From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-viperboard.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/i2c/busses/i2c-viperboard.c b/drivers/i2c/busses/i2c-viperboard.c
index 7533fa34d73711..47e88adf2011e1 100644
--- a/drivers/i2c/busses/i2c-viperboard.c
+++ b/drivers/i2c/busses/i2c-viperboard.c
@@ -288,10 +288,6 @@ static int vprbrd_i2c_xfer(struct i2c_adapter *i2c, struct i2c_msg *msgs,
i, pmsg->flags & I2C_M_RD ? "read" : "write",
pmsg->flags, pmsg->len, pmsg->addr);
- /* msgs longer than 2048 bytes are not supported by adapter */
- if (pmsg->len > 2048)
- return -EINVAL;
-
mutex_lock(&vb->lock);
/* directly send the message */
if (pmsg->flags & I2C_M_RD) {
@@ -358,6 +354,11 @@ static const struct i2c_algorithm vprbrd_algorithm = {
.functionality = vprbrd_i2c_func,
};
+static struct i2c_adapter_quirks vprbrd_quirks = {
+ .max_read_len = 2048,
+ .max_write_len = 2048,
+};
+
static int vprbrd_i2c_probe(struct platform_device *pdev)
{
struct vprbrd *vb = dev_get_drvdata(pdev->dev.parent);
@@ -373,6 +374,7 @@ static int vprbrd_i2c_probe(struct platform_device *pdev)
vb_i2c->i2c.owner = THIS_MODULE;
vb_i2c->i2c.class = I2C_CLASS_HWMON;
vb_i2c->i2c.algo = &vprbrd_algorithm;
+ vb_i2c->i2c.quirks = &vprbrd_quirks;
vb_i2c->i2c.algo_data = vb;
/* save the param in usb capabable memory */
vb_i2c->bus_freq_param = i2c_bus_param;
--
2.1.4
--
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