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input: ilitek_0flash_mmi: add usb charger detection

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ilitek_0flash_mmi:
Add usb charger detection function.
Enabled by kernel dtsi.
NO_PROP_NEEDED: <New IC for NPI>

Change-Id: I2c8349444032e28badee766236adaefb35f04b85
Signed-off-by: wangyq13 <wangyq13@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1720309
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Jun Weng <wengjun1@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
wangyq13 2020-08-12 18:18:20 +08:00 • committed by Yeqing Wang
commit 853418d845
3 changed files with 115 additions and 0 deletions
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7
drivers/input/touchscreen/ilitek_0flash_mmi/ilitek.c
View file

@ -519,6 +519,8 @@ int ili_fw_upgrade_handler(void *data)
}
atomic_set(&ilits->fw_stat, END);
if(ilits->charger_detection_enable && ilits->boot && (ilits->charger_notify_wq != NULL))
queue_work(ilits->charger_notify_wq, &ilits->charger_notify_work);
return ret;
}
@ -1035,6 +1037,11 @@ void ili_dev_remove(void)
if (ilits->ws)
wakeup_source_unregister(ilits->ws);
if (ilits->charger_notif.notifier_call)
power_supply_unreg_notifier(&ilits->charger_notif);
if (ilits->charger_notify_wq)
destroy_workqueue(ilits->charger_notify_wq);
kfree(ilits->tr_buf);
kfree(ilits->gcoord);
ili_interface_dev_exit(ilits);

6
drivers/input/touchscreen/ilitek_0flash_mmi/ilitek.h
View file

@ -778,6 +778,11 @@ struct ilitek_ts_data {
struct regulator *vdd;
struct regulator *vcc;
struct notifier_block charger_notif;
struct workqueue_struct *charger_notify_wq;
struct work_struct charger_notify_work;
int usb_plug_status;
#ifdef CONFIG_FB
struct notifier_block notifier_fb;
#else
@ -826,6 +831,7 @@ struct ilitek_ts_data {
int irq_num;
int irq_gpio;
int irq_tirgger_type;
bool charger_detection_enable;
int tp_rst;
int tp_int;
int wait_int_timeout;

102
drivers/input/touchscreen/ilitek_0flash_mmi/ilitek_qcom.c
View file

@ -807,6 +807,14 @@ static int ilitek_plat_gpio_register(void)
ilits->report_gesture_key = 0;
}
#endif
ilits->charger_detection_enable = of_property_read_bool(dev_node, "ilitek,usb_charger");
if (!ilits->charger_detection_enable) {
ILI_ERR("error reading ilitek,usb_charger. ilits->charger_detection_enable = %d\n",
ilits->charger_detection_enable);
} else {
ILI_INFO("ilitek,usb_charger = %d\n", ilits->charger_detection_enable);
}
ilits->tp_int = of_get_named_gpio_flags(dev_node, DTS_INT_GPIO, 0, &flag);
ilits->tp_rst = of_get_named_gpio_flags(dev_node, DTS_RESET_GPIO, 0, &flag);
@ -850,6 +858,93 @@ out:
return ret;
}
static int ilitek_charger_notifier_callback(struct notifier_block *nb,
unsigned long val, void *v)
{
int ret = 0;
struct power_supply *psy = NULL;
union power_supply_propval prop;
if(ilits->fw_update_stat != FW_UPDATE_PASS)
return 0;
psy= power_supply_get_by_name("usb");
if (!psy) {
ILI_ERR("Couldn't get usbpsy\n");
return -EINVAL;
}
if (!strcmp(psy->desc->name, "usb")) {
if (psy && val == POWER_SUPPLY_PROP_STATUS) {
ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT, &prop);
if (ret < 0) {
ILI_ERR("Couldn't get POWER_SUPPLY_PROP_ONLINE rc=%d\n", ret);
return ret;
} else {
if(prop.intval != ilits->usb_plug_status) {
ILI_INFO("usb_plug_status =%d\n", prop.intval);
ilits->usb_plug_status = prop.intval;
if(ilits->charger_detection_enable && !ilits->tp_suspend &&
(ilits->charger_notify_wq != NULL))
queue_work(ilits->charger_notify_wq, &ilits->charger_notify_work);
}
}
}
}
return 0;
}
static void ilitek_charger_notify_work(struct work_struct *work)
{
int ret = 0;
if (NULL == work) {
ILI_ERR("%s: parameter work are null!\n", __func__);
return;
}
ILI_INFO("enter ilitek_charger_notify_work\n");
mutex_lock(&ilits->touch_mutex);
ret = ili_ic_func_ctrl("plug", !ilits->usb_plug_status);// plug in
if(ret<0) {
ILI_ERR("Write plug in failed\n");
}
mutex_unlock(&ilits->touch_mutex);
}
void ilitek_plat_charger_init(void)
{
int ret = 0;
struct power_supply *psy = NULL;
union power_supply_propval prop;
ilits->charger_notify_wq = create_singlethread_workqueue("ili_charger_wq");
if (!ilits->charger_notify_wq) {
ILI_ERR("allocate charger_notify_wq failed\n");
return;
}
INIT_WORK(&ilits->charger_notify_work, ilitek_charger_notify_work);
ilits->charger_notif.notifier_call = ilitek_charger_notifier_callback;
ret = power_supply_reg_notifier(&ilits->charger_notif);
if (ret < 0)
ILI_ERR("power_supply_reg_notifier failed\n");
/* if power supply supplier registered brfore TP
* ps_notify_callback will not receive PSY_EVENT_PROP_ADDED
* event, and will cause miss to set TP into charger state.
* So check PS state in probe.
*/
psy = power_supply_get_by_name("usb");
if (psy) {
ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_PRESENT, &prop);
if (ret < 0) {
ILI_ERR("Couldn't get POWER_SUPPLY_PROP_ONLINE rc=%d\n", ret);
} else {
ilits->usb_plug_status = prop.intval;
ILI_INFO("boot check usb_plug_status = %d\n", prop.intval);
}
}
}
static int ilitek_plat_probe(void)
{
#ifdef ILI_SENSOR_EN
@ -864,12 +959,19 @@ static int ilitek_plat_probe(void)
if (ilitek_plat_gpio_register() < 0)
ILI_ERR("Register gpio failed\n");
if (ilits->charger_detection_enable)
ilitek_plat_charger_init();
if (ili_tddi_init() < 0) {
ILI_ERR("ILITEK Driver probe failed\n");
if(gpio_is_valid(ilits->tp_int))
gpio_free(ilits->tp_int);
if(gpio_is_valid(ilits->tp_rst))
gpio_free(ilits->tp_rst);
if (ilits->charger_notif.notifier_call)
power_supply_unreg_notifier(&ilits->charger_notif);
if (ilits->charger_notify_wq)
destroy_workqueue(ilits->charger_notify_wq);
return -ENODEV;
}