From: Jyri Sarha <jsarha@xxxxxx>
The sysclk rate does not change runtime so it should be initialized at
init time.
Signed-off-by: Jyri Sarha <jsarha@xxxxxx>
---
sound/soc/davinci/davinci-evm.c | 64 +++++++++++++++++++++++++++------------
1 file changed, 44 insertions(+), 20 deletions(-)
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index fd7c45b..2f8161c 100644
--- a/sound/soc/davinci/davinci-evm.c
+++ b/sound/soc/davinci/davinci-evm.c
@@ -27,6 +27,10 @@
#include "davinci-i2s.h"
#include "davinci-mcasp.h"
+struct snd_soc_card_drvdata_davinci {
+ unsigned sysclk;
+};
+
#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
static int evm_hw_params(struct snd_pcm_substream *substream,
@@ -35,27 +39,11 @@ static int evm_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_card *soc_card = codec->card;
int ret = 0;
- unsigned sysclk;
-
- /* ASP1 on DM355 EVM is clocked by an external oscillator */
- if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
- machine_is_davinci_dm365_evm())
- sysclk = 27000000;
-
- /* ASP0 in DM6446 EVM is clocked by U55, as configured by
- * board-dm644x-evm.c using GPIOs from U18. There are six
- * options; here we "know" we use a 48 KHz sample rate.
- */
- else if (machine_is_davinci_evm())
- sysclk = 12288000;
-
- else if (machine_is_davinci_da830_evm() ||
- machine_is_davinci_da850_evm())
- sysclk = 24576000;
-
- else
- return -EINVAL;
+ unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
+ snd_soc_card_get_drvdata(soc_card))->sysclk;
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
@@ -243,35 +231,65 @@ static struct snd_soc_dai_link da850_evm_dai = {
};
/* davinci dm6446 evm audio machine driver */
+/*
+ * ASP0 in DM6446 EVM is clocked by U55, as configured by
+ * board-dm644x-evm.c using GPIOs from U18. There are six
+ * options; here we "know" we use a 48 KHz sample rate.
+ */
+static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
+ .sysclk = 12288000,
+};
+
static struct snd_soc_card dm6446_snd_soc_card_evm = {
.name = "DaVinci DM6446 EVM",
.owner = THIS_MODULE,
.dai_link = &dm6446_evm_dai,
.num_links = 1,
+ .drvdata = &dm6446_snd_soc_card_drvdata,
};
/* davinci dm355 evm audio machine driver */
+/* ASP1 on DM355 EVM is clocked by an external oscillator */
+static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
+ .sysclk = 27000000,
+};
+
static struct snd_soc_card dm355_snd_soc_card_evm = {
.name = "DaVinci DM355 EVM",
.owner = THIS_MODULE,
.dai_link = &dm355_evm_dai,
.num_links = 1,
+ .drvdata = &dm355_snd_soc_card_drvdata,
};
/* davinci dm365 evm audio machine driver */
+static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
+ .sysclk = 27000000,
+};
+
static struct snd_soc_card dm365_snd_soc_card_evm = {
.name = "DaVinci DM365 EVM",
.owner = THIS_MODULE,
.dai_link = &dm365_evm_dai,
.num_links = 1,
+ .drvdata = &dm365_snd_soc_card_drvdata,
};
/* davinci dm6467 evm audio machine driver */
+static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
+ .sysclk = 27000000,
+};
+
static struct snd_soc_card dm6467_snd_soc_card_evm = {
.name = "DaVinci DM6467 EVM",
.owner = THIS_MODULE,
.dai_link = dm6467_evm_dai,
.num_links = ARRAY_SIZE(dm6467_evm_dai),
+ .drvdata = &dm6467_snd_soc_card_drvdata,
+};
+
+static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
+ .sysclk = 24576000,
};
static struct snd_soc_card da830_snd_soc_card = {
@@ -279,6 +297,11 @@ static struct snd_soc_card da830_snd_soc_card = {
.owner = THIS_MODULE,
.dai_link = &da830_evm_dai,
.num_links = 1,
+ .drvdata = &da830_snd_soc_card_drvdata,
+};
+
+static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
+ .sysclk = 24576000,
};
static struct snd_soc_card da850_snd_soc_card = {
@@ -286,6 +309,7 @@ static struct snd_soc_card da850_snd_soc_card = {
.owner = THIS_MODULE,
.dai_link = &da850_evm_dai,
.num_links = 1,
+ .drvdata = &da850_snd_soc_card_drvdata,
};
static struct platform_device *evm_snd_device;
--
1.7.9.5
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