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, 2 insertions, 2 deletions

diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index d84e0c8ea02f..fefe71dbed1a 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -272,13 +272,13 @@ static struct scsi_host_template mpc52xx_ata_sht = {
         .can_queue              = ATA_DEF_QUEUE,
         .this_id                = ATA_SHT_THIS_ID,
         .sg_tablesize           = LIBATA_MAX_PRD,
-        .max_sectors            = ATA_MAX_SECTORS,
         .cmd_per_lun            = ATA_SHT_CMD_PER_LUN,
         .emulated               = ATA_SHT_EMULATED,
         .use_clustering         = ATA_SHT_USE_CLUSTERING,
         .proc_name              = DRV_NAME,
         .dma_boundary           = ATA_DMA_BOUNDARY,
         .slave_configure        = ata_scsi_slave_config,
+        .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
 };
 
@@ -298,7 +298,7 @@ static struct ata_port_operations mpc52xx_ata_port_ops = {
         .data_xfer              = ata_data_xfer,
         .irq_clear              = ata_noop_irq_clear,
         .irq_on                 = ata_irq_on,
-        .port_start             = ata_port_start,
+        .port_start             = ata_sff_port_start,
 };
 
 static int __devinit