Patchwork [4/4] pata_sl82c105: implement sff_irq_check() method

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Submitter Sergei Shtylyov
Date Oct. 8, 2010, 3:02 p.m.
Message ID <201010081902.13183.sshtylyov@ru.mvista.com>
Download mbox | patch
Permalink /patch/67233/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Sergei Shtylyov - Oct. 8, 2010, 3:02 p.m.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>

---
The patch is against the recent Linus' tree.

 drivers/ata/pata_sl82c105.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

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Patch

Index: linux-2.6/drivers/ata/pata_sl82c105.c
===================================================================
--- linux-2.6.orig/drivers/ata/pata_sl82c105.c
+++ linux-2.6/drivers/ata/pata_sl82c105.c
@@ -227,6 +227,16 @@  static int sl82c105_qc_defer(struct ata_
 	return 0;
 }
 
+static bool sl82c105_sff_irq_check(struct ata_port *ap)
+{
+	struct pci_dev *pdev	= to_pci_dev(ap->host->dev);
+	u32 val, mask		= ap->port_no ? CTRL_IDE_IRQB : CTRL_IDE_IRQA;
+
+	pci_read_config_dword(pdev, 0x40, &val);
+
+	return val & mask;
+}
+
 static struct scsi_host_template sl82c105_sht = {
 	ATA_BMDMA_SHT(DRV_NAME),
 };
@@ -239,6 +249,7 @@  static struct ata_port_operations sl82c1
 	.cable_detect	= ata_cable_40wire,
 	.set_piomode	= sl82c105_set_piomode,
 	.prereset	= sl82c105_pre_reset,
+	.sff_irq_check	= sl82c105_sff_irq_check,
 };
 
 /**