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Date: Wed, 15 Jan 2014 16:51:41 +0100
From: Jean-Francois Moine <moinejf@...e.fr>
To: Mark Brown <broonie@...nel.org>, lgirdwood@...il.com
Cc: alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
kuninori.morimoto.gx@...esas.com, Xiubo Li <Li.Xiubo@...escale.com>
Subject: [PATCH v2 3/8] ASoC: simple-card: simplify code
The OF pointers are put in the stack and then copied to the card
descriptor.
Put them directly at their right place.
Signed-off-by: Jean-Francois Moine <moinejf@...e.fr>
---
sound/soc/generic/simple-card.c | 55 ++++++++--------------
1 file changed, 20 insertions(+), 35 deletions(-)
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 7c5dc73..89f83b3 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -60,8 +60,9 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
static int
asoc_simple_card_sub_parse_of(struct device_node *np,
struct asoc_simple_dai *dai,
- struct device_node **node)
+ const struct device_node **p_node)
{
+ struct device_node *node;
struct clk *clk;
int ret;
@@ -69,9 +70,10 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
* get node via "sound-dai = <&phandle port>"
* it will be used as xxx_of_node on soc_bind_dai_link()
*/
- *node = of_parse_phandle(np, "sound-dai", 0);
- if (!*node)
+ node = of_parse_phandle(np, "sound-dai", 0);
+ if (!node)
return -ENODEV;
+ *p_node = node;
/* get dai->name */
ret = snd_soc_of_get_dai_name(np, &dai->name);
@@ -104,7 +106,7 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
"system-clock-frequency",
&dai->sysclk);
} else {
- clk = of_clk_get(*node, 0);
+ clk = of_clk_get(node, 0);
if (!IS_ERR(clk))
dai->sysclk = clk_get_rate(clk);
}
@@ -112,17 +114,14 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
ret = 0;
parse_error:
- of_node_put(*node);
+ of_node_put(node);
return ret;
}
static int asoc_simple_card_parse_of(struct device_node *node,
struct asoc_simple_card_info *info,
- struct device *dev,
- struct device_node **of_cpu,
- struct device_node **of_codec,
- struct device_node **of_platform)
+ struct device *dev)
{
struct device_node *np;
char *name;
@@ -146,7 +145,7 @@ static int asoc_simple_card_parse_of(struct device_node *node,
if (np)
ret = asoc_simple_card_sub_parse_of(np,
&info->cpu_dai,
- of_cpu);
+ &info->snd_link.cpu_of_node);
if (ret < 0)
return ret;
@@ -156,7 +155,7 @@ static int asoc_simple_card_parse_of(struct device_node *node,
if (np)
ret = asoc_simple_card_sub_parse_of(np,
&info->codec_dai,
- of_codec);
+ &info->snd_link.codec_of_node);
if (ret < 0)
return ret;
@@ -173,7 +172,7 @@ static int asoc_simple_card_parse_of(struct device_node *node,
info->snd_link.name = info->snd_link.stream_name = name;
/* simple-card assumes platform == cpu */
- *of_platform = *of_cpu;
+ info->snd_link.platform_of_node = info->snd_link.cpu_of_node;
dev_dbg(dev, "card-name : %s\n", name);
dev_dbg(dev, "platform : %04x\n", info->daifmt);
@@ -193,34 +192,29 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
{
struct asoc_simple_card_info *cinfo;
struct device_node *np = pdev->dev.of_node;
- struct device_node *of_cpu, *of_codec, *of_platform;
struct device *dev = &pdev->dev;
int ret;
- cinfo = NULL;
- of_cpu = NULL;
- of_codec = NULL;
- of_platform = NULL;
-
cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
if (!cinfo)
return -ENOMEM;
+ /*
+ * init snd_soc_card
+ */
+ cinfo->snd_card.owner = THIS_MODULE;
+ cinfo->snd_card.dev = dev;
+ cinfo->snd_card.dai_link = &cinfo->snd_link;
+ cinfo->snd_card.num_links = 1;
+
if (np && of_device_is_available(np)) {
- cinfo->snd_card.dev = dev;
- ret = asoc_simple_card_parse_of(np, cinfo, dev,
- &of_cpu,
- &of_codec,
- &of_platform);
+ ret = asoc_simple_card_parse_of(np, cinfo, dev);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
return ret;
}
- cinfo->snd_link.cpu_of_node = of_cpu;
- cinfo->snd_link.codec_of_node = of_codec;
- cinfo->snd_link.platform_of_node = of_platform;
} else {
if (!dev->platform_data) {
dev_err(dev, "no info for asoc-simple-card\n");
@@ -228,8 +222,6 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
}
memcpy(cinfo, dev->platform_data, sizeof(*cinfo));
- cinfo->snd_card.dev = dev;
-
if (!cinfo->name ||
!cinfo->card ||
!cinfo->codec_dai.name ||
@@ -254,13 +246,6 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
cinfo->snd_link.codec_dai_name = cinfo->codec_dai.name;
cinfo->snd_link.init = asoc_simple_card_dai_init;
- /*
- * init snd_soc_card
- */
- cinfo->snd_card.owner = THIS_MODULE;
- cinfo->snd_card.dai_link = &cinfo->snd_link;
- cinfo->snd_card.num_links = 1;
-
snd_soc_card_set_drvdata(&cinfo->snd_card, cinfo);
return devm_snd_soc_register_card(&pdev->dev, &cinfo->snd_card);
--
Ken ar c'hentañ | ** Breizh ha Linux atav! **
Jef | http://moinejf.free.fr/
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