amd74xx/via82cxxx: use ide_tune_dma()
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Thu, 11 Oct 2007 21:54:00 +0000 (23:54 +0200)
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Thu, 11 Oct 2007 21:54:00 +0000 (23:54 +0200)
* Use ide_tune_dma() in amd74xx/via82cxxx driver, this fixes following bugs:
  - DMA capability bit not being checked on the device
  - DMA blacklist not being checked
  - DMA mode being programmed even if drive->autodma == 0
    (thus possibly destroying PIO timings)

* Bump driver version.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
drivers/ide/pci/amd74xx.c
drivers/ide/pci/via82cxxx.c

index 1088ba86cd1defb6059359d522d2cb5a167b83da..513205e52ad2f0b6a9ff8e68974502ad5b47293c 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Version 2.21
+ * Version 2.22
  *
  * AMD 755/756/766/8111 and nVidia nForce/2/2s/3/3s/CK804/MCP04
  * IDE driver for Linux.
@@ -276,18 +276,11 @@ static void amd_set_pio_mode(ide_drive_t *drive, const u8 pio)
 
 static int amd74xx_ide_dma_check(ide_drive_t *drive)
 {
-       u8 speed = ide_max_dma_mode(drive);
-
-       if (speed == 0) {
-               ide_set_max_pio(drive);
-               return -1;
-       }
-
-       amd_set_drive(drive, speed);
-
-       if (drive->autodma)
+       if (ide_tune_dma(drive))
                return 0;
 
+       ide_set_max_pio(drive);
+
        return -1;
 }
 
index 2fc4f8835f198da78acd2783a0002cfec0e17105..3611ca6b13b7d4fa3899167db86f1e80e082c0d3 100644 (file)
@@ -1,6 +1,6 @@
 /*
  *
- * Version 3.47
+ * Version 3.48
  *
  * VIA IDE driver for Linux. Supported southbridges:
  *
@@ -217,18 +217,11 @@ static void via_set_pio_mode(ide_drive_t *drive, const u8 pio)
  
 static int via82cxxx_ide_dma_check (ide_drive_t *drive)
 {
-       u8 speed = ide_max_dma_mode(drive);
-
-       if (speed == 0) {
-               ide_set_max_pio(drive);
-               return -1;
-       }
-
-       via_set_drive(drive, speed);
-
-       if (drive->autodma)
+       if (ide_tune_dma(drive))
                return 0;
 
+       ide_set_max_pio(drive);
+
        return -1;
 }