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authorDaniel Mack <zonque@gmail.com>2013-08-12 10:42:38 +0200
committerMark Brown <broonie@linaro.org>2013-08-15 11:29:07 +0100
commit2023c90c3a2c4c1aeb7f47649367d551c676da07 (patch)
treeb41ee4768697271583fef04d09be4f487322e9b2 /sound/soc/pxa
parent4210606b19852dce52ed1a687db816695b6048e1 (diff)
ASoC: pxa: pxa-ssp: add DT bindings
The pxa ssp DAI acts as a user of a pxa ssp port, and needs an appropriate 'port' phandle in DT to reference the upstream. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/pxa')
-rw-r--r--sound/soc/pxa/pxa-ssp.c37
1 files changed, 31 insertions, 6 deletions
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 6f4dd7543e82..19296f22cb28 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -21,6 +21,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/pxa2xx_ssp.h>
+#include <linux/of.h>
#include <asm/irq.h>
@@ -719,6 +720,7 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
static int pxa_ssp_probe(struct snd_soc_dai *dai)
{
+ struct device *dev = dai->dev;
struct ssp_priv *priv;
int ret;
@@ -726,10 +728,26 @@ static int pxa_ssp_probe(struct snd_soc_dai *dai)
if (!priv)
return -ENOMEM;
- priv->ssp = pxa_ssp_request(dai->id + 1, "SoC audio");
- if (priv->ssp == NULL) {
- ret = -ENODEV;
- goto err_priv;
+ if (dev->of_node) {
+ struct device_node *ssp_handle;
+
+ ssp_handle = of_parse_phandle(dev->of_node, "port", 0);
+ if (!ssp_handle) {
+ dev_err(dev, "unable to get 'port' phandle\n");
+ return -ENODEV;
+ }
+
+ priv->ssp = pxa_ssp_request_of(ssp_handle, "SoC audio");
+ if (priv->ssp == NULL) {
+ ret = -ENODEV;
+ goto err_priv;
+ }
+ } else {
+ priv->ssp = pxa_ssp_request(dai->id + 1, "SoC audio");
+ if (priv->ssp == NULL) {
+ ret = -ENODEV;
+ goto err_priv;
+ }
}
priv->dai_fmt = (unsigned int) -1;
@@ -798,6 +816,12 @@ static const struct snd_soc_component_driver pxa_ssp_component = {
.name = "pxa-ssp",
};
+#ifdef CONFIG_OF
+static const struct of_device_id pxa_ssp_of_ids[] = {
+ { .compatible = "mrvl,pxa-ssp-dai" },
+};
+#endif
+
static int asoc_ssp_probe(struct platform_device *pdev)
{
return snd_soc_register_component(&pdev->dev, &pxa_ssp_component,
@@ -812,8 +836,9 @@ static int asoc_ssp_remove(struct platform_device *pdev)
static struct platform_driver asoc_ssp_driver = {
.driver = {
- .name = "pxa-ssp-dai",
- .owner = THIS_MODULE,
+ .name = "pxa-ssp-dai",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(pxa_ssp_of_ids),
},
.probe = asoc_ssp_probe,