ide-pmac: store pmif instead of hwif in ->driver_data (take 2)

* Pass pmif instead of hwif to pmac_ide_do_{suspend,resume}().

* Store pmif instead of hwif in ->driver_data.

* Use dev_get_drvdata() instead of ->hwif_data to obtain pmif.

v2:
* Build fixes from Stephen Rothwell.

There should be no functional changes caused by this patch.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 57 insertions, 40 deletions

diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 93fb9067c043..9244b58e0548 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -424,7 +424,9 @@ static void pmac_ide_kauai_selectproc(ide_drive_t *drive);
 static void
 pmac_ide_selectproc(ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
 
         if (pmif == NULL)
                 return;
@@ -444,7 +446,9 @@ pmac_ide_selectproc(ide_drive_t *drive)
 static void
 pmac_ide_kauai_selectproc(ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
 
         if (pmif == NULL)
                 return;
@@ -465,7 +469,9 @@ pmac_ide_kauai_selectproc(ide_drive_t *drive)
 static void
 pmac_ide_do_update_timings(ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
 
         if (pmif == NULL)
                 return;
@@ -493,11 +499,13 @@ static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port)
 static void
 pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         struct ide_timing *tim = ide_timing_find_mode(XFER_PIO_0 + pio);
         u32 *timings, t;
         unsigned accessTicks, recTicks;
         unsigned accessTime, recTime;
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
         unsigned int cycle_time;
 
         if (pmif == NULL)
@@ -778,9 +786,11 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
 
 static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
 {
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         int unit = (drive->select.b.unit & 0x01);
         int ret = 0;
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
         u32 *timings, *timings2, tl[2];
 
         timings = &pmif->timings[unit];
@@ -852,11 +862,8 @@ sanitize_timings(pmac_ide_hwif_t *pmif)
 /* Suspend call back, should be called after the child devices
  * have actually been suspended
  */
-static int
-pmac_ide_do_suspend(ide_hwif_t *hwif)
+static int pmac_ide_do_suspend(pmac_ide_hwif_t *pmif)
 {
-        pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
-        
         /* We clear the timings */
         pmif->timings[0] = 0;
         pmif->timings[1] = 0;
@@ -884,11 +891,8 @@ pmac_ide_do_suspend(ide_hwif_t *hwif)
 /* Resume call back, should be called before the child devices
  * are resumed
  */
-static int
-pmac_ide_do_resume(ide_hwif_t *hwif)
+static int pmac_ide_do_resume(pmac_ide_hwif_t *pmif)
 {
-        pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
-        
         /* Hard reset & re-enable controller (do we really need to reset ? -BenH) */
         if (!pmif->mediabay) {
                 ppc_md.feature_call(PMAC_FTR_IDE_RESET, pmif->node, pmif->aapl_bus_id, 1);
@@ -916,7 +920,8 @@ pmac_ide_do_resume(ide_hwif_t *hwif)
 
 static u8 pmac_ide_cable_detect(ide_hwif_t *hwif)
 {
-        pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)ide_get_hwifdata(hwif);
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         struct device_node *np = pmif->node;
         const char *cable = of_get_property(np, "cable-type", NULL);
 
@@ -1058,7 +1063,6 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif, hw_regs_t *hw)
         default_hwif_mmiops(hwif);
         hwif->OUTBSYNC = pmac_outbsync;
 
-        hwif->hwif_data = pmif;
         ide_init_port_hw(hwif, hw);
 
         printk(KERN_INFO "ide%d: Found Apple %s controller, bus ID %d%s, irq %d\n",
@@ -1164,7 +1168,7 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match)
         } else
                 pmif->dma_regs = NULL;
 #endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */
-        dev_set_drvdata(&mdev->ofdev.dev, hwif);
+        dev_set_drvdata(&mdev->ofdev.dev, pmif);
 
         memset(&hw, 0, sizeof(hw));
         pmac_ide_init_ports(&hw, pmif->regbase);
@@ -1195,12 +1199,13 @@ out_free_pmif:
 static int
 pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t mesg)
 {
-        ide_hwif_t      *hwif = (ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
-        int             rc = 0;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
+        int rc = 0;
 
