diff options
Diffstat (limited to 'drivers/input/touchscreen/ili210x.c')
| -rw-r--r-- | drivers/input/touchscreen/ili210x.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c index 4a17096e83e1..199cf3daec10 100644 --- a/drivers/input/touchscreen/ili210x.c +++ b/drivers/input/touchscreen/ili210x.c @@ -167,6 +167,36 @@ static const struct ili2xxx_chip ili211x_chip = { .resolution = 2048, }; +static bool ili212x_touchdata_to_coords(const u8 *touchdata, + unsigned int finger, + unsigned int *x, unsigned int *y) +{ + u16 val; + + val = get_unaligned_be16(touchdata + 3 + (finger * 5) + 0); + if (!(val & BIT(15))) /* Touch indication */ + return false; + + *x = val & 0x3fff; + *y = get_unaligned_be16(touchdata + 3 + (finger * 5) + 2); + + return true; +} + +static bool ili212x_check_continue_polling(const u8 *data, bool touch) +{ + return touch; +} + +static const struct ili2xxx_chip ili212x_chip = { + .read_reg = ili210x_read_reg, + .get_touch_data = ili210x_read_touch_data, + .parse_touch_data = ili212x_touchdata_to_coords, + .continue_polling = ili212x_check_continue_polling, + .max_touches = 10, + .has_calibrate_reg = true, +}; + static int ili251x_read_reg(struct i2c_client *client, u8 reg, void *buf, size_t len) { @@ -321,7 +351,7 @@ static umode_t ili210x_calibrate_visible(struct kobject *kobj, struct i2c_client *client = to_i2c_client(dev); struct ili210x *priv = i2c_get_clientdata(client); - return priv->chip->has_calibrate_reg; + return priv->chip->has_calibrate_reg ? attr->mode : 0; } static const struct attribute_group ili210x_attr_group = { @@ -447,6 +477,7 @@ static int ili210x_i2c_probe(struct i2c_client *client, static const struct i2c_device_id ili210x_i2c_id[] = { { "ili210x", (long)&ili210x_chip }, { "ili2117", (long)&ili211x_chip }, + { "ili2120", (long)&ili212x_chip }, { "ili251x", (long)&ili251x_chip }, { } }; @@ -455,6 +486,7 @@ MODULE_DEVICE_TABLE(i2c, ili210x_i2c_id); static const struct of_device_id ili210x_dt_ids[] = { { .compatible = "ilitek,ili210x", .data = &ili210x_chip }, { .compatible = "ilitek,ili2117", .data = &ili211x_chip }, + { .compatible = "ilitek,ili2120", .data = &ili212x_chip }, { .compatible = "ilitek,ili251x", .data = &ili251x_chip }, { } }; |