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i3c: master add i3c_master_attach_boardinfo to preserve boardinfo 

[ Upstream commit 9da36a7ec42135428e1d41621e3703429bda3b2e ]

Boardinfo was lost if I3C object for devices with boardinfo
available are not created or not added to the I3C device list
because of some failure e.g. SETDASA failed, retrieve info failed etc
This patch adds i3c_master_attach_boardinfo which scan boardinfo list
in the master object and 'attach' it to the I3C device object.

Fixes: 3a379bbcea ("i3c: Add core I3C infrastructure")
Signed-off-by: Parshuram Thombare <pthombar@cadence.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-i3c/1590053542-389-1-git-send-email-pthombar@cadence.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Parshuram Thombare 2020-05-21 11:32:22 +02:00 committed by Greg Kroah-Hartman
parent e7f826cd20
commit 8d44d75812
1 changed files with 17 additions and 2 deletions
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19
drivers/i3c/master.c
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@ -1760,6 +1760,21 @@ static void i3c_master_bus_cleanup(struct i3c_master_controller *master)
i3c_master_detach_free_devs(master);
}
static void i3c_master_attach_boardinfo(struct i3c_dev_desc *i3cdev)
{
struct i3c_master_controller *master = i3cdev->common.master;
struct i3c_dev_boardinfo *i3cboardinfo;
list_for_each_entry(i3cboardinfo, &master->boardinfo.i3c, node) {
if (i3cdev->info.pid != i3cboardinfo->pid)
continue;
i3cdev->boardinfo = i3cboardinfo;
i3cdev->info.static_addr = i3cboardinfo->static_addr;
return;
}
}
static struct i3c_dev_desc *
i3c_master_search_i3c_dev_duplicate(struct i3c_dev_desc *refdev)
{
@ -1815,10 +1830,10 @@ int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master,
if (ret)
goto err_detach_dev;
i3c_master_attach_boardinfo(newdev);
olddev = i3c_master_search_i3c_dev_duplicate(newdev);
if (olddev) {
newdev->boardinfo = olddev->boardinfo;
newdev->info.static_addr = olddev->info.static_addr;
newdev->dev = olddev->dev;
if (newdev->dev)
newdev->dev->desc = newdev;