[PATCH 04/27] clk: ti: clkctrl: use fallback udelay approach if timekeeping is suspended

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This will happen on certain platforms when entering / leaving suspend
and the system attempts to disable certain clocks at very early/late
phase, burping out a warning from timekeeping core. Avoid the issue
by checking if the timekeeping is suspended and using the fallback
udelay approach for checking timeouts.

Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
 drivers/clk/ti/clkctrl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c
index 284ba449..91ddc92 100644
--- a/drivers/clk/ti/clkctrl.c
+++ b/drivers/clk/ti/clkctrl.c
@@ -21,6 +21,7 @@
 #include <linux/of_address.h>
 #include <linux/clk/ti.h>
 #include <linux/delay.h>
+#include <linux/timekeeping.h>
 #include "clock.h"
 
 #define NO_IDLEST			0x1
@@ -90,7 +91,7 @@ static bool _omap4_is_ready(u32 val)
 
 static bool _omap4_is_timeout(union omap4_timeout *time, u32 timeout)
 {
-	if (unlikely(_early_timeout)) {
+	if (unlikely(_early_timeout || timekeeping_suspended)) {
 		if (time->cycles++ < timeout) {
 			udelay(1);
 			return false;
-- 
1.9.1

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