i3c: dw: Add infrastructure for platform-specific implementations

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The dw i3c core can be integrated into various SoC devices. Platforms
that use this core may need a little configuration that is specific to
that platform.

Add some infrastructure to allow platform-specific behaviour: common
probe/remove functions, a set of platform hook operations, and a pointer
for platform-specific data in struct dw_i3c_master. Move the common api
into a new (i3c local) header file.

Platforms will provide their own struct platform_driver, which allocates
struct dw_i3c_master, does any platform-specific probe behaviour, and
calls into the common probe.

A future change will add new platform support that uses this
infrastructure.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230331091501.3800299-2-jk@codeconstruct.com.au
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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Jeremy Kerr 2023-03-31 17:14:59 +08:00 • committed by Alexandre Belloni

parent 66b32e3d2c

commit d782188cbb

2 changed files with 97 additions and 34 deletions

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77

drivers/i3c/master/dw-i3c-master.c

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54

drivers/i3c/master/dw-i3c-master.h

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