diff options
| author |   Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2010-01-18 07:21:05 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-01-19 01:52:30 -0800 |
| commit | cde727be967a86aee01042f35c8a861728272cf1 (patch) | |
| tree | 940b60eaf2c106337677ce06b9557816e90044b6 /drivers/ide | |
| parent | ide-timings: use ->pio_mode value to determine fastest PIO speed (diff) | |
| download | linux-dev-cde727be967a86aee01042f35c8a861728272cf1.tar.xz linux-dev-cde727be967a86aee01042f35c8a861728272cf1.zip | |
alim15x3: fix handling of address setup timings
Account for the requirements of the other device on the port.
Based on libata pata_ali host driver.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/alim15x3.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c index 6f0debae4e27..8e29801bbeb0 100644 --- a/drivers/ide/alim15x3.c +++ b/drivers/ide/alim15x3.c @@ -72,6 +72,7 @@ static void ali_fifo_control(ide_hwif_t *hwif, ide_drive_t *drive, int on) static void ali_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) { struct pci_dev *dev = to_pci_dev(hwif->dev); + ide_drive_t *pair = ide_get_pair_dev(drive); int bus_speed = ide_pci_clk ? ide_pci_clk : 33; unsigned long T = 1000000 / bus_speed; /* PCI clock based */ int port = hwif->channel ? 0x5c : 0x58; @@ -79,6 +80,16 @@ static void ali_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) struct ide_timing t; ide_timing_compute(drive, drive->pio_mode, &t, T, 1); + if (pair) { + struct ide_timing p; + + ide_timing_compute(pair, pair->pio_mode, &p, T, 1); + ide_timing_merge(&p, &t, &t, IDE_TIMING_SETUP); + if (pair->dma_mode) { + ide_timing_compute(pair, pair->dma_mode, &p, T, 1); + ide_timing_merge(&p, &t, &t, IDE_TIMING_SETUP); + } + } t.setup = clamp_val(t.setup, 1, 8) & 7; t.active = clamp_val(t.active, 1, 8) & 7; |