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[PATCH 1/7] Minor changes in hid-alps.c for support new Alps device(Delete unnecessary structure)

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From: Masaki Ota <masaki.ota@jp.alps.com>
-To support Alps T4 device, clean up the source code
-Delete unnecessary structure

Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
---
 drivers/hid/hid-alps.c | 69 +++++++++++++++++++++++++-------------------------
 1 file changed, 34 insertions(+), 35 deletions(-)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ed9c0ea5b026..519bfcf9eaf0 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -259,7 +259,6 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 {
 	struct u1_dev *data = hid_get_drvdata(hdev);
 	struct input_dev *input = hi->input, *input2;
-	struct u1_dev devInfo;
 	int ret;
 	int res_x, res_y, i;
 
@@ -275,58 +274,58 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 
 	/* Device initialization */
 	ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
-			&devInfo.dev_ctrl, 0, true);
+			&data->dev_ctrl, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret);
 		goto exit;
 	}
 
-	devInfo.dev_ctrl &= ~U1_DISABLE_DEV;
-	devInfo.dev_ctrl |= U1_TP_ABS_MODE;
+	data->dev_ctrl &= ~U1_DISABLE_DEV;
+	data->dev_ctrl |= U1_TP_ABS_MODE;
 	ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
-			NULL, devInfo.dev_ctrl, false);
+			NULL, data->dev_ctrl, false);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret);
 		goto exit;
 	}
 
 	ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X,
-			&devInfo.sen_line_num_x, 0, true);
+			&data->sen_line_num_x, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret);
 		goto exit;
 	}
 
 	ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y,
-			&devInfo.sen_line_num_y, 0, true);
+			&data->sen_line_num_y, 0, true);
 		if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret);
 		goto exit;
 	}
 
 	ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X,
-			&devInfo.pitch_x, 0, true);
+			&data->pitch_x, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret);
 		goto exit;
 	}
 
 	ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y,
-			&devInfo.pitch_y, 0, true);
+			&data->pitch_y, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret);
 		goto exit;
 	}
 
 	ret = u1_read_write_register(hdev, ADDRESS_U1_RESO_DWN_ABS,
-		&devInfo.resolution, 0, true);
+		&data->resolution, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret);
 		goto exit;
 	}
 
 	ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN,
-			&devInfo.btn_info, 0, true);
+			&data->btn_info, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret);
 		goto exit;
@@ -334,29 +333,29 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 
 	/* Check StickPointer device */
 	ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP,
-			&devInfo.dev_type, 0, true);
+			&data->dev_type, 0, true);
 	if (ret < 0) {
 		dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret);
 		goto exit;
 	}
 
-	devInfo.x_active_len_mm =
-		(devInfo.pitch_x * (devInfo.sen_line_num_x - 1)) / 10;
-	devInfo.y_active_len_mm =
-		(devInfo.pitch_y * (devInfo.sen_line_num_y - 1)) / 10;
+	data->x_active_len_mm =
+		(data->pitch_x * (data->sen_line_num_x - 1)) / 10;
+	data->y_active_len_mm =
+		(data->pitch_y * (data->sen_line_num_y - 1)) / 10;
 
-	devInfo.x_max =
-		(devInfo.resolution << 2) * (devInfo.sen_line_num_x - 1);
-	devInfo.y_max =
-		(devInfo.resolution << 2) * (devInfo.sen_line_num_y - 1);
+	data->x_max =
+		(data->resolution << 2) * (data->sen_line_num_x - 1);
+	data->y_max =
+		(data->resolution << 2) * (data->sen_line_num_y - 1);
 
 	__set_bit(EV_ABS, input->evbit);
-	input_set_abs_params(input, ABS_MT_POSITION_X, 1, devInfo.x_max, 0, 0);
-	input_set_abs_params(input, ABS_MT_POSITION_Y, 1, devInfo.y_max, 0, 0);
+	input_set_abs_params(input, ABS_MT_POSITION_X, 1, data->x_max, 0, 0);
+	input_set_abs_params(input, ABS_MT_POSITION_Y, 1, data->y_max, 0, 0);
 
-	if (devInfo.x_active_len_mm && devInfo.y_active_len_mm) {
-		res_x = (devInfo.x_max - 1) / devInfo.x_active_len_mm;
-		res_y = (devInfo.y_max - 1) / devInfo.y_active_len_mm;
+	if (data->x_active_len_mm && data->y_active_len_mm) {
+		res_x = (data->x_max - 1) / data->x_active_len_mm;
+		res_y = (data->y_max - 1) / data->y_active_len_mm;
 
 		input_abs_set_res(input, ABS_MT_POSITION_X, res_x);
 		input_abs_set_res(input, ABS_MT_POSITION_Y, res_y);
@@ -367,20 +366,20 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 	input_mt_init_slots(input, MAX_TOUCHES, INPUT_MT_POINTER);
 
 	__set_bit(EV_KEY, input->evbit);
-	if ((devInfo.btn_info & 0x0F) == (devInfo.btn_info & 0xF0) >> 4) {
-		devInfo.btn_cnt = (devInfo.btn_info & 0x0F);
+	if ((data->btn_info & 0x0F) == (data->btn_info & 0xF0) >> 4) {
+		data->btn_cnt = (data->btn_info & 0x0F);
 	} else {
 		/* Button pad */
-		devInfo.btn_cnt = 1;
+		data->btn_cnt = 1;
 		__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
 	}
 
-	for (i = 0; i < devInfo.btn_cnt; i++)
+	for (i = 0; i < data->btn_cnt; i++)
 		__set_bit(BTN_LEFT + i, input->keybit);
 
 
 	/* Stick device initialization */
-	if (devInfo.dev_type & U1_DEVTYPE_SP_SUPPORT) {
+	if (data->dev_type & U1_DEVTYPE_SP_SUPPORT) {
 
 		input2 = input_allocate_device();
 		if (!input2) {
@@ -390,9 +389,9 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 
 		data->input2 = input2;
 
-		devInfo.dev_ctrl |= U1_SP_ABS_MODE;
+		data->dev_ctrl |= U1_SP_ABS_MODE;
 		ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
-			NULL, devInfo.dev_ctrl, false);
+			NULL, data->dev_ctrl, false);
 		if (ret < 0) {
 			dev_err(&hdev->dev, "failed SP mode (%d)\n", ret);
 			input_free_device(input2);
@@ -400,7 +399,7 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 		}
 
 		ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN,
-			&devInfo.sp_btn_info, 0, true);
+			&data->sp_btn_info, 0, true);
 		if (ret < 0) {
 			dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret);
 			input_free_device(input2);
@@ -416,8 +415,8 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
 		input2->dev.parent = input->dev.parent;
 
 		__set_bit(EV_KEY, input2->evbit);
-		devInfo.sp_btn_cnt = (devInfo.sp_btn_info & 0x0F);
-		for (i = 0; i < devInfo.sp_btn_cnt; i++)
+		data->sp_btn_cnt = (data->sp_btn_info & 0x0F);
+		for (i = 0; i < data->sp_btn_cnt; i++)
 			__set_bit(BTN_LEFT + i, input2->keybit);
 
 		__set_bit(EV_REL, input2->evbit);
-- 
2.11.0

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[PATCH 1/7] Minor changes in hid-alps.c for support new Alps device(Delete unnecessary structure) Masaki Ota <012nexus@gmail.com> - 2017-09-12 05:00 +0200

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