Message-ID: <1e6ce146-ebf6-4200-be8b-a4ec78675d40@amlogic.com>
Date: Wed, 3 Apr 2024 14:44:44 +0800
From: Xianwei Zhao <xianwei.zhao@...ogic.com>
To: Lucas Tanure <tanure@...ux.com>, Yu Tu <yu.tu@...ogic.com>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>,
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
 Michael Turquette <mturquette@...libre.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-clk@...r.kernel.org
Subject: Re: [RFC][PATCH 0/2] Amlogic T7 (A113D2) Clock Driver

Hi Lucas,
    As we are preparing the T7 clock patchset, we would like to your 
purpose and plan of this RFC patches. Are you going to submit these 
patches at last?

On 2024/3/18 19:43, Lucas Tanure wrote:
> [ EXTERNAL EMAIL ]
> 
> I am trying to port the T7 clock driver from Khadas 5.4 kernel for Vim4
> to mainline, but I am encountering some issues in the path.
> 
> The kernel panics at clk_mux_val_to_index, but I believe that all the
> needed clocks are registered.
> 
> If anyone from Amlogic or the community could help me understand what
> my driver is missing, that would be great.
> I will continue to try to figure out, but it has been some weeks
> without progress =/.
> 
> Lucas Tanure (2):
>    clk: meson: T7: add support for Amlogic T7 SoC PLL clock driver
>    arm64: dts: amlogic: t7: SDCard, Ethernet and Clocking
> 
>   .../amlogic/amlogic-t7-a311d2-khadas-vim4.dts |   66 +
>   arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi   |  189 +
>   drivers/clk/meson/Kconfig                     |   25 +
>   drivers/clk/meson/Makefile                    |    2 +
>   drivers/clk/meson/t7-peripherals.c            | 6368 +++++++++++++++++
>   drivers/clk/meson/t7-peripherals.h            |  131 +
>   drivers/clk/meson/t7-pll.c                    | 1543 ++++
>   drivers/clk/meson/t7-pll.h                    |   83 +
>   .../clock/amlogic,t7-peripherals-clkc.h       |  410 ++
>   .../dt-bindings/clock/amlogic,t7-pll-clkc.h   |   69 +
>   10 files changed, 8886 insertions(+)
>   create mode 100644 drivers/clk/meson/t7-peripherals.c
>   create mode 100644 drivers/clk/meson/t7-peripherals.h
>   create mode 100644 drivers/clk/meson/t7-pll.c
>   create mode 100644 drivers/clk/meson/t7-pll.h
>   create mode 100644 include/dt-bindings/clock/amlogic,t7-peripherals-clkc.h
>   create mode 100644 include/dt-bindings/clock/amlogic,t7-pll-clkc.h
> 
> Starting kernel ...
> 
> uboot time: 14277917 us
> boot 64bit kernel
> [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd092]
> [    0.000000] Linux version 6.8.0-09793-gda876e5b54b3-dirty (tanureal@...en) (aarch64-none-linux-gnu-gcc (GNU Toolchain for the A-profile Architecture 10.3-2021.07 (arm-10.29)) 10.3.1 20210621, GNU ld (GNU Toolchain for the A-pr4
> [    0.000000] KASLR disabled due to lack of seed
> [    0.000000] Machine model: Khadas vim4
> [    0.000000] efi: UEFI not found.
> [    0.000000] OF: reserved mem: 0x0000000005000000..0x00000000052fffff (3072 KiB) nomap non-reusable secmon@...0000
> [    0.000000] OF: reserved mem: 0x0000000005300000..0x00000000072fffff (32768 KiB) nomap non-reusable secmon@...0000
> [    0.000000] NUMA: No NUMA configuration found
> [    0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x00000000df7fffff]
> [    0.000000] NUMA: NODE_DATA [mem 0xdf10c9c0-0xdf10efff]
> [    0.000000] Zone ranges:
> [    0.000000]   DMA      [mem 0x0000000000000000-0x00000000df7fffff]
> [    0.000000]   DMA32    empty
> [    0.000000]   Normal   empty
> [    0.000000] Movable zone start for each node
> [    0.000000] Early memory node ranges
> [    0.000000]   node   0: [mem 0x0000000000000000-0x0000000004ffffff]
> [    0.000000]   node   0: [mem 0x0000000005000000-0x00000000072fffff]
> [    0.000000]   node   0: [mem 0x0000000007300000-0x00000000df7fffff]
> [    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000df7fffff]
> [    0.000000] On node 0, zone DMA: 2048 pages in unavailable ranges
> [    0.000000] cma: Reserved 32 MiB at 0x00000000d9800000 on node -1
> [    0.000000] psci: probing for conduit method from DT.
