[PATCH] media: iris: Enumerate cap->bus_info to differentiate between encoder and decoder

[Bryan O'Donoghue]

commit 66c744e28b69 ("media: venus: assign unique bus_info strings for
encoder and decoder") introduced the naming convention
plat:node-addr:video-codec{enc|dec}. Right now Iris does not replicate this
naming convention.

When we do v4l2-ctrl --list -devices we see:
Iris Decoder (platform:aa00000.video-codec):
	/dev/video0
	/dev/video1

Enumerate the bus_info field of the capabilities structure for namespace
parity and appropriate differentiation:
Iris Decoder (plat:aa00000.video-codec:dec):
	/dev/video0

Iris Encoder (plat:aa00000.video-codec:enc):
	/dev/video1

Fixes: 5ad964ad5656 ("media: iris: Initialize and deinitialize encoder instance structure")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
---
A really simple fix to differentiate encoder and decoder in user-space for
the Iris driver as we have previously and recent done for Venus.
---
 drivers/media/platform/qcom/iris/iris_vidc.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c
index 807c9a20b6ba1..3105583cbdd1d 100644
--- a/drivers/media/platform/qcom/iris/iris_vidc.c
+++ b/drivers/media/platform/qcom/iris/iris_vidc.c
@@ -451,14 +451,21 @@ static int iris_enum_frameintervals(struct file *filp, void *fh,
 
 static int iris_querycap(struct file *filp, void *fh, struct v4l2_capability *cap)
 {
+	struct iris_core *core = video_drvdata(filp);
 	struct iris_inst *inst = iris_get_inst(filp);
+	char *info;
 
 	strscpy(cap->driver, IRIS_DRV_NAME, sizeof(cap->driver));
 
-	if (inst->domain == DECODER)
+	if (inst->domain == DECODER) {
 		strscpy(cap->card, "Iris Decoder", sizeof(cap->card));
-	else
+		info = "dec";
+	} else {
 		strscpy(cap->card, "Iris Encoder", sizeof(cap->card));
+		info = "enc";
+	}
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+		 "plat:%s:%s", dev_name(core->dev), info);
 
 	return 0;
 }

---
base-commit: 6a75e3d4f6428b90f398354212e3a2e0172851d6
change-id: 20260602-iris-simple-name-fix-ci-check-13f3f9c6586f

Best regards,
--  
Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>