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path: root/drivers/input/touchscreen
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Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/eeti_ts.c115
1 files changed, 58 insertions, 57 deletions
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
index 16023867b9da..74d57ef68663 100644
--- a/drivers/input/touchscreen/eeti_ts.c
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -43,7 +43,7 @@ static bool flip_y;
module_param(flip_y, bool, 0644);
MODULE_PARM_DESC(flip_y, "flip y coordinate");
-struct eeti_ts_priv {
+struct eeti_ts {
struct i2c_client *client;
struct input_dev *input;
struct work_struct work;
@@ -60,25 +60,25 @@ struct eeti_ts_priv {
#define REPORT_BIT_HAS_PRESSURE (1 << 6)
#define REPORT_RES_BITS(v) (((v) >> 1) + EETI_TS_BITDEPTH)
-static inline int eeti_ts_irq_active(struct eeti_ts_priv *priv)
+static inline int eeti_ts_irq_active(struct eeti_ts *eeti)
{
- return gpio_get_value(priv->irq_gpio) == priv->irq_active_high;
+ return gpio_get_value(eeti->irq_gpio) == eeti->irq_active_high;
}
static void eeti_ts_read(struct work_struct *work)
{
char buf[6];
unsigned int x, y, res, pressed, to = 100;
- struct eeti_ts_priv *priv =
- container_of(work, struct eeti_ts_priv, work);
+ struct eeti_ts *eeti =
+ container_of(work, struct eeti_ts, work);
- mutex_lock(&priv->mutex);
+ mutex_lock(&eeti->mutex);
- while (eeti_ts_irq_active(priv) && --to)
- i2c_master_recv(priv->client, buf, sizeof(buf));
+ while (eeti_ts_irq_active(eeti) && --to)
+ i2c_master_recv(eeti->client, buf, sizeof(buf));
if (!to) {
- dev_err(&priv->client->dev,
+ dev_err(&eeti->client->dev,
"unable to clear IRQ - line stuck?\n");
goto out;
}
@@ -103,62 +103,62 @@ static void eeti_ts_read(struct work_struct *work)
y = EETI_MAXVAL - y;
if (buf[0] & REPORT_BIT_HAS_PRESSURE)
- input_report_abs(priv->input, ABS_PRESSURE, buf[5]);
+ input_report_abs(eeti->input, ABS_PRESSURE, buf[5]);
- input_report_abs(priv->input, ABS_X, x);
- input_report_abs(priv->input, ABS_Y, y);
- input_report_key(priv->input, BTN_TOUCH, !!pressed);
- input_sync(priv->input);
+ input_report_abs(eeti->input, ABS_X, x);
+ input_report_abs(eeti->input, ABS_Y, y);
+ input_report_key(eeti->input, BTN_TOUCH, !!pressed);
+ input_sync(eeti->input);
out:
- mutex_unlock(&priv->mutex);
+ mutex_unlock(&eeti->mutex);
}
static irqreturn_t eeti_ts_isr(int irq, void *dev_id)
{
- struct eeti_ts_priv *priv = dev_id;
+ struct eeti_ts *eeti = dev_id;
/* postpone I2C transactions as we are atomic */
- schedule_work(&priv->work);
+ schedule_work(&eeti->work);
return IRQ_HANDLED;
}
-static void eeti_ts_start(struct eeti_ts_priv *priv)
+static void eeti_ts_start(struct eeti_ts *eeti)
{
- enable_irq(priv->irq);
+ enable_irq(eeti->irq);
/* Read the events once to arm the IRQ */
- eeti_ts_read(&priv->work);
+ eeti_ts_read(&eeti->work);
}
-static void eeti_ts_stop(struct eeti_ts_priv *priv)
+static void eeti_ts_stop(struct eeti_ts *eeti)
{
- disable_irq(priv->irq);
- cancel_work_sync(&priv->work);
+ disable_irq(eeti->irq);
+ cancel_work_sync(&eeti->work);
}
static int eeti_ts_open(struct input_dev *dev)
{
- struct eeti_ts_priv *priv = input_get_drvdata(dev);
+ struct eeti_ts *eeti = input_get_drvdata(dev);
- eeti_ts_start(priv);
+ eeti_ts_start(eeti);
return 0;
}
static void eeti_ts_close(struct input_dev *dev)
{
- struct eeti_ts_priv *priv = input_get_drvdata(dev);
+ struct eeti_ts *eeti = input_get_drvdata(dev);
- eeti_ts_stop(priv);
+ eeti_ts_stop(eeti);
}
static int eeti_ts_probe(struct i2c_client *client,
const struct i2c_device_id *idp)
{
struct eeti_ts_platform_data *pdata = dev_get_platdata(&client->dev);
- struct eeti_ts_priv *priv;
+ struct eeti_ts *eeti;
struct input_dev *input;
unsigned int irq_flags;
int err = -ENOMEM;
@@ -170,13 +170,14 @@ static int eeti_ts_probe(struct i2c_client *client,
* for interrupts to occur.
