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fee12f3c20
Replace the wait_for_completion_timeout() in sdw_prep_deprep_slave_ports() with a read_poll_timeout(). The original intent of the wait_for_completion_timeout() was to wait for the port prepare interrupt. But at this time the code is holding the bus_lock, which prevents the interrupt handler from running. Because of this, the port_prep completion will not be signaled and the wait_for_completion_timeout() will always timeout. Rewriting the code to avoid taking the bus_lock carries risks, and needs careful consideration of the consequences. It is safer and simpler to replace the completion with a simple register poll. As the code is holding the bus_lock, it is already blocking other activity so consuming control channel bandwidth for polling isn't really a concern. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Link: https://patch.msgid.link/20260227111648.175548-1-rf@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2246 lines
54 KiB
2246 lines
54 KiB