ide: remove hwif->autodma and drive->autodma

* hpt34x.c: disable DMA masks for HPT345
  (hwif->autodma is zero so DMA won't be enabled anyway).

* trm290.c: disable IDE_HFLAG_TRUST_BIOS_FOR_DMA flag
  (hwif->autodma is zero so DMA won't be enabled anyway).

* Check noautodma global variable instead of drive->autodma in ide_tune_dma().

  This fixes handling of "ide=nodma" kernel parameter for icside, ide-cris,
  au1xxx-ide, pmac, it821x, jmicron, sgiioc4 and siimage host drivers.

* Remove hwif->autodma (it was not checked by IDE core code anyway) and
  drive->autodma (was set by all host drivers - except HPT345/TRM290 special
  cases - unless "ide=nodma" was used).

While at it:
- remove needless printk() from icside.c
- remove stale FIXME/comment from ide-probe.c
- don't force DMA off if PCI bus-mastering had to be enabled in setup-pci.c
  (this setting was always later over-ridden by host drivers anyway)

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c
index 88472e5a3ec7..44ac0e2f7a09 100644
--- a/drivers/ide/pci/hpt34x.c
+++ b/drivers/ide/pci/hpt34x.c
@@ -127,8 +127,6 @@ static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
 {
         u16 pcicmd = 0;
 
-        hwif->autodma = 0;
-
         hwif->set_pio_mode = &hpt34x_set_pio_mode;
         hwif->set_dma_mode = &hpt34x_set_mode;
 
@@ -141,15 +139,13 @@ static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
                 return;
 
 #ifdef CONFIG_HPT34X_AUTODMA
+        if ((pcicmd & PCI_COMMAND_MEMORY) == 0)
+                return;
+
         hwif->ultra_mask = 0x07;
         hwif->mwdma_mask = 0x07;
         hwif->swdma_mask = 0x07;
 #endif
-
-        if (!noautodma)
-                hwif->autodma = (pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0;
-        hwif->drives[0].autodma = hwif->autodma;
-        hwif->drives[1].autodma = hwif->autodma;
 }
 
 static ide_pci_device_t hpt34x_chipset __devinitdata = {