6.17-stable review patch. If anyone has any objections, please let me know.
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From: Dikshita Agarwal quic_dikshita@quicinc.com
commit 8172f57746d68e5c3c743f725435d75c5a4db1ac upstream.
Improve drain handling by ensuring the LAST flag is attached to final capture buffer when drain response is received from the firmware.
Previously, the driver failed to attach the V4L2_BUF_FLAG_LAST flag when a drain response was received from the firmware, relying on userspace to mark the next queued buffer as LAST. This update fixes the issue by checking the pending drain status, attaching the LAST flag to the capture buffer received from the firmware (with EOS attached), and returning it to the V4L2 layer correctly.
Fixes: d09100763bed ("media: iris: add support for drain sequence") Cc: stable@vger.kernel.org Reviewed-by: Vikash Garodia quic_vgarodia@quicinc.com Tested-by: Vikash Garodia quic_vgarodia@quicinc.com # X1E80100 Reviewed-by: Bryan O'Donoghue bryan.odonoghue@linaro.org Tested-by: Neil Armstrong neil.armstrong@linaro.org # on SM8550-HDK Tested-by: Neil Armstrong neil.armstrong@linaro.org # on SM8650-HDK Signed-off-by: Dikshita Agarwal quic_dikshita@quicinc.com Tested-by: Bryan O'Donoghue bryan.odonoghue@linaro.org # x1e80100-crd Signed-off-by: Bryan O'Donoghue bod@kernel.org Signed-off-by: Hans Verkuil hverkuil+cisco@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c | 4 +--- drivers/media/platform/qcom/iris/iris_state.c | 2 +- drivers/media/platform/qcom/iris/iris_state.h | 1 + 3 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c index 8d1ce8a19a45..2a9645883383 100644 --- a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c @@ -416,8 +416,6 @@ static void iris_hfi_gen1_session_ftb_done(struct iris_inst *inst, void *packet) inst->flush_responses_pending++;
iris_inst_sub_state_change_drain_last(inst); - - return; }
if (iris_split_mode_enabled(inst) && pkt->stream_id == 0) { @@ -462,7 +460,7 @@ static void iris_hfi_gen1_session_ftb_done(struct iris_inst *inst, void *packet) timestamp_us = (timestamp_us << 32) | timestamp_lo; } else { if (pkt->stream_id == 1 && !inst->last_buffer_dequeued) { - if (iris_drc_pending(inst)) { + if (iris_drc_pending(inst) || iris_drain_pending(inst)) { flags |= V4L2_BUF_FLAG_LAST; inst->last_buffer_dequeued = true; } diff --git a/drivers/media/platform/qcom/iris/iris_state.c b/drivers/media/platform/qcom/iris/iris_state.c index a21238d2818f..d1dc1a863da0 100644 --- a/drivers/media/platform/qcom/iris/iris_state.c +++ b/drivers/media/platform/qcom/iris/iris_state.c @@ -252,7 +252,7 @@ bool iris_drc_pending(struct iris_inst *inst) inst->sub_state & IRIS_INST_SUB_DRC_LAST; }
-static inline bool iris_drain_pending(struct iris_inst *inst) +bool iris_drain_pending(struct iris_inst *inst) { return inst->sub_state & IRIS_INST_SUB_DRAIN && inst->sub_state & IRIS_INST_SUB_DRAIN_LAST; diff --git a/drivers/media/platform/qcom/iris/iris_state.h b/drivers/media/platform/qcom/iris/iris_state.h index e718386dbe04..b09fa54cf17e 100644 --- a/drivers/media/platform/qcom/iris/iris_state.h +++ b/drivers/media/platform/qcom/iris/iris_state.h @@ -141,5 +141,6 @@ int iris_inst_sub_state_change_drc_last(struct iris_inst *inst); int iris_inst_sub_state_change_pause(struct iris_inst *inst, u32 plane); bool iris_allow_cmd(struct iris_inst *inst, u32 cmd); bool iris_drc_pending(struct iris_inst *inst); +bool iris_drain_pending(struct iris_inst *inst);
#endif