ASoC: Add BCLK calculation utility for TDM mode too

Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/soc.h

@@ -230,6 +230,7 @@ int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
 /* Utility functions to get clock rates from various things */
 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
+int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 
 /* set runtime hw params */

sound/soc/soc-utils.c

@@ -54,6 +54,12 @@ int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params)
 }
 EXPORT_SYMBOL_GPL(snd_soc_params_to_frame_size);
 
+int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots)
+{
+	return fs * snd_soc_calc_frame_size(sample_size, channels, tdm_slots);
+}
+EXPORT_SYMBOL_GPL(snd_soc_calc_bclk);
+
 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *params)
 {
 	int ret;