255 byte support has been tested on a npcm750 board
Signed-off-by: Matt Johnston <matt@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Tali Perry <tali.perry1@xxxxxxxxx>
Reviewed-by: Patrick Venture <venture@xxxxxxxxxx>
---
drivers/i2c/busses/i2c-npcm7xx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-npcm7xx.c b/drivers/i2c/busses/i2c-npcm7xx.c
index 2ad166355ec9..01a1e96be4ba 100644
--- a/drivers/i2c/busses/i2c-npcm7xx.c
+++ b/drivers/i2c/busses/i2c-npcm7xx.c
@@ -1399,7 +1399,7 @@ static void npcm_i2c_irq_master_handler_read(struct npcm_i2c *bus)
if (bus->read_block_use) {
/* first byte in block protocol is the size: */
data = npcm_i2c_rd_byte(bus);
- data = clamp_val(data, 1, I2C_SMBUS_BLOCK_MAX);
+ data = clamp_val(data, 1, I2C_SMBUS3_BLOCK_MAX);
bus->rd_size = data + block_extra_bytes_size;
bus->rd_buf[bus->rd_ind++] = data;
@@ -2187,6 +2187,7 @@ static u32 npcm_i2c_functionality(struct i2c_adapter *adap)
I2C_FUNC_SMBUS_EMUL |
I2C_FUNC_SMBUS_BLOCK_DATA |
I2C_FUNC_SMBUS_PEC |
+ I2C_FUNC_SMBUS3_BLOCKSIZE |
I2C_FUNC_SLAVE;
}
--
2.32.0
