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authorSonic Zhang <sonic.zhang@analog.com>2009-06-02 00:18:57 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-06-03 11:31:42 +0100
commitcf485da15a3b507c7dab42337639e4f4025d3373 (patch)
tree08c32d41634b21cac67e6ffb082c41220407e70f /sound
parent80d5bd93143439aff77fd246f5d06570b7a4641e (diff)
ASoC: Blackfin: document how anomaly 05000250 is handled
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/blackfin/bf5xx-ac97.c9
1 files changed, 9 insertions, 0 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;