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libata: clean up lpm related symbols and sysfs show/store functions

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Link power management related symbols are in confusing state w/ mixed
usages of lpm, ipm and pm.  This patch cleans up lpm related symbols
and sysfs show/store functions as follows.

* lpm states - NOT_AVAILABLE, MIN_POWER, MAX_PERFORMANCE and
  MEDIUM_POWER are renamed to ATA_LPM_UNKNOWN and
  ATA_LPM_{MIN|MAX|MED}_POWER.

* Pre/postfixes are unified to lpm.

* sysfs show/store functions for link_power_management_policy were
  curiously named get/put and unnecessarily complex.  Renamed to
  show/store and simplified.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Tejun Heo
2010-09-01 17:50:04 +02:00
committed by Jeff Garzik
parent c43d559f04
commit c93b263e0d
9 changed files with 79 additions and 100 deletions
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2
drivers/ata/ahci.c
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@@ -1209,7 +1209,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
0x100 + ap->port_no * 0x80, "port");
/* set initial link pm policy */
ap->pm_policy = NOT_AVAILABLE;
ap->lpm_policy = ATA_LPM_UNKNOWN;
/* set enclosure management message type */
if (ap->flags & ATA_FLAG_EM)