1 files changed, 20 insertions, 137 deletions

diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 776ac80cc1a8..c574ae238973 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -46,8 +46,6 @@
                                                  * 6144 stereo */
 #define DAC33_BUFFER_SIZE_SAMPLES       6144
 
-#define NSAMPLE_MAX             5700
-
 #define MODE7_LTHR              10
 #define MODE7_UTHR              (DAC33_BUFFER_SIZE_SAMPLES - 10)
 
@@ -99,16 +97,10 @@ struct tlv320dac33_priv {
         unsigned int refclk;
 
         unsigned int alarm_threshold;   /* set to be half of LATENCY_TIME_MS */
-        unsigned int nsample_min;       /* nsample should not be lower than
-                                         * this */
-        unsigned int nsample_max;       /* nsample should not be higher than
-                                         * this */
         enum dac33_fifo_modes fifo_mode;/* FIFO mode selection */
         unsigned int nsample;           /* burst read amount from host */
         int mode1_latency;              /* latency caused by the i2c writes in
                                          * us */
-        int auto_fifo_config;           /* Configure the FIFO based on the
-                                         * period size */
         u8 burst_bclkdiv;               /* BCLK divider value in burst mode */
         unsigned int burst_rate;        /* Interface speed in Burst modes */
 
@@ -436,73 +428,6 @@ static int dac33_playback_event(struct snd_soc_dapm_widget *w,
         return 0;
 }
 
-static int dac33_get_nsample(struct snd_kcontrol *kcontrol,
-                         struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-        struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
-
-        ucontrol->value.integer.value[0] = dac33->nsample;
-
-        return 0;
-}
-
-static int dac33_set_nsample(struct snd_kcontrol *kcontrol,
-                         struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-        struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
-        int ret = 0;
-
-        if (dac33->nsample == ucontrol->value.integer.value[0])
-                return 0;
-
-        if (ucontrol->value.integer.value[0] < dac33->nsample_min ||
-            ucontrol->value.integer.value[0] > dac33->nsample_max) {
-                ret = -EINVAL;
-        } else {
-                dac33->nsample = ucontrol->value.integer.value[0];
-                /* Re calculate the burst time */
-                dac33->mode1_us_burst = SAMPLES_TO_US(dac33->burst_rate,
-                                                      dac33->nsample);
-        }
-
-        return ret;
-}
-
-static int dac33_get_uthr(struct snd_kcontrol *kcontrol,
-                         struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-        struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
-
-        ucontrol->value.integer.value[0] = dac33->uthr;
-
-        return 0;
-}
-
-static int dac33_set_uthr(struct snd_kcontrol *kcontrol,
-                         struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-        struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
-        int ret = 0;
-
-        if (dac33->substream)
-                return -EBUSY;
-
-        if (dac33->uthr == ucontrol->value.integer.value[0])
-                return 0;
-
-        if (ucontrol->value.integer.value[0] < (MODE7_LTHR + 10) ||
-            ucontrol->value.integer.value[0] > MODE7_UTHR)
-                ret = -EINVAL;
-        else
-                dac33->uthr = ucontrol->value.integer.value[0];
-
-        return ret;
-}
-
 static int dac33_get_fifo_mode(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_value *ucontrol)
 {
@@ -587,13 +512,6 @@ static const struct snd_kcontrol_new dac33_mode_snd_controls[] = {
                  dac33_get_fifo_mode, dac33_set_fifo_mode),
 };
 
-static const struct snd_kcontrol_new dac33_fifo_snd_controls[] = {
-        SOC_SINGLE_EXT("nSample", 0, 0, 5900, 0,
-                dac33_get_nsample, dac33_set_nsample),
-        SOC_SINGLE_EXT("UTHR", 0, 0, MODE7_UTHR, 0,
-                 dac33_get_uthr, dac33_set_uthr),
-};
-
 /* Analog bypass */
 static const struct snd_kcontrol_new dac33_dapm_abypassl_control =
         SOC_DAPM_SINGLE("Switch", DAC33_LINEL_TO_LLO_VOL, 7, 1, 1);
@@ -853,10 +771,6 @@ static void dac33_shutdown(struct snd_pcm_substream *substream,
         struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
 
         dac33->substream = NULL;
-
-        /* Reset the nSample restrictions */
-        dac33->nsample_min = 0;
-        dac33->nsample_max = NSAMPLE_MAX;
 }
 
 static int dac33_hw_params(struct snd_pcm_substream *substream,
@@ -1112,39 +1026,19 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream)
                 nsample_limit = DAC33_BUFFER_SIZE_SAMPLES -
                                 dac33->alarm_threshold;
 
-                if (dac33->auto_fifo_config) {
-                        if (period_size <= dac33->alarm_threshold)
-                                /*
-                                 * Configure nSamaple to number of periods,
-                                 * which covers the latency requironment.
-                                 */
-                                dac33->nsample = period_size *
-                                       ((dac33->alarm_threshold / period_size) +
-                                       (dac33->alarm_threshold % period_size ?
-                                       1 : 0));
-                        else if (period_size > nsample_limit)
-                                dac33->nsample = nsample_limit;
-                        else
-                                dac33->nsample = period_size;
-                } else {
-                        /* nSample time shall not be shorter than i2c latency */
-                        dac33->nsample_min = dac33->alarm_threshold;
+                if (period_size <= dac33->alarm_threshold)
                         /*
-                         * nSample should not be bigger than alsa buffer minus
-                         * size of one period to avoid overruns
+                         * Configure nSamaple to number of periods,
+                         * which covers the latency requironment.
                          */
-                        dac33->nsample_max = substream->runtime->buffer_size -
-                                                period_size;
-
-                        if (dac33->nsample_max > nsample_limit)
-                                dac33->nsample_max = nsample_limit;
-
-                        /* Correct the nSample if it is outside of the ranges */
-                        if (dac33->nsample < dac33->nsample_min)
-                                dac33->nsample = dac33->nsample_min;
-                        if (dac33->nsample > dac33->nsample_max)
-                                dac33->nsample = dac33->nsample_max;
-                }
+                        dac33->nsample = period_size *
+                                ((dac33->alarm_threshold / period_size) +
+                                (dac33->alarm_threshold % period_size ?
+                                1 : 0));
+                else if (period_size > nsample_limit)
+                        dac33->nsample = nsample_limit;
+                else
+                        dac33->nsample = period_size;