From 6015482e43bbb98ab13c652c228903a316782a7e Mon Sep 17 00:00:00 2001
From: zhangzhaopeng <powell@hichs.com.cn>
Date: Fri, 27 Sep 2024 10:09:19 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E9=AB=98TP=E7=A8=B3=E5=AE=9A=E6=80=A7?=
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---
 .../drivers/input/touchscreen/cst9220/hynitron_core.c     | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lichee/linux-4.9/drivers/input/touchscreen/cst9220/hynitron_core.c b/lichee/linux-4.9/drivers/input/touchscreen/cst9220/hynitron_core.c
index b17101ef2..d910f0c3d 100755
--- a/lichee/linux-4.9/drivers/input/touchscreen/cst9220/hynitron_core.c
+++ b/lichee/linux-4.9/drivers/input/touchscreen/cst9220/hynitron_core.c
@@ -901,8 +901,12 @@ FINGER_PROCESS:
 	i2c_buf[2] = 0xAB;
 	ret = cst3xx_i2c_write(hyn_ts_data->client, i2c_buf, 3);
 	if(ret < 0) {
-		HYN_ERROR(" cst3xx hyn send read touch info ending failed.\r\n"); 
-		goto OUT_PROCESS;
+		pr_emerg(" cst3xx hyn send read touch info ending failed.\r\n"); 
+		/* don't drop the up event even if response to touch sensor fail */
+		if (buf[0] != 0)
+		{
+			goto OUT_PROCESS;
+		}
 	}
 #if (HYN_DEBUG_EN && (HYN_DEBUG_LEVEL == 2))
     hyn_show_touch_buffer(buf, cnt);