[PATCH] clk: stm32mp1: remove error for disabled clock in stm32mp1_clk_get_parent

[Patrick Delaunay]

To disabled a clock in clock tree initialization for a mux of STM32MP15,
the selected clock source index is set with the latest possible index for
the number of bit used. Today this valid configuration cause a error
in U-Boot messages, for example with CLK_ETH_DISABLED, when this clock
is not needed for the used ETH PHY without crystal:

   no parents defined for clk id 123

This patch change the level of this message to avoid this trace for
valid clock tree.

Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
---

 drivers/clk/stm32/clk-stm32mp1.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/stm32/clk-stm32mp1.c b/drivers/clk/stm32/clk-stm32mp1.c
index 4f4524fcb2c6..615028769495 100644
--- a/drivers/clk/stm32/clk-stm32mp1.c
+++ b/drivers/clk/stm32/clk-stm32mp1.c
@@ -881,7 +881,8 @@ static int stm32mp1_clk_get_parent(struct stm32mp1_clk_priv *priv,
 		return sel[s].parent[p];
 	}
 
-	log_err("no parents defined for clk id %d\n", (u32)id);
+	/* clock is DISABLED when the clock src is not in clk_parent[] range */
+	log_debug("no parents defined for clk id %d\n", (u32)id);
 
 	return -EINVAL;
 }
-- 
2.25.1