From: Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@kernel.org>
To: Mark Brown <broonie@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
linux-kernel@vger.kernel.org, driver-core@lists.linux.dev,
maple-tree@lists.infradead.org, asahi@lists.linux.dev,
Michael Reeves <michael.reeves077@gmail.com>
Subject: [PATCH v2 0/2] regmap: Fix cache lifecycle locking and teardown
Date: Sun, 04 Oct 2026 23:38:41 +1100 [thread overview]
Message-ID: <20261004-regcache-lifecycle-submit-v2-0-976d405e89a7@gmail.com> (raw)
Fix an "Invalid wait context" lockdep warning during Apple GPIO probe and
correct debugfs ordering during cache teardown.
Tested on Apple M3 MacBook Air (T8122):
- All 4 GPIO controllers probe successfully with lockdep enabled.
- The "Invalid wait context" warning no longer occurs.
- The regmap KUnit suite passes and lockdep remains enabled.
---
Changes in v2:
- Link to v1: https://lore.kernel.org/r/20260925-regcache-lifecycle-submit-v1-1-83b75ca79d96@gmail.com
- Make Maple cache teardown IRQ-safe.
- Fix debugfs ordering during cache teardown and reinitialization.
- Rebase onto the latest upstream tree.
---
Michael Reeves (2):
regmap: Remove debugfs before cache teardown
regmap: Drop map lock during cache init and exit
drivers/base/regmap/regcache-maple.c | 5 +++--
drivers/base/regmap/regcache.c | 6 ------
drivers/base/regmap/regmap-debugfs.c | 1 +
drivers/base/regmap/regmap.c | 15 +++++++++------
4 files changed, 13 insertions(+), 14 deletions(-)
---
base-commit: 6addb4f385570ebc11c4eb499a4f1c149f313e84
change-id: 20260925-regcache-lifecycle-submit-74f366be0fbc
Best regards,
--
Michael Reeves <michael.reeves077@gmail.com>
next reply other threads:[~2026-10-04 12:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-04 12:38 Michael Reeves via B4 Relay [this message]
2026-10-04 12:38 ` [PATCH v2 1/2] regmap: Remove debugfs before cache teardown Michael Reeves via B4 Relay
2026-10-04 12:38 ` [PATCH v2 2/2] regmap: Drop map lock during cache init and exit Michael Reeves via B4 Relay
2026-10-05 12:03 ` Mark Brown
2026-10-05 15:49 ` Liam R. Howlett
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