From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: [PATCH v2 6/7] i2c-designware: use usleep_range() in the busy-loop Date: Wed, 10 Apr 2013 13:36:41 +0300 Message-ID: <1365590202-1623-6-git-send-email-mika.westerberg@linux.intel.com> References: <1365590202-1623-1-git-send-email-mika.westerberg@linux.intel.com> Return-path: In-Reply-To: <1365590202-1623-1-git-send-email-mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Wolfram Sang , ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org, Jean Delvare , Andy Shevchenko , Christian Ruppert , Mika Westerberg List-Id: linux-i2c@vger.kernel.org This is not an atomic context so there is no need to use mdelay() but instead use usleep_range(). Signed-off-by: Mika Westerberg --- drivers/i2c/busses/i2c-designware-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c index 5cc4ebf..7c10c5b 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; -- 1.7.10.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937194Ab3DJKev (ORCPT ); Wed, 10 Apr 2013 06:34:51 -0400 Received: from mga11.intel.com ([192.55.52.93]:63542 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937154Ab3DJKer (ORCPT ); Wed, 10 Apr 2013 06:34:47 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,445,1363158000"; d="scan'208";a="320238862" From: Mika Westerberg To: linux-kernel@vger.kernel.org Cc: linux-i2c@vger.kernel.org, Wolfram Sang , ben-linux@fluff.org, Jean Delvare , Andy Shevchenko , Christian Ruppert , Mika Westerberg Subject: [PATCH v2 6/7] i2c-designware: use usleep_range() in the busy-loop Date: Wed, 10 Apr 2013 13:36:41 +0300 Message-Id: <1365590202-1623-6-git-send-email-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1365590202-1623-1-git-send-email-mika.westerberg@linux.intel.com> References: <1365590202-1623-1-git-send-email-mika.westerberg@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is not an atomic context so there is no need to use mdelay() but instead use usleep_range(). Signed-off-by: Mika Westerberg --- drivers/i2c/busses/i2c-designware-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c index 5cc4ebf..7c10c5b 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; -- 1.7.10.4