From: Ken Kawasaki Date: Sat, 19 Jun 2010 15:24:27 +0000 (+0000) Subject: smc91c92_cs: fix the problem that lan & modem does not work simultaneously X-Git-Tag: v3.0~4197^2~77 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9735b7ef005aaef5e5905cddba893f8725cd8867;p=platform%2Fkernel%2Flinux-amlogic.git 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: Ken Kawasaki Signed-off-by: David S. Miller --- diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index 64e6a84..307cd17 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -1505,12 +1505,20 @@ irq_done: 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); }