
-	try_fmt->height = supported_modes[0].height;
-	try_fmt->code = imx219_get_format_code(imx219,
-					       MEDIA_BUS_FMT_SRGGB10_1X10);
-	try_fmt->field = V4L2_FIELD_NONE;
-
-	/* Initialize try_crop rectangle. */
-	try_crop = v4l2_subdev_get_try_crop(sd, fh->state, 0);
-	try_crop->top = IMX219_PIXEL_ARRAY_TOP;
-	try_crop->left = IMX219_PIXEL_ARRAY_LEFT;
-	try_crop->width = IMX219_PIXEL_ARRAY_WIDTH;
-	try_crop->height = IMX219_PIXEL_ARRAY_HEIGHT;
-
-	mutex_unlock(&imx219->mutex);
-
-	return 0;
-}
-
 static int imx219_set_ctrl(struct v4l2_ctrl *ctrl)
 {
 	struct imx219 *imx219 =
@@ -802,6 +774,25 @@ static const struct v4l2_ctrl_ops imx219_ctrl_ops = {
 	.s_ctrl = imx219_set_ctrl,
 };
 
+static void imx219_init_formats(struct v4l2_subdev_state *state)
+{
+	struct v4l2_mbus_framefmt *format;
+
+	format = v4l2_state_get_stream_format(state, 0, 0);
+	format->code = imx219_mbus_formats[0];
+	format->width = supported_modes[0].width;
+	format->height = supported_modes[0].height;
+	format->field = V4L2_FIELD_NONE;
+	format->colorspace = V4L2_COLORSPACE_RAW;
+}
+
+static int imx219_init_cfg(struct v4l2_subdev *sd,
+			   struct v4l2_subdev_state *state)
+{
+	imx219_init_formats(state);
+	return 0;
+}
+
 static int imx219_enum_mbus_code(struct v4l2_subdev *sd,
 				 struct v4l2_subdev_state *sd_state,
 				 struct v4l2_subdev_mbus_code_enum *code)
@@ -1255,11 +1246,12 @@ static const struct v4l2_subdev_video_ops imx219_video_ops = {
 };
 
 static const struct v4l2_subdev_pad_ops imx219_pad_ops = {
-	.enum_mbus_code = imx219_enum_mbus_code,
-	.get_fmt = imx219_get_pad_format,
-	.set_fmt = imx219_set_pad_format,
-	.get_selection = imx219_get_selection,
-	.enum_frame_size = imx219_enum_frame_size,
+	.init_cfg		= imx219_init_cfg,
+	.enum_mbus_code		= imx219_enum_mbus_code,
+	.get_fmt		= imx219_get_pad_format,
+	.set_fmt		= imx219_set_pad_format,
+	.get_selection		= imx219_get_selection,
+	.enum_frame_size	= imx219_enum_frame_size,
 };
 
 static const struct v4l2_subdev_ops imx219_subdev_ops = {
@@ -1268,10 +1260,6 @@ static const struct v4l2_subdev_ops imx219_subdev_ops = {
 	.pad = &imx219_pad_ops,
 };
 
-static const struct v4l2_subdev_internal_ops imx219_internal_ops = {
-	.open = imx219_open,
-};
-
 /* Initialize control handlers */
 static int imx219_init_controls(struct imx219 *imx219)
 {
@@ -1520,7 +1508,6 @@ static int imx219_probe(struct i2c_client *client)
 		goto error_power_off;
 
 	/* Initialize subdev */
-	imx219->sd.internal_ops = &imx219_internal_ops;
 	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
 			    V4L2_SUBDEV_FL_HAS_EVENTS;
 	imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
-- 
2.32.0