1 files changed, 15 insertions, 8 deletions

diff --git a/drivers/ide/cs5536.c b/drivers/ide/cs5536.c
index 0332a95eefd4..9623b852c616 100644
--- a/drivers/ide/cs5536.c
+++ b/drivers/ide/cs5536.c
@@ -146,14 +146,16 @@ static void cs5536_set_pio_mode(ide_drive_t *drive, const u8 pio)
         struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
         ide_drive_t *pair = ide_get_pair_dev(drive);
         int cshift = (drive->dn & 1) ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT;
+        unsigned long timings = (unsigned long)ide_get_drivedata(drive);
         u32 cast;
         u8 cmd_pio = pio;
 
         if (pair)
                 cmd_pio = min(pio, ide_get_best_pio_mode(pair, 255, 4));
 
-        drive->drive_data &= (IDE_DRV_MASK << 8);
-        drive->drive_data |= drv_timings[pio];
+        timings &= (IDE_DRV_MASK << 8);
+        timings |= drv_timings[pio];
+        ide_set_drivedata(drive, (void *)timings);
 
         cs5536_program_dtc(drive, drv_timings[pio]);
 
@@ -186,6 +188,7 @@ static void cs5536_set_dma_mode(ide_drive_t *drive, const u8 mode)
 
         struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
         int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT;
+        unsigned long timings = (unsigned long)ide_get_drivedata(drive);
         u32 etc;
 
         cs5536_read(pdev, ETC, &etc);
@@ -195,8 +198,9 @@ static void cs5536_set_dma_mode(ide_drive_t *drive, const u8 mode)
                 etc |= udma_timings[mode - XFER_UDMA_0] << dshift;
         } else { /* MWDMA */
                 etc &= ~(IDE_ETC_UDMA_MASK << dshift);
-                drive->drive_data &= IDE_DRV_MASK;
-                drive->drive_data |= mwdma_timings[mode - XFER_MW_DMA_0] << 8;
+                timings &= IDE_DRV_MASK;
+                timings |= mwdma_timings[mode - XFER_MW_DMA_0] << 8;
+                ide_set_drivedata(drive, (void *)timings);
         }
 
         cs5536_write(pdev, ETC, etc);
@@ -204,9 +208,11 @@ static void cs5536_set_dma_mode(ide_drive_t *drive, const u8 mode)
 
 static void cs5536_dma_start(ide_drive_t *drive)
 {
+        unsigned long timings = (unsigned long)ide_get_drivedata(drive);
+
         if (drive->current_speed < XFER_UDMA_0 &&
-            (drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK))
-                cs5536_program_dtc(drive, drive->drive_data >> 8);
+            (timings >> 8) != (timings & IDE_DRV_MASK))
+                cs5536_program_dtc(drive, timings >> 8);
 
         ide_dma_start(drive);
 }
@@ -214,10 +220,11 @@ static void cs5536_dma_start(ide_drive_t *drive)
 static int cs5536_dma_end(ide_drive_t *drive)
 {
         int ret = ide_dma_end(drive);
+        unsigned long timings = (unsigned long)ide_get_drivedata(drive);
 
         if (drive->current_speed < XFER_UDMA_0 &&
-            (drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK))
-                cs5536_program_dtc(drive, drive->drive_data & IDE_DRV_MASK);
+            (timings >> 8) != (timings & IDE_DRV_MASK))
+                cs5536_program_dtc(drive, timings & IDE_DRV_MASK);
 
         return ret;
 }