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input: focaltech_v2_mmi: add usb charger detection

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focaltech_v2_mmi:
Add usb charger detection function.
NO_PROP_NEEDED: <New IC for NPI>

Change-Id: Ia93898563a7247a0ab8ae7d1b1bdd83ad4dd912b
Signed-off-by: wangyq13 <wangyq13@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1824123
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Jun Weng <wengjun1@motorola.com>
Reviewed-by: Wei Deng <dengwei1@motorola.com>
Reviewed-by: Jichao Zou <zoujc@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
wangyq13 2020-12-10 11:47:39 +08:00 • committed by Yeqing Wang
commit a587eada61
4 changed files with 88 additions and 0 deletions
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5
drivers/input/touchscreen/focaltech_v2_mmi/focaltech_config.h
View file

@ -229,6 +229,11 @@
*/
#define FTS_GET_MODULE_NUM 0
/*
* Usb detect support
*/
#define FTS_USB_DETECT_EN 1
/*
* module_id: mean vendor_id generally, also maybe gpio or lcm_id...
* If means vendor_id, the FTS_MODULE_ID = PANEL_ID << 8 + VENDOR_ID

57
drivers/input/touchscreen/focaltech_v2_mmi/focaltech_core.c
View file

@ -681,11 +681,64 @@ static int fts_read_parse_touchdata(struct fts_ts_data *data)
return 0;
}
#if FTS_USB_DETECT_EN
static void fts_mcu_usb_detect_set(uint8_t usb_connected)
{
uint8_t write_data = 0;
uint8_t read_data = 0;
uint8_t retry_cnt = 0;
int ret = 0;
do{
if (usb_connected == 0x01) {
write_data= 0x01;
ret = fts_write_reg(FTS_REG_CHARGER_MODE_EN, write_data);
if (ret < 0)
FTS_ERROR("set register USB IN fail, ret=%d", ret);
FTS_INFO("%s: USB detect status IN!\n", __func__);
} else {
write_data= 0x00;
ret = fts_write_reg(FTS_REG_CHARGER_MODE_EN, write_data);
if (ret < 0)
FTS_ERROR("set register USB OUT fail, ret=%d", ret);
FTS_INFO("%s: USB detect status OUT!\n", __func__);
}
ret = fts_read_reg(FTS_REG_CHARGER_MODE_EN, &read_data);
if (ret < 0)
FTS_ERROR("read 8b register fail, ret=%d", ret);
retry_cnt++;
}while((write_data != read_data) && retry_cnt < FTS_REG_RETRY_TIMES);
}
void fts_cable_detect_func(bool force_renew)
{
struct fts_ts_data *ts_data = fts_data;
uint8_t connect_status = 0;
connect_status = ts_data->usb_detect_flag;
if ((connect_status != ts_data->usb_connected) || force_renew) {
if (connect_status) {
ts_data->usb_connected = 0x01;
} else {
ts_data->usb_connected = 0x00;
}
fts_mcu_usb_detect_set(ts_data->usb_connected);
FTS_INFO("%s: Cable status change: 0x%2.2X\n", __func__, ts_data->usb_connected);
}
}
#endif
static void fts_irq_read_report(void)
{
int ret = 0;
struct fts_ts_data *ts_data = fts_data;
#if FTS_USB_DETECT_EN
fts_cable_detect_func(false);
#endif
#if FTS_ESDCHECK_EN
fts_esdcheck_set_intr(1);
#endif
@ -1813,6 +1866,10 @@ static int fts_ts_resume(struct device *dev)
}
ts_data->suspended = false;
#if FTS_USB_DETECT_EN
fts_cable_detect_func(true);
#endif
FTS_FUNC_EXIT();
return 0;
}

11
drivers/input/touchscreen/focaltech_v2_mmi/focaltech_core.h
View file

@ -65,6 +65,9 @@
#if defined(CONFIG_INPUT_TOUCHSCREEN_MMI)
#include <linux/touchscreen_mmi.h>
#endif
#ifdef FTS_USB_DETECT_EN
#include <linux/power_supply.h>
#endif
/*****************************************************************************
* Private constant and macro definitions using #define
@ -103,6 +106,9 @@
#define FTX_MAX_COMPATIBLE_TYPE 4
#define FTX_MAX_COMMMAND_LENGTH 16
#ifdef FTS_USB_DETECT_EN
#define FTS_REG_RETRY_TIMES 5
#endif
/*****************************************************************************
@ -209,6 +215,11 @@ struct fts_ts_data {
struct early_suspend early_suspend;
#endif
#if FTS_USB_DETECT_EN
bool usb_detect_flag;
uint8_t usb_connected;
#endif
#if defined(CONFIG_INPUT_TOUCHSCREEN_MMI)
struct ts_mmi_class_methods *imports;
#endif

15
drivers/input/touchscreen/focaltech_v2_mmi/focaltech_ts_mmi.c
View file

@ -191,6 +191,18 @@ static int fts_mmi_firmware_update(struct device *dev, char *fwname)
return 0;
}
#if FTS_USB_DETECT_EN
static int fts_mmi_charger_mode(struct device *dev, int mode)
{
struct fts_ts_data *ts_data;
GET_TS_DATA(dev);
ts_data->usb_detect_flag = !!mode;
return 0;
}
#endif
static int fts_mmi_panel_state(struct device *dev,
enum ts_mmi_pm_mode from, enum ts_mmi_pm_mode to)
{
@ -339,6 +351,9 @@ static struct ts_mmi_methods fts_mmi_methods = {
.drv_irq = fts_mmi_methods_drv_irq,
#if FTS_POWER_SOURCE_CUST_EN
.power = fts_mmi_methods_power,
#endif
#if FTS_USB_DETECT_EN
.charger_mode = fts_mmi_charger_mode,
#endif
/* Firmware */
.firmware_update = fts_mmi_firmware_update,