lkml.org 
[lkml]   [2017]   [Oct]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/7] replace some variables
Date
From: Masaki Ota <masaki.ota@jp.alps.com>
-Move some variables(dev_ctrl, dev_type, sen_line_num_x, sen_line_num_y, pitch_x, pitch_y, resolution, btn_info) from u1_dev structure to "u1_init()", because these variables are only used in "u1_init()" function.

Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
---
drivers/hid/hid-alps.c | 67 ++++++++++++++++++++------------------------------
1 file changed, 27 insertions(+), 40 deletions(-)

diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index 201fe175cba3..4c323b58e009 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -61,14 +61,10 @@
* @input2: pointer to the kernel input2 device
* @hdev: pointer to the struct hid_device
*
- * @dev_ctrl: device control parameter
* @dev_type: device type
- * @sen_line_num_x: number of sensor line of X
- * @sen_line_num_y: number of sensor line of Y
- * @pitch_x: sensor pitch of X
- * @pitch_y: sensor pitch of Y
- * @resolution: resolution
- * @btn_info: button information
+ * @max_fingers: total number of fingers
+ * @has_sp: boolean of sp existense
+ * @sp_btn_info: button information
* @x_active_len_mm: active area length of X (mm)
* @y_active_len_mm: active area length of Y (mm)
* @x_max: maximum x coordinate value
@@ -77,22 +73,14 @@
* @y_min: minimum y coordinate value
* @btn_cnt: number of buttons
* @sp_btn_cnt: number of stick buttons
- * @has_sp: boolean of sp existense
- * @max_fingers: total number of fingers
*/
struct u1_dev {
struct input_dev *input;
struct input_dev *input2;
struct hid_device *hdev;

- u8 dev_ctrl;
- u8 dev_type;
- u8 sen_line_num_x;
- u8 sen_line_num_y;
- u8 pitch_x;
- u8 pitch_y;
- u8 resolution;
- u8 btn_info;
+ u8 max_fingers;
+ u8 has_sp;
u8 sp_btn_info;
u32 x_active_len_mm;
u32 y_active_len_mm;
@@ -102,8 +90,6 @@ struct u1_dev {
u32 y_min;
u32 btn_cnt;
u32 sp_btn_cnt;
- u8 has_sp;
- u8 max_fingers;
};

static int u1_read_write_register(struct hid_device *hdev, u32 address,
@@ -266,78 +252,80 @@ static int alps_post_resume(struct hid_device *hdev)
static int u1_init(struct hid_device *hdev, struct u1_dev *pri_data)
{
int ret;
+ u8 tmp, dev_ctrl, sen_line_num_x, sen_line_num_y;
+ u8 pitch_x, pitch_y, resolution;

/* Device initialization */
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- &pri_data->dev_ctrl, 0, true);
+ &dev_ctrl, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret);
goto exit;
}

- pri_data->dev_ctrl &= ~U1_DISABLE_DEV;
- pri_data->dev_ctrl |= U1_TP_ABS_MODE;
+ dev_ctrl &= ~U1_DISABLE_DEV;
+ dev_ctrl |= U1_TP_ABS_MODE;
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- NULL, pri_data->dev_ctrl, false);
+ NULL, 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,
- &pri_data->sen_line_num_x, 0, true);
+ &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,
- &pri_data->sen_line_num_y, 0, true);
+ &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,
- &pri_data->pitch_x, 0, true);
+ &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,
- &pri_data->pitch_y, 0, true);
+ &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,
- &pri_data->resolution, 0, true);
+ &resolution, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret);
goto exit;
}
pri_data->x_active_len_mm =
- (pri_data->pitch_x * (pri_data->sen_line_num_x - 1)) / 10;
+ (pitch_x * (sen_line_num_x - 1)) / 10;
pri_data->y_active_len_mm =
- (pri_data->pitch_y * (pri_data->sen_line_num_y - 1)) / 10;
+ (pitch_y * (sen_line_num_y - 1)) / 10;

pri_data->x_max =
- (pri_data->resolution << 2) * (pri_data->sen_line_num_x - 1);
+ (resolution << 2) * (sen_line_num_x - 1);
pri_data->x_min = 1;
pri_data->y_max =
- (pri_data->resolution << 2) * (pri_data->sen_line_num_y - 1);
+ (resolution << 2) * (sen_line_num_y - 1);
pri_data->y_min = 1;

ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN,
- &pri_data->btn_info, 0, true);
+ &tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret);
goto exit;
}
- if ((pri_data->btn_info & 0x0F) == (pri_data->btn_info & 0xF0) >> 4) {
- pri_data->btn_cnt = (pri_data->btn_info & 0x0F);
+ if ((tmp & 0x0F) == (tmp & 0xF0) >> 4) {
+ pri_data->btn_cnt = (tmp & 0x0F);
} else {
/* Button pad */
pri_data->btn_cnt = 1;
@@ -346,16 +334,15 @@ static int u1_init(struct hid_device *hdev, struct u1_dev *pri_data)
pri_data->has_sp = 0;
/* Check StickPointer device */
ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP,
- &pri_data->dev_type, 0, true);
+ &tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret);
goto exit;
}
-
- if (pri_data->dev_type & U1_DEVTYPE_SP_SUPPORT) {
- pri_data->dev_ctrl |= U1_SP_ABS_MODE;
+ if (tmp & U1_DEVTYPE_SP_SUPPORT) {
+ dev_ctrl |= U1_SP_ABS_MODE;
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- NULL, pri_data->dev_ctrl, false);
+ NULL, dev_ctrl, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed SP mode (%d)\n", ret);
goto exit;
--
2.11.0
\
 
 \ /
  Last update: 2017-10-06 04:55    [W:0.067 / U:5.888 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site