diff options
| author | Douglas Anderson <dianders@chromium.org> | 2021-08-11 08:17:56 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-15 10:02:21 +0200 |
| commit | 7331e96735d03f3cf7e8a65acebe4e80253c6ff0 (patch) | |
| tree | 379999dbaec0bd30b89f85b13e0d6fcb43ec3db4 /sound | |
| parent | 06b7035bcf1dd3e0f34012234c9f9efb2cfe7436 (diff) | |
ASoC: rt5682: Properly turn off regulators if wrong device ID
[ Upstream commit 772d44526e203c062171786e514373f129616278 ]
When I booted up on a board that had a slightly different codec
stuffed on it, I got this message at bootup:
rt5682 9-001a: Device with ID register 6749 is not rt5682
That's normal/expected, but what wasn't normal was the splat that I
got after:
WARNING: CPU: 7 PID: 176 at drivers/regulator/core.c:2151 _regulator_put+0x150/0x158
pc : _regulator_put+0x150/0x158
...
Call trace:
_regulator_put+0x150/0x158
regulator_bulk_free+0x48/0x70
devm_regulator_bulk_release+0x20/0x2c
release_nodes+0x1cc/0x244
devres_release_all+0x44/0x60
really_probe+0x17c/0x378
...
This is because the error paths don't turn off the regulator. Let's
fix that.
Fixes: 0ddce71c21f0 ("ASoC: rt5682: add rt5682 codec driver")
Fixes: 87b42abae99d ("ASoC: rt5682: Implement remove callback")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210811081751.v2.1.I4a1d9aa5d99e05aeee15c2768db600158d76cab8@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/rt5682-i2c.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt5682-i2c.c b/sound/soc/codecs/rt5682-i2c.c index 4a56a52adab5..e559b965a0a6 100644 --- a/sound/soc/codecs/rt5682-i2c.c +++ b/sound/soc/codecs/rt5682-i2c.c @@ -117,6 +117,13 @@ static struct snd_soc_dai_driver rt5682_dai[] = { }, }; +static void rt5682_i2c_disable_regulators(void *data) +{ + struct rt5682_priv *rt5682 = data; + + regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); +} + static int rt5682_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -157,6 +164,11 @@ static int rt5682_i2c_probe(struct i2c_client *i2c, return ret; } + ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators, + rt5682); + if (ret) + return ret; + ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); if (ret) { @@ -285,7 +297,6 @@ static int rt5682_i2c_remove(struct i2c_client *client) struct rt5682_priv *rt5682 = i2c_get_clientdata(client); rt5682_i2c_shutdown(client); - regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); return 0; } |