From: Matthias Blankertz matthias.blankertz@cetitec.com

[ Upstream commit 0c258657ddfe81b4fc0183378d800c97ba0b7cdd ]

The master SSI of a multi-SSI setup was attached both to the RSND_MOD_SSI slot and the RSND_MOD_SSIP slot of the rsnd_dai_stream. This is not correct wrt. the meaning of being "parent" in the rest of the SSI code, where it seems to indicate an SSI that provides clock and word sync but is not transmitting/receiving audio data.

Not treating the multi-SSI master as parent allows removal of various special cases to the rsnd_ssi_is_parent conditions introduced in commit a09fb3f28a60 ("ASoC: rsnd: Fix parent SSI start/stop in multi-SSI mode"). It also fixes the issue that operations performed via rsnd_dai_call() were performed twice for the master SSI. This caused some "status check failed" spam when stopping a multi-SSI stream as the driver attempted to stop the master SSI twice.

Signed-off-by: Matthias Blankertz matthias.blankertz@cetitec.com Acked-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/20200417153017.1744454-2-matthias.blankertz@cetite... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/sh/rcar/ssi.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index d51fb3a394486..9900a4f6f4e53 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -407,7 +407,7 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod, * We shouldn't exchange SWSP after running. * This means, parent needs to care it. */ - if (rsnd_ssi_is_parent(mod, io) && !rsnd_ssi_multi_slaves(io)) + if (rsnd_ssi_is_parent(mod, io)) goto init_end;

if (rsnd_io_is_play(io)) @@ -559,7 +559,7 @@ static int rsnd_ssi_start(struct rsnd_mod *mod, * EN is for data output. * SSI parent EN is not needed. */ - if (rsnd_ssi_is_parent(mod, io) && !rsnd_ssi_multi_slaves(io)) + if (rsnd_ssi_is_parent(mod, io)) return 0;

ssi->cr_en = EN; @@ -582,7 +582,7 @@ static int rsnd_ssi_stop(struct rsnd_mod *mod, if (!rsnd_ssi_is_run_mods(mod, io)) return 0;

- if (rsnd_ssi_is_parent(mod, io) && !rsnd_ssi_multi_slaves(io)) + if (rsnd_ssi_is_parent(mod, io)) return 0;

cr = ssi->cr_own | @@ -620,7 +620,7 @@ static int rsnd_ssi_irq(struct rsnd_mod *mod, if (rsnd_is_gen1(priv)) return 0;

- if (rsnd_ssi_is_parent(mod, io) && !rsnd_ssi_multi_slaves(io)) + if (rsnd_ssi_is_parent(mod, io)) return 0;

if (!rsnd_ssi_is_run_mods(mod, io)) @@ -737,6 +737,9 @@ static void rsnd_ssi_parent_attach(struct rsnd_mod *mod, if (!rsnd_rdai_is_clk_master(rdai)) return;

+ if (rsnd_ssi_is_multi_slave(mod, io)) + return; + switch (rsnd_mod_id(mod)) { case 1: case 2: