ASoC: da7218: Remove 32KHz PLL mode from driver

Functionality has been removed in latest silicon variants. This
patch removes the feature from the driver to align.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

2 files changed, 3 insertions, 11 deletions

diff --git a/sound/soc/codecs/da7218.c b/sound/soc/codecs/da7218.c
index 99ce23e113bf..f4435193b6d3 100644
--- a/sound/soc/codecs/da7218.c
+++ b/sound/soc/codecs/da7218.c
@@ -1819,7 +1819,7 @@ static int da7218_set_dai_sysclk(struct snd_soc_dai *codec_dai,
         if (da7218->mclk_rate == freq)
                 return 0;
 
-        if (((freq < 2000000) && (freq != 32768)) || (freq > 54000000)) {
+        if ((freq < 2000000) || (freq > 54000000)) {
                 dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
                         freq);
                 return -EINVAL;
@@ -1866,11 +1866,8 @@ static int da7218_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
         u32 freq_ref;
         u64 frac_div;
 
-        /* Verify 32KHz, 2MHz - 54MHz MCLK provided, and set input divider */
-        if (da7218->mclk_rate == 32768) {
-                indiv_bits = DA7218_PLL_INDIV_9_TO_18_MHZ;
-                indiv = DA7218_PLL_INDIV_9_TO_18_MHZ_VAL;
-        } else if (da7218->mclk_rate < 2000000) {
+        /* Verify 2MHz - 54MHz MCLK provided, and set input divider */
+        if (da7218->mclk_rate < 2000000) {
                 dev_err(codec->dev, "PLL input clock %d below valid range\n",
                         da7218->mclk_rate);
                 return -EINVAL;
@@ -1911,9 +1908,6 @@ static int da7218_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
         case DA7218_SYSCLK_PLL_SRM:
                 pll_ctrl |= DA7218_PLL_MODE_SRM;
                 break;
-        case DA7218_SYSCLK_PLL_32KHZ:
-                pll_ctrl |= DA7218_PLL_MODE_32KHZ;
-                break;
         default:
                 dev_err(codec->dev, "Invalid PLL config\n");
                 return -EINVAL;
diff --git a/sound/soc/codecs/da7218.h b/sound/soc/codecs/da7218.h
index 477cd37723cf..4f7ec21069a4 100644
--- a/sound/soc/codecs/da7218.h
+++ b/sound/soc/codecs/da7218.h
@@ -888,7 +888,6 @@
 #define DA7218_PLL_MODE_BYPASS          (0x0 << 6)
 #define DA7218_PLL_MODE_NORMAL          (0x1 << 6)
 #define DA7218_PLL_MODE_SRM             (0x2 << 6)
-#define DA7218_PLL_MODE_32KHZ           (0x3 << 6)
 
 /* DA7218_PLL_FRAC_TOP = 0x92 */
 #define DA7218_PLL_FBDIV_FRAC_TOP_SHIFT 0
@@ -1371,7 +1370,6 @@ enum da7218_sys_clk {
         DA7218_SYSCLK_MCLK = 0,
         DA7218_SYSCLK_PLL,
         DA7218_SYSCLK_PLL_SRM,
-        DA7218_SYSCLK_PLL_32KHZ
 };
 
 enum da7218_dev_id {