ar933x_uart_rmw
ar933x_uart_rmw(up, AR933X_UART_CS_REG, AR933X_UART_CS_PARITY_M, cs);
ar933x_uart_rmw(up, AR933X_UART_CS_REG,
ar933x_uart_rmw(up, offset, 0, val);
ar933x_uart_rmw(up, offset, val, 0);