ASoC: rsnd: ctu: add rsnd_ctu_halt()

Based on datasheet process

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c
index 0dc451803eb6..7b482f36cb63 100644
--- a/sound/soc/sh/rcar/ctu.c
+++ b/sound/soc/sh/rcar/ctu.c
@@ -31,6 +31,12 @@ static void rsnd_ctu_activation(struct rsnd_mod *mod)
         rsnd_mod_write(mod, CTU_SWRSR, 1);
 }
 
+static void rsnd_ctu_halt(struct rsnd_mod *mod)
+{
+        rsnd_mod_write(mod, CTU_CTUIR, 1);
+        rsnd_mod_write(mod, CTU_SWRSR, 0);
+}
+
 #define rsnd_ctu_initialize_lock(mod)   __rsnd_ctu_initialize_lock(mod, 1)
 #define rsnd_ctu_initialize_unlock(mod) __rsnd_ctu_initialize_lock(mod, 0)
 static void __rsnd_ctu_initialize_lock(struct rsnd_mod *mod, u32 enable)
@@ -66,6 +72,8 @@ static int rsnd_ctu_quit(struct rsnd_mod *mod,
                          struct rsnd_dai_stream *io,
                          struct rsnd_priv *priv)
 {
+        rsnd_ctu_halt(mod);
+
         rsnd_mod_power_off(mod);
 
         return 0;