[PATCH] clk: versal: Update the reference clocks as per bindings

[Venkatesh Yadav Abbarapu]

As per the bindings the reference clocks naming has changed
from "pl_alt_ref_clk" to "pl_alt_ref" and "ref_clk" to "ref".
Update the same in the clock driver. Also add the fallback option
for older DT bindings.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbar...@amd.com>
---
 drivers/clk/clk_versal.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk_versal.c b/drivers/clk/clk_versal.c
index 35ee56d0693..3e471670a87 100644
--- a/drivers/clk/clk_versal.c
+++ b/drivers/clk/clk_versal.c
@@ -679,12 +679,21 @@ static int versal_clk_probe(struct udevice *dev)
 
        debug("%s\n", __func__);
 
-       ret = versal_clock_get_freq_by_name("pl_alt_ref_clk",
+       ret = versal_clock_get_freq_by_name("pl_alt_ref",
                                            dev, &pl_alt_ref_clk);
+       if (ret == -ENODATA) {
+               /* Fallback to old DT binding clk name "pl_alt_ref_clk" */
+               ret = versal_clock_get_freq_by_name("pl_alt_ref_clk",
+                                                   dev, &pl_alt_ref_clk);
+       }
        if (ret < 0)
                return -EINVAL;
 
-       ret = versal_clock_get_freq_by_name("ref_clk", dev, &ref_clk);
+       ret = versal_clock_get_freq_by_name("ref", dev, &ref_clk);
+       if (ret == -ENODATA) {
+               /* Fallback to old DT binding clk name "ref_clk" */
+               ret = versal_clock_get_freq_by_name("ref_clk", dev, &ref_clk);
+       }
        if (ret < 0)
                return -EINVAL;
 
-- 
2.25.1