Correct misspelled signal to signal

Author: pschatzmann

src/Driver.h

@@ -1348,7 +1348,7 @@ class AudioDriverPCM3168Class : public AudioDriver {
         break;
       case BIT_LENGTH_32BITS:
       case BIT_LENGTH_24BITS:
-        if (iface.singal_type == SIGNAL_TDM) {
+        if (iface.signal_type == SIGNAL_TDM) {
           switch (iface.fmt) {
             case I2S_NORMAL:
               fmt = PCM3168::FMT::I2STDM24bit;

src/Driver/cs42448/cs42448.h

@@ -556,7 +556,7 @@ class CS42448 {
 
   /// Set I2S format based on codec_config
   bool setFormat() {
-    if (codec_config.i2s.singal_type == SIGNAL_TDM) {
+    if (codec_config.i2s.signal_type == SIGNAL_TDM) {
       return setFormat(Format::TDM);
     } else {
       switch (codec_config.i2s.fmt) {

src/Driver/es7210/es7210.c

@@ -326,7 +326,7 @@ error_t es7210_adc_init(codec_config_t *codec_cfg, void* i2c)
 
     // set REG12
     uint8_t reg12 = 0;
-    if (i2s_cfg->singal_type == SIGNAL_TDM) {
+    if (i2s_cfg->signal_type == SIGNAL_TDM) {
         reg12 = 0x02; // TDM I2S
     }
     ret |= es7210_write_reg(ES7210_SDP_INTERFACE2_REG12, reg12);

src/DriverCommon.h

@@ -119,7 +119,7 @@ typedef enum {
 } i2s_format_t;
 
 /**
- * @enum singal_t
+ * @enum signal_t
  * @brief Usually the value is digital for i2s
  * @ingroup enumerations
  */
@@ -129,7 +129,7 @@ typedef enum {
   SIGNAL_AMALOG,
   SIGNAL_PDM,
   SIGNAL_TDM,
-} singal_t;
+} signal_t;
 
 
 /**
@@ -196,7 +196,7 @@ typedef struct {
   /*!< i2s number of channels */
   channels_t channels;
   /*!< signal tpye */
-  singal_t singal_type;
+  signal_t signal_type;
 
 } I2SDefinition;