diff options
| -rw-r--r-- | drivers/input/touchscreen/ili210x.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c index 867c13d3cb17..e1551cdc6e1a 100644 --- a/drivers/input/touchscreen/ili210x.c +++ b/drivers/input/touchscreen/ili210x.c @@ -224,15 +224,17 @@ static const struct ili2xxx_chip ili212x_chip = { .has_calibrate_reg = true, }; -static int ili251x_read_reg(struct i2c_client *client, - u8 reg, void *buf, size_t len) +static int ili251x_read_reg_common(struct i2c_client *client, + u8 reg, void *buf, size_t len, + unsigned int delay) { int error; int ret; ret = i2c_master_send(client, ®, 1); if (ret == 1) { - usleep_range(5000, 5500); + if (delay) + usleep_range(delay, delay + 500); ret = i2c_master_recv(client, buf, len); if (ret == len) @@ -244,12 +246,18 @@ static int ili251x_read_reg(struct i2c_client *client, return ret; } +static int ili251x_read_reg(struct i2c_client *client, + u8 reg, void *buf, size_t len) +{ + return ili251x_read_reg_common(client, reg, buf, len, 5000); +} + static int ili251x_read_touch_data(struct i2c_client *client, u8 *data) { int error; - error = ili251x_read_reg(client, REG_TOUCHDATA, - data, ILI251X_DATA_SIZE1); + error = ili251x_read_reg_common(client, REG_TOUCHDATA, + data, ILI251X_DATA_SIZE1, 0); if (!error && data[0] == 2) { error = i2c_master_recv(client, data + ILI251X_DATA_SIZE1, ILI251X_DATA_SIZE2); |