linux-kernel - [PATCH 4/4] media: i2c: imx214: Add sensor's pixel matrix size

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Message-Id: <20231023-imx214-v1-4-b33f1bbd1fcf@apitzsch.eu>
Date:   Mon, 23 Oct 2023 23:47:53 +0200
From:   André Apitzsch <git@...tzsch.eu>
To:     Ricardo Ribalda <ribalda@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        André Apitzsch <git@...tzsch.eu>
Subject: [PATCH 4/4] media: i2c: imx214: Add sensor's pixel matrix size

Set effictive and active sensor pixel sizes as shown in product
brief[1].

[1]: https://www.mouser.com/datasheet/2/897/ProductBrief_IMX214_20150428-1289331.pdf

Signed-off-by: André Apitzsch <git@...tzsch.eu>
---
 drivers/media/i2c/imx214.c | 39 ++++++++++++++++++++++++++++++++-------
 1 file changed, 32 insertions(+), 7 deletions(-)

diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index bef8dc36e2d0..a2d441cd8dcd 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -36,6 +36,14 @@
 #define IMX214_EXPOSURE_STEP		1
 #define IMX214_EXPOSURE_DEFAULT		0x0c70
 
+/* IMX214 native and active pixel array size */
+#define IMX214_NATIVE_WIDTH		4224U
+#define IMX214_NATIVE_HEIGHT		3136U
+#define IMX214_PIXEL_ARRAY_LEFT		8U
+#define IMX214_PIXEL_ARRAY_TOP		8U
+#define IMX214_PIXEL_ARRAY_WIDTH	4208U
+#define IMX214_PIXEL_ARRAY_HEIGHT	3120U
+
 static const char * const imx214_supply_name[] = {
 	"vdda",
 	"vddd",
@@ -634,14 +642,31 @@ static int imx214_get_selection(struct v4l2_subdev *sd,
 {
 	struct imx214 *imx214 = to_imx214(sd);
 
-	if (sel->target != V4L2_SEL_TGT_CROP)
-		return -EINVAL;
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		mutex_lock(&imx214->mutex);
+		sel->r = *__imx214_get_pad_crop(imx214, sd_state, sel->pad,
+						sel->which);
+		mutex_unlock(&imx214->mutex);
+		return 0;
 
-	mutex_lock(&imx214->mutex);
-	sel->r = *__imx214_get_pad_crop(imx214, sd_state, sel->pad,
-					sel->which);
-	mutex_unlock(&imx214->mutex);
-	return 0;
+	case V4L2_SEL_TGT_NATIVE_SIZE:
+		sel->r.top = 0;
+		sel->r.left = 0;
+		sel->r.width = IMX214_NATIVE_WIDTH;
+		sel->r.height = IMX214_NATIVE_HEIGHT;
+		return 0;
+
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		sel->r.top = IMX214_PIXEL_ARRAY_TOP;
+		sel->r.left = IMX214_PIXEL_ARRAY_LEFT;
+		sel->r.width = IMX214_PIXEL_ARRAY_WIDTH;
+		sel->r.height = IMX214_PIXEL_ARRAY_HEIGHT;
+		return 0;
+	}
+
+	return -EINVAL;
 }
 
 static int imx214_entity_init_cfg(struct v4l2_subdev *subdev,

-- 
2.42.0