From: Daniel Bozeman <daniel@orb.net>
To: shawn.lin@rock-chips.com, finley.xiao@rock-chips.com,
ulf.hansson@linaro.org, heiko@sntech.de,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] pmdomain/rockchip: skip QoS operations for idle-only domains
Date: Fri, 3 Apr 2026 21:27:18 +0000 [thread overview]
Message-ID: <adAwtiaU-32qjRRE@claude-dev> (raw)
In-Reply-To: <fbf16b5a-1565-39c9-0d92-33a7a577212f@rock-chips.com>
I ran both tests you requested:
Test 1: Added pr_err to rockchip_pd_power_on/off to identify
the crashing domain. With patch 2 only (skip EPROBE_DEFER),
the crash occurs on PD_VO:
rockchip_pd_power_off: vo pwr_mask=0x0
Internal error: synchronous external abort: 0000000096000010
Workqueue: pm genpd_power_off_work_fn
Call trace:
regmap_mmio_read32le+0x8/0x20
_regmap_bus_reg_read+0x6c/0xac
_regmap_read+0x60/0xd8
regmap_read+0x4c/0x7c
rockchip_pmu_set_idle_request.isra.0+0x98/0x16c
rockchip_pd_power+0x130/0x48c
rockchip_pd_power_off+0x38/0x48
genpd_power_off.isra.0+0x1f0/0x2f0
genpd_power_off_work_fn+0x34/0x54
Test 2: Same debug build, booted with clk_ignore_unused
added to kernel cmdline via U-Boot. Same crash, same domain:
rockchip_pd_power_off: vo pwr_mask=0x0
Internal error: synchronous external abort: 0000000096000010
(identical call trace)
The crash occurs even with clk_ignore_unused. The QoS
registers for PD_VO are inaccessible when genpd attempts
to power off this idle-only domain.
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next prev parent reply other threads:[~2026-04-03 21:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-31 18:02 [PATCH 1/2] pmdomain/rockchip: skip QoS operations for idle-only domains Daniel Bozeman
2026-03-31 18:02 ` [PATCH 2/2] pmdomain/rockchip: skip domains returning -EPROBE_DEFER Daniel Bozeman
2026-04-01 1:17 ` [PATCH 1/2] pmdomain/rockchip: skip QoS operations for idle-only domains Shawn Lin
[not found] ` <CAG+Ngm+xJCCQMPddZx8AbPEeH3rUrn3GKF575zXpGPJrnELvMw@mail.gmail.com>
2026-04-01 2:54 ` Shawn Lin
2026-04-01 6:13 ` Daniel Bozeman
2026-04-01 7:11 ` Shawn Lin
2026-04-03 21:27 ` Daniel Bozeman [this message]
2026-04-04 11:40 ` Shawn Lin
2026-04-04 22:42 ` Daniel Bozeman
2026-04-05 23:29 ` Jonas Karlman
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