diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2015-03-26 04:02:09 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-03-27 15:59:17 -0700 |
| commit | 2f78dd7f40264697afed4c2ac0890df8f0588e49 (patch) | |
| tree | 9d37d40fef4bbf1161f9d447def5273d242dbf93 /sound/soc/sh/rcar/dvc.c | |
| parent | c517d838eb7d07bbe9507871fab3931deccff539 (diff) | |
ASoC: rsnd: call clk_prepare/unprepare() in probe/remove
clk_prepare_enable()/clk_disable_unprepare() uses mutex inside,
in concretely clk_prepare()/clk_unprepare().And it uses __schedule().
Then, raw_spin_lock/unlock_irq() is called, and it breaks Renesas
sound driver's spin lock irq.
This patch separates thesse into clk_prepare()/clk_unprepare() and
clk_enable/clk_disable. And call clk_prepare()/clk_unprepare() from
probe/remove function. Special thanks to Das Biju.
Reported-by: Das Biju <biju.das@bp.renesas.com>
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/dvc.c')
| -rw-r--r-- | sound/soc/sh/rcar/dvc.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c index d7f9ed959c4e..261997a3f589 100644 --- a/sound/soc/sh/rcar/dvc.c +++ b/sound/soc/sh/rcar/dvc.c @@ -333,7 +333,7 @@ int rsnd_dvc_probe(struct platform_device *pdev, struct rsnd_dvc *dvc; struct clk *clk; char name[RSND_DVC_NAME_SIZE]; - int i, nr; + int i, nr, ret; rsnd_of_parse_dvc(pdev, of_data, priv); @@ -366,11 +366,24 @@ int rsnd_dvc_probe(struct platform_device *pdev, dvc->info = &info->dvc_info[i]; - rsnd_mod_init(&dvc->mod, &rsnd_dvc_ops, + ret = rsnd_mod_init(&dvc->mod, &rsnd_dvc_ops, clk, RSND_MOD_DVC, i); + if (ret) + return ret; dev_dbg(dev, "CMD%d probed\n", i); } return 0; } + +void rsnd_dvc_remove(struct platform_device *pdev, + struct rsnd_priv *priv) +{ + struct rsnd_dvc *dvc; + int i; + + for_each_rsnd_dvc(dvc, priv, i) { + rsnd_mod_quit(&dvc->mod); + } +} |