[PATCH 0/9] soundwire: amd: introduce hw_ops dispatch and consolidate probe setup

[Vijendar Mukunda <Vijendar.Mukunda@amd.com>]

This series refactors the AMD SoundWire manager driver to replace
direct calls to ACP6.3-specific hardware functions with a
function-pointer dispatch table (struct amd_sdw_hw_ops). The goal is
to make adding support for new ACP revisions a matter of registering a
revision-specific ops table rather than scattering switch/case
statements across the driver.

The series also consolidates probe-time revision-specific assignments
into explicit switch blocks, replaces fixed-size arrays in
sdw_amd_ctx with dynamically-allocated ones sized from the ACP
revision, and cleans up a few stale symbols and redundant
initialisations.

Background:

The AMD SoundWire IP block was introduced on ACP6.3 and is shared
by ACP7.0, ACP7.1 and ACP7.2 with minor register-level differences.
The driver previously used a flat, hardcoded naming scheme
(amd_sdw_*) with no mechanism to swap hardware implementations per
revision. The amd_acp63_* prefix and the hw_ops dispatch table
introduced here make the per-revision nature explicit and provide a
clean extension point for future platforms.

Series overview:

Patches 1-3 are preparatory: rename the manager-count macro to carry
the ACP6.3 scope, convert the pdevinfo/sdw_pdata and pdev arrays in
sdw_amd_probe_controller() from fixed-size stack/inline arrays to
heap allocations sized by the ACP revision, ensuring the probe path
is ready for revisions with a different manager count.

Patch 4 renames the revision-specific hardware-access functions,
static op-table instances, and the manager register-offset constant
to the amd_acp63_* / ACP63_* prefix. Patch 5 removes an unused
define left over from an earlier refactor.

Patches 6-8 introduce and wire up the hw_ops dispatch framework:
patch 6 defines struct amd_sdw_hw_ops and the inline acp_*() dispatch
helpers; patch 7 converts the irq/work handlers to take
struct amd_sdw_manager * so they fit the hw_ops callback signature;
patch 8 extracts the PM callbacks into hw_ops slots, populates a
static const amd_acp63_hw_ops table covering all 19 callbacks, and
converts every remaining direct amd_acp63_*() call site to use the
corresponding acp_*() wrapper.

Patch 9 consolidates the remaining revision-specific probe assignments
(mmio offset, bus ops, port ops, compute_params, port_offset_map) into
a single acp_rev switch, and removes the redundant early
initialisation of cols_index and rows_index since
acp_sdw_clk_init_ctrl() always sets them before set_frameshape() is
called.

Dependencies:

This series applies on top of the AMD SoundWire fix series posted at:
https://lore.kernel.org/alsa-devel/20260917083732.3803526-1-Vijendar.Mukunda@amd.com/T/#t

Vijendar Mukunda (9):
  soundwire: amd: rename AMD_SDW_MAX_MANAGER_COUNT macro
  soundwire: amd: allocate pdevinfo and sdw_pdata by ACP revision in
    probe
  soundwire: amd: allocate sdw_amd_ctx pdev array dynamically
  soundwire: amd: rename hardware backend functions to amd_acp63_*()
    prefix
  soundwire: amd: remove unused AMD_SDW_MAX_FREQ_NUM define
  soundwire: amd: introduce struct amd_sdw_hw_ops dispatch framework
  soundwire: amd: convert irq/work handlers to hw_ops callbacks
  soundwire: amd: wire amd_acp63_*() call sites through acp_*() helpers
  soundwire: amd: consolidate revision-specific probe setup

 drivers/soundwire/amd_init.c      |  49 +++-
 drivers/soundwire/amd_manager.c   | 471 ++++++++++++++++++------------
 drivers/soundwire/amd_manager.h   | 203 ++++++++++++-
 include/linux/soundwire/sdw_amd.h |   9 +-
 4 files changed, 533 insertions(+), 199 deletions(-)

-- 
2.48.1