linux-kernel - [PATCH v1 1/6] i2c: acpi: Export i2c_acpi_find_client_by

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Message-Id: <20210526124322.48915-1-andriy.shevchenko@linux.intel.com>
Date:   Wed, 26 May 2021 15:43:17 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Wolfram Sang <wsa@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        linux-i2c@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH v1 1/6] i2c: acpi: Export i2c_acpi_find_client_by_adev() for users

There is at least one user that will gain from the
i2c_acpi_find_client_by_adev() being exported.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/i2c/i2c-core-acpi.c | 3 ++-
 include/linux/i2c.h         | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 8ceaa88dd78f..5be37a5efcb4 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -387,7 +387,7 @@ struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
 }
 EXPORT_SYMBOL_GPL(i2c_acpi_find_adapter_by_handle);
 
-static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
+struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
 {
 	struct device *dev;
 	struct i2c_client *client;
@@ -402,6 +402,7 @@ static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
 
 	return client;
 }
+EXPORT_SYMBOL_GPL(i2c_acpi_find_client_by_adev);
 
 static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value,
 			   void *arg)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index e8f2ac8c9c3d..335dc4f5abbb 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -995,6 +995,7 @@ static inline int of_i2c_get_board_info(struct device *dev,
 
 #endif /* CONFIG_OF */
 
+struct acpi_device;
 struct acpi_resource;
 struct acpi_resource_i2c_serialbus;
 
@@ -1005,6 +1006,7 @@ u32 i2c_acpi_find_bus_speed(struct device *dev);
 struct i2c_client *i2c_acpi_new_device(struct device *dev, int index,
 				       struct i2c_board_info *info);
 struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle);
+struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev);
 #else
 static inline bool i2c_acpi_get_i2c_resource(struct acpi_resource *ares,
 					     struct acpi_resource_i2c_serialbus **i2c)
@@ -1024,6 +1026,10 @@ static inline struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle ha
 {
 	return NULL;
 }
+static inline struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
+{
+	return NULL;
+}
 #endif /* CONFIG_ACPI */
 
 #endif /* _LINUX_I2C_H */
-- 
2.30.2