From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753900AbbCJR2a (ORCPT ); Tue, 10 Mar 2015 13:28:30 -0400 Received: from mail-we0-f179.google.com ([74.125.82.179]:33715 "EHLO mail-we0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752904AbbCJR1w (ORCPT ); Tue, 10 Mar 2015 13:27:52 -0400 From: Bartosz Golaszewski To: LKML Cc: Guenter Roeck , lm-sensors , Andrew Morton , Steven Rostedt , Bartosz Golaszewski Subject: [PATCH v2 2/4] hwmon: (ina2xx) replace ina226_avg_bits() with find_closest() Date: Tue, 10 Mar 2015 18:27:20 +0100 Message-Id: <1426008442-26236-3-git-send-email-bgolaszewski@baylibre.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1426008442-26236-1-git-send-email-bgolaszewski@baylibre.com> References: <1426008442-26236-1-git-send-email-bgolaszewski@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use find_closest() to locate the closest average in ina226_avg_tab. Signed-off-by: Bartosz Golaszewski --- drivers/hwmon/ina2xx.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index d1542b7..fc7f023 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -141,19 +141,6 @@ static const struct ina2xx_config ina2xx_config[] = { */ static const int ina226_avg_tab[] = { 1, 4, 16, 64, 128, 256, 512, 1024 }; -static int ina226_avg_bits(int avg) -{ - int i; - - /* Get the closest average from the tab. */ - for (i = 0; i < ARRAY_SIZE(ina226_avg_tab) - 1; i++) { - if (avg <= (ina226_avg_tab[i] + ina226_avg_tab[i + 1]) / 2) - break; - } - - return i; /* Return 0b0111 for values greater than 1024. */ -} - static int ina226_reg_to_interval(u16 config) { int avg = ina226_avg_tab[INA226_READ_AVG(config)]; @@ -171,7 +158,8 @@ static u16 ina226_interval_to_reg(int interval, u16 config) avg = DIV_ROUND_CLOSEST(interval * 1000, INA226_TOTAL_CONV_TIME_DEFAULT); - avg_bits = ina226_avg_bits(avg); + avg_bits = find_closest(avg, ina226_avg_tab, + ARRAY_SIZE(ina226_avg_tab)); return (config & ~INA226_AVG_RD_MASK) | INA226_SHIFT_AVG(avg_bits); } -- 2.1.4