58ddafae2d
Adding support for external power change notification. One problem found is that there is a lag time before the sensor will return a new status. To ensure that we only fire off the power_supply_changed event when the status returned from the sensor is actually different, we delay sending the the notification, and instead poll on it looking for a change. The amount of time to poll is configurable via platform data. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/*
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* Gas Gauge driver for TI's BQ20Z75
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*
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* Copyright (c) 2010, NVIDIA Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __LINUX_POWER_BQ20Z75_H_
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#define __LINUX_POWER_BQ20Z75_H_
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#include <linux/power_supply.h>
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#include <linux/types.h>
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/**
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* struct bq20z75_platform_data - platform data for bq20z75 devices
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* @battery_detect: GPIO which is used to detect battery presence
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* @battery_detect_present: gpio state when battery is present (0 / 1)
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* @i2c_retry_count: # of times to retry on i2c IO failure
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* @poll_retry_count: # of times to retry looking for new status after
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* external change notification
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*/
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struct bq20z75_platform_data {
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int battery_detect;
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int battery_detect_present;
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int i2c_retry_count;
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int poll_retry_count;
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};
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#endif
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