fix(touchscreen) fixed the problem of gt9xx touch abnormality

lin

2025-03-21 36aaa54056c4f4e150f6ee0636610d9a68470a08

 longan/kernel/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c
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@@ -1087,17 +1087,19 @@
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 static int goodix_ts_resume(struct device *dev);
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 extern void gt9xx_resume_extern(void);
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 extern void gt9xx_suspend_extern(void);
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-struct goodix_ts_data *cur_ts;
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+struct goodix_ts_data *cur_ts= NULL;
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 void gt9xx_suspend_extern(void)
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 {
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 	// goodix_ts_suspend(config_info.dev);
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-	
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-	gtp_irq_disable(cur_ts);
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-	cancel_work_sync(&goodix_resume_work);
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-	flush_workqueue(goodix_resume_wq);
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-	cancel_work_sync(&cur_ts->work);
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-	flush_workqueue(goodix_wq);
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+	if (cur_ts == NULL) {return;}
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+	else {
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+		gtp_irq_disable(cur_ts);
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+		cancel_work_sync(&goodix_resume_work);
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+		flush_workqueue(goodix_resume_wq);
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+		cancel_work_sync(&cur_ts->work);
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+		flush_workqueue(goodix_wq);
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+	}
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 }
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 EXPORT_SYMBOL(gt9xx_suspend_extern);
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@@ -1105,13 +1107,15 @@
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 void gt9xx_resume_extern(void)
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 {
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 	// goodix_ts_resume(config_info.dev);
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-	printk("%s goodix_ts_resume v1\n", goodix_ts_name);
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-	__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
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-	input_set_power_enable(&(config_info.input_type), 1);
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-	msleep(10);
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-	// goodix_resume_events
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-	queue_work(goodix_resume_wq, &goodix_resume_work);//gandy
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-
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+	if (cur_ts == NULL) {return;}
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+	else {
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+		printk("%s goodix_ts_resume v1\n", goodix_ts_name);
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+		__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
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+		input_set_power_enable(&(config_info.input_type), 1);
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+		msleep(10);
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+		// goodix_resume_events
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+		queue_work(goodix_resume_wq, &goodix_resume_work);//gandy
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+	}
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 }
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 EXPORT_SYMBOL(gt9xx_resume_extern);
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@@ -1579,11 +1583,11 @@
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 		return ret;
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 	}
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 #else
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-	//ret = of_property_read_u32(np, "ctp_screen_max_x", &screen_max_x);
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-	//of_property_read_u32(np, "ctp_screen_max_y", &screen_max_y);
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-	//of_property_read_u32(np, "ctp_revert_x_flag", &revert_x_flag);
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-	//of_property_read_u32(np, "ctp_revert_y_flag", &revert_y_flag);
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-	//of_property_read_u32(np, "ctp_exchange_x_y_flag", &exchange_x_y_flag);
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+	ret = of_property_read_u32(np, "ctp_screen_max_x", &screen_max_x);
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+	of_property_read_u32(np, "ctp_screen_max_y", &screen_max_y);
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+	of_property_read_u32(np, "ctp_revert_x_flag", &revert_x_flag);
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+	of_property_read_u32(np, "ctp_revert_y_flag", &revert_y_flag);
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+	of_property_read_u32(np, "ctp_exchange_x_y_flag", &exchange_x_y_flag);
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 #endif
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 	sunxi_gpio_to_name(CTP_IRQ_NUMBER,irq_pin_name);
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 	pr_err("gt %s, line:%d irq_pin_name = %s \n",__FUNCTION__, __LINE__, irq_pin_name);