Esempi in C++ (Cpp) per omap2_divisor_to_clksel

Esempio n. 1

File: clock.c Progetto: 274914765/C

int omap2_clksel_set_rate(struct clk *clk, unsigned long rate)
{
    u32 field_mask, field_val, reg_val, validrate, new_div = 0;
    void __iomem *div_addr;

    validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
    if (validrate != rate)
        return -EINVAL;

    div_addr = omap2_get_clksel(clk, &field_mask);
    if (div_addr == 0)
        return -EINVAL;

    field_val = omap2_divisor_to_clksel(clk, new_div);
    if (field_val == ~0)
        return -EINVAL;

    reg_val = __raw_readl(div_addr);
    reg_val &= ~field_mask;
    reg_val |= (field_val << __ffs(field_mask));
    __raw_writel(reg_val, div_addr);
    wmb();

    clk->rate = clk->parent->rate / new_div;

    if (clk->flags & DELAYED_APP && cpu_is_omap24xx()) {
        __raw_writel(OMAP24XX_VALID_CONFIG, OMAP24XX_PRCM_CLKCFG_CTRL);
        wmb();
    }

    return 0;
}

Esempio n. 2

File: clock.c Progetto: Aircell/asp-kernel

int omap2_clksel_set_rate(struct clk *clk, unsigned long rate)
{
	u32 v, field_val, validrate, new_div = 0;

	if (!clk->clksel_mask)
		return -EINVAL;

	validrate = omap2_clksel_round_rate_div(clk, rate, &new_div);
	if (validrate != rate)
		return -EINVAL;

	field_val = omap2_divisor_to_clksel(clk, new_div);
	if (field_val == ~0)
		return -EINVAL;

	v = __raw_readl(clk->clksel_reg);
	v &= ~clk->clksel_mask;
	v |= field_val << __ffs(clk->clksel_mask);
	__raw_writel(v, clk->clksel_reg);
	v = __raw_readl(clk->clksel_reg); /* OCP barrier */

	clk->rate = clk->parent->rate / new_div;

	_omap2xxx_clk_commit(clk);

	return 0;
}