diff mbox series

[v5,14/26] media: iris: Send V4L2_BUF_FLAG_ERROR for capture buffers with 0 filled length

Message ID 20250509-video-iris-hevc-vp9-v5-14-59b4ff7d331c@quicinc.com
State New
Headers show
Series [v5,01/26] media: iris: Skip destroying internal buffer if not dequeued | expand

Commit Message

Dikshita Agarwal May 9, 2025, 8:39 a.m. UTC 
Firmware sends capture buffers with 0 filled length which are not to be
displayed and should be dropped by client.
To achieve the same, add V4L2_BUF_FLAG_ERROR to such buffers by making
sure:
- These 0 length buffers are not returned as result of flush.
- Its not a buffer with LAST flag enabled which will also have 0 filled
  length.

Cc: stable@vger.kernel.org
Fixes: d09100763bed ("media: iris: add support for drain sequence")
Acked-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-HDK
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
---
 drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
index 4488540d1d410b58af02ab82a3238ccbe40f7093..d2cede2fe1b5a82cbd4dd399860c43ef044d687f 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
@@ -378,6 +378,11 @@  static int iris_hfi_gen2_handle_output_buffer(struct iris_inst *inst,
 
 	buf->flags = iris_hfi_gen2_get_driver_buffer_flags(inst, hfi_buffer->flags);
 
+	if (!buf->data_size && inst->state == IRIS_INST_STREAMING &&
+	    !(hfi_buffer->flags & HFI_BUF_FW_FLAG_LAST)) {
+		buf->flags |= V4L2_BUF_FLAG_ERROR;
+	}
+
 	return 0;
 }