diff options
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml | 3 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-master.c | 1 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-microchip-corei2c.c | 6 |
3 files changed, 8 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml b/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml index eddfd329c67b7..69ac5db8b9148 100644 --- a/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml @@ -26,7 +26,8 @@ properties: - const: realtek,rtl9301-i2c reg: - description: Register offset and size this I2C controller. + items: + - description: Register offset and size this I2C controller. "#address-cells": const: 1 diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 9d7d9e47564a1..cbd88ffa56101 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -363,6 +363,7 @@ static int amd_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msgs, dev->msgs = msgs; dev->msgs_num = num_msgs; + dev->msg_write_idx = 0; i2c_dw_xfer_init(dev); /* Initiate messages read/write transaction */ diff --git a/drivers/i2c/busses/i2c-microchip-corei2c.c b/drivers/i2c/busses/i2c-microchip-corei2c.c index f173bda1c98c6..c8599733633e7 100644 --- a/drivers/i2c/busses/i2c-microchip-corei2c.c +++ b/drivers/i2c/busses/i2c-microchip-corei2c.c @@ -435,6 +435,7 @@ static int mchp_corei2c_smbus_xfer(struct i2c_adapter *adap, u16 addr, unsigned u8 tx_buf[I2C_SMBUS_BLOCK_MAX + 2]; u8 rx_buf[I2C_SMBUS_BLOCK_MAX + 1]; int num_msgs = 1; + int ret; msgs[CORE_I2C_SMBUS_MSG_WR].addr = addr; msgs[CORE_I2C_SMBUS_MSG_WR].flags = 0; @@ -505,7 +506,10 @@ static int mchp_corei2c_smbus_xfer(struct i2c_adapter *adap, u16 addr, unsigned return -EOPNOTSUPP; } - mchp_corei2c_xfer(&idev->adapter, msgs, num_msgs); + ret = mchp_corei2c_xfer(&idev->adapter, msgs, num_msgs); + if (ret < 0) + return ret; + if (read_write == I2C_SMBUS_WRITE || size <= I2C_SMBUS_BYTE_DATA) return 0; |