mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 11:20:49 +07:00
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>
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
|
|
* Gas Gauge driver for TI's BQ20Z75
|
|
*
|
|
* Copyright (c) 2010, NVIDIA Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __LINUX_POWER_BQ20Z75_H_
|
|
#define __LINUX_POWER_BQ20Z75_H_
|
|
|
|
#include <linux/power_supply.h>
|
|
#include <linux/types.h>
|
|
|
|
/**
|
|
* struct bq20z75_platform_data - platform data for bq20z75 devices
|
|
* @battery_detect: GPIO which is used to detect battery presence
|
|
* @battery_detect_present: gpio state when battery is present (0 / 1)
|
|
* @i2c_retry_count: # of times to retry on i2c IO failure
|
|
* @poll_retry_count: # of times to retry looking for new status after
|
|
* external change notification
|
|
*/
|
|
struct bq20z75_platform_data {
|
|
int battery_detect;
|
|
int battery_detect_present;
|
|
int i2c_retry_count;
|
|
int poll_retry_count;
|
|
};
|
|
|
|
#endif
|