shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

power_supply: bq25700: support charge-dect interrupt wakeup system

Browse Source 
Change-Id: I3e826021e21caecd052f6001e3bbf73ae2732acd
Signed-off-by: Shengfei xu <xsf@rock-chips.com>
This commit is contained in:
Shengfei xu
2017-01-03 18:02:28 +08:00
committed by Huang, Tao
parent 090f2de5ac
commit 05dae6cce7
1 changed files with 23 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/power/bq25700_charger.c
View File

@@ -18,6 +18,7 @@
#include <linux/power/bq25700-charge.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/regmap.h>
@@ -30,6 +31,7 @@
#include <linux/power_supply.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/rk_keys.h>
static int dbg_enable;
module_param_named(dbg_level, dbg_enable, int, 0644);
@@ -1023,18 +1025,18 @@ static int bq25700_power_supply_init(struct bq25700_device *charger)
static irqreturn_t bq25700_irq_handler_thread(int irq, void *private)
{
struct bq25700_device *charger = private;
int ret;
struct bq25700_state state;
int irq_flag;
ret = bq25700_get_chip_state(charger, &state);
if (ret < 0)
goto handled;
if (bq25700_field_read(charger, AC_STAT)) {
irq_flag = IRQF_TRIGGER_LOW;
} else {
irq_flag = IRQF_TRIGGER_HIGH;
bq25700_field_write(charger, INPUT_CURRENT,
charger->init_data.input_current_sdp);
}
irq_set_irq_type(irq, irq_flag | IRQF_ONESHOT);
rk_send_wakeup_key();
charger->state = state;
power_supply_changed(charger->supply_charger);
handled:
return IRQ_HANDLED;
}
@@ -1637,6 +1639,7 @@ static int bq25700_probe(struct i2c_client *client,
struct bq25700_device *charger;
int ret = 0;
u32 i = 0;
int irq_flag;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
return -EIO;
@@ -1703,12 +1706,21 @@ static int bq25700_probe(struct i2c_client *client,
dev_err(dev, "No irq resource found.\n");
return client->irq;
}
if (bq25700_field_read(charger, AC_STAT))
irq_flag = IRQF_TRIGGER_LOW;
else
irq_flag = IRQF_TRIGGER_HIGH;
device_init_wakeup(dev, 1);
ret = devm_request_threaded_irq(dev, client->irq, NULL,
bq25700_irq_handler_thread,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
irq_flag | IRQF_ONESHOT,
"bq25700_irq", charger);
if (ret)
goto irq_fail;
enable_irq_wake(client->irq);
bq25700_power_supply_init(charger);
bq25700_charger = charger;