Input: elan_i2c - do not constantly re-query pattern ID

We do not need to constantly re-query pattern ID, we can instead query it
once and then pass to methods that need it.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/mouse/elan_i2c.h

@@ -57,8 +57,9 @@ struct elan_transport_ops {
 	int (*get_baseline_data)(struct i2c_client *client,
 				 bool max_baseliune, u8 *value);
 
-	int (*get_version)(struct i2c_client *client, bool iap, u8 *version);
-	int (*get_sm_version)(struct i2c_client *client,
+	int (*get_version)(struct i2c_client *client, u8 pattern, bool iap,
+			   u8 *version);
+	int (*get_sm_version)(struct i2c_client *client, u8 pattern,
 			      u16 *ic_type, u8 *version, u8 *clickpad);
 	int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
 	int (*get_product_id)(struct i2c_client *client, u16 *id);

drivers/input/mouse/elan_i2c_core.c

@@ -236,8 +236,13 @@ static int elan_query_product(struct elan_tp_data *data)
 	if (error)
 		return error;
 
-	error = data->ops->get_sm_version(data->client, &data->ic_type,
-					  &data->sm_version, &data->clickpad);
+	error = data->ops->get_pattern(data->client, &data->pattern);
+	if (error)
+		return error;
+
+	error = data->ops->get_sm_version(data->client, data->pattern,
+					  &data->ic_type, &data->sm_version,
+					  &data->clickpad);
 	if (error)
 		return error;
 
@@ -334,7 +339,8 @@ static int elan_query_device_info(struct elan_tp_data *data)
 {
 	int error;
 
-	error = data->ops->get_version(data->client, false, &data->fw_version);
+	error = data->ops->get_version(data->client, data->pattern, false,
+				       &data->fw_version);
 	if (error)
 		return error;
 
@@ -343,7 +349,8 @@ static int elan_query_device_info(struct elan_tp_data *data)
 	if (error)
 		return error;
 
-	error = data->ops->get_version(data->client, true, &data->iap_version);
+	error = data->ops->get_version(data->client, data->pattern,
+				       true, &data->iap_version);
 	if (error)
 		return error;
 
@@ -352,10 +359,6 @@ static int elan_query_device_info(struct elan_tp_data *data)
 	if (error)
 		return error;
 
-	error = data->ops->get_pattern(data->client, &data->pattern);
-	if (error)
-		return error;
-
 	error = elan_get_fwinfo(data->ic_type, data->iap_version,
 				&data->fw_validpage_count,
 				&data->fw_signature_address,

drivers/input/mouse/elan_i2c_i2c.c

@@ -266,22 +266,15 @@ static int elan_i2c_get_pattern(struct i2c_client *client, u8 *pattern)
 }
 
 static int elan_i2c_get_version(struct i2c_client *client,
-				bool iap, u8 *version)
+				u8 pattern, bool iap, u8 *version)
 {
 	int error;
-	u8 pattern_ver;
 	u16 cmd;
 	u8 val[3];
 
-	error = elan_i2c_get_pattern(client, &pattern_ver);
-	if (error) {
-		dev_err(&client->dev, "failed to get pattern version\n");
-		return error;
-	}
-
 	if (!iap)
 		cmd = ETP_I2C_FW_VERSION_CMD;
-	else if (pattern_ver == 0)
+	else if (pattern == 0)
 		cmd = ETP_I2C_IAP_VERSION_P0_CMD;
 	else
 		cmd = ETP_I2C_IAP_VERSION_CMD;
@@ -293,28 +286,20 @@ static int elan_i2c_get_version(struct i2c_client *client,
 		return error;
 	}
 
-	if (pattern_ver >= 0x01)
+	if (pattern >= 0x01)
 		*version = iap ? val[1] : val[0];
 	else
 		*version = val[0];
 	return 0;
 }
 
-static int elan_i2c_get_sm_version(struct i2c_client *client,
-				   u16 *ic_type, u8 *version,
-				   u8 *clickpad)
+static int elan_i2c_get_sm_version(struct i2c_client *client, u8 pattern,
+				   u16 *ic_type, u8 *version, u8 *clickpad)
 {
 	int error;
-	u8 pattern_ver;
 	u8 val[3];
 
-	error = elan_i2c_get_pattern(client, &pattern_ver);
-	if (error) {
-		dev_err(&client->dev, "failed to get pattern version\n");
-		return error;
-	}
-
-	if (pattern_ver >= 0x01) {
+	if (pattern >= 0x01) {
 		error = elan_i2c_read_cmd(client, ETP_I2C_IC_TYPE_CMD, val);
 		if (error) {
 			dev_err(&client->dev, "failed to get ic type: %d\n",

drivers/input/mouse/elan_i2c_smbus.c

@@ -147,7 +147,7 @@ static int elan_smbus_get_baseline_data(struct i2c_client *client,
 }
 
 static int elan_smbus_get_version(struct i2c_client *client,
-				  bool iap, u8 *version)
+				  u8 pattern, bool iap, u8 *version)
 {
 	int error;
 	u8 val[I2C_SMBUS_BLOCK_MAX] = {0};
@@ -166,9 +166,8 @@ static int elan_smbus_get_version(struct i2c_client *client,
 	return 0;
 }
 
-static int elan_smbus_get_sm_version(struct i2c_client *client,
-				     u16 *ic_type, u8 *version,
-				     u8 *clickpad)
+static int elan_smbus_get_sm_version(struct i2c_client *client, u8 pattern,
+				     u16 *ic_type, u8 *version, u8 *clickpad)
 {
 	int error;
 	u8 val[I2C_SMBUS_BLOCK_MAX] = {0};