From 8100091d02487ff267af0d410ceb9eefebc8ea03 Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Sat, 27 Jan 2018 00:38:35 +0800 Subject: bcma: Replace mdelay with usleep_range in bcma_pmu_resources_init After checking all possible call chains to bcma_pmu_resources_init() here, my tool finds that this function is never called in atomic context, namely never in an interrupt handler or holding a spinlock. Thus mdelay can be replaced with usleep_range to avoid busy wait. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai Acked-by: Larry Finger Signed-off-by: Kalle Valo --- drivers/bcma/driver_chipcommon_pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/bcma') diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c index f1eb4d3..f416106 100644 --- a/drivers/bcma/driver_chipcommon_pmu.c +++ b/drivers/bcma/driver_chipcommon_pmu.c @@ -203,7 +203,7 @@ static void bcma_pmu_resources_init(struct bcma_drv_cc *cc) * Add some delay; allow resources to come up and settle. * Delay is required for SoC (early init). */ - mdelay(2); + usleep_range(2000, 2500); } /* Disable to allow reading SPROM. Don't know the adventages of enabling it. */ -- cgit v1.1