clk: imx: scu: Make pd_np with static keyword

Fix the following sparse warning:

./clk-scu.c:23:20: warning: symbol 'pd_np' was not declared. Should it be static?

Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Zou Wei <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
index d0243c52ccbc..d10f60e48ece 100644
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -20,7 +20,7 @@
 #define IMX_SIP_SET_CPUFREQ		0x00
 
 static struct imx_sc_ipc *ccm_ipc_handle;
-struct device_node *pd_np;
+static struct device_node *pd_np;
 static struct platform_driver imx_clk_scu_driver;
 
 struct imx_scu_clk_node {