From f4b5cc874158a139c091b3decd468929e10645e6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 7 Aug 2006 11:39:04 +0900 Subject: [PATCH] [PATCH] ahci: remove IRQ mask clearing from init_controller() Initial IRQ mask clearing is done by libata-core by freezing all ports prior to requesting IRQ. Remove redundant IRQ clearing from init_controller(). Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/ahci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index f5734a97580a..68fd7667a082 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -662,14 +662,13 @@ static void ahci_init_controller(void __iomem *mmio, struct pci_dev *pdev, VPRINTK("PORT_SCR_ERR 0x%x\n", tmp); writel(tmp, port_mmio + PORT_SCR_ERR); - /* clear & turn off port IRQ */ + /* clear port IRQ */ tmp = readl(port_mmio + PORT_IRQ_STAT); VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp); if (tmp) writel(tmp, port_mmio + PORT_IRQ_STAT); writel(1 << i, mmio + HOST_IRQ_STAT); - writel(0, port_mmio + PORT_IRQ_MASK); } tmp = readl(mmio + HOST_CTL);