Exemplos de _omap2_clksel_get_src_field em C++ (Cpp)

Exemplo n.º 1

Arquivo: clock.c Projeto: Aircell/asp-kernel

int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent)
{
	u32 field_val, v, parent_div;

	if (clk->flags & CONFIG_PARTICIPANT)
		return -EINVAL;

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

	parent_div = _omap2_clksel_get_src_field(new_parent, clk, &field_val);
	if (!parent_div)
		return -EINVAL;

	/* Set new source value (previous dividers if any in effect) */
	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 */

	_omap2xxx_clk_commit(clk);

	clk_reparent(clk, new_parent);

	/* CLKSEL clocks follow their parents' rates, divided by a divisor */
	clk->rate = new_parent->rate;

	if (parent_div > 0)
		clk->rate /= parent_div;

	pr_debug("clock: set parent of %s to %s (new rate %ld)\n",
		 clk->name, clk->parent->name, clk->rate);

	return 0;
}

Exemplo n.º 2

int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent)
{
    u32 field_val, v, parent_div;

    if (clk->flags & CONFIG_PARTICIPANT)
        return -EINVAL;

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

    parent_div = _omap2_clksel_get_src_field(new_parent, clk, &field_val);
    if (!parent_div)
        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);

    _omap2xxx_clk_commit(clk);

    clk_reparent(clk, new_parent);


    clk->rate = new_parent->rate;

    if (parent_div > 0)
        clk->rate /= parent_div;

    pr_debug("clock: set parent of %s to %s (new rate %ld)\n",
             clk->name, clk->parent->name, clk->rate);

    return 0;
}