From: Mikko Perttunen > Sent: 11 January 2021 13:56 > > Upon a communication error, the interrupt handler can call > tegra_i2c_disable_packet_mode. This causes a sleeping poll to happen > unless the current transaction was marked atomic. Since > tegra_i2c_disable_packet_mode is only called from the interrupt path, > make it use atomic waiting always. Spin-waiting in an ISR for anything that it makes sense to do a sleep-wait for at other times is badly broken design. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
