clk: ti: add a usecount for autoidle

static LIST_HEAD(autoidle_clks);

/*

 * we have some non-atomic read/write

 * operations behind it, so lets

 * take one lock for handling autoidle

 * of all clocks

 */

static DEFINE_SPINLOCK(autoidle_spinlock);

static int _omap2_clk_deny_idle(struct clk_hw_omap *clk)

{

	if (clk->ops && clk->ops->deny_idle)

	if (clk->ops && clk->ops->deny_idle) {

		unsigned long irqflags;

		spin_lock_irqsave(&autoidle_spinlock, irqflags);

		clk->autoidle_count++;

		if (clk->autoidle_count == 1)

			clk->ops->deny_idle(clk);

		spin_unlock_irqrestore(&autoidle_spinlock, irqflags);

	}

	return 0;

}

static int _omap2_clk_allow_idle(struct clk_hw_omap *clk)

{

	if (clk->ops && clk->ops->allow_idle)

	if (clk->ops && clk->ops->allow_idle) {

		unsigned long irqflags;

		spin_lock_irqsave(&autoidle_spinlock, irqflags);

		clk->autoidle_count--;

		if (clk->autoidle_count == 0)

			clk->ops->allow_idle(clk);

		spin_unlock_irqrestore(&autoidle_spinlock, irqflags);

	}

	return 0;

}

	struct clockdomain	*clkdm;

	const struct clk_hw_omap_ops	*ops;

	u32			context;

	int			autoidle_count;

};

/*