[PATCH] 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@xxxxxxxxx>
---
drivers/ide/ide-dma.c | 5 +++--
drivers/ide/ide-lib.c | 12 ------------
drivers/ide/pci/cmd64x.c | 15 +--------------
drivers/ide/pci/cs5530.c | 8 ++------
drivers/ide/pci/sc1200.c | 8 ++------
drivers/ide/pci/siimage.c | 24 +-----------------------
drivers/ide/pci/sl82c105.c | 14 +-------------
drivers/ide/ppc/scc_pata.c | 22 +---------------------
include/linux/ide.h | 1 -
9 files changed, 11 insertions(+), 98 deletions(-)
Index: b/drivers/ide/ide-dma.c
===================================================================
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -792,9 +792,10 @@ int ide_tune_dma(ide_drive_t *drive)
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);
Index: b/drivers/ide/ide-lib.c
===================================================================
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -111,18 +111,6 @@ u8 ide_rate_filter(ide_drive_t *drive, u
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;
Index: b/drivers/ide/pci/cmd64x.c
===================================================================
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -350,22 +350,9 @@ static int cmd64x_tune_chipset (ide_driv
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))
Index: b/drivers/ide/pci/cs5530.c
===================================================================
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -137,12 +137,8 @@ out:
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;
}
Index: b/drivers/ide/pci/sc1200.c
===================================================================
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -240,12 +240,8 @@ static int sc1200_tune_chipset(ide_drive
*/
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;
}
Index: b/drivers/ide/pci/siimage.c
===================================================================
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -375,28 +375,6 @@ static int siimage_tune_chipset (ide_dri
}
/**
- * 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 config_chipset_for_dma (ide_d
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))
Index: b/drivers/ide/pci/sl82c105.c
===================================================================
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -146,18 +146,6 @@ static int sl82c105_tune_chipset(ide_dri
return ide_config_drive_speed(drive, mode);
}
-static int config_for_dma (ide_drive_t *drive)
-{
- u8 mode = ide_max_dma_mode(drive);
-
- DBG(("config_for_dma(drive:%s)\n", drive->name));
-
- if (mode == 0 || sl82c105_tune_chipset(drive, mode))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
/*
* Check to see if the drive and chipset are capable of DMA mode.
*/
@@ -165,7 +153,7 @@ static int sl82c105_ide_dma_check (ide_d
{
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;
Index: b/drivers/ide/ppc/scc_pata.c
===================================================================
--- a/drivers/ide/ppc/scc_pata.c
+++ b/drivers/ide/ppc/scc_pata.c
@@ -322,26 +322,6 @@ static int scc_tune_chipset(ide_drive_t
}
/**
- * 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_chipset_for_dma(id
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))
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1354,7 +1354,6 @@ static inline void ide_set_hwifdata (ide
/* 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);
-
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