Now that DIPM can be used independently from HIPM, ata_piix can
support LPM too.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
---
drivers/ata/ata_piix.c | 24 +++++++++++++++++++++++-
1 files changed, 23 insertions(+), 1 deletions(-)
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 3971bc0..8f333f2 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -175,6 +175,8 @@ static int piix_sidpr_scr_read(struct ata_link *link,
unsigned int reg, u32 *val);
static int piix_sidpr_scr_write(struct ata_link *link,
unsigned int reg, u32 val);
+static int piix_sidpr_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
+ unsigned hints);
static bool piix_irq_check(struct ata_port *ap);
#ifdef CONFIG_PM
static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
@@ -344,11 +346,22 @@ static struct ata_port_operations ich_pata_ops = {
.set_dmamode = ich_set_dmamode,
};
+static struct device_attribute *piix_sidpr_shost_attrs[] = {
+ &dev_attr_link_power_management_policy,
+ NULL
+};
+
+static struct scsi_host_template piix_sidpr_sht = {
+ ATA_BMDMA_SHT(DRV_NAME),
+ .shost_attrs = piix_sidpr_shost_attrs,
+};
+
static struct ata_port_operations piix_sidpr_sata_ops = {
.inherits = &piix_sata_ops,
.hardreset = sata_std_hardreset,
.scr_read = piix_sidpr_scr_read,
.scr_write = piix_sidpr_scr_write,
+ .set_lpm = piix_sidpr_set_lpm,
};
static const struct piix_map_db ich5_map_db = {
@@ -980,6 +993,12 @@ static int piix_sidpr_scr_write(struct ata_link *link,
return 0;
}
+static int piix_sidpr_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
+ unsigned hints)
+{
+ return sata_link_scr_lpm(link, policy, false);
+}
+
static bool piix_irq_check(struct ata_port *ap)
{
if (unlikely(!ap->ioaddr.bmdma_addr))
@@ -1539,6 +1558,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev,
struct device *dev = &pdev->dev;
struct ata_port_info port_info[2];
const struct ata_port_info *ppi[] = { &port_info[0], &port_info[1] };
+ struct scsi_host_template *sht = &piix_sht;
unsigned long port_flags;
struct ata_host *host;
struct piix_host_priv *hpriv;
@@ -1608,6 +1628,8 @@ static int __devinit piix_init_one(struct pci_dev *pdev,
rc = piix_init_sidpr(host);
if (rc)
return rc;
+ if (host->ports[0]->ops == &piix_sidpr_sata_ops)
+ sht = &piix_sidpr_sht;
}
/* apply IOCFG bit18 quirk */
@@ -1634,7 +1656,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev,
host->flags |= ATA_HOST_PARALLEL_SCAN;
pci_set_master(pdev);
- return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, &piix_sht);
+ return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht);
}
static void piix_remove_one(struct pci_dev *pdev)
--
1.7.1
--
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