Commit Graph

3 Commits

Author SHA1 Message Date
Arvind Yadav eb59d73cb5 ASoC: codecs: constify snd_soc_dai_ops structures
snd_soc_dai_ops are not supposed to change at runtime. All functions
working with snd_soc_dai_ops provided by <sound/soc-dai.h> work with
const snd_soc_dai_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-18 13:17:48 +01:00
Bhumika Goyal a180ba45b1 ASoC: codecs: add const to snd_soc_codec_driver structures
Declare snd_soc_codec_driver structures as const as they are only passed
as an argument to the function snd_soc_register_codec. This argument is
of type const, so declare the structures with this property as const.
In file codecs/sn95031.c, snd_soc_codec_driver structure is also used in
a copy operation along with getting passed to snd_soc_register_codec.
So, it can be made const too.
Done using Coccinelle:

@match disable optional_qualifier@
identifier s;
position p;
@@
static struct snd_soc_codec_driver s@p={...};

@good1@
identifier match.s;
position p;
@@
snd_soc_register_codec(...,&s@p,...)

@bad@
identifier match.s;
position p!={match.p,good1.p};
@@
s@p

@depends on !bad disable optional_qualifier@
identifier match.s;
@@
static
+const
struct snd_soc_codec_driver s={...};

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-08-10 16:10:50 +01:00
Daniel Drake b8b88b7087 ASoC: add es8316 codec driver
Add a codec driver for the Everest ES8316, based on code provided by
David Yang from Everest Semi.

I limited the functionality to items where the vendor code was clear,
and things that can be tested on the Weibu F3C (Intel Cherry Trail).
As a result the initial implementation only supports running in slave
mode at single speed (up to 48kHz sample rate) using I2S. HPD is not
supported.

Signed-off-by: David Yang <yangxiaohua@everest-semi.com>
[drake@endlessm.com: significant cleanups and simplifications,
                     remove dead/unclear code]
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-06-13 19:30:53 +01:00