MSM_UART_SR_RX_READY
if (!(msm_read(port, MSM_UART_SR) & MSM_UART_SR_RX_READY))
} else if (!(msm_read(port, MSM_UART_SR) & MSM_UART_SR_RX_READY)) {
if ((sr & MSM_UART_SR_RX_READY) == 0) {
while ((sr = msm_read(port, MSM_UART_SR)) & MSM_UART_SR_RX_READY) {