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ASoC: SDCA: Add comment for function reset polling

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Add a comment to better explain the function reset polling rate.

Tested-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Tested-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20251120153023.2105663-6-ckeepax@opensource.cirrus.com
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax
2025-11-20 15:30:14 +00:00
committed by Mark Brown
parent cc58055bfe
commit 336beae295
1 changed files with 4 additions and 0 deletions
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4
sound/soc/sdca/sdca_fdl.c
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@@ -51,6 +51,10 @@ int sdca_reset_function(struct device *dev, struct sdca_function_data *function,
return -EINVAL;
}
/*
* Poll up to 16 times but no more than once per ms, these are just
* arbitrarily selected values, so may be fine tuned in future.
*/
poll_us = umin(function->reset_max_delay >> 4, 1000);
ret = regmap_read_poll_timeout(regmap, reg, val, !val, poll_us,