Hi Jensen, On Wed, Dec 06, 2023 at 05:06:40PM +0800, Jensen Huang wrote: > Possible deadlock scenario (on reboot): > rk3x_i2c_xfer_common(polling) > -> rk3x_i2c_wait_xfer_poll() > -> rk3x_i2c_irq(0, i2c); > --> spin_lock(&i2c->lock); > ... > <rk3x i2c interrupt> > -> rk3x_i2c_irq(0, i2c); > --> spin_lock(&i2c->lock); (deadlock here) > > Store the IRQ number and disable/enable it around the polling transfer. > This patch has been tested on NanoPC-T4. > > Signed-off-by: Jensen Huang <jensenhuang@xxxxxxxxxxxxxxx> Looks good, Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxx> Thanks, Andi