> [    0.000000] psci: PSCIv1.0 detected in firmware.
> [    0.000000] psci: Using standard PSCI v0.2 function IDs
> [    0.000000] psci: Trusted OS migration not required
> [    0.000000] psci: SMC Calling Convention v1.1
> [    0.000000] percpu: Embedded 24 pages/cpu s58152 r8192 d31960 u98304
> [    0.000000] Detected VIPT I-cache on CPU0
> [    0.000000] CPU features: detected: Spectre-v2
> [    0.000000] CPU features: detected: Spectre-v4
> [    0.000000] CPU features: detected: Spectre-BHB
> [    0.000000] CPU features: detected: ARM erratum 858921
> [    0.000000] alternatives: applying boot alternatives
> [    0.000000] Kernel command line: root=UUID=a91e7bfe-4263-4e53-867d-7824e7c6a992 rw rootfstype=ext4 console=ttyS0,921600 no_console_suspend earlycon=ttyS0,0xfe078000 khadas_board=VIM4 androidboot.selinux=permissive androidboot.0
> [    0.000000] Unknown kernel command line parameters "khadas_board=VIM4", will be passed to user space.
> [    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
> [    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
> [    0.000000] Fallback order for Node 0: 0
> [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 901152
> [    0.000000] Policy zone: DMA
> [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
> [    0.000000] software IO TLB: SWIOTLB bounce buffer size adjusted to 3MB
> [    0.000000] software IO TLB: area num 8.
> [    0.000000] software IO TLB: SWIOTLB bounce buffer size roundup to 4MB
> [    0.000000] software IO TLB: mapped [mem 0x00000000d8e00000-0x00000000d9200000] (4MB)
> [    0.000000] Memory: 3445944K/3661824K available (16896K kernel code, 4426K rwdata, 9184K rodata, 9728K init, 611K bss, 183112K reserved, 32768K cma-reserved)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
> [    0.000000] rcu: Preemptible hierarchical RCU implementation.
> [    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=8.
> [    0.000000]  Trampoline variant of Tasks RCU enabled.
> [    0.000000]  Tracing variant of Tasks RCU enabled.
> [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
> [    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8
> [    0.000000] RCU Tasks: Setting shift to 3 and lim to 1 rcu_task_cb_adjust=1.
> [    0.000000] RCU Tasks Trace: Setting shift to 3 and lim to 1 rcu_task_cb_adjust=1.
> [    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
> [    0.000000] GIC: GICv2 detected, but range too small and irqchip.gicv2_force_probe not set
> [    0.000000] Root IRQ handler: gic_handle_irq
> [    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
> [    0.000000] arch_timer: Enabling local workaround for ARM erratum 858921
> [    0.000000] arch_timer: CPU0: Trapping CNTVCT access
> [    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (phys).
> [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
> [    0.000000] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
> [    0.000210] Console: colour dummy device 80x25
> [    0.000253] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=96000)
> [    0.000261] pid_max: default: 32768 minimum: 301
> [    0.000300] LSM: initializing lsm=capability
> [    0.000358] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
> [    0.000371] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
> [    0.000920] cacheinfo: Unable to detect cache hierarchy for CPU 0
> [    0.001389] rcu: Hierarchical SRCU implementation.
> [    0.001391] rcu:     Max phase no-delay instances is 1000.
> [    0.001834] EFI services will not be available.
> [    0.001999] smp: Bringing up secondary CPUs ...
