Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966013AbcKXPx6 (ORCPT ); Thu, 24 Nov 2016 10:53:58 -0500 Received: from mail-pg0-f68.google.com ([74.125.83.68]:33457 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965932AbcKXPxy (ORCPT ); Thu, 24 Nov 2016 10:53:54 -0500 From: Aniroop Mathur To: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Cc: aniroop.mathur@gmail.com, s.samuel@samsung.com, r.mahale@samsung.com, Aniroop Mathur Subject: [PATCH] Input: Change msleep to usleep_range for small msecs Date: Thu, 24 Nov 2016 21:33:03 +0530 Message-Id: <1480003383-1716-1-git-send-email-a.mathur@samsung.com> X-Mailer: git-send-email 2.6.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1026 Lines: 35 msleep(1~20) may not do what the caller intends, and will often sleep longer. (~20 ms actual sleep for any value given in the 1~20ms range) This is not the desired behaviour for many cases like device resume time, device suspend time, device enable time, etc. Thus, change msleep to usleep_range for precise wakeups. Signed-off-by: Aniroop Mathur --- drivers/input/misc/bma150.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c index 2124390..1fa8537 100644 --- a/drivers/input/misc/bma150.c +++ b/drivers/input/misc/bma150.c @@ -207,7 +207,7 @@ static int bma150_set_mode(struct bma150_data *bma150, u8 mode) return error; if (mode == BMA150_MODE_NORMAL) - msleep(2); + usleep_range(2000, 2100); bma150->mode = mode; return 0; @@ -222,7 +222,7 @@ static int bma150_soft_reset(struct bma150_data *bma150) if (error) return error; - msleep(2); + usleep_range(2000, 2100); return 0; } -- 2.6.2