i3c: master: Fix SETDASA process

When a I3C DT node has a static_addr and an init_dyn_addr,the
init_dyn_addr is reserved in i3c_master_bus_init() and then
the static_addr is reserved in i3c_master_early_i3c_dev_add().
But if the dynamic address is same as static then above
procedure would fail.
Add a check to pass i3c_bus_get_addr_slot_status() when static
and dynamic address are equal.

Signed-off-by: Aniket <aniketmaurya@google.com>
Link: https://lore.kernel.org/r/20230822051938.2852567-1-aniketmaurya@google.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 08aeb69..87283e4 100644 (file)
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -1308,7 +1308,11 @@ static int i3c_master_get_i3c_addrs(struct i3c_dev_desc *dev)
        if (dev->info.static_addr) {
                status = i3c_bus_get_addr_slot_status(&master->bus,
                                                      dev->info.static_addr);
-               if (status != I3C_ADDR_SLOT_FREE)
+               /* Since static address and assigned dynamic address can be
+                * equal, allow this case to pass.
+                */
+               if (status != I3C_ADDR_SLOT_FREE &&
+                   dev->info.static_addr != dev->boardinfo->init_dyn_addr)
                        return -EBUSY;
 
                i3c_bus_set_addr_slot_status(&master->bus,