diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index b4d1a4e794d8..e7f608996c41 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -26,6 +26,8 @@ #include <linux/pm.h> #include <linux/i2c.h> #include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_gpio.h> #include <linux/i2c/twl.h> #include <linux/slab.h> #include <linux/gpio.h> @@ -295,13 +297,57 @@ static inline void twl4030_reset_registers(struct snd_soc_codec *codec) } -static void twl4030_init_chip(struct snd_soc_codec *codec) +static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata, + struct device_node *node) +{ + int value; + + of_property_read_u32(node, "ti,digimic_delay", + &pdata->digimic_delay); + of_property_read_u32(node, "ti,ramp_delay_value", + &pdata->ramp_delay_value); + of_property_read_u32(node, "ti,offset_cncl_path", + &pdata->offset_cncl_path); + if (!of_property_read_u32(node, "ti,hs_extmute", &value)) + pdata->hs_extmute = value; + + pdata->hs_extmute_gpio = of_get_named_gpio(node, + "ti,hs_extmute_gpio", 0); + if (gpio_is_valid(pdata->hs_extmute_gpio)) + pdata->hs_extmute = 1; +} + +static struct twl4030_codec_data *twl4030_get_pdata(struct snd_soc_codec *codec) { struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); + struct device_node *twl4030_codec_node = NULL; + + twl4030_codec_node = of_find_node_by_name(codec->dev->parent->of_node, + "codec"); + + if (!pdata && twl4030_codec_node) { + pdata = devm_kzalloc(codec->dev, + sizeof(struct twl4030_codec_data), + GFP_KERNEL); + if (!pdata) { + dev_err(codec->dev, "Can not allocate memory\n"); + return NULL; + } + twl4030_setup_pdata_of(pdata, twl4030_codec_node); + } + + return pdata; +} + +static void twl4030_init_chip(struct snd_soc_codec *codec) +{ + struct twl4030_codec_data *pdata; struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); u8 reg, byte; int i = 0; + pdata = twl4030_get_pdata(codec); + if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio)) { int ret; @@ -2290,13 +2336,6 @@ static struct snd_soc_codec_driver soc_codec_dev_twl4030 = { static int __devinit twl4030_codec_probe(struct platform_device *pdev) { - struct twl4030_codec_data *pdata = pdev->dev.platform_data; - - if (!pdata) { - dev_err(&pdev->dev, "platform_data is missing\n"); - return -EINVAL; - } - return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030, twl4030_dai, ARRAY_SIZE(twl4030_dai)); } |
