MSM_UART_CR_TX_ENABLE
msm_write(port, MSM_UART_CR_TX_ENABLE | MSM_UART_CR_RX_ENABLE, MSM_UART_CR);
msm_write(&device->port, MSM_UART_CR_TX_ENABLE, MSM_UART_CR);
msm_write(port, MSM_UART_CR_TX_ENABLE, MSM_UART_CR);