The newdev->boardinfo assignment was missing in i3c_master_add_i3c_dev_locked() and hence the ->of_node info isn't propagated to i3c_dev_desc.
Fix this by trying to initialize device i3c_dev_boardinfo if available.
Cc: stable@vger.kernel.org Fixes: 3a379bbcea0a ("i3c: Add core I3C infrastructure") Signed-off-by: Vitor Soares vitor.soares@synopsys.com --- Changes in v2: - Change commit message - Change i3c_master_search_i3c_boardinfo(newdev) to i3c_master_init_i3c_dev_boardinfo(newdev) - Add fixes, stable tags
drivers/i3c/master.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 586e34f..9fb99bc 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -1798,6 +1798,22 @@ i3c_master_search_i3c_dev_duplicate(struct i3c_dev_desc *refdev) return NULL; }
+static void i3c_master_init_i3c_dev_boardinfo(struct i3c_dev_desc *dev) +{ + struct i3c_master_controller *master = i3c_dev_get_master(dev); + struct i3c_dev_boardinfo *boardinfo; + + if (dev->boardinfo) + return; + + list_for_each_entry(boardinfo, &master->boardinfo.i3c, node) { + if (dev->info.pid == boardinfo->pid) { + dev->boardinfo = boardinfo; + return; + } + } +} + /** * i3c_master_add_i3c_dev_locked() - add an I3C slave to the bus * @master: master used to send frames on the bus @@ -1818,8 +1834,9 @@ int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master, u8 addr) { struct i3c_device_info info = { .dyn_addr = addr }; - struct i3c_dev_desc *newdev, *olddev; u8 old_dyn_addr = addr, expected_dyn_addr; + enum i3c_addr_slot_status addrstatus; + struct i3c_dev_desc *newdev, *olddev; struct i3c_ibi_setup ibireq = { }; bool enable_ibi = false; int ret; @@ -1878,6 +1895,8 @@ int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master, if (ret) goto err_detach_dev;
+ i3c_master_init_i3c_dev_boardinfo(newdev); + /* * Depending on our previous state, the expected dynamic address might * differ: @@ -1895,7 +1914,11 @@ int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master, else expected_dyn_addr = newdev->info.dyn_addr;
- if (newdev->info.dyn_addr != expected_dyn_addr) { + addrstatus = i3c_bus_get_addr_slot_status(&master->bus, + expected_dyn_addr); + + if (newdev->info.dyn_addr != expected_dyn_addr && + addrstatus == I3C_ADDR_SLOT_FREE) { /* * Try to apply the expected dynamic address. If it fails, keep * the address assigned by the master.