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Shawn Lin 5737b279a2 pmdomain: rockchip: Fix PD_VCODEC for RK3588 
commit 0fb59eaca1 upstream.

>From the RK3588 TRM Table 7-1 RK3588 Voltage Domain and Power Domain Summary,
PD_RKVDEC0/1 and PD_VENC0/1 rely on VD_VCODEC which require extra voltages to
be applied, otherwise it breaks RK3588-evb1-v10 board after vdec support landed[1].
The panic looks like below:

  rockchip-pm-domain fd8d8000.power-management:power-controller: failed to set domain 'rkvdec0' on, val=0
  rockchip-pm-domain fd8d8000.power-management:power-controller: failed to set domain 'rkvdec1' on, val=0
  ...
  Hardware name: Rockchip RK3588S EVB1 V10 Board (DT)
  Workqueue: pm genpd_power_off_work_fn
  Call trace:
  show_stack+0x18/0x24 (C)
  dump_stack_lvl+0x40/0x84
  dump_stack+0x18/0x24
  vpanic+0x1ec/0x4fc
  vpanic+0x0/0x4fc
  check_panic_on_warn+0x0/0x94
  arm64_serror_panic+0x6c/0x78
  do_serror+0xc4/0xcc
  el1h_64_error_handler+0x3c/0x5c
  el1h_64_error+0x6c/0x70
  regmap_mmio_read32le+0x18/0x24 (P)
  regmap_bus_reg_read+0xfc/0x130
  regmap_read+0x188/0x1ac
  regmap_read+0x54/0x78
  rockchip_pd_power+0xcc/0x5f0
  rockchip_pd_power_off+0x1c/0x4c
  genpd_power_off+0x84/0x120
  genpd_power_off+0x1b4/0x260
  genpd_power_off_work_fn+0x38/0x58
  process_scheduled_works+0x194/0x2c4
  worker_thread+0x2ac/0x3d8
  kthread+0x104/0x124
  ret_from_fork+0x10/0x20
  SMP: stopping secondary CPUs
  Kernel Offset: disabled
  CPU features: 0x3000000,000e0005,40230521,0400720b
  Memory Limit: none
  ---[ end Kernel panic - not syncing: Asynchronous SError Interrupt ]---

Chaoyi pointed out the PD_VCODEC is the parent of PD_RKVDEC0/1 and PD_VENC0/1, so checking
the PD_VCODEC is enough.

[1] https://lore.kernel.org/linux-rockchip/20251020212009.8852-2-detlev.casanova@collabora.com/

Fixes: db6df2e3fc ("pmdomain: rockchip: add regulator support")
Cc: stable@vger.kernel.org
Suggested-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Chaoyi Chen <chaoyi.chen@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-03-19 16:08:37 +01:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
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Please read the Documentation/process/changes.rst file, as it contains the
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