On Tue, 18 Jun 2024 15:00:11 +0200, Simon Trimmer wrote:

It is possible that during system boot when there multiple devices attempting simultaneous initialization on a slow control bus the download of firmware and tuning data may take a user perceivable amount of time (a slow I2C bus with 4 amps this work could take over 2 seconds).

Adopt a pattern used in the ASoC driver and perform this activity in a background thread so that interactive performance is not impaired. The system_long_wq is a parallel workqueue and driver instances will perform their firmware downloads in parallel to make best use of available bus bandwidth.

Signed-off-by: Simon Trimmer simont@opensource.cirrus.com

Thanks, applied now to for-next branch.

Takashi