linux-kernel - [PATCH 2/3] i3c: Add i3c_get_device

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Message-Id: <33ba7e13816fcece0a2f7ec917c18807359c16c7.1555354268.git.vitor.soares@synopsys.com>
Date:   Mon, 15 Apr 2019 21:19:40 +0200
From:   Vitor Soares <vitor.soares@...opsys.com>
To:     linux-iio@...r.kernel.org, linux-i3c@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     pmeerw@...erw.net, lars@...afoo.de, knaack.h@....de,
        jic23@...nel.org, lorenzo.bianconi83@...il.com,
        bbrezillon@...nel.org, rafael@...nel.org,
        gregkh@...uxfoundation.org, broonie@...nel.org,
        joao.pinto@...opsys.com, Vitor Soares <vitor.soares@...opsys.com>
Subject: [PATCH 2/3] i3c: Add i3c_get_device_id helper

This helper return the i3c_device_id structure in order the client
have access to the driver data.

Signed-off-by: Vitor Soares <vitor.soares@...opsys.com>
---
 drivers/i3c/device.c       | 8 ++++++++
 include/linux/i3c/device.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c
index 472be99..8ab8e4c 100644
--- a/drivers/i3c/device.c
+++ b/drivers/i3c/device.c
@@ -235,6 +235,14 @@ struct i3c_device *dev_to_i3cdev(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(dev_to_i3cdev);
 
+const struct i3c_device_id *i3c_get_device_id(struct i3c_device *i3cdev)
+{
+	const struct i3c_driver *i3cdrv = drv_to_i3cdrv(i3cdev->dev.driver);
+
+	return i3cdrv->id_table;
+}
+EXPORT_SYMBOL_GPL(i3c_get_device_id);
+
 /**
  * i3c_driver_register_with_owner() - register an I3C device driver
  *
diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h
index 7ee7e30..ee48886 100644
--- a/include/linux/i3c/device.h
+++ b/include/linux/i3c/device.h
@@ -211,6 +211,7 @@ static inline struct i3c_driver *drv_to_i3cdrv(struct device_driver *drv)
 
 struct device *i3cdev_to_dev(struct i3c_device *i3cdev);
 struct i3c_device *dev_to_i3cdev(struct device *dev);
+const struct i3c_device_id *i3c_get_device_id(struct i3c_device *i3cdev);
 
 static inline void i3cdev_set_drvdata(struct i3c_device *i3cdev,
 				      void *data)
-- 
2.7.4