libata: make SCR access ops per-link

Logically, SCR access ops should take @link; however, there was no
compelling reason to convert all SCR access ops when adding @link
abstraction as there's one-to-one mapping between a port and a non-PMP
link.  However, that assumption won't hold anymore with the scheduled
addition of slave link.

Make SCR access ops per-link.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 14 insertions, 14 deletions

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index c815f8ecf6e6..2b24ae58b52e 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -493,10 +493,10 @@ struct mv_hw_ops {
         void (*reset_bus)(struct ata_host *host, void __iomem *mmio);
 };
 
-static int mv_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val);
-static int mv_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val);
-static int mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val);
-static int mv5_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val);
+static int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val);
+static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val);
+static int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val);
+static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val);
 static int mv_port_start(struct ata_port *ap);
 static void mv_port_stop(struct ata_port *ap);
 static int mv_qc_defer(struct ata_queued_cmd *qc);
@@ -1070,23 +1070,23 @@ static unsigned int mv_scr_offset(unsigned int sc_reg_in)
         return ofs;
 }
 
-static int mv_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val)
+static int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val)
 {
         unsigned int ofs = mv_scr_offset(sc_reg_in);
 
         if (ofs != 0xffffffffU) {
-                *val = readl(mv_ap_base(ap) + ofs);
+                *val = readl(mv_ap_base(link->ap) + ofs);
                 return 0;
         } else
                 return -EINVAL;
 }
 
-static int mv_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val)
+static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
 {
         unsigned int ofs = mv_scr_offset(sc_reg_in);
 
         if (ofs != 0xffffffffU) {
-                writelfl(val, mv_ap_base(ap) + ofs);
+                writelfl(val, mv_ap_base(link->ap) + ofs);
                 return 0;
         } else
                 return -EINVAL;
@@ -2251,11 +2251,11 @@ static unsigned int mv5_scr_offset(unsigned int sc_reg_in)
         return ofs;
 }
 
-static int mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val)
+static int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val)
 {
-        struct mv_host_priv *hpriv = ap->host->private_data;
+        struct mv_host_priv *hpriv = link->ap->host->private_data;
         void __iomem *mmio = hpriv->base;
-        void __iomem *addr = mv5_phy_base(mmio, ap->port_no);
+        void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no);
         unsigned int ofs = mv5_scr_offset(sc_reg_in);
 
         if (ofs != 0xffffffffU) {
@@ -2265,11 +2265,11 @@ static int mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val)
                 return -EINVAL;
 }
 
-static int mv5_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val)
+static int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val)
 {
-        struct mv_host_priv *hpriv = ap->host->private_data;
+        struct mv_host_priv *hpriv = link->ap->host->private_data;
         void __iomem *mmio = hpriv->base;
-        void __iomem *addr = mv5_phy_base(mmio, ap->port_no);
+        void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no);
         unsigned int ofs = mv5_scr_offset(sc_reg_in);
 
         if (ofs != 0xffffffffU) {