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authorAlexander Shiyan <shc_work@mail.ru>2014-04-26 10:57:03 +0400
committerMark Brown <broonie@linaro.org>2014-04-29 15:24:54 -0700
commit780aaeff96819ca58e0cad830bfbe6eee9aef82c (patch)
tree28e36bd081b08efae0a1508fc66ac723588dad13
parentc9eaa447e77efe77b7fa4c953bd62de8297fd6c5 (diff)
downloadop-kernel-dev-780aaeff96819ca58e0cad830bfbe6eee9aef82c.zip
op-kernel-dev-780aaeff96819ca58e0cad830bfbe6eee9aef82c.tar.gz
ASoC: mc13783: Add devicetree support
This patch adds devicetree support for mc13783-codec. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
-rw-r--r--Documentation/devicetree/bindings/mfd/mc13xxx.txt3
-rw-r--r--drivers/mfd/mc13xxx-core.c10
-rw-r--r--sound/soc/codecs/mc13783.c14
3 files changed, 23 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
index 1413f39..8aba488 100644
--- a/Documentation/devicetree/bindings/mfd/mc13xxx.txt
+++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
@@ -10,6 +10,9 @@ Optional properties:
- fsl,mc13xxx-uses-touch : Indicate the touchscreen controller is being used
Sub-nodes:
+- codec: Contain the Audio Codec node.
+ - adc-port: Contain PMIC SSI port number used for ADC.
+ - dac-port: Contain PMIC SSI port number used for DAC.
- leds : Contain the led nodes and initial register values in property
"led-control". Number of register depends of used IC, for MC13783 is 6,
for MC13892 is 4, for MC34708 is 1. See datasheet for bits definitions of
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 06e64b6..0c6c21c5 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -673,9 +673,13 @@ int mc13xxx_common_init(struct device *dev)
if (mc13xxx->flags & MC13XXX_USE_ADC)
mc13xxx_add_subdevice(mc13xxx, "%s-adc");
- if (mc13xxx->flags & MC13XXX_USE_CODEC)
- mc13xxx_add_subdevice_pdata(mc13xxx, "%s-codec",
- pdata->codec, sizeof(*pdata->codec));
+ if (mc13xxx->flags & MC13XXX_USE_CODEC) {
+ if (pdata)
+ mc13xxx_add_subdevice_pdata(mc13xxx, "%s-codec",
+ pdata->codec, sizeof(*pdata->codec));
+ else
+ mc13xxx_add_subdevice(mc13xxx, "%s-codec");
+ }
if (mc13xxx->flags & MC13XXX_USE_RTC)
mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index 2c59b1f..a711805 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -22,6 +22,7 @@
*/
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/of.h>
#include <linux/mfd/mc13xxx.h>
#include <linux/slab.h>
#include <sound/core.h>
@@ -750,6 +751,7 @@ static int __init mc13783_codec_probe(struct platform_device *pdev)
{
struct mc13783_priv *priv;
struct mc13xxx_codec_platform_data *pdata = pdev->dev.platform_data;
+ struct device_node *np;
int ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
@@ -760,7 +762,17 @@ static int __init mc13783_codec_probe(struct platform_device *pdev)
priv->adc_ssi_port = pdata->adc_ssi_port;
priv->dac_ssi_port = pdata->dac_ssi_port;
} else {
- return -ENOSYS;
+ np = of_get_child_by_name(pdev->dev.parent->of_node, "codec");
+ if (!np)
+ return -ENOSYS;
+
+ ret = of_property_read_u32(np, "adc-port", &priv->adc_ssi_port);
+ if (ret)
+ return ret;
+
+ ret = of_property_read_u32(np, "dac-port", &priv->dac_ssi_port);
+ if (ret)
+ return ret;
}
dev_set_drvdata(&pdev->dev, priv);
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