Hi Finn,
On Tue, Dec 6, 2011 at 16:13, Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx> wrote:
> +static void pmz_interrupt_control(struct uart_pmac_port *uap, int enable)
> +{
> + if (enable) {
> + uap->curregs[1] |= INT_ALL_Rx | TxINT_ENAB;
> + if (!ZS_IS_EXTCLK(uap))
> + uap->curregs[1] |= EXT_INT_ENAB;
> + } else {
> + uap->curregs[1] &= ~(EXT_INT_ENAB | TxINT_ENAB | RxINT_MASK);
Should there be a call to zssync() here?
The old code always did that after disabling interrupts.
> + }
> + write_zsreg(uap, R1, uap->curregs[1]);
> +}
> +
> static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap)
> {
> struct tty_struct *tty = NULL;
> @@ -339,9 +351,7 @@ static struct tty_struct *pmz_receive_ch
>
> return tty;
> flood:
> - uap->curregs[R1] &= ~(EXT_INT_ENAB | TxINT_ENAB | RxINT_MASK);
> - write_zsreg(uap, R1, uap->curregs[R1]);
> - zssync(uap);
Cfr. e.g. here.
> + pmz_interrupt_control(uap, 0);
> pmz_error("pmz: rx irq flood !\n");
> return tty;
> }
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
