linux-kernel - [PATCH] i3c: master: Enhance i3c_bus_type visibility for device searching & event monitoring

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Message-ID: <20240708053835.3003986-1-bhoomik.gupta@nxp.com>
Date: Mon,  8 Jul 2024 11:08:35 +0530
From: Bhoomik Gupta <bhoomik.gupta@....com>
To: alexandre.belloni@...tlin.com,
	linux-i3c@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Frank.Li@....com,
	Bhoomik Gupta <bhoomik.gupta@....com>
Subject: [PATCH] i3c: master: Enhance i3c_bus_type visibility for device searching & event monitoring

Improve the visibility of i3c_bus_type to facilitate searching for
i3c devices attached to the i3c bus. Enable other drivers to use
bus_register_notifier to monitor i3c bus device events.

Signed-off-by: Bhoomik Gupta <bhoomik.gupta@....com>
---
 drivers/i3c/internals.h    | 2 --
 drivers/i3c/master.c       | 1 +
 include/linux/i3c/master.h | 1 +
 3 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i3c/internals.h b/drivers/i3c/internals.h
index 4d99a3524171..433f6088b7ce 100644
--- a/drivers/i3c/internals.h
+++ b/drivers/i3c/internals.h
@@ -10,8 +10,6 @@
 
 #include <linux/i3c/master.h>
 
-extern const struct bus_type i3c_bus_type;
-
 void i3c_bus_normaluse_lock(struct i3c_bus *bus);
 void i3c_bus_normaluse_unlock(struct i3c_bus *bus);
 
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 3b4d6a8edca3..a211dc4d25bb 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -342,6 +342,7 @@ const struct bus_type i3c_bus_type = {
 	.probe = i3c_device_probe,
 	.remove = i3c_device_remove,
 };
+EXPORT_SYMBOL_GPL(i3c_bus_type);
 
 static enum i3c_addr_slot_status
 i3c_bus_get_addr_slot_status(struct i3c_bus *bus, u16 addr)
diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h
index 0ca27dd86956..074f632868d9 100644
--- a/include/linux/i3c/master.h
+++ b/include/linux/i3c/master.h
@@ -33,6 +33,7 @@ enum {
 struct i3c_master_controller;
 struct i3c_bus;
 struct i3c_device;
+extern const struct bus_type i3c_bus_type;
 
 /**
  * struct i3c_i2c_dev_desc - Common part of the I3C/I2C device descriptor
-- 
2.45.2