WM8524 is a stereo DAC. Add support for this codec in imx-card ASoC
machine driver.
Signed-off-by: Chancel Liu <chancel....@nxp.com>
---
changes in v2
- fix build warnings reported by kernel test robot
- add imx_aif_shutdown callback in which setting sysclk to 0
sound/soc/fsl/imx-card.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index ea5dbb54b584..28699d7b75ca 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -26,6 +26,7 @@ enum codec_type {
CODEC_AK4497,
CODEC_AK5552,
CODEC_CS42888,
+ CODEC_WM8524,
};
/*
@@ -196,6 +197,13 @@ static struct imx_akcodec_tdm_fs_mul cs42888_tdm_fs_mul[]
= {
{ .min = 256, .max = 256, .mul = 256 },
};
+static struct imx_akcodec_fs_mul wm8524_fs_mul[] = {
+ { .rmin = 8000, .rmax = 32000, .wmin = 256, .wmax = 1152, },
+ { .rmin = 44100, .rmax = 48000, .wmin = 256, .wmax = 768, },
+ { .rmin = 88200, .rmax = 96000, .wmin = 128, .wmax = 384, },
+ { .rmin = 176400, .rmax = 192000, .wmin = 128, .wmax = 192, },
+};
+
static const u32 akcodec_rates[] = {
8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
96000, 176400, 192000, 352800, 384000, 705600, 768000,
@@ -229,6 +237,10 @@ static const u32 cs42888_tdm_channels[] = {
1, 2, 3, 4, 5, 6, 7, 8,
};
+static const u32 wm8524_channels[] = {
+ 2,
+};
+
static bool format_is_dsd(struct snd_pcm_hw_params *params)
{
snd_pcm_format_t format = params_format(params);
@@ -261,6 +273,7 @@ static bool codec_is_akcodec(unsigned int type)
case CODEC_AK5558:
case CODEC_AK5552:
case CODEC_CS42888:
+ case CODEC_WM8524:
return true;
default:
break;
@@ -477,9 +490,24 @@ static int imx_aif_startup(struct snd_pcm_substream
*substream)
return ret;
}
+static void imx_aif_shutdown(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai;
+ struct snd_soc_dai *codec_dai;
+ int i;
+
+ for_each_rtd_cpu_dais(rtd, i, cpu_dai)
+ snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT);
+
+ for_each_rtd_codec_dais(rtd, i, codec_dai)
+ snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN);
+}
+
static const struct snd_soc_ops imx_aif_ops = {
.hw_params = imx_aif_hw_params,
.startup = imx_aif_startup,
+ .shutdown = imx_aif_shutdown,
};
static const struct snd_soc_ops imx_aif_ops_be = {
@@ -632,6 +660,8 @@ static int imx_card_parse_of(struct imx_card_data *data)
plat_data->type = CODEC_AK5552;
else if (!strcmp(link->codecs->dai_name, "cs42888"))
plat_data->type = CODEC_CS42888;
+ else if (!strcmp(link->codecs->dai_name, "wm8524-hifi"))
+ plat_data->type = CODEC_WM8524;
} else {
link->codecs = &snd_soc_dummy_dlc;
@@ -805,6 +835,10 @@ static int imx_card_probe(struct platform_device *pdev)
data->dapm_routes[1].sink = "CPU-Capture";
data->dapm_routes[1].source = "Capture";
break;
+ case CODEC_WM8524:
+ data->dapm_routes[0].sink = "Playback";
+ data->dapm_routes[0].source = "CPU-Playback";
+ break;
default:
break;
}
@@ -854,6 +888,12 @@ static int imx_card_probe(struct platform_device *pdev)
plat_data->support_tdm_channels = cs42888_tdm_channels;
plat_data->num_tdm_channels =
ARRAY_SIZE(cs42888_tdm_channels);
break;
+ case CODEC_WM8524:
+ plat_data->fs_mul = wm8524_fs_mul;
+ plat_data->num_fs_mul = ARRAY_SIZE(wm8524_fs_mul);
+ plat_data->support_channels = wm8524_channels;
+ plat_data->num_channels = ARRAY_SIZE(wm8524_channels);
+ break;
default:
break;
}
--
2.47.1
