Exemplo n.º 1
0
static void __clk_enable(struct clk *clk)
{
	if (!clk)
		return;

	/* enable parent clock first */
	if (clk->parent)
		__clk_enable(clk->parent);

	if (clk->use_cnt++ == 0) {
		if (clk_is_pll1(clk)) {	/* PLL1 */
			chipcHw_pll1Enable(clk->rate_hz, 0);
		} else if (clk_is_pll2(clk)) {	/* PLL2 */
			chipcHw_pll2Enable(clk->rate_hz);
		} else if (clk_is_using_xtal(clk)) {	/* source is crystal */
			if (!clk_is_primary(clk))
				chipcHw_bypassClockEnable(clk->csp_id);
		} else {	/* source is PLL */
			chipcHw_setClockEnable(clk->csp_id);
		}
	}
}
Exemplo n.º 2
0
static void __clk_enable(struct clk *clk)
{
	if (!clk)
		return;

	
	if (clk->parent)
		__clk_enable(clk->parent);

	if (clk->use_cnt++ == 0) {
		if (clk_is_pll1(clk)) {	
			chipcHw_pll1Enable(clk->rate_hz, 0);
		} else if (clk_is_pll2(clk)) {	
			chipcHw_pll2Enable(clk->rate_hz);
		} else if (clk_is_using_xtal(clk)) {	
			if (!clk_is_primary(clk))
				chipcHw_bypassClockEnable(clk->csp_id);
		} else {	
			chipcHw_setClockEnable(clk->csp_id);
		}
	}
}
Exemplo n.º 3
0
static void __clk_disable(struct clk *clk)
{
	if (!clk)
		return;

	BUG_ON(clk->use_cnt == 0);

	if (--clk->use_cnt == 0) {
		if (clk_is_pll1(clk)) {	/* PLL1 */
			chipcHw_pll1Disable();
		} else if (clk_is_pll2(clk)) {	/* PLL2 */
			chipcHw_pll2Disable();
		} else if (clk_is_using_xtal(clk)) {	/* source is crystal */
			if (!clk_is_primary(clk))
				chipcHw_bypassClockDisable(clk->csp_id);
		} else {	/* source is PLL */
			chipcHw_setClockDisable(clk->csp_id);
		}
	}

	if (clk->parent)
		__clk_disable(clk->parent);
}