[PATCH 3/8] atiixp/cs5535/scc_pata: fix "idex=ata66" parameter handling

Bartlomiej Zolnierkiewicz
2008-01-06T16:52:04Z

Don't override the cable type if the "idex=ata66" parameter was used.

While at it:

* atiixp.c: factor out cable detection to atiixp_cable_detect() from
init_hwif_atiixp().

* cs5535.c: pass 'ide_hwif_t *hwif' instead of 'struct pci_dev *dev' to
cs5535_cable_detect().

* scc_pata.c: factor out cable detection to scc_cable_detect() from
init_hwif_scc() and remove incorrect comment.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
+16 bytes
drivers/ide/pci/atiixp.c | 24 +++++++++++++++---------
drivers/ide/pci/cs5535.c | 8 ++++----
drivers/ide/pci/scc_pata.c | 9 +++++++--
3 files changed, 26 insertions(+), 15 deletions(-)

Index: b/drivers/ide/pci/atiixp.c
===================================================================
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -121,6 +121,19 @@ static void atiixp_set_dma_mode(ide_driv
spin_unlock_irqrestore(&atiixp_lock, flags);
}

+static u8 __devinit atiixp_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *pdev = to_pci_dev(hwif->dev);
+ u8 udma_mode = 0, ch = hwif->channel;
+
+ pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
+
+ if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
+ return ATA_CBL_PATA80;
+ else
+ return ATA_CBL_PATA40;
+}
+
/**
* init_hwif_atiixp - fill in the hwif for the ATIIXP
* @hwif: IDE interface
@@ -131,21 +144,14 @@ static void atiixp_set_dma_mode(ide_driv

static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
{
- struct pci_dev *pdev = to_pci_dev(hwif->dev);
- u8 udma_mode = 0, ch = hwif->channel;
-
hwif->set_pio_mode = &atiixp_set_pio_mode;
hwif->set_dma_mode = &atiixp_set_dma_mode;

if (!hwif->dma_base)
return;

- pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
-
- if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
- hwif->cbl = ATA_CBL_PATA80;
- else
- hwif->cbl = ATA_CBL_PATA40;
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = atiixp_cable_detect(hwif);
}

static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
Index: b/drivers/ide/pci/cs5535.c
===================================================================
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -155,8 +155,9 @@ static void cs5535_set_pio_mode(ide_driv
cs5535_set_speed(drive, XFER_PIO_0 + pio);
}

-static u8 __devinit cs5535_cable_detect(struct pci_dev *dev)
+static u8 __devinit cs5535_cable_detect(ide_hwif_t *hwif)
{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 bit;

/* if a 80 wire cable was detected */
@@ -175,15 +176,14 @@ static u8 __devinit cs5535_cable_detect(
*/
static void __devinit init_hwif_cs5535(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
-
hwif->set_pio_mode = &cs5535_set_pio_mode;
hwif->set_dma_mode = &cs5535_set_dma_mode;

if (hwif->dma_base == 0)
return;

- hwif->cbl = cs5535_cable_detect(dev);
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = cs5535_cable_detect(hwif);
}

static const struct ide_port_info cs5535_chipset __devinitdata = {
Index: b/drivers/ide/pci/scc_pata.c
===================================================================
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -644,6 +644,11 @@ static void __devinit init_iops_scc(ide_
init_mmio_iops_scc(hwif);
}

+static u8 __devinit scc_cable_detect(ide_hwif_t *hwif)
+{
+ return ATA_CBL_PATA80;
+}
+
/**
* init_hwif_scc - set up hwif
* @hwif: interface to set up
@@ -678,8 +683,8 @@ static void __devinit init_hwif_scc(ide_
else
hwif->ultra_mask = ATA_UDMA5; /* 100MHz */

- /* we support 80c cable only. */
- hwif->cbl = ATA_CBL_PATA80;
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = scc_cable_detect(hwif);
}

#define DECLARE_SCC_DEV(name_str) \