Commit d4fa7d77 authored by Billy Tsai's avatar Billy Tsai Committed by Alexandre Belloni
Browse files

i3c: master: Free the old_dyn_addr when reattach. 



This patch is used to free the old_dyn_addr when the caller want to
reattach the device to the different dynamic address. If the
old_dyn_addr is 0 the function will treat it as no old_dyn_addr is
reserved on the bus. Without the patch, when the driver reattach the i3c
device after setnewda the old_dyn_addr will be permanently occupied.

Signed-off-by: default avatarBilly Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20220926105145.8145-1-billy_tsai@aspeedtech.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 568035b0

drivers/i3c/master.c

+3 −0
Original line number Diff line number Diff line
@@ -1379,6 +1379,9 @@ static int i3c_master_reattach_i3c_dev(struct i3c_dev_desc *dev, 
		i3c_bus_set_addr_slot_status(&master->bus,

					     dev->info.dyn_addr,

					     I3C_ADDR_SLOT_I3C_DEV);

		if (old_dyn_addr)

			i3c_bus_set_addr_slot_status(&master->bus, old_dyn_addr,

						     I3C_ADDR_SLOT_FREE);

	}



	if (master->ops->reattach_i3c_dev) {