lkml.org 
[lkml]   [2023]   [Jan]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH] i3c: transfer pid from boardinfo to device info
From
I3C device PID could be defined in device tree and stored in
i3c_dev_boardinfo. It should be passed to i3c_device_info when
allocating a i3c_dev_desc.
Rational behind this change is: when users decide to use SETDASA to
assign a dynamic address with exactly the original static address, in
step of i3c_master_reattach_i3c_dev, this address is checked to be
taken. Then device information retrieving step is skipped. As a result,
though the i3c device is registered correctly, its device driver could
not be probed.

Tested: Tested with a I3C device. If assigned-address is set to be the
device's static address, without this change, its device driver could
not probed. And with this change, its driver is probed successfully.

Signed-off-by: Jack Chen <zenghuchen@google.com>
---
drivers/i3c/master.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index d7e6f6c99aea..4dad80338831 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -1438,6 +1438,7 @@ static int i3c_master_early_i3c_dev_add(struct i3c_master_controller *master,
{
struct i3c_device_info info = {
.static_addr = boardinfo->static_addr,
+ .pid = boardinfo->pid,
};
struct i3c_dev_desc *i3cdev;
int ret;
--
2.39.0.314.g84b9a713c41-goog
\
 
 \ /
  Last update: 2023-03-26 23:29    [W:0.027 / U:0.828 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site