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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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6
drivers/ata/libata.h
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@@ -100,8 +100,10 @@ extern int sata_link_init_spd(struct ata_link *link);
extern int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg);
extern int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg);
extern struct ata_port *ata_port_alloc(struct ata_host *host);
extern void ata_dev_enable_pm(struct ata_device *dev, enum link_pm policy);
extern void ata_lpm_schedule(struct ata_port *ap, enum link_pm);
extern void ata_dev_enable_pm(struct ata_device *dev,
enum ata_lpm_policy policy);
extern void ata_lpm_schedule(struct ata_port *ap,
enum ata_lpm_policy policy);
extern const char *sata_spd_string(unsigned int spd);
/* libata-acpi.c */