diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-qup.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-qup.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c index 4dad23bdffbe..fdcbdab808e9 100644 --- a/drivers/i2c/busses/i2c-qup.c +++ b/drivers/i2c/busses/i2c-qup.c @@ -412,17 +412,6 @@ static int qup_i2c_read_one(struct qup_i2c_dev *qup, struct i2c_msg *msg) unsigned long left; int ret; - /* - * The QUP block will issue a NACK and STOP on the bus when reaching - * the end of the read, the length of the read is specified as one byte - * which limits the possible read to 256 (QUP_READ_LIMIT) bytes. - */ - if (msg->len > QUP_READ_LIMIT) { - dev_err(qup->dev, "HW not capable of reads over %d bytes\n", - QUP_READ_LIMIT); - return -EINVAL; - } - qup->msg = msg; qup->pos = 0; @@ -534,6 +523,15 @@ static const struct i2c_algorithm qup_i2c_algo = { .functionality = qup_i2c_func, }; +/* + * The QUP block will issue a NACK and STOP on the bus when reaching + * the end of the read, the length of the read is specified as one byte + * which limits the possible read to 256 (QUP_READ_LIMIT) bytes. + */ +static struct i2c_adapter_quirks qup_i2c_quirks = { + .max_read_len = QUP_READ_LIMIT, +}; + static void qup_i2c_enable_clocks(struct qup_i2c_dev *qup) { clk_prepare_enable(qup->clk); @@ -670,6 +668,7 @@ static int qup_i2c_probe(struct platform_device *pdev) i2c_set_adapdata(&qup->adap, qup); qup->adap.algo = &qup_i2c_algo; + qup->adap.quirks = &qup_i2c_quirks; qup->adap.dev.parent = qup->dev; qup->adap.dev.of_node = pdev->dev.of_node; strlcpy(qup->adap.name, "QUP I2C adapter", sizeof(qup->adap.name)); |