> [    0.002408] CPU features: detected: ARM erratum 845719
> [    0.002426] Detected VIPT I-cache on CPU1
> [    0.002516] CPU1: Booted secondary processor 0x0000000100 [0x410fd034]
> [    0.003007] Detected VIPT I-cache on CPU2
> [    0.003054] CPU2: Booted secondary processor 0x0000000101 [0x410fd034]
> [    0.003497] Detected VIPT I-cache on CPU3
> [    0.003546] CPU3: Booted secondary processor 0x0000000102 [0x410fd034]
> [    0.003988] Detected VIPT I-cache on CPU4
> [    0.004038] CPU4: Booted secondary processor 0x0000000103 [0x410fd034]
> [    0.004472] Detected VIPT I-cache on CPU5
> [    0.004509] arch_timer: Enabling local workaround for ARM erratum 858921
> [    0.004519] arch_timer: CPU5: Trapping CNTVCT access
> [    0.004527] CPU5: Booted secondary processor 0x0000000001 [0x410fd092]
> [    0.004915] Detected VIPT I-cache on CPU6
> [    0.004940] arch_timer: Enabling local workaround for ARM erratum 858921
> [    0.004946] arch_timer: CPU6: Trapping CNTVCT access
> [    0.004951] CPU6: Booted secondary processor 0x0000000002 [0x410fd092]
> [    0.005333] Detected VIPT I-cache on CPU7
> [    0.005358] arch_timer: Enabling local workaround for ARM erratum 858921
> [    0.005364] arch_timer: CPU7: Trapping CNTVCT access
> [    0.005369] CPU7: Booted secondary processor 0x0000000003 [0x410fd092]
> [    0.005414] smp: Brought up 1 node, 8 CPUs
> [    0.005419] SMP: Total of 8 processors activated.
> [    0.005421] CPU: All CPU(s) started at EL2
> [    0.005434] CPU features: detected: 32-bit EL0 Support
> [    0.005437] CPU features: detected: 32-bit EL1 Support
> [    0.005440] CPU features: detected: CRC32 instructions
> [    0.005485] alternatives: applying system-wide alternatives
> [    0.006730] devtmpfs: initialized
> [    0.008534] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
> [    0.008545] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
> [    0.008989] pinctrl core: initialized pinctrl subsystem
> [    0.009581] DMI not present or invalid.
> [    0.011290] NET: Registered PF_NETLINK/PF_ROUTE protocol family
> [    0.011944] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic allocations
> [    0.012293] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
> [    0.012711] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
> [    0.012832] audit: initializing netlink subsys (disabled)
> [    0.013075] audit: type=2000 audit(0.012:1): state=initialized audit_enabled=0 res=1
> [    0.013508] thermal_sys: Registered thermal governor 'step_wise'
> [    0.013512] thermal_sys: Registered thermal governor 'power_allocator'
> [    0.013557] cpuidle: using governor menu
> [    0.013675] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
> [    0.013784] ASID allocator initialised with 65536 entries
> [    0.014630] Serial: AMBA PL011 UART driver
> [    0.017553] Modules: 22496 pages in range for non-PLT usage
> [    0.017556] Modules: 514016 pages in range for PLT usage
> [    0.017980] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages
> [    0.017984] HugeTLB: 0 KiB vmemmap can be freed for a 1.00 GiB page
> [    0.017988] HugeTLB: registered 32.0 MiB page size, pre-allocated 0 pages
> [    0.017990] HugeTLB: 0 KiB vmemmap can be freed for a 32.0 MiB page
> [    0.017993] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
> [    0.017995] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page
> [    0.017997] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages
> [    0.018000] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page
> [    0.018247] Demotion targets for Node 0: null
> [    0.018884] ACPI: Interpreter disabled.
> [    0.019584] iommu: Default domain type: Translated
> [    0.019587] iommu: DMA domain TLB invalidation policy: strict mode
> [    0.019979] SCSI subsystem initialized
> [    0.020174] usbcore: registered new interface driver usbfs
> [    0.020187] usbcore: registered new interface driver hub
> [    0.020200] usbcore: registered new device driver usb
> [    0.020434] pps_core: LinuxPPS API ver. 1 registered
> [    0.020437] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@...ux.it>
> [    0.020443] PTP clock support registered
> [    0.020487] EDAC MC: Ver: 3.0.0
> [    0.020717] scmi_core: SCMI protocol bus registered
> [    0.021039] FPGA manager framework
> [    0.021076] Advanced Linux Sound Architecture Driver Initialized.
