diff options
| author |   Ken Kawasaki <ken_kawasaki@spring.nifty.jp> | 2010-06-19 15:24:27 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-06-25 21:16:58 -0700 |
| commit | 9735b7ef005aaef5e5905cddba893f8725cd8867 (patch) | |
| tree | ab788df49e09c70466fcf69e60b9ee9c84033059 /drivers/net/pcmcia/smc91c92_cs.c | |
| parent | ipv6: fix NULL reference in proxy neighbor discovery (diff) | |
| download | linux-dev-9735b7ef005aaef5e5905cddba893f8725cd8867.tar.xz linux-dev-9735b7ef005aaef5e5905cddba893f8725cd8867.zip | |
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 <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/pcmcia/smc91c92_cs.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index 64e6a84bbbbe..307cd1721e91 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); } |