[PATCH 3/4] drivers: clk: Fix invalid clock name queries

[Jolly Shah]

From: Rajan Vaja <rajan.vaja@xxxxxxxxxx>

The clock driver makes EEMI call to get the name of invalid clk
when executing versal_get_clock_info() function. This results in
error messages.
Added check for validating clock before saving clock attribute and
calling zynqmp_pm_clock_get_name() in versal_get_clock_info() function.

Signed-off-by: Rajan Vaja <rajan.vaja@xxxxxxxxxx>
Signed-off-by: Tejas Patel <tejas.patel@xxxxxxxxxx>
Signed-off-by: Jolly Shah <jolly.shah@xxxxxxxxxx>
---
 drivers/clk/zynqmp/clkc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/clk/zynqmp/clkc.c b/drivers/clk/zynqmp/clkc.c
index 4dd8413..ff2d229 100644
--- a/drivers/clk/zynqmp/clkc.c
+++ b/drivers/clk/zynqmp/clkc.c
@@ -667,6 +667,11 @@ static void zynqmp_get_clock_info(void)
 			continue;
 
 		clock[i].valid = FIELD_GET(CLK_ATTR_VALID, attr.attr[0]);
+		/* skip query for Invalid clock */
+		ret = zynqmp_is_valid_clock(i);
+		if (ret != CLK_ATTR_VALID)
+			continue;
+
 		clock[i].type = FIELD_GET(CLK_ATTR_TYPE, attr.attr[0]) ?
 			CLK_TYPE_EXTERNAL : CLK_TYPE_OUTPUT;
 
-- 
2.7.4