> [    0.021612] vgaarb: loaded
> [    0.021857] clocksource: Switched to clocksource arch_sys_counter
> [    0.021967] VFS: Disk quotas dquot_6.6.0
> [    0.021984] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> [    0.022062] pnp: PnP ACPI: disabled
> [    0.026651] NET: Registered PF_INET protocol family
> [    0.026781] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear)
> [    0.028598] tcp_listen_portaddr_hash hash table entries: 2048 (order: 3, 32768 bytes, linear)
> [    0.028615] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
> [    0.028622] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear)
> [    0.028750] TCP bind hash table entries: 32768 (order: 8, 1048576 bytes, linear)
> [    0.029019] TCP: Hash tables configured (established 32768 bind 32768)
> [    0.029096] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear)
> [    0.029124] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes, linear)
> [    0.029225] NET: Registered PF_UNIX/PF_LOCAL protocol family
> [    0.029506] RPC: Registered named UNIX socket transport module.
> [    0.029510] RPC: Registered udp transport module.
> [    0.029512] RPC: Registered tcp transport module.
> [    0.029513] RPC: Registered tcp-with-tls transport module.
> [    0.029515] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [    0.029524] PCI: CLS 0 bytes, default 64
> [    0.029649] Unpacking initramfs...
> [    0.033933] kvm [1]: IPA Size Limit: 40 bits
> [    0.034713] kvm [1]: Hyp mode initialized successfully
> [    0.035476] Initialise system trusted keyrings
> [    0.035582] workingset: timestamp_bits=42 max_order=20 bucket_order=0
> [    0.035747] squashfs: version 4.0 (2009/01/31) Phillip Lougher
> [    0.035906] NFS: Registering the id_resolver key type
> [    0.035919] Key type id_resolver registered
> [    0.035922] Key type id_legacy registered
> [    0.035933] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
> [    0.035935] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
> [    0.036031] 9p: Installing v9fs 9p2000 file system support
> [    0.062587] Key type asymmetric registered
> [    0.062596] Asymmetric key parser 'x509' registered
> [    0.062657] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
> [    0.062661] io scheduler mq-deadline registered
> [    0.062664] io scheduler kyber registered
> [    0.062688] io scheduler bfq registered
> [    0.063318] irq_meson_gpio: 157 to 12 gpio interrupt mux initialized
> [    0.068061] EINJ: ACPI disabled.
> [    0.072570] amlogic_t7_pll_probe
> [    0.072855] amlogic_t7_pll_probe ret 0
> [    0.072943] amlogic_a1_periphs_probe
> [    0.078155] amlogic_a1_periphs_probe ret 0
> [    0.084876] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    0.086691] fe078000.serial: ttyS0 at MMIO 0xfe078000 (irq = 14, base_baud = 1500000) is a meson_uart
> [    0.086710] printk: legacy console [ttyS0] enabled
> [    0.229167] sysfs: cannot create duplicate filename '/class/tty/ttyS0'
> [    0.229669] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 6.8.0-09793-gda876e5b54b3-dirty #15
> [    0.230684] Hardware name: Khadas vim4 (DT)
> [    0.231205] Call trace:
> [    0.231509]  dump_backtrace+0x94/0xec
> [    0.231963]  show_stack+0x18/0x24
> [    0.232374]  dump_stack_lvl+0x78/0x90
> [    0.232829]  dump_stack+0x18/0x24
> [    0.233241]  sysfs_warn_dup+0x64/0x80
> [    0.233696]  sysfs_do_create_link_sd+0xf0/0xf8
> [    0.234248]  sysfs_create_link+0x20/0x40
> [    0.234736]  device_add+0x27c/0x77c
