[WATCHDOG] pnx4008: add cpu_relax()

[linux-drm-fsl-dcu.git] / drivers / char / watchdog / pnx4008_wdt.c

diff --git a/drivers/char/watchdog/pnx4008_wdt.c b/drivers/char/watchdog/pnx4008_wdt.c
index 359168e63c1d654aa45ff5eee35ea41b2868cb7b..e7f0450a939d9cf686f78ba957052e15d4b1285f 100644 (file)
--- a/drivers/char/watchdog/pnx4008_wdt.c
+++ b/drivers/char/watchdog/pnx4008_wdt.c
@@ -104,7 +104,8 @@ static void wdt_enable(void)
        /* stop counter, initiate counter reset */
        __raw_writel(RESET_COUNT, WDTIM_CTRL(wdt_base));
        /*wait for reset to complete. 100% guarantee event */
-       while (__raw_readl(WDTIM_COUNTER(wdt_base)));
+       while (__raw_readl(WDTIM_COUNTER(wdt_base)))
+               cpu_relax();
        /* internal and external reset, stop after that */
        __raw_writel(M_RES2 | STOP_COUNT0 | RESET_COUNT0,
                WDTIM_MCTRL(wdt_base));