libata: normalize port_info, port_operations and sht tables

Over the time, port info, ops and sht structures developed quite a bit
of inconsistencies.  This patch updates drivers.

* Enable/disable_pm callbacks added to all ahci ops tables.

* Every driver for SFF controllers now uses ata_sff_port_start()
  instead of ata_port_start() unless the driver has custom
  implementation.

* Every driver for SFF controllers now uses ata_pci_default_filter()
  unless the driver has custom implementation.

* Removed an odd port_info->sht initialization from ata_piix.c.
  Likely a merge byproduct.

* A port which has ATA_FLAG_SATA set doesn't need to set cable_detect
  to ata_cable_sata().  Remove it from via and mv port ops.

* Some drivers had unnecessary .max_sectors initialization which is
  ignored and was missing .slave_destroy callback.  Fixed.

* Removed unnecessary sht initializations port_info's.

* Removed onsolete scsi device suspend/resume callbacks from
  pata_bf54x.

* No reason to set ata_pci_default_filter() and bmdma functions for
  PIO-only drivers.  Remove those callbacks and replace
  ata_bmdma_irq_clear with ata_noop_irq_clear.

* pata_platform sets port_start to ata_dummy_ret0.  port_start can
  just be set to NULL.

* sata_fsl supports NCQ but was missing qc_defer.  Fixed.

* pata_rb600_cf implements dummy port_start.  Removed.

Signed-off-by: Tejun Heo <htejun@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 492e521715d6..c6ea44a7f2a9 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -336,6 +336,8 @@ static const struct ata_port_operations ahci_vt8251_ops = {
         .check_altstatus        = ahci_check_status,
         .dev_select             = ata_noop_dev_select,
 
+        .dev_config             = ahci_dev_config,
+
         .tf_read                = ahci_tf_read,
 
         .qc_defer               = sata_pmp_qc_defer_cmd_switch,
@@ -360,6 +362,8 @@ static const struct ata_port_operations ahci_vt8251_ops = {
         .port_suspend           = ahci_port_suspend,
         .port_resume            = ahci_port_resume,
 #endif
+        .enable_pm              = ahci_enable_alpm,
+        .disable_pm             = ahci_disable_alpm,
 
         .port_start             = ahci_port_start,
         .port_stop              = ahci_port_stop,
@@ -370,6 +374,8 @@ static const struct ata_port_operations ahci_p5wdh_ops = {
         .check_altstatus        = ahci_check_status,
         .dev_select             = ata_noop_dev_select,
 
+        .dev_config             = ahci_dev_config,
+
         .tf_read                = ahci_tf_read,
 
         .qc_defer               = sata_pmp_qc_defer_cmd_switch,
@@ -394,6 +400,8 @@ static const struct ata_port_operations ahci_p5wdh_ops = {
         .port_suspend           = ahci_port_suspend,
         .port_resume            = ahci_port_resume,
 #endif
+        .enable_pm              = ahci_enable_alpm,
+        .disable_pm             = ahci_disable_alpm,
 
         .port_start             = ahci_port_start,
         .port_stop              = ahci_port_stop,