Currently the mux_control_get implementation only deals with getting
mux controllers on DT platforms. This commit renames the current
implementation to of_mux_control_get to reflect this and makes
mux_control_get a wrapper around of_mux_control_get.
This is a preparation patch for adding support for getting muxes on
non DT platforms.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/mux/core.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/drivers/mux/core.c b/drivers/mux/core.c
index 6e5cf9d9cd99..99d29f982c0e 100644
--- a/drivers/mux/core.c
+++ b/drivers/mux/core.c
@@ -423,14 +423,8 @@ static struct mux_chip *of_find_mux_chip_by_node(struct device_node *np)
return dev ? to_mux_chip(dev) : NULL;
}
-/**
- * mux_control_get() - Get the mux-control for a device.
- * @dev: The device that needs a mux-control.
- * @mux_name: The name identifying the mux-control.
- *
- * Return: A pointer to the mux-control, or an ERR_PTR with a negative errno.
- */
-struct mux_control *mux_control_get(struct device *dev, const char *mux_name)
+static struct mux_control *of_mux_control_get(struct device *dev,
+ const char *mux_name)
{
struct device_node *np = dev->of_node;
struct of_phandle_args args;
@@ -484,6 +478,22 @@ struct mux_control *mux_control_get(struct device *dev, const char *mux_name)
return &mux_chip->mux[controller];
}
+
+/**
+ * mux_control_get() - Get the mux-control for a device.
+ * @dev: The device that needs a mux-control.
+ * @mux_name: The name identifying the mux-control.
+ *
+ * Return: A pointer to the mux-control, or an ERR_PTR with a negative errno.
+ */
+struct mux_control *mux_control_get(struct device *dev, const char *mux_name)
+{
+ /* look up via DT first */
+ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
+ return of_mux_control_get(dev, mux_name);
+
+ return ERR_PTR(-ENODEV);
+}
EXPORT_SYMBOL_GPL(mux_control_get);
/**
--
2.13.5
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
