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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/libata-eh.c
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@@ -3570,7 +3570,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
/* configure link power saving */
if (ehc->i.action & ATA_EH_LPM)
ata_for_each_dev(dev, link, ALL)
ata_dev_enable_pm(dev, ap->pm_policy);
ata_dev_enable_pm(dev, ap->lpm_policy);
/* this link is okay now */
ehc->i.flags = 0;