[PATCH linux-next v2 1/1] ASoC: rsnd: ssiu: clear SSI_MODE for non TDM Extended modes

From: Jiada Wang
Date: Tue Nov 28 2017 - 02:05:16 EST


register SSI_MODE is set when SSI works in TDM Extended,
but it isn't reset when SSI starts to work in other modes,
thus causes issues.

This patch clearss SSI_MODE register when SSI works in modes
other than TDM Extended.

Fixes: 186fadc132f0 ("ASoC: rsnd: add TDM Extend Mode support")

Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
---
sound/soc/sh/rcar/ssiu.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c
index 4d94875..6ff8a36 100644
--- a/sound/soc/sh/rcar/ssiu.c
+++ b/sound/soc/sh/rcar/ssiu.c
@@ -125,6 +125,7 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod,
{
int hdmi = rsnd_ssi_hdmi_port(io);
int ret;
+ u32 mode = 0;

ret = rsnd_ssiu_init(mod, io, priv);
if (ret < 0)
@@ -136,9 +137,11 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod,
* see
* rsnd_ssi_config_init()
*/
- rsnd_mod_write(mod, SSI_MODE, 0x1);
+ mode = 0x1;
}

+ rsnd_mod_write(mod, SSI_MODE, mode);
+
if (rsnd_ssi_use_busif(io)) {
rsnd_mod_write(mod, SSI_BUSIF_ADINR,
rsnd_get_adinr_bit(mod, io) |
--
2.9.3