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Add struct sdca_class_ops with a populate_function callback that lets
codec drivers supply the SDCA topology (entities, clusters,
init_table, ...) from static tables in place of sdca_parse_function()
on DT/non-DisCo platforms. The callback is a pure data source and
performs no bus I/O.
Codec drivers embed sdca_class_drv in their own priv and register
their populate_function through class_ops passed to
sdca_class_probe().
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260925161049.758913-5-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Split the internal class_sdw_probe/class_sdw_remove functions into
caller-friendly library helpers:
sdca_class_probe(sdw, drv)
sdca_class_remove(drv)
The class_sdw_probe/class_sdw_remove callbacks of the built-in
class_sdw_driver are now thin wrappers that allocate a bare
sdca_class_drv, stash it in drvdata, and defer to the exported
helpers.
The exported sdca_class_probe() takes a caller-owned struct
sdca_class_drv * so codec-specific SoundWire drivers can embed the
class state in their own priv struct, own dev_set_drvdata() themselves,
and avoid a second allocation. No functional change for the built-in
driver.
This lays the groundwork for codec-specific SDCA SoundWire drivers
that want to compose the class-side probe with their own quirks; the
next patches add the class_ops mechanism on top.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260925161049.758913-4-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The class PM callbacks pull sdca_class_drv out of drvdata, so the
built-in class_sdw_driver owns the drvdata slot. That works for the
generic case but blocks codec drivers that want to embed
sdca_class_drv in their own private struct -- they need drvdata for
their codec priv.
Split the four callbacks into exported helpers that take a
struct sdca_class_drv * directly:
sdca_class_system_suspend()
sdca_class_system_resume()
sdca_class_runtime_suspend()
sdca_class_runtime_resume()
Codec drivers can now compose these into their own dev_pm_ops without
going through drvdata.
For the built-in class_sdw_driver, add small dev_pm_ops wrappers that
fetch drv from drvdata and wire them into sdca_class_pm_ops. The ops
struct itself stays private to this file; codec drivers build their
own dev_pm_ops from the four exported helpers above.
No functional change: the built-in class_sdw_driver keeps the same PM
semantics; only the internal plumbing shifts to operate on
sdca_class_drv instead of struct device *dev.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260925161049.758913-3-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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