diff options
| author |   Finn Thain <fthain@telegraphics.com.au> | 2011-10-24 01:11:19 +1100 |
|---|---|---|
| committer |   Geert Uytterhoeven <geert@linux-m68k.org> | 2011-12-10 19:52:47 +0100 |
| commit | feb11e8a5617cd337d8a83fd9cde38dba8ef050f (patch) | |
| tree | 700cb8521ef6ca3648d30f93538e3630c7f1c79d /arch/m68k/mac | |
| parent | m68k/mac: oss irq fixes (diff) | |
| download | linux-dev-feb11e8a5617cd337d8a83fd9cde38dba8ef050f.tar.xz linux-dev-feb11e8a5617cd337d8a83fd9cde38dba8ef050f.zip | |
m68k/mac: fix baboon irq disable and shutdown
The baboon_disabled hack is broken because it is missing an irq shutdown method. So releasing a Baboon irq kills the other Baboon irqs. But we don't really need this hack because we don't have media bay support and TREX uses a NuBus IRQ. Remove it.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/mac')
| -rw-r--r-- | arch/m68k/mac/baboon.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index 74999685ddad..3fe0e43d44f6 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -18,7 +18,6 @@ int baboon_present; static volatile struct baboon *baboon; -static unsigned char baboon_disabled; #if 0 extern int macide_ack_intr(struct ata_channel *); @@ -84,37 +83,32 @@ static void baboon_irq(unsigned int irq, struct irq_desc *desc) void __init baboon_register_interrupts(void) { - baboon_disabled = 0; irq_set_chained_handler(IRQ_NUBUS_C, baboon_irq); } /* - * The means for masking individual baboon interrupts remains a mystery, so - * enable the umbrella interrupt only when no baboon interrupt is disabled. + * The means for masking individual Baboon interrupts remains a mystery. + * However, since we only use the IDE IRQ, we can just enable/disable all + * Baboon interrupts. If/when we handle more than one Baboon IRQ, we must + * either figure out how to mask them individually or else implement the + * same workaround that's used for NuBus slots (see nubus_disabled and + * via_nubus_irq_shutdown). */ void baboon_irq_enable(int irq) { - int irq_idx = IRQ_IDX(irq); - #ifdef DEBUG_IRQUSE printk("baboon_irq_enable(%d)\n", irq); #endif - baboon_disabled &= ~(1 << irq_idx); - if (!baboon_disabled) - mac_irq_enable(irq_get_irq_data(IRQ_NUBUS_C)); + mac_irq_enable(irq_get_irq_data(IRQ_NUBUS_C)); } void baboon_irq_disable(int irq) { - int irq_idx = IRQ_IDX(irq); - #ifdef DEBUG_IRQUSE printk("baboon_irq_disable(%d)\n", irq); #endif - baboon_disabled |= 1 << irq_idx; - if (baboon_disabled) - mac_irq_disable(irq_get_irq_data(IRQ_NUBUS_C)); + mac_irq_disable(irq_get_irq_data(IRQ_NUBUS_C)); } |