Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752172Ab1B1Ali (ORCPT ); Sun, 27 Feb 2011 19:41:38 -0500 Received: from mail-iy0-f174.google.com ([209.85.210.174]:60400 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752029Ab1B1Alh (ORCPT ); Sun, 27 Feb 2011 19:41:37 -0500 From: Benson Leung To: linux-kernel@vger.kernel.org, cbouatmailru@gmail.com Cc: rklein@nvidia.com, bleung@chromium.org Subject: [PATCH] power: bq20z75: Fix time and temp units Date: Sun, 27 Feb 2011 16:41:12 -0800 Message-Id: <1298853672-21330-1-git-send-email-bleung@chromium.org> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1934 Lines: 60 Corrected temperature and time to empty/full conversions. Temperature is in 0.1°C, time is in seconds. Signed-off-by: Benson Leung --- drivers/power/bq20z75.c | 18 ++++++++++++------ 1 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index 4141775..998123e 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -269,12 +269,15 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, { #define BASE_UNIT_CONVERSION 1000 #define BATTERY_MODE_CAP_MULT_WATT (10 * BASE_UNIT_CONVERSION) -#define TIME_UNIT_CONVERSION 600 -#define TEMP_KELVIN_TO_CELCIUS 2731 +#define TIME_UNIT_CONVERSION 60 +#define TEMP_KELVIN_TO_CELSIUS 2731 switch (psp) { case POWER_SUPPLY_PROP_ENERGY_NOW: case POWER_SUPPLY_PROP_ENERGY_FULL: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + /* bq20z75 provides energy in units of 10mWh. + * Convert to µW + */ val->intval *= BATTERY_MODE_CAP_MULT_WATT; break; @@ -288,14 +291,17 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, break; case POWER_SUPPLY_PROP_TEMP: - /* bq20z75 provides battery tempreture in 0.1°K - * so convert it to 0.1°C */ - val->intval -= TEMP_KELVIN_TO_CELCIUS; - val->intval *= 10; + /* bq20z75 provides battery temperature in 0.1K + * so convert it to 0.1°C + */ + val->intval -= TEMP_KELVIN_TO_CELSIUS; break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: + /* bq20z75 provides time to empty and time to full in minutes. + * Convert to seconds + */ val->intval *= TIME_UNIT_CONVERSION; break; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/