diff options
author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2019-06-26 10:58:56 +0900 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2019-06-26 12:28:14 +0100 |
commit | dfea7b2c5c7eaf657086bb95d61814d7e04d1409 (patch) | |
tree | bb094a8015153460db80348db3a8f4093b4a4501 /sound/soc | |
parent | 472e5df0137e10fbaed0eef38c9bdf99e088ff13 (diff) | |
download | linux-dfea7b2c5c7eaf657086bb95d61814d7e04d1409.tar.bz2 |
ASoC: rsnd: ssiu: tidyup SSI_MODE1/2 settings
R-Car Sound can use pin sharing and multi-SSI for
SSI0/1/2/3/4/9.
Because complex HW settings and spaghetti code,
the settings for SSI9 pin sharing with SSI0 doesn't work.
This patch tidyup settings for it.
Reported-by: Hien Dang <hien.dang.eb@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Chaoliang Qin <chaoliang.qin.jg@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
-rw-r--r-- | sound/soc/sh/rcar/ssiu.c | 92 |
1 files changed, 44 insertions, 48 deletions
diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c index 2347f3404c06..f35d88211887 100644 --- a/sound/soc/sh/rcar/ssiu.c +++ b/sound/soc/sh/rcar/ssiu.c @@ -60,11 +60,11 @@ static int rsnd_ssiu_init(struct rsnd_mod *mod, struct rsnd_priv *priv) { struct rsnd_dai *rdai = rsnd_io_to_rdai(io); - u32 multi_ssi_slaves = rsnd_ssi_multi_slaves_runtime(io); + u32 ssis = rsnd_ssi_multi_slaves_runtime(io); int use_busif = rsnd_ssi_use_busif(io); int id = rsnd_mod_id(mod); - u32 mask1, val1; - u32 mask2, val2; + int is_clk_master = rsnd_rdai_is_clk_master(rdai); + u32 val1, val2; int i; /* clear status */ @@ -89,57 +89,53 @@ static int rsnd_ssiu_init(struct rsnd_mod *mod, rsnd_mod_bset(mod, SSI_MODE0, (1 << id), !use_busif << id); /* - * SSI_MODE1 + * SSI_MODE1 / SSI_MODE2 + * + * FIXME + * sharing/multi with SSI0 are mainly supported */ - mask1 = (1 << 4) | (1 << 20); /* mask sync bit */ - mask2 = (1 << 4); /* mask sync bit */ - val1 = val2 = 0; - if (id == 8) { - /* - * SSI8 pin is sharing with SSI7, nothing to do. - */ - } else if (rsnd_ssi_is_pin_sharing(io)) { - int shift = -1; - - switch (id) { - case 1: - shift = 0; - break; - case 2: - shift = 2; - break; - case 4: - shift = 16; - break; - default: - return -EINVAL; - } - - mask1 |= 0x3 << shift; - val1 = rsnd_rdai_is_clk_master(rdai) ? - 0x2 << shift : 0x1 << shift; + val1 = rsnd_mod_read(mod, SSI_MODE1); + val2 = rsnd_mod_read(mod, SSI_MODE2); + if (rsnd_ssi_is_pin_sharing(io)) { - } else if (multi_ssi_slaves) { + ssis |= (1 << id); - mask2 |= 0x00000007; - mask1 |= 0x0000000f; - - switch (multi_ssi_slaves) { - case 0x0206: /* SSI0/1/2/9 */ - val2 = (1 << 4) | /* SSI0129 sync */ - (rsnd_rdai_is_clk_master(rdai) ? 0x2 : 0x1); - /* fall through */ - case 0x0006: /* SSI0/1/2 */ - val1 = rsnd_rdai_is_clk_master(rdai) ? - 0xa : 0x5; + } else if (ssis) { + /* + * Multi SSI + * + * set synchronized bit here + */ - if (!val2) /* SSI012 sync */ - val1 |= (1 << 4); - } + /* SSI4 is synchronized with SSI3 */ + if (ssis & (1 << 4)) + val1 |= (1 << 20); + /* SSI012 are synchronized */ + if (ssis == 0x0006) + val1 |= (1 << 4); + /* SSI0129 are synchronized */ + if (ssis == 0x0206) + val2 |= (1 << 4); } - rsnd_mod_bset(mod, SSI_MODE1, mask1, val1); - rsnd_mod_bset(mod, SSI_MODE2, mask2, val2); + /* SSI1 is sharing pin with SSI0 */ + if (ssis & (1 << 1)) + val1 |= is_clk_master ? 0x2 : 0x1; + + /* SSI2 is sharing pin with SSI0 */ + if (ssis & (1 << 2)) + val1 |= is_clk_master ? 0x2 << 2 : + 0x1 << 2; + /* SSI4 is sharing pin with SSI3 */ + if (ssis & (1 << 4)) + val1 |= is_clk_master ? 0x2 << 16 : + 0x1 << 16; + /* SSI9 is sharing pin with SSI0 */ + if (ssis & (1 << 9)) + val2 |= is_clk_master ? 0x2 : 0x1; + + rsnd_mod_bset(mod, SSI_MODE1, 0x0013001f, val1); + rsnd_mod_bset(mod, SSI_MODE2, 0x00000017, val2); return 0; } |