[PATCH 6.12.y 0/2] spi: cadence-quadspi: fix probe error path and remove

[Diogo Ivo (Schneider Electric)]

This series fixes two resource leaks in the cadence-quadspi driver's
probe error path and remove callback.

Patch 1 fixes an imbalanced pm_runtime_enable()/pm_runtime_disable()
pair: when probe defers after cqspi_request_mmap_dma(),
pm_runtime_disable() is called without a prior pm_runtime_enable().
It also adds the missing pm_runtime_dont_use_autosuspend() in both
the probe error path and the remove callback and a missing
pm_runtime_put_noidle() in the probe error path. This consolidates
fixes from upstream commits 5ff4d5d1af0c and 5e8bb0cc72f1.

Patch 2 fixes a DMA channel leak: when spi_register_controller() fails,
the channel acquired via cqspi_request_mmap_dma() is never released.
A dedicated error label is added to release it before the runtime PM
teardown. This fix is one part of upstream commit f18c8cfa4f1a.

Signed-off-by: Diogo Ivo (Schneider Electric) <diogo.ivo@xxxxxxxxxxx>
---
Diogo Ivo (Schneider Electric) (2):
      spi: cadence-quadspi: fix runtime pm cleanup on probe failure/unbind
      spi: cadence-quadspi: release DMA channel on probe failure

 drivers/spi/spi-cadence-quadspi.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
---
base-commit: 7351870f56cba79097a2ab57e609469719ea4f73
change-id: 20260730-cqspi-pm_runtime-a8a1c6122944

Best regards,
--  
Diogo Ivo <diogo.ivo@xxxxxxxxxxx>