From: Changhuang Liang <changhuang.liang@starfivetech.com>
Date: Mon, 11 Dec 2023 09:43:29 +0000 (-0800)
Subject: media: cadence: csi2rx: Add enum_mbus_code pad ops
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c2716904918e99ca4b77354dd46ceec2d9ba2ff6;p=linux.git

media: cadence: csi2rx: Add enum_mbus_code pad ops

Add enum_mbus_code ioctl so that user space can know what
formats are supported to csi2rx.

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Reviewed-by: Julien Massot <julien.massot@collabora.com>
Tested-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: Jai Luthra <j-luthra@ti.com>
Tested-by: Jai Luthra <j-luthra@ti.com> # [Test on sk-am62a]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---

diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
index 401d9a7c65f86..2d7b0508cc9af 100644
--- a/drivers/media/platform/cadence/cdns-csi2rx.c
+++ b/drivers/media/platform/cadence/cdns-csi2rx.c
@@ -393,6 +393,18 @@ out:
 	return ret;
 }
 
+static int csi2rx_enum_mbus_code(struct v4l2_subdev *subdev,
+				 struct v4l2_subdev_state *state,
+				 struct v4l2_subdev_mbus_code_enum *code_enum)
+{
+	if (code_enum->index >= ARRAY_SIZE(formats))
+		return -EINVAL;
+
+	code_enum->code = formats[code_enum->index].code;
+
+	return 0;
+}
+
 static int csi2rx_set_fmt(struct v4l2_subdev *subdev,
 			  struct v4l2_subdev_state *state,
 			  struct v4l2_subdev_format *format)
@@ -443,6 +455,7 @@ static int csi2rx_init_state(struct v4l2_subdev *subdev,
 }
 
 static const struct v4l2_subdev_pad_ops csi2rx_pad_ops = {
+	.enum_mbus_code	= csi2rx_enum_mbus_code,
 	.get_fmt	= v4l2_subdev_get_fmt,
 	.set_fmt	= csi2rx_set_fmt,
 };