FROMLIST: media: iris: Add handling for no show frames

Firmware sends the picture type as NO_SHOW for frames which are not
supposed to be displayed, add handling for the same in driver to drop
them.

Link: https://lore.kernel.org/linux-arm-msm/20250509-video-iris-hevc-vp9-v5-18-59b4ff7d331c@quicinc.com/
Acked-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
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
Tested-by: Vikash Garodia <quic_vgarodia@quicinc.com> # on sa8775p-ride
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>

Author: Dikshita Agarwal

drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h

@@ -113,6 +113,7 @@ enum hfi_picture_type {
 	HFI_PICTURE_I				= 0x00000008,
 	HFI_PICTURE_CRA				= 0x00000010,
 	HFI_PICTURE_BLA				= 0x00000020,
+	HFI_PICTURE_NOSHOW			= 0x00000040,
 };
 
 enum hfi_buffer_type {

drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c

@@ -91,7 +91,9 @@ static int iris_hfi_gen2_get_driver_buffer_flags(struct iris_inst *inst, u32 hfi
 	struct iris_inst_hfi_gen2 *inst_hfi_gen2 = to_iris_inst_hfi_gen2(inst);
 	u32 driver_flags = 0;
 
-	if (inst_hfi_gen2->hfi_frame_info.picture_type & keyframe)
+	if (inst_hfi_gen2->hfi_frame_info.picture_type & HFI_PICTURE_NOSHOW)
+		driver_flags |= V4L2_BUF_FLAG_ERROR;
+	else if (inst_hfi_gen2->hfi_frame_info.picture_type & keyframe)
 		driver_flags |= V4L2_BUF_FLAG_KEYFRAME;
 	else if (inst_hfi_gen2->hfi_frame_info.picture_type & HFI_PICTURE_P)
 		driver_flags |= V4L2_BUF_FLAG_PFRAME;