diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2016-10-26 07:29:21 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-10-26 19:46:17 +0300 |
| commit | 814efe3ed72d1cad926e21b8d0869a1ea74bb9dd (patch) | |
| tree | d346715748401a4ced274583ec06b8afaf9aade7 /sound/soc/sh/rcar/ssiu.c | |
| parent | 42b197e794dbe961cbcebd9e4963252c96cc77f9 (diff) | |
| download | linux-814efe3ed72d1cad926e21b8d0869a1ea74bb9dd.tar.xz | |
ASoC: rsnd: clear SSI_SYS_STATUSx every time
Renesas sound SSIU has SSI_SYS_STATUS register whick will
be changed if over/under run was occurred.
Current rsnd driver is handling over/under run error on SSI/SRC,
but doesn't on SSIU.
HW guys can't guarantee correct behavior if it already had error bit
on status register when it start.
Thus, it should be cleared every start timing. This patch do it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh/rcar/ssiu.c')
| -rw-r--r-- | sound/soc/sh/rcar/ssiu.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c index 6f9b388ec5a8..4e817c8a18c0 100644 --- a/sound/soc/sh/rcar/ssiu.c +++ b/sound/soc/sh/rcar/ssiu.c @@ -33,6 +33,26 @@ static int rsnd_ssiu_init(struct rsnd_mod *mod, u32 mask1, val1; u32 mask2, val2; + /* clear status */ + switch (id) { + case 0: + case 1: + case 2: + case 3: + case 4: + rsnd_mod_write(mod, SSI_SYS_STATUS0, 0xf << (id * 4)); + rsnd_mod_write(mod, SSI_SYS_STATUS2, 0xf << (id * 4)); + rsnd_mod_write(mod, SSI_SYS_STATUS4, 0xf << (id * 4)); + rsnd_mod_write(mod, SSI_SYS_STATUS6, 0xf << (id * 4)); + break; + case 9: + rsnd_mod_write(mod, SSI_SYS_STATUS1, 0xf << 4); + rsnd_mod_write(mod, SSI_SYS_STATUS3, 0xf << 4); + rsnd_mod_write(mod, SSI_SYS_STATUS5, 0xf << 4); + rsnd_mod_write(mod, SSI_SYS_STATUS7, 0xf << 4); + break; + } + /* * SSI_MODE0 */ |