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ASoC: rsnd: fixup SSI clock during suspend/resume modes

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Prepare <-> Cleanup functions pair has balanced calls.
But in case of suspend mode no call to rsnd_soc_dai_shutdown()
function, so cleanup isn't called. OTOH during resume mode
function rsnd_soc_dai_prepare() is called, but calling
rsnd_ssi_prepare() is skipped (rsnd_status_update() returns zero,
bacause was not cleanup before).
We need to call rsnd_ssi_prepare(), because it enables SSI clocks
by calling rsnd_ssi_master_clk_start().

This patch allows to call prepare/cleanup functions always.

Signed-off-by: Dmytro Prokopchuk <dmytro.prokopchuk@globallogic.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
[kuninori: adjusted to upstream]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dmytro Prokopchuk
2018-09-21 04:59:59 +00:00
committed by Mark Brown
parent c78d42c7fb
commit 624d1a7cd8
2 changed files with 10 additions and 11 deletions
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7
sound/soc/sh/rcar/dma.c
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@@ -134,10 +134,9 @@ static int rsnd_dmaen_prepare(struct rsnd_mod *mod,
struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
struct device *dev = rsnd_priv_to_dev(priv);
if (dmaen->chan) {
dev_err(dev, "it already has dma channel\n");
return -EIO;
}
/* maybe suspended */
if (dmaen->chan)
return 0;
/*
* DMAEngine request uses mutex lock.