clk: refactor clk_get_by_index() into clk_get_by_indexed_prop()

The logic in clk_get_by_index() may be useful for other properties
than 'clocks': e.g. 'assigned-clocks' and 'assigned-clock-parents'
follows the same model.

This commit refactors clk_get_by_index() by introducing an internal
function clk_get_by_indexed_prop() that allows to specify the name
of the property to process.  The original clk_get_by_index() call
is simply directed through this helper function with the property
name fixed to "clocks".

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: David Wu <david.wu@rock-chips.com>
Series-changes: 2
- Fixed David's email address.

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 20ee0c5424dde931dac8d679b0f44c138fb6c45c..7fdf16df8633b15ddae04376b75101d58d927182 100644 (file)
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -53,7 +53,8 @@ static int clk_of_xlate_default(struct clk *clk,
        return 0;
 }
 
-int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
+static int clk_get_by_indexed_prop(struct udevice *dev, const char *prop_name,
+                                  int index, struct clk *clk)
 {
        int ret;
        struct ofnode_phandle_args args;
@@ -65,7 +66,7 @@ int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
        assert(clk);
        clk->dev = NULL;
 
-       ret = dev_read_phandle_with_args(dev, "clocks", "#clock-cells", 0,
+       ret = dev_read_phandle_with_args(dev, prop_name, "#clock-cells", 0,
                                         index, &args);
        if (ret) {
                debug("%s: fdtdec_parse_phandle_with_args failed: err=%d\n",
@@ -95,6 +96,11 @@ int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
 
        return clk_request(dev_clk, clk);
 }
+
+int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
+{
+       return clk_get_by_indexed_prop(dev, "clocks", index, clk);
+}
 # endif /* OF_PLATDATA */
 
 int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk)