From 36aaa54056c4f4e150f6ee0636610d9a68470a08 Mon Sep 17 00:00:00 2001
From: lin <lin@kickpi.com>
Date: Fri, 21 Mar 2025 02:07:15 +0000
Subject: [PATCH] fix(touchscreen) fixed the problem of gt9xx touch abnormality
---
longan/kernel/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c | 42 +++++++++++++++++++++++-------------------
1 files changed, 23 insertions(+), 19 deletions(-)
diff --git a/longan/kernel/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c b/longan/kernel/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c
index 27d2068..9111b01 100755
--- a/longan/kernel/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c
+++ b/longan/kernel/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c
@@ -1087,17 +1087,19 @@
static int goodix_ts_resume(struct device *dev);
extern void gt9xx_resume_extern(void);
extern void gt9xx_suspend_extern(void);
-struct goodix_ts_data *cur_ts;
+struct goodix_ts_data *cur_ts= NULL;
void gt9xx_suspend_extern(void)
{
// goodix_ts_suspend(config_info.dev);
-
- gtp_irq_disable(cur_ts);
- cancel_work_sync(&goodix_resume_work);
- flush_workqueue(goodix_resume_wq);
- cancel_work_sync(&cur_ts->work);
- flush_workqueue(goodix_wq);
+ if (cur_ts == NULL) {return;}
+ else {
+ gtp_irq_disable(cur_ts);
+ cancel_work_sync(&goodix_resume_work);
+ flush_workqueue(goodix_resume_wq);
+ cancel_work_sync(&cur_ts->work);
+ flush_workqueue(goodix_wq);
+ }
}
EXPORT_SYMBOL(gt9xx_suspend_extern);
@@ -1105,13 +1107,15 @@
void gt9xx_resume_extern(void)
{
// goodix_ts_resume(config_info.dev);
- printk("%s goodix_ts_resume v1\n", goodix_ts_name);
- __gpio_set_value(config_info.wakeup_gpio.gpio, 1);
- input_set_power_enable(&(config_info.input_type), 1);
- msleep(10);
- // goodix_resume_events
- queue_work(goodix_resume_wq, &goodix_resume_work);//gandy
-
+ if (cur_ts == NULL) {return;}
+ else {
+ printk("%s goodix_ts_resume v1\n", goodix_ts_name);
+ __gpio_set_value(config_info.wakeup_gpio.gpio, 1);
+ input_set_power_enable(&(config_info.input_type), 1);
+ msleep(10);
+ // goodix_resume_events
+ queue_work(goodix_resume_wq, &goodix_resume_work);//gandy
+ }
}
EXPORT_SYMBOL(gt9xx_resume_extern);
@@ -1579,11 +1583,11 @@
return ret;
}
#else
- //ret = of_property_read_u32(np, "ctp_screen_max_x", &screen_max_x);
- //of_property_read_u32(np, "ctp_screen_max_y", &screen_max_y);
- //of_property_read_u32(np, "ctp_revert_x_flag", &revert_x_flag);
- //of_property_read_u32(np, "ctp_revert_y_flag", &revert_y_flag);
- //of_property_read_u32(np, "ctp_exchange_x_y_flag", &exchange_x_y_flag);
+ ret = of_property_read_u32(np, "ctp_screen_max_x", &screen_max_x);
+ of_property_read_u32(np, "ctp_screen_max_y", &screen_max_y);
+ of_property_read_u32(np, "ctp_revert_x_flag", &revert_x_flag);
+ of_property_read_u32(np, "ctp_revert_y_flag", &revert_y_flag);
+ of_property_read_u32(np, "ctp_exchange_x_y_flag", &exchange_x_y_flag);
#endif
sunxi_gpio_to_name(CTP_IRQ_NUMBER,irq_pin_name);
pr_err("gt %s, line:%d irq_pin_name = %s \n",__FUNCTION__, __LINE__, irq_pin_name);
--
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