Merge tag 'asoc-v4.3-rc2' into asoc-next

[karo-tx-linux.git] / sound / soc / soc-core.c

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6173d15236c3c0c2ce53c3c31b721310f9576e9e..3b471f9c98c67d978697ca0a9fce033d802e7632 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3291,13 +3291,38 @@ int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
 }
 EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_simple_widgets);
 
+static int snd_soc_of_get_slot_mask(struct device_node *np,
+                                   const char *prop_name,
+                                   unsigned int *mask)
+{
+       u32 val;
+       const __be32 *of_slot_mask = of_get_property(np, prop_name, &val);
+       int i;
+
+       if (!of_slot_mask)
+               return 0;
+       val /= sizeof(u32);
+       for (i = 0; i < val; i++)
+               if (be32_to_cpup(&of_slot_mask[i]))
+                       *mask |= (1 << i);
+
+       return val;
+}
+
 int snd_soc_of_parse_tdm_slot(struct device_node *np,
+                             unsigned int *tx_mask,
+                             unsigned int *rx_mask,
                              unsigned int *slots,
                              unsigned int *slot_width)
 {
        u32 val;
        int ret;
 
+       if (tx_mask)
+               snd_soc_of_get_slot_mask(np, "dai-tdm-slot-tx-mask", tx_mask);
+       if (rx_mask)
+               snd_soc_of_get_slot_mask(np, "dai-tdm-slot-rx-mask", rx_mask);
+
        if (of_property_read_bool(np, "dai-tdm-slot-num")) {
                ret = of_property_read_u32(np, "dai-tdm-slot-num", &val);
                if (ret)