         if (mesg.event != mdev->ofdev.dev.power.power_state.event
                         && (mesg.event & PM_EVENT_SLEEP)) {
-                rc = pmac_ide_do_suspend(hwif);
+                rc = pmac_ide_do_suspend(pmif);
                 if (rc == 0)
                         mdev->ofdev.dev.power.power_state = mesg;
         }
@@ -1211,11 +1216,12 @@ pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t mesg)
 static int
 pmac_ide_macio_resume(struct macio_dev *mdev)
 {
-        ide_hwif_t      *hwif = (ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
-        int             rc = 0;
-        
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
+        int rc = 0;
+
         if (mdev->ofdev.dev.power.power_state.event != PM_EVENT_ON) {
-                rc = pmac_ide_do_resume(hwif);
+                rc = pmac_ide_do_resume(pmif);
                 if (rc == 0)
                         mdev->ofdev.dev.power.power_state = PMSG_ON;
         }
@@ -1284,7 +1290,7 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id)
         pmif->kauai_fcr = base;
         pmif->irq = pdev->irq;
 
-        pci_set_drvdata(pdev, hwif);
+        pci_set_drvdata(pdev, pmif);
 
         memset(&hw, 0, sizeof(hw));
         pmac_ide_init_ports(&hw, pmif->regbase);
@@ -1310,12 +1316,12 @@ out_free_pmif:
 static int
 pmac_ide_pci_suspend(struct pci_dev *pdev, pm_message_t mesg)
 {
-        ide_hwif_t      *hwif = (ide_hwif_t *)pci_get_drvdata(pdev);
-        int             rc = 0;
-        
+        pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)pci_get_drvdata(pdev);
+        int rc = 0;
+
         if (mesg.event != pdev->dev.power.power_state.event
                         && (mesg.event & PM_EVENT_SLEEP)) {
-                rc = pmac_ide_do_suspend(hwif);
+                rc = pmac_ide_do_suspend(pmif);
                 if (rc == 0)
                         pdev->dev.power.power_state = mesg;
         }
@@ -1326,11 +1332,11 @@ pmac_ide_pci_suspend(struct pci_dev *pdev, pm_message_t mesg)
 static int
 pmac_ide_pci_resume(struct pci_dev *pdev)
 {
-        ide_hwif_t      *hwif = (ide_hwif_t *)pci_get_drvdata(pdev);
-        int             rc = 0;
-        
+        pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)pci_get_drvdata(pdev);
+        int rc = 0;
+
         if (pdev->dev.power.power_state.event != PM_EVENT_ON) {
-                rc = pmac_ide_do_resume(hwif);
+                rc = pmac_ide_do_resume(pmif);
                 if (rc == 0)
                         pdev->dev.power.power_state = PMSG_ON;
         }
@@ -1421,10 +1427,11 @@ out:
 static int
 pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 {
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         struct dbdma_cmd *table;
         int i, count = 0;
-        ide_hwif_t *hwif = HWIF(drive);
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
         volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
         struct scatterlist *sg;
         int wr = (rq_data_dir(rq) == WRITE);
@@ -1520,7 +1527,8 @@ static int
 pmac_ide_dma_setup(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = HWIF(drive);
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         struct request *rq = HWGROUP(drive)->rq;
         u8 unit = (drive->select.b.unit & 0x01);
         u8 ata4;
@@ -1560,7 +1568,9 @@ pmac_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
 static void
 pmac_ide_dma_start(ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         volatile struct dbdma_regs __iomem *dma;
 
         dma = pmif->dma_regs;
@@ -1576,7 +1586,9 @@ pmac_ide_dma_start(ide_drive_t *drive)
 static int
 pmac_ide_dma_end (ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         volatile struct dbdma_regs __iomem *dma;
         u32 dstat;
         
@@ -1604,7 +1616,9 @@ pmac_ide_dma_end (ide_drive_t *drive)
 static int
 pmac_ide_dma_test_irq (ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         volatile struct dbdma_regs __iomem *dma;
         unsigned long status, timeout;
 
@@ -1664,7 +1678,9 @@ static void pmac_ide_dma_host_set(ide_drive_t *drive, int on)
 static void
 pmac_ide_dma_lost_irq (ide_drive_t *drive)
 {
-        pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
+        ide_hwif_t *hwif = drive->hwif;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         volatile struct dbdma_regs __iomem *dma;
         unsigned long status;
 
@@ -1694,7 +1710,8 @@ static const struct ide_dma_ops pmac_dma_ops = {
 static int __devinit pmac_ide_init_dma(ide_hwif_t *hwif,
                                        const struct ide_port_info *d)
 {
-        pmac_ide_hwif_t *pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
+        pmac_ide_hwif_t *pmif =
+                (pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
         struct pci_dev *dev = to_pci_dev(hwif->dev);
 
         /* We won't need pci_dev if we switch to generic consistent