ASoC: davinci-evm: Move sysclk logic away from evm_hw_params

The sysclk rate does not change runtime so it should be initialized at
init time.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 44 insertions, 20 deletions

diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index fd7c45b9ed5a..2f8161c1d5f0 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;