SUP_UART_LSR
unsigned int lsr = readl(port->membase + SUP_UART_LSR);
lsr = readl(port->membase + SUP_UART_LSR);
ret = readl_poll_timeout_atomic(port->membase + SUP_UART_LSR, val,
unsigned int lsr = readl(port->membase + SUP_UART_LSR);
ret = readl_poll_timeout_atomic(port->membase + SUP_UART_LSR, val,
unsigned int lsr = readl(port->membase + SUP_UART_LSR);
unsigned int lsr = readl(port->membase + SUP_UART_LSR);