From cde727be967a86aee01042f35c8a861728272cf1 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 18 Jan 2010 07:21:05 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/ide/alim15x3.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c index 6f0deba..8e29801 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; -- 2.7.4