[PATCH 0/8] soundwire: amd: SoundWire manager driver bug fixes

[Vijendar Mukunda]

This series collects eight bug fixes for the AMD SoundWire manager
driver (ACP6.3/7.0/7.1/7.2). The patches address correctness issues
in command response handling, slave status caching, work-queue teardown
ordering, resource cleanup on probe failure, and power-management
suspend/resume sequences.

Patch 1 fixes a silent type widening in amd_sdw_send_cmd_get_resp()
where -ETIMEDOUT was returned through a u64, producing a large positive
value instead of an error.

Patch 2 caches the last successful ping slave status so that a command
timeout during sdw_show_ping_status() does not report a spurious
"no peripherals attached" warning.

Patch 3 fixes the work-drain sequence in amd_sdw_manager_remove(): the
interrupt delivery gate must be closed before cancel_work_sync() to
prevent an in-flight IRQ handler from re-queuing work after the cancel
returns. A pm_runtime_disable() imbalance on partially-started managers
is also corrected.

Patch 4 adds the missing sdw_amd_exit() call and ctx pointer clear on
the sdw_amd_startup() failure path in sdw_amd_probe().

Patch 5 propagates the amd_init_sdw_manager() return value in
amd_resume_runtime() instead of ignoring it.

Patch 6 removes the amd_deinit_sdw_manager() helper and expands its
two call sites in the POWER_OFF suspend path to direct calls, making
the sequence explicit with no functional change.

Patch 7 replaces open-ended acp_rev >= ACP70_PCI_REV_ID comparisons
in the PM callbacks with explicit per-revision handling covering
ACP63, ACP70, ACP71 and ACP72, with a dev_err + -EINVAL default. The
repeated host-wake-by-revision block is factored into a helper,
amd_sdw_host_wake_enable_by_rev().

Patch 8 fixes the interrupt gate and work drain ordering in all four
suspend mode/path combinations: the ACP_EXTERNAL_INTR_CNTL gate must
be closed before cancel_work_sync() calls to prevent a racing ISR from
re-queuing work after the drain completes.

Vijendar Mukunda (8):
  soundwire: amd: fix SDW command timeout return value handling
  soundwire: amd: cache ping slave status to avoid spurious disconnect
    on timeout
  soundwire: amd: fix work drain ordering and pm_runtime guard in remove
    path
  soundwire: amd: fix ctx leak when sdw_amd_startup() fails
  soundwire: amd: propagate amd_init_sdw_manager() error on resume
  soundwire: amd: drop amd_deinit_sdw_manager() in POWER_OFF suspend
  soundwire: amd: replace >= ACP70 with explicit switch/case in PM paths
  soundwire: amd: fix interrupt gate and work drain ordering in PM ops

 drivers/soundwire/amd_init.c      |   9 +-
 drivers/soundwire/amd_manager.c   | 204 ++++++++++++++++++++----------
 include/linux/soundwire/sdw_amd.h |   3 +
 3 files changed, 148 insertions(+), 68 deletions(-)

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2.48.1