On Thu, Dec 07, 2023 at 04:21:59PM +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> > Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx> > Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxx> Applied to for-current, thanks! But I'd like to see the follow-up patches somewhen which have been discussed in this thread.
Attachment:
signature.asc
Description: PGP signature
