[PATCH 0/4] spi: fix sticky -EINVAL after PM runtime resume failure

[Praveen Talari]

When pm_runtime_get_sync() fails, the RPM core sets power.runtime_error,
causing every subsequent get call to return -EINVAL without attempting
the resume. This makes the controller permanently unusable until rebound,
requiring a driver rebind to recover.

Fixes the missing pm_runtime_set_suspended() calls in the SPI core and
the qcom-geni driver to clear runtime_error on failure, allowing the next
transfer to retry the resume.

Symptoms observed:
    spi_master spi2: Failed to power device: -110
    spi_master spi2: noqueue transfer failed
    geni_spi 988000.spi: Runtime PM usage count underflow!
    spi_master spi2: Failed to power device: -22
    spi_master spi2: noqueue transfer failed

Signed-off-by: Praveen Talari <praveen.talari@xxxxxxxxxxxxxxxx>
---
Praveen Talari (4):
      PM: runtime: Clear runtime_error on supplier after failed get_sync
      spi: core: fix sticky -EINVAL after pm_runtime_get_sync() failure
      spi: qcom-geni: Fix missing error check on pm_runtime_get_sync()
      spi: qcom-geni: fix sticky -EINVAL after PM runtime resume failure

 drivers/base/power/runtime.c |  1 +
 drivers/spi/spi-geni-qcom.c  | 18 +++++++++++-------
 drivers/spi/spi.c            |  3 +++
 3 files changed, 15 insertions(+), 7 deletions(-)
---
base-commit: 4e5dfb7c84012007c3c7061126491bbc92d71bf1
change-id: 20260625-fix_sticky_-einval_after_pm_runtime_api_failure-6797d0a5c4d0

Best regards,
--  
Praveen Talari <praveen.talari@xxxxxxxxxxxxxxxx>