[PATCH v5 0/2] Add more devm_ functions to fix PM imbalance in spi/atmel-quadspi.c
From: Bence Csókás
Date: Mon Mar 17 2025 - 05:35:26 EST
The probe() function of the atmel-quadspi driver got quite convoluted,
especially since the addition of SAMA7G5 support, that was forward-ported
from an older vendor kernel. During the port, a bug was introduced, where
the PM get() and put() calls were imbalanced. To alleivate this - and
similar problems in the future - an effort was made to migrate as many
functions as possible, to their devm_ managed counterparts. The few
functions, which did not yet have a devm_ variant, are added in patch 1 of
this series. Patch 2 then uses these APIs to fix the probe() function.
Change in v4:
* the DMA cleanup was split out and will be submitted separately for 6.15
Change in v5:
* rebased to linux-pm/linux-next, will now target 6.15
Links to previous versions:
pre-series:
https://lore.kernel.org/linux-kernel/20250114222851.1023194-1-csokas.bence@xxxxxxxxx/
v1:
https://lore.kernel.org/linux-kernel/20250115160244.1102881-1-csokas.bence@xxxxxxxxx/
v2:
https://lore.kernel.org/linux-kernel/20250124085221.766303-8-csokas.bence@xxxxxxxxx/
v3:
https://lore.kernel.org/linux-kernel/20250207124802.165408-1-csokas.bence@xxxxxxxxx/
v4:
https://lore.kernel.org/linux-kernel/20250210111008.248929-1-csokas.bence@xxxxxxxxx/
Bence Csókás (2):
pm: runtime: Add new devm functions
spi: atmel-quadspi: Fix unbalanced pm_runtime by using devm_ API
drivers/base/power/runtime.c | 36 ++++++++++++++++++++++++++++++++++++
drivers/spi/atmel-quadspi.c | 18 +++++-------------
include/linux/pm_runtime.h | 4 ++++
3 files changed, 45 insertions(+), 13 deletions(-)
--
2.48.1