Fix build failure for drivers/ata/pata_scc.c

The commit d4b2bab4f26345ea1803feb23ea92fbe3f6b77bc added deadline support
to prereset and reset methods to libbata the pata_scc driver wasn't
converted.  This patch is a naive attempt to bring this driver up to
scratch.

Build failures are:
drivers/ata/pata_scc.c: In function 'scc_pata_prereset':
drivers/ata/pata_scc.c:870: error: too few arguments to function 'ata_std_prereset'
drivers/ata/pata_scc.c: In function 'scc_error_handler':
drivers/ata/pata_scc.c:916: warning: passing argument 2 of 'ata_bmdma_drive_eh' from incompatible pointer type
drivers/ata/pata_scc.c:916: warning: passing argument 3 of 'ata_bmdma_drive_eh' from incompatible pointer type
drivers/ata/pata_scc.c: In function 'scc_pata_prereset':
drivers/ata/pata_scc.c:871: warning: control reaches end of non-void function

On a releated note scc_bus_post_reset() is (AFACT) identical to
ata_bus_post_reset(), would a patch to make ata_bus_post_reset() assesable
to drivers be accepted?

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Cc: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 28 insertions, 18 deletions

diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index aa138d211b09..61502bc7bf1d 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -489,23 +489,26 @@ static unsigned int scc_devchk (struct ata_port *ap,
  *      Note: Original code is ata_bus_post_reset().
  */
 
-static void scc_bus_post_reset (struct ata_port *ap, unsigned int devmask)
+static int scc_bus_post_reset(struct ata_port *ap, unsigned int devmask,
+                              unsigned long deadline)
 {
         struct ata_ioports *ioaddr = &ap->ioaddr;
         unsigned int dev0 = devmask & (1 << 0);
         unsigned int dev1 = devmask & (1 << 1);
-        unsigned long timeout;
+        int rc;
 
         /* if device 0 was found in ata_devchk, wait for its
          * BSY bit to clear
          */
-        if (dev0)
-                ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
+        if (dev0) {
+                rc = ata_wait_ready(ap, deadline);
+                if (rc && rc != -ENODEV)
+                        return rc;
+        }
 
         /* if device 1 was found in ata_devchk, wait for
          * register access, then wait for BSY to clear
          */
-        timeout = jiffies + ATA_TMOUT_BOOT;
         while (dev1) {
                 u8 nsect, lbal;
 
@@ -514,14 +517,15 @@ static void scc_bus_post_reset (struct ata_port *ap, unsigned int devmask)
                 lbal = in_be32(ioaddr->lbal_addr);
                 if ((nsect == 1) && (lbal == 1))
                         break;
-                if (time_after(jiffies, timeout)) {
-                        dev1 = 0;
-                        break;
-                }
+                if (time_after(jiffies, deadline))
+                        return -EBUSY;
                 msleep(50);     /* give drive a breather */
         }
-        if (dev1)
-                ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT);
+        if (dev1) {
+                rc = ata_wait_ready(ap, deadline);
+                if (rc && rc != -ENODEV)
+                        return rc;
+        }
 
         /* is all this really necessary? */
         ap->ops->dev_select(ap, 0);
@@ -529,6 +533,8 @@ static void scc_bus_post_reset (struct ata_port *ap, unsigned int devmask)
                 ap->ops->dev_select(ap, 1);
         if (dev0)
                 ap->ops->dev_select(ap, 0);
+
+        return 0;
 }
 
 /**
@@ -537,8 +543,8 @@ static void scc_bus_post_reset (struct ata_port *ap, unsigned int devmask)
  *      Note: Original code is ata_bus_softreset().
  */
 
-static unsigned int scc_bus_softreset (struct ata_port *ap,
-                                       unsigned int devmask)
+static unsigned int scc_bus_softreset(struct ata_port *ap, unsigned int devmask,
+                                      unsigned long deadline)
 {
         struct ata_ioports *ioaddr = &ap->ioaddr;
 
@@ -570,7 +576,7 @@ static unsigned int scc_bus_softreset (struct ata_port *ap,
         if (scc_check_status(ap) == 0xFF)
                 return 0;
 
-        scc_bus_post_reset(ap, devmask);
+        scc_bus_post_reset(ap, devmask, deadline);
 
         return 0;
 }
@@ -579,11 +585,13 @@ static unsigned int scc_bus_softreset (struct ata_port *ap,
  *      scc_std_softreset - reset host port via ATA SRST
  *      @ap: port to reset
  *      @classes: resulting classes of attached devices
+ *      @deadline: deadline jiffies for the operation
  *
  *      Note: Original code is ata_std_softreset().
  */
 
-static int scc_std_softreset (struct ata_port *ap, unsigned int *classes)
+static int scc_std_softreset (struct ata_port *ap, unsigned int *classes,
+                              unsigned long deadline)
 {
         unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS;
         unsigned int devmask = 0, err_mask;
@@ -607,7 +615,7 @@ static int scc_std_softreset (struct ata_port *ap, unsigned int *classes)
 
         /* issue bus reset */
         DPRINTK("about to softreset, devmask=%x\n", devmask);
-        err_mask = scc_bus_softreset(ap, devmask);
+        err_mask = scc_bus_softreset(ap, devmask, deadline);
         if (err_mask) {
                 ata_port_printk(ap, KERN_ERR, "SRST failed (err_mask=0x%x)\n",
                                 err_mask);
@@ -676,10 +684,11 @@ static void scc_bmdma_stop (struct ata_queued_cmd *qc)
 
                 if (reg & INTSTS_BMSINT) {
                         unsigned int classes;
+                        unsigned long deadline = jiffies + ATA_TMOUT_BOOT;
                         printk(KERN_WARNING "%s: Internal Bus Error\n", DRV_NAME);
                         out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMSINT);
                         /* TBD: SW reset */
-                        scc_std_softreset(ap, &classes);
+                        scc_std_softreset(ap, &classes, deadline);
                         continue;
                 }
 
@@ -862,9 +871,10 @@ static void scc_bmdma_freeze (struct ata_port *ap)
 /**
  *      scc_pata_prereset - prepare for reset
  *      @ap: ATA port to be reset
+ *      @deadline: deadline jiffies for the operation
  */
 
-static int scc_pata_prereset (struct ata_port *ap, unsigned long deadline)
+static int scc_pata_prereset(struct ata_port *ap, unsigned long deadline)
 {
         ap->cbl = ATA_CBL_PATA80;
         return ata_std_prereset(ap, deadline);