diff options
| author | Brian Austin <brian.austin@cirrus.com> | 2013-11-15 09:35:33 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-11-28 10:57:01 +0000 |
| commit | 391fc59db87615e07e8a6ab5fbffe3cc04f2b19c (patch) | |
| tree | 2f8fa05c3126cf5ea30d56b7549a4c2af15fd058 /sound/soc/codecs/cs42l52.c | |
| parent | 44b2ed54036ecec36ad27adf356f0274a72e5f05 (diff) | |
| download | linux-391fc59db87615e07e8a6ab5fbffe3cc04f2b19c.tar.bz2 | |
ASoC: cs42l52: Add devicetree support for CS42L52
This patch adds device tree support for the CS42L52 Codec
Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/cs42l52.c')
| -rw-r--r-- | sound/soc/codecs/cs42l52.c | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c index 78d2dd669e89..4a47a634f376 100644 --- a/sound/soc/codecs/cs42l52.c +++ b/sound/soc/codecs/cs42l52.c @@ -17,7 +17,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/delay.h> -#include <linux/gpio.h> +#include <linux/of_gpio.h> #include <linux/pm.h> #include <linux/i2c.h> #include <linux/input.h> @@ -1193,6 +1193,7 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client, int ret; unsigned int devid = 0; unsigned int reg; + u32 val32; cs42l52 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l52_private), GFP_KERNEL); @@ -1206,9 +1207,39 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client, dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); return ret; } - - if (pdata) + if (pdata) { + cs42l52->pdata = *pdata; + } else { + pdata = devm_kzalloc(&i2c_client->dev, + sizeof(struct cs42l52_platform_data), + GFP_KERNEL); + if (!pdata) { + dev_err(&i2c_client->dev, "could not allocate pdata\n"); + return -ENOMEM; + } + if (i2c_client->dev.of_node) { + if (of_property_read_bool(i2c_client->dev.of_node, + "cirrus,mica-differential-cfg")) + pdata->mica_diff_cfg = true; + + if (of_property_read_bool(i2c_client->dev.of_node, + "cirrus,micb-differential-cfg")) + pdata->micb_diff_cfg = true; + + if (of_property_read_u32(i2c_client->dev.of_node, + "cirrus,micbias-lvl", &val32) >= 0) + pdata->micbias_lvl = val32; + + if (of_property_read_u32(i2c_client->dev.of_node, + "cirrus,chgfreq-divisor", &val32) >= 0) + pdata->chgfreq_divisor = val32; + + pdata->reset_gpio = + of_get_named_gpio(i2c_client->dev.of_node, + "cirrus,reset-gpio", 0); + } cs42l52->pdata = *pdata; + } if (cs42l52->pdata.reset_gpio) { ret = gpio_request_one(cs42l52->pdata.reset_gpio, @@ -1280,6 +1311,13 @@ static int cs42l52_i2c_remove(struct i2c_client *client) return 0; } +static const struct of_device_id cs42l52_of_match[] = { + { .compatible = "cirrus,cs42l52", }, + {}, +}; +MODULE_DEVICE_TABLE(of, cs42l52_of_match); + + static const struct i2c_device_id cs42l52_id[] = { { "cs42l52", 0 }, { } @@ -1290,6 +1328,7 @@ static struct i2c_driver cs42l52_i2c_driver = { .driver = { .name = "cs42l52", .owner = THIS_MODULE, + .of_match_table = cs42l52_of_match, }, .id_table = cs42l52_id, .probe = cs42l52_i2c_probe, |