diff options
| author | Sergei Shtylyov <sshtylyov@ru.mvista.com> | 2009-12-07 23:36:15 +0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-03-01 14:58:43 -0500 |
| commit | 859faa875ed6760fcdfaf6f1fec1155a7e43dc21 (patch) | |
| tree | 525825451ac60ed69476139cdc5355cf68762920 /drivers/ata/pata_hpt366.c | |
| parent | 1a1b172b9672e88d37adb5925b509e9236625d7e (diff) | |
pata_hpt366: remove redundant code
There's no need to clear the fast interrupt bit in hpt366_set_mode()
since we're doing it in hpt366_init_chipset() already.
While at it, rename 'addr1' local variable to 'addr' and
exclude 'ap->port_no' from its calculation as HPT36x are
single-channel-per-function chips.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_hpt366.c')
| -rw-r--r-- | drivers/ata/pata_hpt366.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c index 0bd48e8f21b..f6b285890ae 100644 --- a/drivers/ata/pata_hpt366.c +++ b/drivers/ata/pata_hpt366.c @@ -27,7 +27,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_hpt366" -#define DRV_VERSION "0.6.7" +#define DRV_VERSION "0.6.8" struct hpt_clock { u8 xfer_mode; @@ -207,17 +207,8 @@ static void hpt366_set_mode(struct ata_port *ap, struct ata_device *adev, { struct hpt_clock *clocks = ap->host->private_data; struct pci_dev *pdev = to_pci_dev(ap->host->dev); - u32 addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); - u32 addr2 = 0x51 + 4 * ap->port_no; + u32 addr = 0x40 + 4 * adev->devno; u32 mask, reg; - u8 fast; - - /* Fast interrupt prediction disable, hold off interrupt disable */ - pci_read_config_byte(pdev, addr2, &fast); - if (fast & 0x80) { - fast &= ~0x80; - pci_write_config_byte(pdev, addr2, fast); - } /* determine timing mask and find matching clock entry */ if (mode < XFER_MW_DMA_0) @@ -240,9 +231,9 @@ static void hpt366_set_mode(struct ata_port *ap, struct ata_device *adev, * on-chip PIO FIFO/buffer (and PIO MST mode as well) to avoid * problems handling I/O errors later. */ - pci_read_config_dword(pdev, addr1, ®); + pci_read_config_dword(pdev, addr, ®); reg = ((reg & ~mask) | (clocks->timing & mask)) & ~0xc0000000; - pci_write_config_dword(pdev, addr1, reg); + pci_write_config_dword(pdev, addr, reg); } /** |