[    1.328938] WARNING: CPU: 8 PID: 462 at drivers/gpu/drm/drm_atomic_state_helper.c:174 drm_atomic_helper_crtc_duplicate_state+0x58/0x74
[    1.328943] Modules linked in: hci_bcm4377(+) bluetooth sdhci_pci cqhci brcmfmac(+) sdhci brcmutil ecdh_generic ecc mmc_core snd_soc_macaudio apple_piodma(+) appledrm ofpart spi_nor snd_soc_cs42l84 snd_soc_tas2764 asahi snd_soc_apple_mca apple_admac macsmc_reboot(+) macsmc_hid macsmc_power apple_dcp drm_dma_helper pwm_apple cfg80211 rfkill clk_apple_nco apple_soc_cpufreq leds_pwm joydev crypto_user fuse hid_magicmouse hid_apple nvmem_spmi_mfd simple_mfd_spmi spi_hid_apple_of spi_hid_apple tps6598x rtc_macsmc gpio_macsmc regmap_spmi phy_apple_atc dwc3 pcie_apple typec udc_core pci_host_common nvme_apple spi_apple i2c_apple apple_sart apple_dart nvmem_apple_efuses macsmc_rtkit apple_rtkit macsmc apple_mailbox spmi_apple_controller pinctrl_apple_gpio mfd_core
[    1.328963] CPU: 8 PID: 462 Comm: systemd-backlig Tainted: G S      W          6.2.0-rc3-asahi-6-1-edge-ARCH #2
[    1.328965] Hardware name: Apple MacBook Pro (14-inch, M1 Pro, 2021) (DT)
[    1.328966] pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[    1.328967] pc : drm_atomic_helper_crtc_duplicate_state+0x58/0x74
[    1.328968] lr : drm_atomic_get_crtc_state+0x84/0x120
[    1.328970] sp : ffff80000a893b70
[    1.328970] x29: ffff80000a893b70 x28: ffff000011680000 x27: 0000000000000000
[    1.328972] x26: 0000000000000000 x25: 0000000000000000 x24: ffff00001b141720
[    1.328973] x23: 0000000000000038 x22: 0000000000000000 x21: ffff00000e79d800
[    1.328974] x20: ffff00000e79d800 x19: ffff000013f71080 x18: 0000000000000000
[    1.328975] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffe2f51cf0
[    1.328977] x14: 0000000000000000 x13: 0000000000000000 x12: ffff80000a893cd0
[    1.328978] x11: ffff000013f73c80 x10: ffff000093f73c7f x9 : 0000000000000000
[    1.328979] x8 : ffff000013f73a00 x7 : 0000000000000000 x6 : 000000000000003f
[    1.328980] x5 : 0000000000000040 x4 : ffff80000a893b60 x3 : ffff000011680000
[    1.328981] x2 : 0000000000000000 x1 : ffff80000874f250 x0 : 0000000000000000
[    1.328982] Call trace:
[    1.328983]  drm_atomic_helper_crtc_duplicate_state+0x58/0x74
[    1.328984]  drm_atomic_get_crtc_state+0x84/0x120
[    1.328985]  dcp_set_brightness+0xd8/0x21c [apple_dcp]
[    1.328991]  backlight_device_set_brightness+0x78/0x130
[    1.328993]  brightness_store+0x74/0x90
[    1.328995]  dev_attr_store+0x18/0x30
[    1.328996]  sysfs_kf_write+0x44/0x54
[    1.328999]  kernfs_fop_write_iter+0x120/0x1f0
[    1.329001]  vfs_write+0x1ac/0x36c
[    1.329002]  ksys_write+0x6c/0x100
[    1.329003]  __arm64_sys_write+0x1c/0x30
[    1.329004]  invoke_syscall.constprop.0+0x50/0xec
[    1.329006]  do_el0_svc+0xbc/0xe0
[    1.329008]  el0_svc+0x30/0x120
[    1.329010]  el0t_64_sync_handler+0xf4/0x120
[    1.329011]  el0t_64_sync+0x190/0x194
[    1.329012] ---[ end trace 0000000000000000 ]---