linux-kernel - [PATCH 1/2] Input: elan_i2c - Add new trackpoint report type 0x5F.

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Date:   Mon,  7 Dec 2020 17:07:51 +0800
From:   "jingle.wu" <jingle.wu@....com.tw>
To:     linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        dmitry.torokhov@...il.com
Cc:     phoenix@....com.tw, josh.chen@....com.tw, dave.wang@....com.tw,
        "jingle.wu" <jingle.wu@....com.tw>
Subject: [PATCH 1/2] Input: elan_i2c - Add new trackpoint report type 0x5F.

The 0x5F is new trackpoint report type of some module.

Signed-off-by: Jingle Wu <jingle.wu@....com.tw>
---
 drivers/input/mouse/elan_i2c_core.c  | 2 ++
 drivers/input/mouse/elan_i2c_smbus.c | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 61ed3f5ca219..8f0c4663167c 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -52,6 +52,7 @@
 #define ETP_REPORT_ID		0x5D
 #define ETP_REPORT_ID2		0x60	/* High precision report */
 #define ETP_TP_REPORT_ID	0x5E
+#define ETP_TP_REPORT_ID2	0x5F
 #define ETP_REPORT_ID_OFFSET	2
 #define ETP_TOUCH_INFO_OFFSET	3
 #define ETP_FINGER_DATA_OFFSET	4
@@ -1076,6 +1077,7 @@ static irqreturn_t elan_isr(int irq, void *dev_id)
 		elan_report_absolute(data, report, true);
 		break;
 	case ETP_TP_REPORT_ID:
+	case ETP_TP_REPORT_ID2:
 		elan_report_trackpoint(data, report);
 		break;
 	default:
diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c
index 1820f1cfc1dc..1226d47ec3cf 100644
--- a/drivers/input/mouse/elan_i2c_smbus.c
+++ b/drivers/input/mouse/elan_i2c_smbus.c
@@ -45,6 +45,7 @@
 #define ETP_SMBUS_CALIBRATE_QUERY	0xC5
 
 #define ETP_SMBUS_REPORT_LEN		32
+#define ETP_SMBUS_REPORT_LEN2		7
 #define ETP_SMBUS_REPORT_OFFSET		2
 #define ETP_SMBUS_HELLOPACKET_LEN	5
 #define ETP_SMBUS_IAP_PASSWORD		0x1234
@@ -497,7 +498,7 @@ static int elan_smbus_get_report(struct i2c_client *client,
 		return len;
 	}
 
-	if (len != ETP_SMBUS_REPORT_LEN) {
+	if ((len != ETP_SMBUS_REPORT_LEN) && (len != ETP_SMBUS_REPORT_LEN2))  {
 		dev_err(&client->dev,
 			"wrong report length (%d vs %d expected)\n",
 			len, ETP_SMBUS_REPORT_LEN);
-- 
2.17.1