From 0ec0c5864365f3f222e1652aca98cfbd86bae890 Mon Sep 17 00:00:00 2001 From: Moritz Fischer Date: Mon, 16 Jan 2017 09:50:45 -0800 Subject: [PATCH] i2c: i2c-cdns: Reorder timeout loop for interrupt waiting Reorder the timeout loop such that we first check if the condition is already true, and then call udelay() so if the condition is already true, break early. Reviewed-by: Michal Simek Signed-off-by: Moritz Fischer Cc: Heiko Schocher Cc: Michal Simek Cc: u-boot@lists.denx.de --- drivers/i2c/i2c-cdns.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c index c1d6427..1c9fda8 100644 --- a/drivers/i2c/i2c-cdns.c +++ b/drivers/i2c/i2c-cdns.c @@ -130,10 +130,10 @@ static u32 cdns_i2c_wait(struct cdns_i2c_regs *cdns_i2c, u32 mask) int timeout, int_status; for (timeout = 0; timeout < 100; timeout++) { - udelay(100); int_status = readl(&cdns_i2c->interrupt_status); if (int_status & mask) break; + udelay(100); } /* Clear interrupt status flags */ -- 2.7.4