Lines Matching defs:clock
61 * single clock source per channel so mixed UDMA100/133 performance
62 * isn't perfect and we have to pick a clock. Thankfully none of this
91 /* We need these for switching the clock when DMA goes on/off
122 * current clock. These share the same register so are managed by
149 * current clock. Handles the dual clocks and also knows about
192 int clock, altclock;
198 clock = itdev->want[0][1];
201 clock = itdev->want[1][1];
206 if (clock == ATA_ANY)
207 clock = altclock;
209 /* Nobody cares - keep the same clock */
210 if (clock == ATA_ANY)
213 if (clock == itdev->clock_mode)
217 if (clock == ATA_66)
265 /* We prefer 66Mhz clock for PIO 0-3, don't care for PIO4 */
280 * timing register is private and we need only consider the clock. If
365 * right clock values.
386 * Device selection hook. If necessary perform clock switching