libata: rename SFF functions

SFF functions have confusing names.  Some have sff prefix, some have
bmdma, some std, some pci and some none.  Unify the naming by...

* SFF functions which are common to both BMDMA and non-BMDMA are
  prefixed with ata_sff_.

* SFF functions which are specific to BMDMA are prefixed with
  ata_bmdma_.

* SFF functions which are specific to PCI but apply to both BMDMA and
  non-BMDMA are prefixed with ata_pci_sff_.

* SFF functions which are specific to PCI and BMDMA are prefixed with
  ata_pci_bmdma_.

* Drop generic prefixes from LLD specific routines.  For example,
  bfin_std_dev_select -> bfin_dev_select.

The following renames are noteworthy.

  ata_qc_issue_prot() -> ata_sff_qc_issue()
  ata_pci_default_filter() -> ata_bmdma_mode_filter()
  ata_dev_try_classify() -> ata_sff_dev_classify()

This rename is in preparation of separating SFF support out of libata
core layer.  This patch strictly renames functions and doesn't
introduce any behavior difference.

Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index ac3ad55..744beeb 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -133,7 +133,7 @@
 }
 
 /**
- *	cs5530_qc_issue_prot	-	command issue
+ *	cs5530_qc_issue		-	command issue
  *	@qc: command pending
  *
  *	Called when the libata layer is about to issue a command. We wrap
@@ -142,7 +142,7 @@
  *	one MWDMA/UDMA bit.
  */
 
-static unsigned int cs5530_qc_issue_prot(struct ata_queued_cmd *qc)
+static unsigned int cs5530_qc_issue(struct ata_queued_cmd *qc)
 {
 	struct ata_port *ap = qc->ap;
 	struct ata_device *adev = qc->dev;
@@ -157,7 +157,7 @@
 		    	cs5530_set_dmamode(ap, adev);
 	}
 
-	return ata_qc_issue_prot(qc);
+	return ata_sff_qc_issue(qc);
 }
 
 static struct scsi_host_template cs5530_sht = {
@@ -168,8 +168,8 @@
 static struct ata_port_operations cs5530_port_ops = {
 	.inherits	= &ata_bmdma_port_ops,
 
-	.qc_prep 	= ata_dumb_qc_prep,
-	.qc_issue	= cs5530_qc_issue_prot,
+	.qc_prep 	= ata_sff_dumb_qc_prep,
+	.qc_issue	= cs5530_qc_issue,
 
 	.cable_detect	= ata_cable_40wire,
 	.set_piomode	= cs5530_set_piomode,
@@ -325,7 +325,7 @@
 		ppi[1] = &info_palmax_secondary;
 
 	/* Now kick off ATA set up */
-	return ata_pci_init_one(pdev, ppi, &cs5530_sht, NULL);
+	return ata_pci_sff_init_one(pdev, ppi, &cs5530_sht, NULL);
 }
 
 #ifdef CONFIG_PM