Hi, I've been testing Bryan's work that enables the camera on the Lenovo ThinkPad X13s and keep triggering the below warnings when stopping a stream (e.g. closing qcam) which indicate that this is a driver bug. After this happens qcam fails to start again (something returns -EBUSY). Is this a known issue with CAMSS or is something missing in the sc8280xp integration? I'm using the following (squashed) devicetree patch from Bryan to enable the camera (everything else is upstream): https://github.com/jhovold/linux/commit/85b41b8d0efd418509df548592f95b43b9663409 The issue was there with 6.9 as well so it's not a (recent) regression. Probing the camera sometimes, but infrequently, also fails with: qcom-camss ac5a000.camss: Failed to power up pipeline: -13 and I'm seeing the following warning on every boot: i2c-qcom-cci ac4c000.cci: Found 19200000 cci clk rate while 37500000 was expected Johan [ 1265.509677] ------------[ cut here ]------------ [ 1265.509831] WARNING: CPU: 5 PID: 919 at drivers/media/common/videobuf2/videobuf2-core.c:2183 __vb2_queue_cancel+0x230/0x2c8 [videobuf2_common] ... [ 1265.510417] CPU: 5 PID: 919 Comm: qcam Not tainted 6.10.0-rc5 #124 [ 1265.510428] Hardware name: LENOVO 21BYZ9SRUS/21BYZ9SRUS, BIOS N3HET87W (1.59 ) 12/05/2023 ... [ 1265.510630] Call trace: [ 1265.510636] __vb2_queue_cancel+0x230/0x2c8 [videobuf2_common] [ 1265.510648] vb2_core_streamoff+0x24/0xcc [videobuf2_common] [ 1265.510660] vb2_ioctl_streamoff+0x5c/0xa8 [videobuf2_v4l2] [ 1265.510673] v4l_streamoff+0x24/0x30 [videodev] [ 1265.510707] __video_do_ioctl+0x190/0x3f4 [videodev] [ 1265.510732] video_usercopy+0x304/0x8c4 [videodev] [ 1265.510757] video_ioctl2+0x18/0x34 [videodev] [ 1265.510782] v4l2_ioctl+0x40/0x60 [videodev] [ 1265.510807] __arm64_sys_ioctl+0xa8/0xec [ 1265.510820] invoke_syscall+0x48/0x118 [ 1265.510834] el0_svc_common.constprop.0+0x40/0xe0 [ 1265.510845] do_el0_svc+0x1c/0x28 [ 1265.510856] el0_svc+0x48/0x114 [ 1265.510867] el0t_64_sync_handler+0xc0/0xc4 [ 1265.510876] el0t_64_sync+0x190/0x194 [ 1265.510885] irq event stamp: 279668 [ 1265.510892] hardirqs last enabled at (279667): [<ffffa0c6a09d7754>] _raw_spin_unlock_irqrestore+0x74/0x78 [ 1265.510904] hardirqs last disabled at (279668): [<ffffa0c6a09c8860>] el1_dbg+0x24/0x8c [ 1265.510913] softirqs last enabled at (279636): [<ffffa0c69ffe76e4>] fpsimd_restore_current_state+0x34/0xc4 [ 1265.510924] softirqs last disabled at (279634): [<ffffa0c69ffe76b4>] fpsimd_restore_current_state+0x4/0xc4 [ 1265.510935] ---[ end trace 0000000000000000 ]--- [ 1265.510944] videobuf2_common: driver bug: stop_streaming operation is leaving buffer 0 in active state [ 1265.511175] videobuf2_common: driver bug: stop_streaming operation is leaving buffer 1 in active state [ 1265.511398] videobuf2_common: driver bug: stop_streaming operation is leaving buffer 2 in active state
