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soundwire: intel: add error log for clock-stop invalid configs

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Detect cases where the clock is assumed to be stopped but the IP is
not in the relevant state. There is no real way to recover here, but
adding an error log can help detect bad programming sequences or race
conditions.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200901150556.19432-9-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2020-09-01 23:05:54 +08:00 committed by Vinod Koul
parent 063ff4e568
commit f748f34ef9
1 changed files with 5 additions and 0 deletions
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5
drivers/soundwire/intel.c
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@ -1931,6 +1931,11 @@ static int intel_resume_runtime(struct device *dev)
}
}
} else if (!clock_stop_quirks) {
clock_stop0 = sdw_cdns_is_clock_stop(&sdw->cdns);
if (!clock_stop0)
dev_err(dev, "%s invalid configuration, clock was not stopped", __func__);
ret = intel_init(sdw);
if (ret) {
dev_err(dev, "%s failed: %d", __func__, ret);