From 6ad4e5928402d962b28f323777a4e513bc194311 Mon Sep 17 00:00:00 2001 From: Wangqiang Guo Date: Fri, 13 Jan 2023 09:40:02 +0000 Subject: [PATCH] input: touchscreen: gsl3673_800x1280: change input io(sda/int) voltage 1.8v. Change-Id: Ie39dc83ab67bfbccaf01bb2ebc5c0fe27a32d09c Signed-off-by: Wangqiang Guo --- drivers/input/touchscreen/gsl3673_800x1280.c | 55 +++++++++++++++++--- 1 file changed, 47 insertions(+), 8 deletions(-) diff --git a/drivers/input/touchscreen/gsl3673_800x1280.c b/drivers/input/touchscreen/gsl3673_800x1280.c index b2572f73ed40..a279b26e5f7d 100644 --- a/drivers/input/touchscreen/gsl3673_800x1280.c +++ b/drivers/input/touchscreen/gsl3673_800x1280.c @@ -28,6 +28,7 @@ #include "tp_suspend.h" #include #define GSL_DEBUG 0 +#define GSL9XX_VDDIO_1800 #define TP2680A_ID 0x88 #define TP2680B_ID 0x82 @@ -207,6 +208,7 @@ struct gsl_ts { struct tp_device tp; struct work_struct download_fw_work; struct work_struct resume_work; + struct delayed_work delayed_work_init; }; #if GSL_DEBUG @@ -401,6 +403,29 @@ static int test_i2c(struct i2c_client *client) return rc; } +static void gsl_io_control(struct i2c_client *client) +{ +#ifdef GSL9XX_VDDIO_1800 + u8 buf[4] = {0}; + int i; + + for (i = 0; i < 5; i++) { + buf[0] = 0; + buf[1] = 0; + buf[2] = 0xfe; + buf[3] = 0x1; + gsl_ts_write(client, 0xf0, buf, 4); + buf[0] = 0x5; + buf[1] = 0; + buf[2] = 0; + buf[3] = 0x80; + gsl_ts_write(client, 0x78, buf, 4); + usleep_range(5*1000, 5*1100); + } + usleep_range(50*1000, 50*1100); +#endif +} + static void startup_chip(struct i2c_client *client) { u8 tmp = 0x00; @@ -410,6 +435,7 @@ static void startup_chip(struct i2c_client *client) #endif gsl_ts_write(client, 0xe0, &tmp, 1); mdelay(5); + gsl_io_control(client); } static void reset_chip(struct i2c_client *client) @@ -462,6 +488,20 @@ static int init_chip(struct i2c_client *client) return 0; } +static void gsl_delayed_work_init(struct work_struct *work) +{ + struct delayed_work *dwork = to_delayed_work(work); + struct gsl_ts *gsl3673_ts = container_of(dwork, struct gsl_ts, + delayed_work_init); + int rc; + + rc = init_chip(gsl3673_ts->client); + if (rc < 0) { + dev_err(&gsl3673_ts->client->dev, "gsl_probe: init_chip failed\n"); + cancel_work_sync(&gsl3673_ts->download_fw_work); + } +} + static int check_mem_data(struct i2c_client *client) { u8 read_buf[4] = {0}; @@ -1159,20 +1199,19 @@ static int gsl_ts_probe(struct i2c_client *client, #endif INIT_WORK(&ts->download_fw_work, gsl_download_fw_work); INIT_WORK(&ts->resume_work, gsl_resume_work); + INIT_DELAYED_WORK(&ts->delayed_work_init, gsl_delayed_work_init); - rc = init_chip(ts->client); - if (rc < 0) { - dev_err(&client->dev, "gsl_probe: init_chip failed\n"); - goto error_init_chip_fail; - } spin_lock_init(&ts->irq_lock); client->irq = gpio_to_irq(ts->irq); rc = devm_request_irq(&client->dev, client->irq, gsl_ts_irq, IRQF_TRIGGER_RISING, client->name, ts); if (rc < 0) { dev_err(&client->dev, "gsl_probe: request irq failed\n"); - return rc; + goto error_mutex_destroy; } + + schedule_delayed_work(&ts->delayed_work_init, + msecs_to_jiffies(800)); #ifdef GSL_MONITOR INIT_DELAYED_WORK(&gsl_monitor_work, gsl_monitor_worker); gsl_monitor_workqueue = create_singlethread_workqueue @@ -1184,8 +1223,6 @@ static int gsl_ts_probe(struct i2c_client *client, gsl_proc_flag = 0; #endif return 0; -error_init_chip_fail: - cancel_work_sync(&ts->download_fw_work); error_mutex_destroy: tp_unregister_fb(&ts->tp); return rc; @@ -1199,9 +1236,11 @@ static int gsl_ts_remove(struct i2c_client *client) cancel_delayed_work_sync(&gsl_monitor_work); destroy_workqueue(gsl_monitor_workqueue); #endif + tp_unregister_fb(&ts->tp); device_init_wakeup(&client->dev, 0); cancel_work_sync(&ts->work); destroy_workqueue(ts->wq); + cancel_delayed_work_sync(&ts->delayed_work_init); cancel_work_sync(&ts->download_fw_work); return 0; }