au1xxx-ide: fix MWDMA support

Always use "fast" MWDMA support and remove dma_{black,white}_list
(they were based on completely bogus ->ide_dma_check implementation
which didn't set neither the host controller timings nor the device
for the desired transfer mode).

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

1 files changed, 2 insertions, 47 deletions

diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 7179d4953211..d2e926efd3cc 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -47,7 +47,6 @@
 #define IDE_AU1XXX_BURSTMODE    1
 
 static _auide_hwif auide_hwif;
-static int dbdma_init_done;
 
 static int auide_ddma_init(_auide_hwif *auide);
 
@@ -315,35 +314,6 @@ static int auide_dma_setup(ide_drive_t *drive)
         return 0;
 }
 
-static u8 auide_mdma_filter(ide_drive_t *drive)
-{
-        /*
-         * FIXME: ->white_list and ->black_list are based on completely bogus
-         * ->ide_dma_check implementation which didn't set neither the host
-         * controller timings nor the device for the desired transfer mode.
-         *
-         * They should be either removed or 0x00 MWDMA mask should be
-         * returned for devices on the ->black_list.
-         */
-
-        if (dbdma_init_done == 0) {
-                auide_hwif.white_list = ide_in_drive_list(drive->id,
-                                                          dma_white_list);
-                auide_hwif.black_list = ide_in_drive_list(drive->id,
-                                                          dma_black_list);
-                auide_hwif.drive = drive;
-                auide_ddma_init(&auide_hwif);
-                dbdma_init_done = 1;
-        }
-
-        /* Is the drive in our DMA black list? */
-        if (auide_hwif.black_list)
-                printk(KERN_WARNING "%s: Disabling DMA for %s (blacklisted)\n",
-                                    drive->name, drive->id->model);
-
-        return drive->hwif->mwdma_mask;
-}
-
 static int auide_dma_test_irq(ide_drive_t *drive)
 {       
         if (drive->waiting_for_dma == 0)
@@ -420,17 +390,8 @@ static int auide_ddma_init(_auide_hwif *auide) {
 
         dev_id   = AU1XXX_ATA_DDMA_REQ;
 
-        if (auide->white_list || auide->black_list) {
-                tsize    = 8;
-                devwidth = 32;
-        }
-        else { 
-                tsize    = 1;
-                devwidth = 16;
-                
-                printk(KERN_ERR "au1xxx-ide: %s is not on ide driver whitelist.\n",auide_hwif.drive->id->model);
-                printk(KERN_ERR "            please read 'Documentation/mips/AU1xxx_IDE.README'");
-        }
+        tsize    =  8; /*  1 */
+        devwidth = 32; /* 16 */
 
 #ifdef IDE_AU1XXX_BURSTMODE 
         flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
@@ -546,9 +507,6 @@ static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif)
 static const struct ide_port_ops au1xxx_port_ops = {
         .set_pio_mode           = au1xxx_set_pio_mode,
         .set_dma_mode           = auide_set_dma_mode,
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-        .mdma_filter            = auide_mdma_filter,
-#endif
 };
 
 static const struct ide_port_info au1xxx_port_info = {
@@ -648,10 +606,7 @@ static int au_ide_probe(struct device *dev)
         auide_hwif.hwif                 = hwif;
         hwif->hwif_data                 = &auide_hwif;
 
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA           
         auide_ddma_init(&auide_hwif);
-        dbdma_init_done = 1;
-#endif
 
         idx[0] = hwif->index;