Hi Pratyush, On 26/05/2021 18:22, Pratyush Yadav wrote:
Hi, This series adds support for CSI2 capture on J721E. It includes some fixes to the Cadence CSI2RX driver, adds Rx support to Cadence DPHY driver, and finally adds the TI CSI2RX wrapper driver. Tested on TI's J721E with OV5640 sensor.
I also see this after a few captures: [ 84.115503] ------------[ cut here ]------------ [ 84.120144] DMA-API: ti-udma 31150000.dma-controller: mapping sg segment longer than device claims to support [len=1900544] [max=65536] [ 84.132376] WARNING: CPU: 1 PID: 594 at kernel/dma/debug.c:1172 debug_dma_map_sg+0x304/0x390 [ 84.140804] Modules linked in: ov5640 ti_cal j721e_csi2rx cdns_csi2rx cdns_dphy v4l2_fwnode tidss ti_tfp410 tc358767 display_connector cdns_mhdp8546 panel_simple drm_kms_helper d rm drm_panel_orientation_quirks cfbfillrect cfbimgblt cfbcopyarea phy_j721e_wiz phy_cadence_torrent [ 84.165298] CPU: 1 PID: 594 Comm: cam-mplex.py Not tainted 5.13.0-rc1-00206-g98bb91e95a28-dirty #5 [ 84.174236] Hardware name: Texas Instruments K3 J721E SoC (DT) [ 84.180051] pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--) [ 84.186041] pc : debug_dma_map_sg+0x304/0x390 [ 84.190383] lr : debug_dma_map_sg+0x304/0x390 [ 84.194725] sp : ffff800014d0f730 [ 84.198026] x29: ffff800014d0f730 x28: ffff000801544680 x27: ffffffffffffffff [ 84.205148] x26: 0000000000000000 x25: 0000000000000002 x24: 0000000000000001 [ 84.212269] x23: ffff80001163abe0 x22: 0000000000000000 x21: 0000000000000001 [ 84.219390] x20: ffff000801fa3010 x19: ffff0008075c7580 x18: 0000000000000000 [ 84.226510] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000030 [ 84.233630] x14: 6e61687420726567 x13: 6e6f6c20746e656d x12: 7420736d69616c63 [ 84.240751] x11: 2065636976656420 x10: ffff8000116b18f8 x9 : ffff8000100eb920 [ 84.247871] x8 : ffff8000116598f8 x7 : ffff8000116b18f8 x6 : 0000000000000001 [ 84.254991] x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 [ 84.262111] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0008066f8000 [ 84.269230] Call trace: [ 84.271665] debug_dma_map_sg+0x304/0x390 [ 84.275660] dma_map_sg_attrs+0x70/0xb0 [ 84.279486] drm_gem_map_dma_buf+0x6c/0xf0 [drm] [ 84.284177] __map_dma_buf+0x28/0x80 [ 84.287742] dma_buf_map_attachment+0xe4/0x200 [ 84.292172] vb2_dc_map_dmabuf+0x3c/0x150 [ 84.296171] __prepare_dmabuf+0x1dc/0x514 [ 84.300168] __buf_prepare+0x1a0/0x25c [ 84.303903] vb2_core_qbuf+0x3d4/0x72c [ 84.307638] vb2_qbuf+0x9c/0xf4 [ 84.310767] vb2_ioctl_qbuf+0x68/0x7c [ 84.314416] v4l_qbuf+0x54/0x70 [ 84.317545] __video_do_ioctl+0x194/0x400 [ 84.321541] video_usercopy+0x19c/0x910 [ 84.325362] video_ioctl2+0x24/0x40 [ 84.328837] v4l2_ioctl+0x4c/0x70 [ 84.332141] __arm64_sys_ioctl+0xb4/0xfc [ 84.336053] invoke_syscall+0x50/0x120 [ 84.339791] el0_svc_common.constprop.0+0x68/0x104 [ 84.344569] do_el0_svc+0x30/0x9c [ 84.347872] el0_svc+0x2c/0x54 [ 84.350916] el0_sync_handler+0x1a8/0x1ac [ 84.354911] el0_sync+0x198/0x1c0 [ 84.358215] irq event stamp: 0 [ 84.361256] hardirqs last enabled at (0): [<0000000000000000>] 0x0 [ 84.367507] hardirqs last disabled at (0): [<ffff80001004fe2c>] copy_process+0x44c/0x1800 [ 84.375667] softirqs last enabled at (0): [<ffff80001004fe2c>] copy_process+0x44c/0x1800 [ 84.383824] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 84.390073] ---[ end trace af3448c784059129 ]---
