mbox series

[v2,0/4] Add more devm_ functions to simplify probe path in drivers/spi/atmel-quadspi.c

Message ID 20250124085221.766303-4-csokas.bence@prolan.hu
Headers show
Series Add more devm_ functions to simplify probe path in drivers/spi/atmel-quadspi.c | expand

Message

Bence Csókás Jan. 24, 2025, 8:52 a.m. UTC 
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. 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 and 2 of this series. Patch 3
and 4 then use these APIs to simplify and fix the probe() function.

Change in v2: rebased onto Linus' master, which is:
commit bc8198dc7ebc ("Merge tag 'sched_ext-for-6.14' of
 git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext")

Bence Csókás (4):
  dma: Add devm_dma_request_chan()
  pm: runtime: Add new devm functions
  spi: atmel-quadspi: Use `devm_dma_request_chan()`
  spi: atmel-quadspi: Fix unbalanced pm_runtime by using devm_ API

 drivers/base/power/runtime.c | 36 +++++++++++++++++++++
 drivers/dma/dmaengine.c      | 30 +++++++++++++++++
 drivers/spi/atmel-quadspi.c  | 62 ++++++++++--------------------------
 include/linux/dmaengine.h    |  7 ++++
 include/linux/pm_runtime.h   |  4 +++
 5 files changed, 93 insertions(+), 46 deletions(-)