> [    0.235169]  device_register+0x20/0x30
> [    0.235635]  tty_register_device_attr+0xfc/0x240
> [    0.236209]  tty_port_register_device_attr_serdev+0x8c/0xac
> [    0.236902]  serial_core_register_port+0x318/0x658
> [    0.237498]  serial_ctrl_register_port+0x10/0x1c
> [    0.238072]  uart_add_one_port+0x10/0x1c
> [    0.238560]  meson_uart_probe+0x2c0/0x3b4
> [    0.239058]  platform_probe+0x68/0xd8
> [    0.239513]  really_probe+0x148/0x2b4
> [    0.239968]  __driver_probe_device+0x78/0x12c
> [    0.240510]  driver_probe_device+0xdc/0x160
> [    0.241030]  __driver_attach+0x94/0x19c
> [    0.241507]  bus_for_each_dev+0x74/0xd4
> [    0.241983]  driver_attach+0x24/0x30
> [    0.242428]  bus_add_driver+0xe4/0x1e8
> [    0.242893]  driver_register+0x60/0x128
> [    0.243370]  __platform_driver_register+0x28/0x34
> [    0.243955]  meson_uart_platform_driver_init+0x1c/0x28
> [    0.244594]  do_one_initcall+0x6c/0x1b0
> [    0.245071]  kernel_init_freeable+0x1cc/0x294
> [    0.245613]  kernel_init+0x20/0x1dc
> [    0.246046]  ret_from_fork+0x10/0x20
> [    0.246555] meson_uart fe078000.serial: Cannot register tty device on line 0
> [    0.247729] msm_serial: driver initialized
> [    0.248150] SuperH (H)SCI(F) driver initialized
> [    0.248544] STM32 USART driver initialized
> [    0.263927] loop: module loaded
> [    0.264952] megasas: 07.727.03.00-rc1
> [    0.271065] tun: Universal TUN/TAP device driver, 1.6
> [    0.271824] thunder_xcv, ver 1.0
> [    0.271878] thunder_bgx, ver 1.0
> [    0.271956] nicpf, ver 1.0
> [    0.273230] hns3: Hisilicon Ethernet Network Driver for Hip08 Family - version
> [    0.273437] hns3: Copyright (c) 2017 Huawei Corporation.
> [    0.274148] hclge is initializing
> [    0.274541] e1000: Intel(R) PRO/1000 Network Driver
> [    0.275116] e1000: Copyright (c) 1999-2006 Intel Corporation.
> [    0.275860] e1000e: Intel(R) PRO/1000 Network Driver
> [    0.276449] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
> [    0.277209] igb: Intel(R) Gigabit Ethernet Network Driver
> [    0.277867] igb: Copyright (c) 2007-2014 Intel Corporation.
> [    0.278576] igbvf: Intel(R) Gigabit Virtual Function Network Driver
> [    0.279330] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
> [    0.280319] sky2: driver version 1.30
> [    0.281597] VFIO - User Level meta-driver version: 0.3
> [    0.283859] usbcore: registered new interface driver usb-storage
> [    0.286328] i2c_dev: i2c /dev entries driver
> [    0.292404] sdhci: Secure Digital Host Controller Interface driver
> [    0.292481] sdhci: Copyright(c) Pierre Ossman
> [    0.293577] Synopsys Designware Multimedia Card Interface Driver
> [    0.294572] sdhci-pltfm: SDHCI platform and OF driver helper
> [    0.296259] ledtrig-cpu: registered to indicate activity on CPUs
> [    0.298966] meson-sm: secure-monitor enabled
> [    0.299963] usbcore: registered new interface driver usbhid
> [    0.299997] usbhid: USB HID core driver
> [    0.306803] NET: Registered PF_PACKET protocol family
> [    0.306919] 9pnet: Installing 9P2000 support
> [    0.307331] Key type dns_resolver registered
> [    0.318926] Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level
> [    0.319462] registered taskstats version 1
> [    0.319968] Loading compiled-in X.509 certificates
> [    0.362771] clk: Disabling unused clocks
> [    0.363100] PM: genpd: Disabling unused power domains
> [    0.363383] ALSA device list:
> [    0.363580]   No soundcards found.
