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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Dec 2025 08:34:20.2144 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 717251a2-75af-4648-8e36-08de477e3a55 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A107.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR10MB7364 Content-Type: text/plain; charset="utf-8" After draining, when a buffer is queued to the driver, ti will fill out the buffer with a partial frame as some part of the frame is drained. Return the partial frame with VB2_BUF_STATE_ERROR. Signed-off-by: Rishikesh Donadkar Reviewed-by: Jai Luthra --- drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/driver= s/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c index e713293696eb1..3922bd67e78da 100644 --- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c +++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c @@ -83,6 +83,7 @@ struct ti_csi2rx_buffer { enum ti_csi2rx_dma_state { TI_CSI2RX_DMA_STOPPED, /* Streaming not started yet. */ TI_CSI2RX_DMA_ACTIVE, /* Streaming and pending DMA operation. */ + TI_CSI2RX_DMA_DRAINING, /* Dumping all the data in drain buffer */ }; =20 struct ti_csi2rx_dma { @@ -728,12 +729,20 @@ static void ti_csi2rx_dma_callback(void *param) spin_lock_irqsave(&dma->lock, flags); =20 WARN_ON(!list_is_first(&buf->list, &dma->submitted)); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE); + + if (dma->state =3D=3D TI_CSI2RX_DMA_DRAINING) { + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dma->state =3D TI_CSI2RX_DMA_ACTIVE; + } else { + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE); + } + list_del(&buf->list); =20 ti_csi2rx_dma_submit_pending(ctx); =20 if (list_empty(&dma->submitted)) { + dma->state =3D TI_CSI2RX_DMA_DRAINING; if (ti_csi2rx_drain_dma(ctx)) dev_warn(ctx->csi->dev, "DMA drain failed on one of the transactions\n"); --=20 2.34.1