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'm having some trouble unloading and reloading the modules: rmmod ti_cal rmmod j721e_csi2rx rmmod cdns_csi2rx rmmod cdns_dphy rmmod ov5640 [ 37.943128] ------------[ cut here ]------------ [ 37.947752] WARNING: CPU: 1 PID: 628 at drivers/media/v4l2-core/v4l2-ctrls-core.c:1807 __v4l2_ctrl_handler_setup+0x15c/0x170 [ 37.958963] Modules linked in: ov5640(-) v4l2_fwnode tidss ti_tfp410 tc358767 display_connector cdns_mhdp8546 panel_simple drm_kms_helper drm drm_panel_orientation_quirks cfbfill rect cfbimgblt cfbcopyarea phy_j721e_wiz phy_cadence_torrent [last unloaded: cdns_dphy] [ 37.982455] CPU: 1 PID: 628 Comm: rmmod Not tainted 5.13.0-rc1-00205-g93acc23badc8 #3 [ 37.990271] Hardware name: Texas Instruments K3 J721E SoC (DT) [ 37.996090] pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--) [ 38.002085] pc : __v4l2_ctrl_handler_setup+0x15c/0x170 [ 38.007214] lr : __v4l2_ctrl_handler_setup+0x158/0x170 [ 38.012343] sp : ffff80001476fae0 [ 38.015648] x29: ffff80001476fae0 x28: ffff000806780000 x27: 0000000000000000 [ 38.022781] x26: ffff00080300b448 x25: ffff000804ad4ac0 x24: 0000000000000001 [ 38.029912] x23: 0000000000000000 x22: 0000000000000005 x21: ffff000801fa7880 [ 38.037043] x20: ffff000801fa7888 x19: ffff000801fa7ba8 x18: 0000000000000000 [ 38.044173] x17: 0000000000000000 x16: 0000000000000010 x15: 0000000000000001 [ 38.051305] x14: 000000000000003b x13: 00000000aaaaaaab x12: ffff800011a915b8 [ 38.058436] x11: 00000000000c001c x10: 000000008260a2b7 x9 : ffff800009362d9c [ 38.065566] x8 : ffff800011887100 x7 : 0000000000000000 x6 : 0000000000000001 [ 38.072698] x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800011260000 [ 38.079829] x2 : 00000000000000c0 x1 : 00000000000000c0 x0 : 0000000000000000 [ 38.086960] Call trace: [ 38.089399] __v4l2_ctrl_handler_setup+0x15c/0x170 [ 38.094181] ov5640_resume+0x1fc/0x270 [ov5640] [ 38.098709] __rpm_callback+0x98/0x160 [ 38.102452] rpm_callback+0x2c/0x90 [ 38.105934] rpm_resume+0x45c/0x6f4 [ 38.109415] __pm_runtime_resume+0x54/0xc0 [ 38.113503] __device_release_driver+0x40/0x240 [ 38.118025] driver_detach+0xd0/0x160 [ 38.121680] bus_remove_driver+0x68/0xe0 [ 38.125595] driver_unregister+0x3c/0x6c [ 38.129509] i2c_del_driver+0x64/0xb0 [ 38.133166] ov5640_i2c_driver_exit+0x1c/0xc948 [ov5640] [ 38.138469] __arm64_sys_delete_module+0x1b0/0x27c [ 38.143251] invoke_syscall+0x50/0x120 [ 38.146995] el0_svc_common.constprop.0+0x68/0x104 [ 38.151777] do_el0_svc+0x30/0x9c [ 38.155086] el0_svc+0x2c/0x54 [ 38.158135] el0_sync_handler+0x1a8/0x1ac [ 38.162136] el0_sync+0x198/0x1c0 [ 38.165444] irq event stamp: 11302 [ 38.168837] hardirqs last enabled at (11301): [<ffff800010bf4e40>] _raw_spin_unlock_irq+0x50/0xa0 [ 38.177781] hardirqs last disabled at (11302): [<ffff800010be7a64>] el1_dbg+0x24/0xa0 [ 38.185595] softirqs