> [    0.368194] meson-gx-mmc fe08a000.sd: Got CD GPIO
> [    0.368524] SError Interrupt on CPU6, code 0x00000000bf000002 -- SError
> [    0.368531] CPU: 6 PID: 87 Comm: kworker/u32:3 Not tainted 6.8.0-09793-gda876e5b54b3-dirty #15
> [    0.368537] Hardware name: Khadas vim4 (DT)
> [    0.368540] Workqueue: async async_run_entry_fn
> [    0.368552] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> [    0.368556] pc : clk_mux_val_to_index+0x0/0xc0
> [    0.368565] lr : clk_mux_get_parent+0x4c/0x84
> [    0.368571] sp : ffff800082efba10
> [    0.368572] x29: ffff800082efba10 x28: ffff8000823279c0 x27: ffff800082327000
> [    0.368578] x26: ffff000004c361c0 x25: 0000000000000000 x24: 0000000000000002
> [    0.368584] x23: ffff000003f1d300 x22: ffff000003f1d2a0 x21: ffff000004c37280
> [    0.368589] x20: ffff000004c36ec0 x19: ffff000004bba800 x18: 0000000000000020
> [    0.368594] x17: ffff000000022000 x16: 0000000000000003 x15: ffffffffffffffff
> [    0.368599] x14: ffffffffffffffff x13: 0078756d2364732e x12: 3030306138306566
> [    0.368604] x11: 7f7f7f7f7f7f7f7f x10: ffff7fff83438910 x9 : 0000000000000005
> [    0.368609] x8 : 0101010101010101 x7 : 0000000000000000 x6 : 05114367045e5359
> [    0.368613] x5 : 0000000000000006 x4 : 0000000000000000 x3 : 0000000000000000
> [    0.368618] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000004c36ec0
> [    0.368624] Kernel panic - not syncing: Asynchronous SError Interrupt
> [    0.368626] CPU: 6 PID: 87 Comm: kworker/u32:3 Not tainted 6.8.0-09793-gda876e5b54b3-dirty #15
> [    0.368630] Hardware name: Khadas vim4 (DT)
> [    0.368631] Workqueue: async async_run_entry_fn
> [    0.368635] Call trace:
> [    0.368637]  dump_backtrace+0x94/0xec
> [    0.368644]  show_stack+0x18/0x24
> [    0.368649]  dump_stack_lvl+0x38/0x90
> [    0.368656]  dump_stack+0x18/0x24
> [    0.368661]  panic+0x388/0x3c8
> [    0.368666]  nmi_panic+0x48/0x94
> [    0.368670]  arm64_serror_panic+0x6c/0x78
> [    0.368674]  do_serror+0x3c/0x78
> [    0.368677]  el1h_64_error_handler+0x30/0x48
> [    0.368681]  el1h_64_error+0x64/0x68
> [    0.368684]  clk_mux_val_to_index+0x0/0xc0
> [    0.368689]  __clk_register+0x440/0x82c
> [    0.368693]  devm_clk_register+0x5c/0xbc
> [    0.368697]  meson_mmc_clk_init+0x11c/0x2a8
> [    0.368702]  meson_mmc_probe+0x18c/0x3c0
> [    0.368705]  platform_probe+0x68/0xd8
> [    0.368711]  really_probe+0x148/0x2b4
> [    0.368714]  __driver_probe_device+0x78/0x12c
> [    0.368718]  driver_probe_device+0xdc/0x160
> [    0.368721]  __device_attach_driver+0xb8/0x134
> [    0.368724]  bus_for_each_drv+0x84/0xe0
> [    0.368727]  __device_attach_async_helper+0xac/0xd0
> [    0.368730]  async_run_entry_fn+0x34/0xe0
> [    0.368734]  process_one_work+0x150/0x294
> [    0.368740]  worker_thread+0x304/0x408
> [    0.368744]  kthread+0x118/0x11c
> [    0.368748]  ret_from_fork+0x10/0x20
> [    0.368753] SMP: stopping secondary CPUs
> [    0.368760] Kernel Offset: disabled
> [    0.368761] CPU features: 0x0,00000060,d0080000,0200421b
> [    0.368765] Memory Limit: none
> [    0.400328] ---[ end Kernel panic - not syncing: Asynchronous SError Interrupt ]---
> 
> 
> --
> 2.44.0
> 

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