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Commit f4b5cc87 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
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[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: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 80289167

drivers/scsi/ahci.c

+1 −2
Original line number Diff line number Diff line
@@ -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);