diff options
Diffstat (limited to 'drivers/pcmcia/yenta_socket.c')
| -rw-r--r-- | drivers/pcmcia/yenta_socket.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 967c766f53ba..42f6763db400 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -356,7 +356,9 @@ static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) exca_writeb(socket, I365_POWER, reg); /* CSC interrupt: no ISA irq for CSC */ - reg = I365_CSC_DETECT; + reg = exca_readb(socket, I365_CSCINT); + reg &= I365_CSC_IRQ_MASK; + reg |= I365_CSC_DETECT; if (state->flags & SS_IOCARD) { if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG; @@ -912,6 +914,7 @@ static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mas int i; unsigned long val; u32 mask; + u8 reg; /* * Probe for usable interrupts using the force @@ -919,6 +922,7 @@ static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mas */ cb_writel(socket, CB_SOCKET_EVENT, -1); cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); + reg = exca_readb(socket, I365_CSCINT); exca_writeb(socket, I365_CSCINT, 0); val = probe_irq_on() & isa_irq_mask; for (i = 1; i < 16; i++) { @@ -930,7 +934,7 @@ static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mas cb_writel(socket, CB_SOCKET_EVENT, -1); } cb_writel(socket, CB_SOCKET_MASK, 0); - exca_writeb(socket, I365_CSCINT, 0); + exca_writeb(socket, I365_CSCINT, reg); mask = probe_irq_mask(val) & 0xffff; @@ -967,6 +971,8 @@ static irqreturn_t yenta_probe_handler(int irq, void *dev_id) /* probes the PCI interrupt, use only on override functions */ static int yenta_probe_cb_irq(struct yenta_socket *socket) { + u8 reg; + if (!socket->cb_irq) return -1; @@ -979,7 +985,8 @@ static int yenta_probe_cb_irq(struct yenta_socket *socket) } /* generate interrupt, wait */ - exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG); + reg = exca_readb(socket, I365_CSCINT); + exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG); cb_writel(socket, CB_SOCKET_EVENT, -1); cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); @@ -988,7 +995,7 @@ static int yenta_probe_cb_irq(struct yenta_socket *socket) /* disable interrupts */ cb_writel(socket, CB_SOCKET_MASK, 0); - exca_writeb(socket, I365_CSCINT, 0); + exca_writeb(socket, I365_CSCINT, reg); cb_writel(socket, CB_SOCKET_EVENT, -1); exca_readb(socket, I365_CSC); |
