From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Wed, 10 Apr 2013 00:36:41 +0000 (+0000)
Subject: i2c-designware: use usleep_range() in the busy-loop
X-Git-Tag: Ubuntu-5.4-5.4.0-11.14~16752^2~12
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=1451b91ffef5a2ac7df28a6d8fc270ccbee5d8ac;p=mirror_ubuntu-focal-kernel.git

i2c-designware: use usleep_range() in the busy-loop

This is not an atomic context so there is no need to use mdelay() but
instead use usleep_range().

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 5cc4ebf29b0a..7c10c5bd36dc 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -355,7 +355,7 @@ static int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev)
 			return -ETIMEDOUT;
 		}
 		timeout--;
-		mdelay(1);
+		usleep_range(1000, 1100);
 	}
 
 	return 0;