ASoC: use set_channel_map api to reorder channels for AD1938 and AD1836

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 37 insertions, 8 deletions

diff --git a/sound/soc/blackfin/bf5xx-tdm.c b/sound/soc/blackfin/bf5xx-tdm.c
index 3096badf09a5..600987d8a871 100644
--- a/sound/soc/blackfin/bf5xx-tdm.c
+++ b/sound/soc/blackfin/bf5xx-tdm.c
@@ -46,14 +46,6 @@
 #include "bf5xx-sport.h"
 #include "bf5xx-tdm.h"
 
-struct bf5xx_tdm_port {
-        u16 tcr1;
-        u16 rcr1;
-        u16 tcr2;
-        u16 rcr2;
-        int configured;
-};
-
 static struct bf5xx_tdm_port bf5xx_tdm;
 static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
 
@@ -181,6 +173,40 @@ static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream,
                 bf5xx_tdm.configured = 0;
 }
 
+static int bf5xx_tdm_set_channel_map(struct snd_soc_dai *dai,
+                unsigned int tx_num, unsigned int *tx_slot,
+                unsigned int rx_num, unsigned int *rx_slot)
+{
+        int i;
+        unsigned int slot;
+        unsigned int tx_mapped = 0, rx_mapped = 0;
+
+        if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
+                        (rx_num > BFIN_TDM_DAI_MAX_SLOTS))
+                return -EINVAL;
+
+        for (i = 0; i < tx_num; i++) {
+                slot = tx_slot[i];
+                if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+                                (!(tx_mapped & (1 << slot)))) {
+                        bf5xx_tdm.tx_map[i] = slot;
+                        tx_mapped |= 1 << slot;
+                } else
+                        return -EINVAL;
+        }
+        for (i = 0; i < rx_num; i++) {
+                slot = rx_slot[i];
+                if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+                                (!(rx_mapped & (1 << slot)))) {
+                        bf5xx_tdm.rx_map[i] = slot;
+                        rx_mapped |= 1 << slot;
+                } else
+                        return -EINVAL;
+        }
+
+        return 0;
+}
+
 #ifdef CONFIG_PM
 static int bf5xx_tdm_suspend(struct snd_soc_dai *dai)
 {
@@ -235,6 +261,7 @@ static struct snd_soc_dai_ops bf5xx_tdm_dai_ops = {
         .hw_params      = bf5xx_tdm_hw_params,
         .set_fmt        = bf5xx_tdm_set_dai_fmt,
         .shutdown       = bf5xx_tdm_shutdown,
+        .set_channel_map   = bf5xx_tdm_set_channel_map,
 };
 
 struct snd_soc_dai bf5xx_tdm_dai = {
@@ -300,6 +327,8 @@ static int __devinit bfin_tdm_probe(struct platform_device *pdev)
                 pr_err("Failed to register DAI: %d\n", ret);
                 goto sport_config_err;
         }
+
+        sport_handle->private_data = &bf5xx_tdm;
         return 0;
 
 sport_config_err: