From e24328974a88aa8541e94e8bb8dfa2ade1b3c45d Mon Sep 17 00:00:00 2001 From: Donggeun Yoo Date: Wed, 2 Sep 2026 00:21:26 +0900 Subject: iio: proximity: vl53l0x-i2c: claim direct mode for raw reads vl53l0x_read_raw() starts a single-shot ranging measurement and reads back the result. Once the triggered buffer is enabled the sensor runs in continuous mode and its data-ready interrupt is routed to the trigger, so a concurrent in_distance_raw read disturbs the streaming setup and never gets its completion, returning -ETIMEDOUT. The original submission claimed direct mode here, but it was dropped during review because the driver had no buffer support at the time [1]. Continuous (buffered) mode was later added without restoring the claim [2], reintroducing the conflict. Reject direct reads while buffered capture is active by claiming direct mode around the measurement, as the vl53l1x sibling already does. Fixes: 762186c6e7b1 ("iio: proximity: vl53l0x-i2c: Added continuous mode support") Link: https://lore.kernel.org/linux-iio/20180911160300.GA9212@himanshu-Vostro-3559/ [1] Link: https://lore.kernel.org/linux-iio/20240909101508.263085-3-abhashkumarjha123@gmail.com/ [2] Signed-off-by: Donggeun Yoo Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- Documentation/gpu/imagination/index.rst | 13 +++ Documentation/gpu/imagination/uapi.rst | 171 ++++++++++++++++++++++++++++++++ 2 files changed, 184 insertions(+) create mode 100644 Documentation/gpu/imagination/index.rst create mode 100644 Documentation/gpu/imagination/uapi.rst (limited to 'Documentation/gpu/imagination') diff --git a/Documentation/gpu/imagination/index.rst b/Documentation/gpu/imagination/index.rst new file mode 100644 index 000000000..0c1e247ce --- /dev/null +++ b/Documentation/gpu/imagination/index.rst @@ -0,0 +1,13 @@ +======================================= +drm/imagination PowerVR Graphics Driver +======================================= + +.. kernel-doc:: drivers/gpu/drm/imagination/pvr_drv.c + :doc: PowerVR (Series 6 and later) and IMG Graphics Driver + +Contents +======== +.. toctree:: + :maxdepth: 2 + + uapi diff --git a/Documentation/gpu/imagination/uapi.rst b/Documentation/gpu/imagination/uapi.rst new file mode 100644 index 000000000..7502413d0 --- /dev/null +++ b/Documentation/gpu/imagination/uapi.rst @@ -0,0 +1,171 @@ +==== +UAPI +==== +The sources associated with this section can be found in ``pvr_drm.h``. + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR UAPI + +OBJECT ARRAYS +============= +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_obj_array + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: DRM_PVR_OBJ_ARRAY + +IOCTLS +====== +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL interface + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: PVR_IOCTL + +DEV_QUERY +--------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL DEV_QUERY interface + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_dev_query + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_dev_query_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_dev_query_gpu_info + drm_pvr_dev_query_runtime_info + drm_pvr_dev_query_hwrt_info + drm_pvr_dev_query_quirks + drm_pvr_dev_query_enhancements + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_heap_id + drm_pvr_heap + drm_pvr_dev_query_heap_info + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_static_data_area_usage + drm_pvr_static_data_area + drm_pvr_dev_query_static_data_areas + +CREATE_BO +--------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL CREATE_BO interface + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_create_bo_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: Flags for CREATE_BO + +GET_BO_MMAP_OFFSET +------------------ +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL GET_BO_MMAP_OFFSET interface + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_get_bo_mmap_offset_args + +CREATE_VM_CONTEXT and DESTROY_VM_CONTEXT +---------------------------------------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL CREATE_VM_CONTEXT and DESTROY_VM_CONTEXT interfaces + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_create_vm_context_args + drm_pvr_ioctl_destroy_vm_context_args + +VM_MAP and VM_UNMAP +------------------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL VM_MAP and VM_UNMAP interfaces + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_vm_map_args + drm_pvr_ioctl_vm_unmap_args + +CREATE_CONTEXT and DESTROY_CONTEXT +---------------------------------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL CREATE_CONTEXT and DESTROY_CONTEXT interfaces + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_create_context_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ctx_priority + drm_pvr_ctx_type + drm_pvr_static_render_context_state + drm_pvr_static_render_context_state_format + drm_pvr_reset_framework + drm_pvr_reset_framework_format + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_destroy_context_args + +CREATE_FREE_LIST and DESTROY_FREE_LIST +-------------------------------------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL CREATE_FREE_LIST and DESTROY_FREE_LIST interfaces + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_create_free_list_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_destroy_free_list_args + +CREATE_HWRT_DATASET and DESTROY_HWRT_DATASET +-------------------------------------------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL CREATE_HWRT_DATASET and DESTROY_HWRT_DATASET interfaces + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_create_hwrt_dataset_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_create_hwrt_geom_data_args + drm_pvr_create_hwrt_rt_data_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_destroy_hwrt_dataset_args + +SUBMIT_JOBS +----------- +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: PowerVR IOCTL SUBMIT_JOBS interface + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: Flags for the drm_pvr_sync_op object. + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_ioctl_submit_jobs_args + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: Flags for SUBMIT_JOB ioctl geometry command. + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: Flags for SUBMIT_JOB ioctl fragment command. + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: Flags for SUBMIT_JOB ioctl compute command. + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :doc: Flags for SUBMIT_JOB ioctl transfer command. + +.. kernel-doc:: include/uapi/drm/pvr_drm.h + :identifiers: drm_pvr_sync_op + drm_pvr_job_type + drm_pvr_hwrt_data_ref + drm_pvr_job + +Internal notes +============== +.. kernel-doc:: drivers/gpu/drm/imagination/pvr_device.h + :doc: IOCTL validation helpers + +.. kernel-doc:: drivers/gpu/drm/imagination/pvr_device.h + :identifiers: PVR_STATIC_ASSERT_64BIT_ALIGNED PVR_IOCTL_UNION_PADDING_CHECK + pvr_ioctl_union_padding_check -- cgit v1.3.1