i2c: aspeed: Allow 255 byte block transfers

255 byte transfers have been tested on an AST2500 board

Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
index 67e8b97..7395f37 100644 (file)
--- a/drivers/i2c/busses/i2c-aspeed.c
+++ b/drivers/i2c/busses/i2c-aspeed.c
@@ -533,7 +533,7 @@ static u32 aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus, u32 irq_status)
                msg->buf[bus->buf_index++] = recv_byte;
 
                if (msg->flags & I2C_M_RECV_LEN) {
-                       if (unlikely(recv_byte > I2C_SMBUS_BLOCK_MAX)) {
+                       if (unlikely(recv_byte > I2C_SMBUS_V3_BLOCK_MAX)) {
                                bus->cmd_err = -EPROTO;
                                aspeed_i2c_do_stop(bus);
                                goto out_no_complete;
@@ -718,7 +718,8 @@ static int aspeed_i2c_master_xfer(struct i2c_adapter *adap,
 
 static u32 aspeed_i2c_functionality(struct i2c_adapter *adap)
 {
-       return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_SMBUS_BLOCK_DATA;
+       return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL |
+               I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_V3_BLOCK;
 }
 
 #if IS_ENABLED(CONFIG_I2C_SLAVE)