trm290: do hook dma_host_{on,off} methods (take 2)

Using default methods caused the chip's DMA PRD count registers, inadvertently
starting DMA!  While fixing it, also do:

- get rid of the 'ide_' prefixes in several functions for which the prefix in
  the method's name has been 'ide_' ectomized already;

- align the code hooking the IDE DMA methods in init_hwif_trm290()...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 20 insertions, 9 deletions

diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c
index 0895e753a35d..0151d7fdfb8a 100644
--- a/drivers/ide/pci/trm290.c
+++ b/drivers/ide/pci/trm290.c
@@ -1,7 +1,8 @@
 /*
- *  linux/drivers/ide/pci/trm290.c              Version 1.02    Mar. 18, 2000
+ *  linux/drivers/ide/pci/trm290.c              Version 1.05    Dec. 26, 2007
  *
  *  Copyright (c) 1997-1998  Mark Lord
+ *  Copyright (c) 2007       MontaVista Software, Inc. <source@mvista.com>
  *  May be copied or modified under the terms of the GNU General Public License
  *
  *  June 22, 2004 - get rid of check_region
@@ -177,7 +178,7 @@ static void trm290_selectproc (ide_drive_t *drive)
         trm290_prepare_drive(drive, drive->using_dma);
 }
 
-static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
+static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
 {
         BUG_ON(HWGROUP(drive)->handler != NULL);        /* paranoia check */
         ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);
@@ -185,7 +186,7 @@ static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
         outb(command, IDE_COMMAND_REG);
 }
 
-static int trm290_ide_dma_setup(ide_drive_t *drive)
+static int trm290_dma_setup(ide_drive_t *drive)
 {
         ide_hwif_t *hwif = drive->hwif;
         struct request *rq = hwif->hwgroup->rq;
@@ -215,7 +216,7 @@ static int trm290_ide_dma_setup(ide_drive_t *drive)
         return 0;
 }
 
-static void trm290_ide_dma_start(ide_drive_t *drive)
+static void trm290_dma_start(ide_drive_t *drive)
 {
 }
 
@@ -240,6 +241,14 @@ static int trm290_ide_dma_test_irq (ide_drive_t *drive)
         return (status == 0x00ff);
 }
 
+static void trm290_dma_host_on(ide_drive_t *drive)
+{
+}
+
+static void trm290_dma_host_off(ide_drive_t *drive)
+{
+}
+
 static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
 {
         unsigned int cfgbase = 0;
@@ -280,11 +289,13 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
 
         ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3);
 
-        hwif->dma_setup = &trm290_ide_dma_setup;
-        hwif->dma_exec_cmd = &trm290_ide_dma_exec_cmd;
-        hwif->dma_start = &trm290_ide_dma_start;
-        hwif->ide_dma_end = &trm290_ide_dma_end;
-        hwif->ide_dma_test_irq = &trm290_ide_dma_test_irq;
+        hwif->dma_host_off      = &trm290_dma_host_off;
+        hwif->dma_host_on       = &trm290_dma_host_on;
+        hwif->dma_setup         = &trm290_dma_setup;
+        hwif->dma_exec_cmd      = &trm290_dma_exec_cmd;
+        hwif->dma_start         = &trm290_dma_start;
+        hwif->ide_dma_end       = &trm290_ide_dma_end;
+        hwif->ide_dma_test_irq  = &trm290_ide_dma_test_irq;
 
         hwif->selectproc = &trm290_selectproc;
 #if 1