last enabled at (10378): [<ffff800010010ba0>] __do_softirq+0x500/0x6bc [ 38.194017] softirqs last disabled at (10373): [<ffff80001005d4c4>] __irq_exit_rcu+0x1d4/0x1e0 [ 38.202614] ---[ end trace 7037324a951cb149 ]--- rmmod v4l2_fwnode insmod /root/nfs/work/linux/drivers/media/v4l2-core/v4l2-fwnode.ko insmod /root/nfs/work/linux/drivers/phy/cadence/cdns-dphy.ko insmod /root/nfs/work/linux/drivers/media/platform/cadence/cdns-csi2rx.ko ERROR: Unhandled External Abort received on 0x80000001 from S-EL1 ERROR: exception reason=0 syndrome=0xbf000000 Unhandled Exception from EL1 x0 = 0x0000000000000000 x1 = 0xffff000804d59800 x2 = 0xffff8000146c4000 x3 = 0xffff800011260000 x4 = 0x0000000000000001 x5 = 0x0000000000000001 x6 = 0x0000000000000001 x7 = 0x0000000000000000 x8 = 0xffff800011887100 x9 = 0xffff800010bf5190 x10 = 0x000000008260a2b7 x11 = 0x00000000000c821d x12 = 0xffff800011a915b8 x13 = 0x0000000000000001 x14 = 0x0000000000000000 x15 = 0x0000000000000020 x16 = 0x0000000000000000 x17 = 0x0000000000000000 x18 = 0x00000000fffffffb x19 = 0xffff000806d44c00 x20 = 0x0000000000000000 x21 = 0xffff800009280058 x22 = 0xffff00080583c810 x23 = 0xffff00080583c800 x24 = 0xffff800009280058 x25 = 0x0000000000000047 x26 = 0xffff8000116d71d8 x27 = 0xffff800009280350 x28 = 0xffff800009280148 x29 = 0xffff80001432f850 x30 = 0xffff8000092506b8 scr_el3 = 0x000000000000073d sctlr_el3 = 0x0000000030cd183f cptr_el3 = 0x0000000000000000 tcr_el3 = 0x0000000080803520 daif = 0x00000000000002c0 mair_el3 = 0x00000000004404ff spsr_el3 = 0x0000000000000005 elr_el3 = 0xffff80000925043c ttbr0_el3 = 0x0000000070010b00 esr_el3 = 0x00000000bf000000 far_el3 = 0x0000000000000000 spsr_el1 = 0x0000000060000005 elr_el1 = 0xffff800010be8cb0 spsr_abt = 0x0000000000000000 spsr_und = 0x0000000000000000 spsr_irq = 0x0000000000000000 spsr_fiq = 0x0000000000000000 sctlr_el1 = 0x0000000034d4d91d actlr_el1 = 0x0000000000000000 cpacr_el1 = 0x0000000000300000 csselr_el1 = 0x0000000000000000 sp_el1 = 0xffff80001432f850 esr_el1 = 0x0000000056000000 ttbr0_el1 = 0x0000000882773200 ttbr1_el1 = 0x06d8000083180000 mair_el1 = 0x000c0400bb44ffff amair_el1 = 0x0000000000000000 tcr_el1 = 0x00000034f5d07590 tpidr_el1 = 0xffff80086e790000 tpidr_el0 = 0x0000ffff895c6910 tpidrro_el0 = 0x0000000000000000 par_el1 = 0x0000000000000000 mpidr_el1 = 0x0000000080000001 afsr0_el1 = 0x0000000000000000 afsr1_el1 = 0x0000000000000000 contextidr_el1 = 0x0000000000000000 vbar_el1 = 0xffff800010011000 cntp_ctl_el0 = 0x0000000000000005 cntp_cval_el0 = 0x000000023f77b7a1 cntv_ctl_el0 = 0x0000000000000000 cntv_cval_el0 = 0x0000000000000000 cntkctl_el1 = 0x00000000000000d6 sp_el0 = 0x000000007000abd0 isr_el1 = 0x0000000000000040 dacr32_el2 = 0x0000000000000000 ifsr32_el2 = 0x0000000000000000 cpuectlr_el1 = 0x0000001b00000040 cpumerrsr_el1 = 0x0000000000000000 l2merrsr_el1 = 0x0000000000000000
