linux-kernel - [PATCH] i3c: transfer pid from boardinfo to device info

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Date:   Thu,  5 Jan 2023 16:29:52 -0500
From:   Jack Chen <zenghuchen@...gle.com>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     linux-i3c@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jesus Sanchez-Palencia <jesussanp@...gle.com>,
        Mark Slevinsky <markslevinsky@...gle.com>,
        Jack Chen <zenghuchen@...gle.com>
Subject: [PATCH] i3c: transfer pid from boardinfo to device info

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@...gle.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