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ASoC: simple-card: cleanup graph_for_each_link()

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simple-card checks DT links 2 times. 1st is for counting DAIs / links
to allocating memory, 2nd is for detecting DAIs.
To detecting DAIs as CPU-dummy -> dummy-Codec order when DPCM case,
it uses  loops 2 times.
Because of this kind of complex background, it needs to use local
varuable for it, and each call-back functions need to care about it.

Now, 1st and 2nd DT link check are using same order,
thus we can share same code. This patch do it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/875z1e1tov.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2021-03-26 12:26:40 +09:00 committed by Mark Brown
parent a6e8798061
commit 39af7f7a03
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 61 additions and 64 deletions
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125
sound/soc/generic/simple-card.c
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@ -129,15 +129,6 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
char *prefix = "";
int ret;
/*
* |CPU |Codec : turn
* CPU |Pass |return
* Codec |return|Pass
* np
*/
if (li->cpu == (np == codec))
return 0;
dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
li->link++;
@ -260,15 +251,6 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv,
char *prefix = "";
int ret, single_cpu;
/*
* |CPU |Codec : turn
* CPU |Pass |return
* Codec |return|return
* np
*/
if (!li->cpu || np == codec)
return 0;
cpu = np;
node = of_get_parent(np);
li->link++;
@ -342,7 +324,7 @@ dai_link_of_err:
return ret;
}
static int simple_for_each_link(struct asoc_simple_priv *priv,
static int __simple_for_each_link(struct asoc_simple_priv *priv,
struct link_info *li,
int (*func_noml)(struct asoc_simple_priv *priv,
struct device_node *np,
@ -402,11 +384,26 @@ static int simple_for_each_link(struct asoc_simple_priv *priv,
*/
if (dpcm_selectable &&
(num > 2 ||
adata.convert_rate || adata.convert_channels))
ret = func_dpcm(priv, np, codec, li, is_top);
adata.convert_rate || adata.convert_channels)) {
/*
* np
* |1(CPU)|0(Codec) li->cpu
* CPU |Pass |return
* Codec |return|Pass
*/
if (li->cpu != (np == codec))
ret = func_dpcm(priv, np, codec, li, is_top);
/* else normal sound */
else
ret = func_noml(priv, np, codec, li, is_top);
} else {
/*
* np
* |1(CPU)|0(Codec) li->cpu
* CPU |Pass |return
* Codec |return|return
*/
if (li->cpu && (np != codec))
ret = func_noml(priv, np, codec, li, is_top);
}
if (ret < 0) {
of_node_put(codec);
@ -424,6 +421,39 @@ static int simple_for_each_link(struct asoc_simple_priv *priv,
return ret;
}
static int simple_for_each_link(struct asoc_simple_priv *priv,
struct link_info *li,
int (*func_noml)(struct asoc_simple_priv *priv,
struct device_node *np,
struct device_node *codec,
struct link_info *li, bool is_top),
int (*func_dpcm)(struct asoc_simple_priv *priv,
struct device_node *np,
struct device_node *codec,
struct link_info *li, bool is_top))
{
int ret;
/*
* Detect all CPU first, and Detect all Codec 2nd.
*
* In Normal sound case, all DAIs are detected
* as "CPU-Codec".
*
* In DPCM sound case,
* all CPUs are detected as "CPU-dummy", and
* all Codecs are detected as "dummy-Codec".
* To avoid random sub-device numbering,
* detect "dummy-Codec" in last;
*/
for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
ret = __simple_for_each_link(priv, li, func_noml, func_dpcm);
if (ret < 0)
break;
}
return ret;
}
static int simple_parse_of(struct asoc_simple_priv *priv)
{
struct device *dev = simple_priv_to_dev(priv);
@ -449,25 +479,11 @@ static int simple_parse_of(struct asoc_simple_priv *priv)
/* Single/Muti DAI link(s) & New style of DT node */
memset(&li, 0, sizeof(li));
for (li.cpu = 1; li.cpu >= 0; li.cpu--) {
/*
* Detect all CPU first, and Detect all Codec 2nd.
*
* In Normal sound case, all DAIs are detected
* as "CPU-Codec".
*
* In DPCM sound case,
* all CPUs are detected as "CPU-dummy", and
* all Codecs are detected as "dummy-Codec".
* To avoid random sub-device numbering,
* detect "dummy-Codec" in last;
*/
ret = simple_for_each_link(priv, &li,
simple_dai_link_of,
simple_dai_link_of_dpcm);
if (ret < 0)
return ret;
}
ret = simple_for_each_link(priv, &li,
simple_dai_link_of,
simple_dai_link_of_dpcm);
if (ret < 0)
return ret;
ret = asoc_simple_parse_card_name(card, PREFIX);
if (ret < 0)
@ -483,15 +499,6 @@ static int simple_count_noml(struct asoc_simple_priv *priv,
struct device_node *codec,
struct link_info *li, bool is_top)
{
/*
* |CPU |Codec : turn
* CPU |Pass |return
* Codec |return|return
* np
*/
if (!li->cpu || np == codec)
return 0;
li->link += 1;
li->dais += 2;
@ -503,15 +510,6 @@ static int simple_count_dpcm(struct asoc_simple_priv *priv,
struct device_node *codec,
struct link_info *li, bool is_top)
{
/*
* |CPU |Codec : turn
* CPU |Pass |return
* Codec |return|Pass
* np
*/
if (li->cpu == (np == codec))
return 0;
if (li->cpu) {
li->link++; /* CPU-dummy */
li->dais++;
@ -583,10 +581,9 @@ static void simple_get_dais_count(struct asoc_simple_priv *priv,
return;
}
for (li->cpu = 1; li->cpu >= 0; li->cpu--)
simple_for_each_link(priv, li,
simple_count_noml,
simple_count_dpcm);
simple_for_each_link(priv, li,
simple_count_noml,
simple_count_dpcm);
dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
li->link, li->dais, li->conf);