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input: Add support for no irq to ili210x driver

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Signed-off-by: eng33 <eng33@waveshare.com>
This commit is contained in:
eng33
2024-12-05 17:19:23 +08:00
committed by Dom Cobley
parent 732b79eac1
commit 057bb6fb2c
1 changed files with 52 additions and 11 deletions
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63
drivers/input/touchscreen/ili210x.c
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@@ -67,6 +67,8 @@ struct ili210x {
u8 version_proto[2];
u8 ic_mode[2];
bool stop;
struct timer_list poll_timer;
struct work_struct poll_work;
};
static int ili210x_read_reg(struct i2c_client *client,
@@ -360,6 +362,34 @@ static irqreturn_t ili210x_irq(int irq, void *irq_data)
return IRQ_HANDLED;
}
static void ili210x_poll_work(struct work_struct *work)
{
struct ili210x *priv = container_of(work, struct ili210x, poll_work);
struct i2c_client *client = priv->client;
const struct ili2xxx_chip *chip = priv->chip;
u8 touchdata[ILI210X_DATA_SIZE] = { 0 };
bool touch;
int error;
error = chip->get_touch_data(client, touchdata);
if (error) {
dev_err(&client->dev, "Unable to get touch data: %d\n", error);
return;
}
touch = ili210x_report_events(priv, touchdata);
}
static void ili210x_poll_timer_callback(struct timer_list *t)
{
struct ili210x *priv = timer_container_of(priv, t, poll_timer);
schedule_work(&priv->poll_work);
if (!priv->stop)
mod_timer(&priv->poll_timer, jiffies + msecs_to_jiffies(ILI2XXX_POLL_PERIOD));
}
static int ili251x_firmware_update_resolution(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
@@ -947,11 +977,6 @@ static int ili210x_i2c_probe(struct i2c_client *client)
return -ENODEV;
}
if (client->irq <= 0) {
dev_err(dev, "No IRQ!\n");
return -EINVAL;
}
reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(reset_gpio))
return PTR_ERR(reset_gpio);
@@ -1003,12 +1028,17 @@ static int ili210x_i2c_probe(struct i2c_client *client)
return error;
}
error = devm_request_threaded_irq(dev, client->irq, NULL, ili210x_irq,
IRQF_ONESHOT, client->name, priv);
if (error) {
dev_err(dev, "Unable to request touchscreen IRQ, err: %d\n",
error);
return error;
if (client->irq) {
error = devm_request_threaded_irq(dev, client->irq, NULL, ili210x_irq,
IRQF_ONESHOT, client->name, priv);
if (error) {
dev_err(dev, "Unable to request touchscreen IRQ, err: %d\n", error);
return error;
}
} else {
timer_setup(&priv->poll_timer, ili210x_poll_timer_callback, 0);
mod_timer(&priv->poll_timer, jiffies + msecs_to_jiffies(ILI2XXX_POLL_PERIOD));
INIT_WORK(&priv->poll_work, ili210x_poll_work);
}
error = devm_add_action_or_reset(dev, ili210x_stop, priv);
@@ -1024,6 +1054,16 @@ static int ili210x_i2c_probe(struct i2c_client *client)
return 0;
}
static void ili210x_i2c_remove(struct i2c_client *client)
{
struct ili210x *tsdata = i2c_get_clientdata(client);
if (!client->irq) {
timer_delete(&tsdata->poll_timer);
cancel_work_sync(&tsdata->poll_work);
}
}
static const struct i2c_device_id ili210x_i2c_id[] = {
{ "ili210x", (long)&ili210x_chip },
{ "ili2117", (long)&ili211x_chip },
@@ -1050,6 +1090,7 @@ static struct i2c_driver ili210x_ts_driver = {
},
.id_table = ili210x_i2c_id,
.probe = ili210x_i2c_probe,
.remove = ili210x_i2c_remove,
};
module_i2c_driver(ili210x_ts_driver);