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author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2009-06-15 18:52:57 +0200 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-06-15 18:52:57 +0200 |
commit | eba8999cefb6b61704d8fa825b7694825a087765 (patch) | |
tree | e5f7d1ed464efe21160b425e8a57b017b9e99441 /drivers/ide/macide.c | |
parent | 74414a91204ee57528041f771da1fd1ee3ba64c4 (diff) | |
download | kernel_samsung_tuna-eba8999cefb6b61704d8fa825b7694825a087765.zip kernel_samsung_tuna-eba8999cefb6b61704d8fa825b7694825a087765.tar.gz kernel_samsung_tuna-eba8999cefb6b61704d8fa825b7694825a087765.tar.bz2 |
ide: move IRQ clearing from ack_intr() method to clear_irq() method (take 2)
There are now two methods that clear the port interrupt: ack_intr() method,
implemented only on M680x0 machines, that is called at the start of ide_intr(),
and clear_irq() method, that is called somewhat later in this function. In
order to stop this duplication, delegate the task of clearing the interrupt
to clear_irq() method, only leaving to ack_intr() the task of testing for the
port interrupt.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/macide.c')
-rw-r--r-- | drivers/ide/macide.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/ide/macide.c b/drivers/ide/macide.c index 1447c8c..05cdab3 100644 --- a/drivers/ide/macide.c +++ b/drivers/ide/macide.c @@ -55,13 +55,16 @@ volatile unsigned char *ide_ifr = (unsigned char *) (IDE_BASE + IDE_IFR); int macide_ack_intr(ide_hwif_t* hwif) { - if (*ide_ifr & 0x20) { - *ide_ifr &= ~0x20; + if (*ide_ifr & 0x20) return 1; - } return 0; } +static void macide_clear_irq(ide_drive_t *drive) +{ + *ide_ifr &= ~0x20; +} + static void __init macide_setup_ports(struct ide_hw *hw, unsigned long base, int irq, ide_ack_intr_t *ack_intr) { @@ -78,7 +81,12 @@ static void __init macide_setup_ports(struct ide_hw *hw, unsigned long base, hw->ack_intr = ack_intr; } +static const struct ide_port_ops macide_port_ops = { + .clear_irq = macide_clear_irq, +}; + static const struct ide_port_info macide_port_info = { + .port_ops = &macide_port_ops, .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, .irq_flags = IRQF_SHARED, .chipset = ide_generic, @@ -97,6 +105,7 @@ static int __init macide_init(void) unsigned long base; int irq; struct ide_hw hw, *hws[] = { &hw }; + struct ide_port_info d = macide_port_info; if (!MACH_IS_MAC) return -ENODEV; @@ -115,6 +124,7 @@ static int __init macide_init(void) case MAC_IDE_BABOON: base = BABOON_BASE; ack_intr = NULL; + d.port_ops = NULL; irq = IRQ_BABOON_1; break; default: @@ -126,7 +136,7 @@ static int __init macide_init(void) macide_setup_ports(&hw, base, irq, ack_intr); - return ide_host_add(&macide_port_info, hws, 1, NULL); + return ide_host_add(&d, hws, 1, NULL); } module_init(macide_init); |