Commit b0483e78 authored by Linus Torvalds's avatar Linus Torvalds
Browse files
parents 18688218 bca47613
......@@ -83,6 +83,9 @@ static unsigned int skip_txen_test; /* force skip of txen test at init time */
#define PASS_LIMIT 256
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
/*
* We default to IRQ0 for the "no irq" hack. Some
* machine types want others as well - they're free
......@@ -1792,7 +1795,7 @@ static unsigned int serial8250_tx_empty(struct uart_port *port)
up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
spin_unlock_irqrestore(&up->port.lock, flags);
return lsr & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
return (lsr & BOTH_EMPTY) == BOTH_EMPTY ? TIOCSER_TEMT : 0;
}
static unsigned int serial8250_get_mctrl(struct uart_port *port)
......@@ -1850,8 +1853,6 @@ static void serial8250_break_ctl(struct uart_port *port, int break_state)
spin_unlock_irqrestore(&up->port.lock, flags);
}
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
/*
* Wait for transmitter & holding register to empty
*/
......
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