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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>
This commit is contained in:
Alexander Shiyan 2014-04-26 10:57:03 +04:00 committed by Mark Brown
parent c9eaa447e7
commit 780aaeff96
3 changed files with 23 additions and 4 deletions
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3
Documentation/devicetree/bindings/mfd/mc13xxx.txt
View File

@ -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

10
drivers/mfd/mc13xxx-core.c
View File

@ -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");

14
sound/soc/codecs/mc13783.c
View File

@ -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);