diff options
| -rw-r--r-- | drivers/ide/ide-lib.c | 18 | ||||
| -rw-r--r-- | include/linux/ide.h | 3 |
2 files changed, 8 insertions, 13 deletions
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 8afce4ceea3..68719314df3 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -345,16 +345,16 @@ static int ide_scan_pio_blacklist (char *model) /** * ide_get_best_pio_mode - get PIO mode from drive - * @driver: drive to consider + * @drive: drive to consider * @mode_wanted: preferred mode - * @max_mode: highest allowed - * @d: pio data + * @max_mode: highest allowed mode + * @d: PIO data * * This routine returns the recommended PIO settings for a given drive, * based on the drive->id information and the ide_pio_blacklist[]. - * This is used by most chipset support modules when "auto-tuning". * - * Drive PIO mode auto selection + * Drive PIO mode is auto-selected if 255 is passed as mode_wanted. + * This is used by most chipset support modules when "auto-tuning". */ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_pio_data_t *d) @@ -367,6 +367,7 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_p if (mode_wanted != 255) { pio_mode = mode_wanted; + use_iordy = (pio_mode > 2); } else if (!drive->id) { pio_mode = 0; } else if ((pio_mode = ide_scan_pio_blacklist(id->model)) != -1) { @@ -396,19 +397,12 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_p } } -#if 0 - if (drive->id->major_rev_num & 0x0004) printk("ATA-2 "); -#endif - /* * Conservative "downgrade" for all pre-ATA2 drives */ if (pio_mode && pio_mode < 4) { pio_mode--; overridden = 1; -#if 0 - use_iordy = (pio_mode > 2); -#endif if (cycle_time && cycle_time < ide_pio_timings[pio_mode].cycle_time) cycle_time = 0; /* use standard timing */ } diff --git a/include/linux/ide.h b/include/linux/ide.h index 79c028251c7..34f2676b3c6 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1359,7 +1359,8 @@ u8 ide_dump_status(ide_drive_t *, const char *, u8); typedef struct ide_pio_timings_s { int setup_time; /* Address setup (ns) minimum */ int active_time; /* Active pulse (ns) minimum */ - int cycle_time; /* Cycle time (ns) minimum = (setup + active + recovery) */ + int cycle_time; /* Cycle time (ns) minimum = */ + /* active + recovery (+ setup for some chips) */ } ide_pio_timings_t; typedef struct ide_pio_data_s { |