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path: root/sound/soc/samsung/smdk_wm8994.c
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Diffstat (limited to 'sound/soc/samsung/smdk_wm8994.c')
-rw-r--r--sound/soc/samsung/smdk_wm8994.c117
1 files changed, 73 insertions, 44 deletions
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index e7c1009a1e1..3d6272a8cad 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -8,6 +8,11 @@
*/
#include "../codecs/wm8994.h"
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
/*
* Default CFG switch settings to use this driver:
@@ -34,33 +39,31 @@
/* SMDK has a 16.934MHZ crystal attached to WM8994 */
#define SMDK_WM8994_FREQ 16934000
+struct smdk_wm8994_data {
+ int mclk1_rate;
+};
+
+/* Default SMDKs */
+static struct smdk_wm8994_data smdk_board_data = {
+ .mclk1_rate = SMDK_WM8994_FREQ,
+};
+
static int smdk_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
unsigned int pll_out;
int ret;
/* AIF1CLK should be >=3MHz for optimal performance */
- if (params_rate(params) == 8000 || params_rate(params) == 11025)
+ if (params_width(params) == 24)
+ pll_out = params_rate(params) * 384;
+ else if (params_rate(params) == 8000 || params_rate(params) == 11025)
pll_out = params_rate(params) * 512;
else
pll_out = params_rate(params) * 256;
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
- | SND_SOC_DAIFMT_NB_NF
- | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
- | SND_SOC_DAIFMT_NB_NF
- | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
SMDK_WM8994_FREQ, pll_out);
if (ret < 0)
@@ -86,18 +89,6 @@ static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
- /* HeadPhone */
- snd_soc_dapm_enable_pin(dapm, "HPOUT1R");
- snd_soc_dapm_enable_pin(dapm, "HPOUT1L");
-
- /* MicIn */
- snd_soc_dapm_enable_pin(dapm, "IN1LN");
- snd_soc_dapm_enable_pin(dapm, "IN1RN");
-
- /* LineIn */
- snd_soc_dapm_enable_pin(dapm, "IN2LN");
- snd_soc_dapm_enable_pin(dapm, "IN2RN");
-
/* Other pins NC */
snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
@@ -114,8 +105,6 @@ static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
snd_soc_dapm_nc_pin(dapm, "IN1RP");
snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
- snd_soc_dapm_sync(dapm);
-
return 0;
}
@@ -125,52 +114,92 @@ static struct snd_soc_dai_link smdk_dai[] = {
.stream_name = "Pri_Dai",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "wm8994-aif1",
- .platform_name = "samsung-audio",
+ .platform_name = "samsung-i2s.0",
.codec_name = "wm8994-codec",
.init = smdk_wm8994_init_paiftx,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
.ops = &smdk_ops,
}, { /* Sec_Fifo Playback i/f */
.name = "Sec_FIFO TX",
.stream_name = "Sec_Dai",
- .cpu_dai_name = "samsung-i2s.4",
+ .cpu_dai_name = "samsung-i2s-sec",
.codec_dai_name = "wm8994-aif1",
- .platform_name = "samsung-audio",
+ .platform_name = "samsung-i2s-sec",
.codec_name = "wm8994-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
.ops = &smdk_ops,
},
};
static struct snd_soc_card smdk = {
.name = "SMDK-I2S",
+ .owner = THIS_MODULE,
.dai_link = smdk_dai,
.num_links = ARRAY_SIZE(smdk_dai),
};
-static struct platform_device *smdk_snd_device;
+static const struct of_device_id samsung_wm8994_of_match[] = {
+ { .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
+ {},
+};
+MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
-static int __init smdk_audio_init(void)
+static int smdk_audio_probe(struct platform_device *pdev)
{
int ret;
+ struct device_node *np = pdev->dev.of_node;
+ struct snd_soc_card *card = &smdk;
+ struct smdk_wm8994_data *board;
+ const struct of_device_id *id;
+
+ card->dev = &pdev->dev;
- smdk_snd_device = platform_device_alloc("soc-audio", -1);
- if (!smdk_snd_device)
+ board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
+ if (!board)
return -ENOMEM;
- platform_set_drvdata(smdk_snd_device, &smdk);
+ if (np) {
+ smdk_dai[0].cpu_dai_name = NULL;
+ smdk_dai[0].cpu_of_node = of_parse_phandle(np,
+ "samsung,i2s-controller", 0);
+ if (!smdk_dai[0].cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'samsung,i2s-controller' missing or invalid\n");
+ ret = -EINVAL;
+ }
+
+ smdk_dai[0].platform_name = NULL;
+ smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
+ }
+
+ id = of_match_device(of_match_ptr(samsung_wm8994_of_match), &pdev->dev);
+ if (id)
+ *board = *((struct smdk_wm8994_data *)id->data);
+
+ platform_set_drvdata(pdev, board);
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
- ret = platform_device_add(smdk_snd_device);
if (ret)
- platform_device_put(smdk_snd_device);
+ dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
return ret;
}
-module_init(smdk_audio_init);
-static void __exit smdk_audio_exit(void)
-{
- platform_device_unregister(smdk_snd_device);
-}
-module_exit(smdk_audio_exit);
+static struct platform_driver smdk_audio_driver = {
+ .driver = {
+ .name = "smdk-audio-wm8994",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(samsung_wm8994_of_match),
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = smdk_audio_probe,
+};
+
+module_platform_driver(smdk_audio_driver);
MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:smdk-audio-wm8994");