ide: remove ide_dma_enable()
* check ->speedproc return value in ide_tune_dma()
* use ide_tune_dma() in cmd64x/cs5530/sc1200/siimage/sl82c105/scc_pata drivers
* remove no longer needed ide_dma_enable()
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 5fe8519..de33e6f 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -792,9 +792,10 @@
if (!speed)
return 0;
- drive->hwif->speedproc(drive, speed);
+ if (drive->hwif->speedproc(drive, speed))
+ return 0;
- return ide_dma_enable(drive);
+ return 1;
}
EXPORT_SYMBOL_GPL(ide_tune_dma);
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 3be3c69..074bb32 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -111,18 +111,6 @@
EXPORT_SYMBOL(ide_rate_filter);
-int ide_dma_enable (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;
-
- return ((int) ((((id->dma_ultra >> 8) & hwif->ultra_mask) ||
- ((id->dma_mword >> 8) & hwif->mwdma_mask) ||
- ((id->dma_1word >> 8) & hwif->swdma_mask)) ? 1 : 0));
-}
-
-EXPORT_SYMBOL(ide_dma_enable);
-
int ide_use_fast_pio(ide_drive_t *drive)
{
struct hd_driveid *id = drive->id;
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 61ea96b..7c57dc6 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -352,22 +352,9 @@
return ide_config_drive_speed(drive, speed);
}
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- if (cmd64x_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
static int cmd64x_config_drive_for_dma (ide_drive_t *drive)
{
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index aacb79b..1eec1f3 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -137,12 +137,8 @@
static int cs5530_config_dma(ide_drive_t *drive)
{
- if (ide_use_dma(drive)) {
- u8 mode = ide_max_dma_mode(drive);
-
- if (mode && drive->hwif->speedproc(drive, mode) == 0)
- return 0;
- }
+ if (ide_tune_dma(drive))
+ return 0;
return 1;
}
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index c989fd9..523363c 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -240,12 +240,8 @@
*/
static int sc1200_config_dma (ide_drive_t *drive)
{
- if (ide_use_dma(drive)) {
- u8 mode = ide_max_dma_mode(drive);
-
- if (mode && drive->hwif->speedproc(drive, mode) == 0)
- return 0;
- }
+ if (ide_tune_dma(drive))
+ return 0;
return 1;
}
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index cbf9363..55bc0a3 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -322,26 +322,6 @@
}
/**
- * scc_config_chipset_for_dma - configure for DMA
- * @drive: drive to configure
- *
- * Called by scc_config_drive_for_dma().
- */
-
-static int scc_config_chipset_for_dma(ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- if (scc_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
-/**
* scc_configure_drive_for_dma - set up for DMA transfers
* @drive: drive we are going to set up
*
@@ -354,7 +334,7 @@
static int scc_config_drive_for_dma(ide_drive_t *drive)
{
- if (ide_use_dma(drive) && scc_config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index d09e74c..1a4444e 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -375,28 +375,6 @@
}
/**
- * config_chipset_for_dma - configure for DMA
- * @drive: drive to configure
- *
- * Called by the IDE layer when it wants the timings set up.
- * For the CMD680 we also need to set up the PIO timings and
- * enable DMA.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- if (siimage_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
-/**
* siimage_configure_drive_for_dma - set up for DMA transfers
* @drive: drive we are going to set up
*
@@ -408,7 +386,7 @@
static int siimage_config_drive_for_dma (ide_drive_t *drive)
{
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index 3d7759c..ac1ec17 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -159,28 +159,13 @@
}
/*
- * Configure the drive for DMA.
- */
-static int config_for_dma(ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- DBG(("config_for_dma(drive:%s)\n", drive->name));
-
- if (!speed || sl82c105_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
-/*
* Check to see if the drive and chipset are capable of DMA mode.
*/
static int sl82c105_ide_dma_check(ide_drive_t *drive)
{
DBG(("sl82c105_ide_dma_check(drive:%s)\n", drive->name));
- if (ide_use_dma(drive) && config_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
return -1;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index df4e6a5..be78961 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1357,7 +1357,6 @@
/* ide-lib.c */
u8 ide_rate_filter(ide_drive_t *, u8);
-extern int ide_dma_enable(ide_drive_t *drive);
extern char *ide_xfer_verbose(u8 xfer_rate);
extern void ide_toggle_bounce(ide_drive_t *drive, int on);
extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);