diff options
Diffstat (limited to 'sound/soc/blackfin')
| -rw-r--r-- | sound/soc/blackfin/bf5xx-ac97.c | 9 | ||||
| -rw-r--r-- | sound/soc/blackfin/bf5xx-sport.c | 4 |
2 files changed, 11 insertions, 2 deletions
diff --git a/sound/soc/blackfin/bf5xx-ac97.c b/sound/soc/blackfin/bf5xx-ac97.c index 8a935f2d176..b1ed423fabd 100644 --- a/sound/soc/blackfin/bf5xx-ac97.c +++ b/sound/soc/blackfin/bf5xx-ac97.c @@ -31,6 +31,15 @@ #include "bf5xx-sport.h" #include "bf5xx-ac97.h" +/* Anomaly notes: + * 05000250 - AD1980 is running in TDM mode and RFS/TFS are generated by SPORT + * contrtoller. But, RFSDIV and TFSDIV are always set to 16*16-1, + * while the max AC97 data size is 13*16. The DIV is always larger + * than data size. AD73311 and ad2602 are not running in TDM mode. + * AD1836 and AD73322 depend on external RFS/TFS only. So, this + * anomaly does not affect blackfin sound drivers. +*/ + static int *cmd_count; static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM; diff --git a/sound/soc/blackfin/bf5xx-sport.c b/sound/soc/blackfin/bf5xx-sport.c index b7953c8cf83..469ce7fab20 100644 --- a/sound/soc/blackfin/bf5xx-sport.c +++ b/sound/soc/blackfin/bf5xx-sport.c @@ -190,7 +190,7 @@ static inline int sport_hook_rx_dummy(struct sport_device *sport) desc = get_dma_next_desc_ptr(sport->dma_rx_chan); /* Copy the descriptor which will be damaged to backup */ temp_desc = *desc; - desc->x_count = 0xa; + desc->x_count = sport->dummy_count / 2; desc->y_count = 0; desc->next_desc_addr = sport->dummy_rx_desc; local_irq_restore(flags); @@ -309,7 +309,7 @@ static inline int sport_hook_tx_dummy(struct sport_device *sport) desc = get_dma_next_desc_ptr(sport->dma_tx_chan); /* Store the descriptor which will be damaged */ temp_desc = *desc; - desc->x_count = 0xa; + desc->x_count = sport->dummy_count / 2; desc->y_count = 0; desc->next_desc_addr = sport->dummy_tx_desc; local_irq_restore(flags); |