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From: Jacopo Mondi <jacopo+renesas@jmondi.org>
To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl,
	sakari.ailus@linux.intel.com, laurent.pinchart@ideasonboard.com
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>,
	niklas.soderlund+renesas@ragnatech.se,
	kieran.bingham@ideasonboard.com, dave.stevenson@raspberrypi.com,
	hyun.kwon@xilinx.com, linux-media@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org
Subject: [PATCH v3 7/8] media: i2c: adv748x: Implement get_mbus_config
Date: Thu, 14 May 2020 18:45:39 +0200	[thread overview]
Message-ID: <20200514164540.507233-9-jacopo+renesas@jmondi.org> (raw)
In-Reply-To: <20200514164540.507233-1-jacopo+renesas@jmondi.org>

Implement the newly introduced get_mbus_config operation to report the
number of currently used data lanes on the MIPI CSI-2 interface.

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 drivers/media/i2c/adv748x/adv748x-csi2.c | 31 ++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
index 2091cda50935..99bb63d05eef 100644
--- a/drivers/media/i2c/adv748x/adv748x-csi2.c
+++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
@@ -214,9 +214,40 @@ static int adv748x_csi2_set_format(struct v4l2_subdev *sd,
 	return ret;
 }
 
+static int adv748x_csi2_get_mbus_config(struct v4l2_subdev *sd, unsigned int pad,
+					struct v4l2_mbus_config *config)
+{
+	struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
+
+	if (pad != ADV748X_CSI2_SOURCE)
+		return -EINVAL;
+
+	config->type = V4L2_MBUS_CSI2_DPHY;
+	switch (tx->active_lanes) {
+	case 1:
+		config->flags = V4L2_MBUS_CSI2_1_LANE;
+		break;
+
+	case 2:
+		config->flags = V4L2_MBUS_CSI2_2_LANE;
+		break;
+
+	case 3:
+		config->flags = V4L2_MBUS_CSI2_3_LANE;
+		break;
+
+	case 4:
+		config->flags = V4L2_MBUS_CSI2_4_LANE;
+		break;
+	}
+
+	return 0;
+}
+
 static const struct v4l2_subdev_pad_ops adv748x_csi2_pad_ops = {
 	.get_fmt = adv748x_csi2_get_format,
 	.set_fmt = adv748x_csi2_set_format,
+	.get_mbus_config = adv748x_csi2_get_mbus_config,
 };
 
 /* -----------------------------------------------------------------------------
-- 
2.26.2


  parent reply	other threads:[~2020-05-14 16:42 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-14 16:45 [PATCH v3 0/8] v4l2-subdev: Introduce [g|s]et_mbus_format pad op Jacopo Mondi
2020-05-14 16:45 ` [PATCH v3 1/8] media: v4l2-subdv: Introduce get_mbus_config " Jacopo Mondi
2020-05-14 16:45 ` [PATCH v3 1/8] media: v4l2-subdv: Introduce [s|g]et_mbus_config pad ops Jacopo Mondi
2020-05-18  9:53   ` Hans Verkuil
2020-05-14 16:45 ` [PATCH v3 2/8] media: i2c: Use the new get_mbus_config pad op Jacopo Mondi
2020-05-14 16:45 ` [PATCH v3 3/8] media: i2c: ov6650: Use new [g|s]_mbus_config op Jacopo Mondi
2020-05-18 10:00   ` Kieran Bingham
2020-05-14 16:45 ` [PATCH v3 4/8] media: pxa_camera: Use the new set_mbus_config op Jacopo Mondi
2020-05-14 16:45 ` [PATCH v3 5/8] media: v4l2-subdev: Deprecate g_mbus_config video op Jacopo Mondi
2020-05-18  8:48   ` Hans Verkuil
2020-05-14 16:45 ` [PATCH v3 6/8] media: i2c: adv748x: Adjust TXA data lanes number Jacopo Mondi
2020-05-14 16:45 ` Jacopo Mondi [this message]
2020-05-14 16:45 ` [PATCH v3 8/8] media: rcar-csi2: Negotiate " Jacopo Mondi

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