Пример #1
0
int dsim_reg_enable_pll(u32 id, u32 en)
{
	u32 cnt;
	struct dsim_device *dsim0 = get_dsim_drvdata(0);
	struct dsim_device *dsim1 = get_dsim_drvdata(1);

	if ((dsim0 != NULL) && (dsim1 != NULL)) {
		if ((dsim0->state == DSIM_STATE_SUSPEND) && (dsim1->state == DSIM_STATE_SUSPEND))
			id = 0;
		else
			goto exit_enable_pll;
	}

	if (en) {
		cnt = 1000;
		dsim_reg_clear_int(id, DSIM_INTSRC_PLL_STABLE);

		dsim_reg_set_pll(id, 1);
		while (1) {
			cnt--;
			if (dsim_reg_is_pll_stable(id))
				return 0;
			if (cnt == 0)
				return -EBUSY;
		}
	} else { 
		dsim_reg_set_pll(id, 0);
	}

exit_enable_pll:
	return 0;
}
Пример #2
0
int dsim_reg_enable_pll(u32 id, u32 en)
{
	u32 cnt;

	if (en) {
		cnt = 1000;
		dsim_reg_clear_int(id, DSIM_INTSRC_PLL_STABLE);

		dsim_reg_set_pll(id, 1);
		while (1) {
			cnt--;
			if (dsim_reg_is_pll_stable(id))
				return 0;
			if (cnt == 0)
				return -EBUSY;
		}
	} else {
		dsim_reg_set_pll(id, 0);
	}

	return 0;
}
int dsim_reg_enable_pll(u32 en)
{
	u32 cnt = 1000;

	if (en) {
		dsim_reg_clear_int(DSIM_INTSRC_PLL_STABLE);

		dsim_reg_set_pll(1);
		udelay(200); /* should be wait 200us to stable PLL */

		while (1) {
			cnt--;
			if (dsim_reg_is_pll_stable())
				return 0;
			if (cnt == 0)
				return -EBUSY;
		}
	} else {
		dsim_reg_set_pll(0);
	}

	return 0;
}