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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Q5ufA8dPDK+BRt3zc6S8e/X4fCkawRLpRFM3gpf7Ym1BlVpTjwujrlwaLvu5QR1+TshDPb1kThSjzL4H+lGnTnmkWpn6oI/A1L1igMRFDge+hd42f/XGyF99bJTy+sR8buzUIOJlV8GRRxr0ft5MRi63lzjGJU1bqF71Ci5v2dJSoCuamnEWDMRj+zWzAmSWf2FfifN8FPwoIgq55wJY+Br1+P+pjYz5YBMZ71s6RnrCCQpYCg/rBXPl8ZdZL/k5yT1840qfhPlMNqrc0hPbRWhii7lYXQGST1Q07lY9ZP0swm3PVbmD5WN68Zde7p8FWcKZovZs/U2s36GQafKhosXzIK2dFpoll/ufBhHa+sr+Ik5SidxShwMp82PokkDRBg69CrmYQUVGfeMB6aW8+/BYQ6j2rEsbmbasxdnEqfZX+VwM/Z3EXaM2RNn2R1w6 X-OriginatorOrg: foss.st.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Mar 2026 09:42:51.0867 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 10bfdb40-c50a-43bf-f806-08de7b64bbdd X-MS-Exchange-CrossTenant-Id: 75e027c9-20d5-47d5-b82f-77d7cd041e8f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=75e027c9-20d5-47d5-b82f-77d7cd041e8f;Ip=[164.130.1.59];Helo=[smtpO365.st.com] X-MS-Exchange-CrossTenant-AuthSource: DU2PEPF0001E9C2.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV1PR10MB9091 Hi On 1/6/26 12:34, Alain Volmat wrote: > This series improve stability of the capture by fixing the > handling of the overrun which was leading to captured > frame corruption. > Locking within the driver is also simplified and the way > DMA is handled is reworked allowing to avoid having a > specific handling for the JPEG data. > > Performances of capture can now be increased via the usage > of a DMA->MDMA chaining which allows for capture of higher > resolution / framerate. > > Signed-off-by: Alain Volmat > --- > Changes in v2: > - Fix pm_sleep_ptr -> pm_ptr to avoid unused function warning > - Fix typo / remove useless comment in binding > - Link to v1: https://lore.kernel.org/r/20251218-stm32-dcmi-dma-chaining-v1-0-39948ca6cbf6@foss.st.com > > --- > Alain Volmat (12): > media: stm32: dcmi: Switch from __maybe_unused to pm_ptr() > media: stm32: dcmi: perform dmaengine_slave_config at probe > media: stm32: dcmi: only create dma descriptor once at buf_prepare > media: stm32: dcmi: stop the dma transfer on overrun > media: stm32: dcmi: rework spin_lock calls > media: stm32: dcmi: perform all dma handling within irq_thread > media: stm32: dcmi: use dmaengine_terminate_async in irq context > media: stm32: dcmi: continuous mode capture in JPEG > dt-bindings: media: st: dcmi: add DMA-MDMA chaining properties > media: stm32: dcmi: addition of DMA-MDMA chaining support > ARM: dts: stm32: add sram node within stm32mp151.dtsi > ARM: dts: stm32: enable DCMI DMA-MDMA chaining on stm32mp157c-ev1.dts > > .../devicetree/bindings/media/st,stm32-dcmi.yaml | 11 +- > arch/arm/boot/dts/st/stm32mp151.dtsi | 8 + > arch/arm/boot/dts/st/stm32mp157c-ev1.dts | 15 + > drivers/media/platform/st/stm32/stm32-dcmi.c | 475 +++++++++++++-------- > 4 files changed, 341 insertions(+), 168 deletions(-) > --- > base-commit: f7231cff1f3ff8259bef02dc4999bc132abf29cf > change-id: 20251213-stm32-dcmi-dma-chaining-9ea1da83007d > > Best regards, DT patches applied stm32-next branch. regards Alex