Commit 9735b7ef authored by Ken Kawasaki's avatar Ken Kawasaki Committed by David S. Miller

smc91c92_cs: fix the problem that lan & modem does not work simultaneously

smc91c92_cs:
  Fix the problem that lan & modem does not work simultaneously
  in the Megahertz multi-function card.
  We need to write MEGAHERTZ_ISR to retrigger interrupt.
Signed-off-by: default avatarKen Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9f888160
......@@ -1505,12 +1505,20 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
writeb(cor, smc->base + MOT_LAN + CISREG_COR);
}
#ifdef DOES_NOT_WORK
if (smc->base != NULL) { /* Megahertz MFC's */
readb(smc->base+MEGAHERTZ_ISR);
readb(smc->base+MEGAHERTZ_ISR);
if ((smc->base != NULL) && /* Megahertz MFC's */
(smc->manfid == MANFID_MEGAHERTZ) &&
(smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
u_char tmp;
tmp = readb(smc->base+MEGAHERTZ_ISR);
tmp = readb(smc->base+MEGAHERTZ_ISR);
/* Retrigger interrupt if needed */
writeb(tmp, smc->base + MEGAHERTZ_ISR);
writeb(tmp, smc->base + MEGAHERTZ_ISR);
}
#endif
spin_unlock(&smc->lock);
return IRQ_RETVAL(handled);
}
......
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