*/
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv) {
+ eeti = kzalloc(sizeof(*eeti), GFP_KERNEL);
+ if (!eeti) {
dev_err(&client->dev, "failed to allocate driver data\n");
return -ENOMEM;
}
- mutex_init(&priv->mutex);
+ mutex_init(&eeti->mutex);
+
input = input_allocate_device();
if (!input) {
dev_err(&client->dev, "Failed to allocate input device.\n");
@@ -196,30 +197,30 @@ static int eeti_ts_probe(struct i2c_client *client,
input->open = eeti_ts_open;
input->close = eeti_ts_close;
- priv->client = client;
- priv->input = input;
- priv->irq_gpio = pdata->irq_gpio;
- priv->irq = gpio_to_irq(pdata->irq_gpio);
+ eeti->client = client;
+ eeti->input = input;
+ eeti->irq_gpio = pdata->irq_gpio;
+ eeti->irq = gpio_to_irq(pdata->irq_gpio);
err = gpio_request_one(pdata->irq_gpio, GPIOF_IN, client->name);
if (err < 0)
goto err1;
- priv->irq_active_high = pdata->irq_active_high;
+ eeti->irq_active_high = pdata->irq_active_high;
- irq_flags = priv->irq_active_high ?
+ irq_flags = eeti->irq_active_high ?
IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
- INIT_WORK(&priv->work, eeti_ts_read);
- i2c_set_clientdata(client, priv);
- input_set_drvdata(input, priv);
+ INIT_WORK(&eeti->work, eeti_ts_read);
+ i2c_set_clientdata(client, eeti);
+ input_set_drvdata(input, eeti);
err = input_register_device(input);
if (err)
goto err2;
- err = request_irq(priv->irq, eeti_ts_isr, irq_flags,
- client->name, priv);
+ err = request_irq(eeti->irq, eeti_ts_isr, irq_flags,
+ client->name, eeti);
if (err) {
dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
goto err3;
@@ -229,7 +230,7 @@ static int eeti_ts_probe(struct i2c_client *client,
* Disable the device for now. It will be enabled once the
* input device is opened.
*/
- eeti_ts_stop(priv);
+ eeti_ts_stop(eeti);
return 0;
@@ -240,23 +241,23 @@ err2:
gpio_free(pdata->irq_gpio);
err1:
input_free_device(input);
- kfree(priv);
+ kfree(eeti);
return err;
}
static int eeti_ts_remove(struct i2c_client *client)
{
- struct eeti_ts_priv *priv = i2c_get_clientdata(client);
+ struct eeti_ts *eeti = i2c_get_clientdata(client);
- free_irq(priv->irq, priv);
+ free_irq(eeti->irq, eeti);
/*
* eeti_ts_stop() leaves IRQ disabled. We need to re-enable it
* so that device still works if we reload the driver.
*/
- enable_irq(priv->irq);
+ enable_irq(eeti->irq);
- input_unregister_device(priv->input);
- kfree(priv);
+ input_unregister_device(eeti->input);
+ kfree(eeti);
return 0;
}
@@ -264,18 +265,18 @@ static int eeti_ts_remove(struct i2c_client *client)
static int __maybe_unused eeti_ts_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
- struct eeti_ts_priv *priv = i2c_get_clientdata(client);
- struct input_dev *input_dev = priv->input;
+ struct eeti_ts *eeti = i2c_get_clientdata(client);
+ struct input_dev *input_dev = eeti->input;
mutex_lock(&input_dev->mutex);
if (input_dev->users)
- eeti_ts_stop(priv);
+ eeti_ts_stop(eeti);
mutex_unlock(&input_dev->mutex);
if (device_may_wakeup(&client->dev))
- enable_irq_wake(priv->irq);
+ enable_irq_wake(eeti->irq);
return 0;
}
@@ -283,16 +284,16 @@ static int __maybe_unused eeti_ts_suspend(struct device *dev)
static int __maybe_unused eeti_ts_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
- struct eeti_ts_priv *priv = i2c_get_clientdata(client);
- struct input_dev *input_dev = priv->input;
+ struct eeti_ts *eeti = i2c_get_clientdata(client);
+ struct input_dev *input_dev = eeti->input;
if (device_may_wakeup(&client->dev))
- disable_irq_wake(priv->irq);
+ disable_irq_wake(eeti->irq);
mutex_lock(&input_dev->mutex);
if (input_dev->users)
- eeti_ts_start(priv);
+ eeti_ts_start(eeti);
mutex_unlock(&input_dev->mutex);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 03:30:38 +0000