ASoC: cs43130: Constify snd_soc_component_driver struct

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In order to constify `snd_soc_component_driver` struct, duplicate
`soc_component_dev_cs43130` into a `soc_component_dev_cs43130_digital` and
`soc_component_dev_cs43130_analog`.

These 2 new structures share the same .dapm_widgets and .dapm_routes
arrays but differ for .num_dapm_widgets and .num_dapm_routes.

In the digital case, the last entries are not taken into account.

Doing so has several advantages:
  - `snd_soc_component_driver` can be declared as const to move their
    declarations to read-only sections.
  - code in the probe is simpler. There is no need to concatenate some
    arrays to handle the "analog" case
  - this saves some memory because all_hp_widgets and analog_hp_routes can
    be removed.

Before :
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   text	   data	    bss	    dec	    hex	filename
  53965	   8265	   4512	  66742	  104b6	sound/soc/codecs/cs43130.o

After :
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   text	   data	    bss	    dec	    hex	filename
  54409	   7881	     64	  62354	   f392	sound/soc/codecs/cs43130.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/1f04bb0366d9640d7ee361dae114ff79e4b381c1.1722274212.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Christophe JAILLET 2024-07-29 19:36:05 +02:00 • committed by Mark Brown

parent a1c2716738

commit 839e231a53

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sound/soc/codecs/cs43130.c

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