TPM_DATA_FIFO_W
rc = i2c_nuvoton_write_buf(client, TPM_DATA_FIFO_W,
rc = i2c_nuvoton_write_buf(client, TPM_DATA_FIFO_W, 1,
rc = i2c_nuvoton_read_buf(client, TPM_DATA_FIFO_W, 4,
TPM_DATA_FIFO_W,