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Diffstat (limited to 'sound/soc/codecs/wm1250-ev1.c')
-rw-r--r--sound/soc/codecs/wm1250-ev1.c65
1 files changed, 46 insertions, 19 deletions
diff --git a/sound/soc/codecs/wm1250-ev1.c b/sound/soc/codecs/wm1250-ev1.c
index aefb4f89be0e..e0b51e9f8b12 100644
--- a/sound/soc/codecs/wm1250-ev1.c
+++ b/sound/soc/codecs/wm1250-ev1.c
@@ -79,22 +79,65 @@ static const struct snd_soc_dapm_route wm1250_ev1_dapm_routes[] = {
{ "WM1250 Output", NULL, "DAC" },
};
+static int wm1250_ev1_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct wm1250_priv *wm1250 = snd_soc_codec_get_drvdata(dai->codec);
+
+ switch (params_rate(params)) {
+ case 8000:
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
+ 1);
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
+ 1);
+ break;
+ case 16000:
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
+ 0);
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
+ 1);
+ break;
+ case 32000:
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
+ 1);
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
+ 0);
+ break;
+ case 64000:
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL0].gpio,
+ 0);
+ gpio_set_value(wm1250->gpios[WM1250_EV1_GPIO_CLK_SEL1].gpio,
+ 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops wm1250_ev1_ops = {
+ .hw_params = wm1250_ev1_hw_params,
+};
+
static struct snd_soc_dai_driver wm1250_ev1_dai = {
.name = "wm1250-ev1",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
- .channels_max = 1,
+ .channels_max = 2,
.rates = SNDRV_PCM_RATE_8000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
- .channels_max = 1,
+ .channels_max = 2,
.rates = SNDRV_PCM_RATE_8000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
+ .ops = &wm1250_ev1_ops,
};
static struct snd_soc_codec_driver soc_codec_dev_wm1250_ev1 = {
@@ -215,23 +258,7 @@ static struct i2c_driver wm1250_ev1_i2c_driver = {
.id_table = wm1250_ev1_i2c_id,
};
-static int __init wm1250_ev1_modinit(void)
-{
- int ret = 0;
-
- ret = i2c_add_driver(&wm1250_ev1_i2c_driver);
- if (ret != 0)
- pr_err("Failed to register WM1250-EV1 I2C driver: %d\n", ret);
-
- return ret;
-}
-module_init(wm1250_ev1_modinit);
-
-static void __exit wm1250_ev1_exit(void)
-{
- i2c_del_driver(&wm1250_ev1_i2c_driver);
-}
-module_exit(wm1250_ev1_exit);
+module_i2c_driver(wm1250_ev1_i2c_driver);
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("WM1250-EV1 audio I/O module driver");