OMAP1 / PM: Use generic clock manipulation routines for runtime PM

#ifdef CONFIG_PM_RUNTIME

static int omap1_pm_runtime_suspend(struct device *dev)

{

	struct clk *iclk, *fclk;

	int ret = 0;

	int ret;

	dev_dbg(dev, "%s\n", __func__);

	ret = pm_generic_runtime_suspend(dev);

	if (ret)

		return ret;

	fclk = clk_get(dev, "fck");

	if (!IS_ERR(fclk)) {

		clk_disable(fclk);

		clk_put(fclk);

	}

	iclk = clk_get(dev, "ick");

	if (!IS_ERR(iclk)) {

		clk_disable(iclk);

		clk_put(iclk);

	ret = pm_runtime_clk_suspend(dev);

	if (ret) {

		pm_generic_runtime_resume(dev);

		return ret;

	}

	return 0;

};

}

static int omap1_pm_runtime_resume(struct device *dev)

{

	struct clk *iclk, *fclk;

	dev_dbg(dev, "%s\n", __func__);

	iclk = clk_get(dev, "ick");

	if (!IS_ERR(iclk)) {

		clk_enable(iclk);

		clk_put(iclk);

	pm_runtime_clk_resume(dev);

	return pm_generic_runtime_resume(dev);

}

	fclk = clk_get(dev, "fck");

	if (!IS_ERR(fclk)) {

		clk_enable(fclk);

		clk_put(fclk);

	}

static struct dev_power_domain default_power_domain = {

	.ops = {

		.runtime_suspend = omap1_pm_runtime_suspend,

		.runtime_resume = omap1_pm_runtime_resume,

		USE_PLATFORM_PM_SLEEP_OPS

	},

};

	return pm_generic_runtime_resume(dev);

static struct pm_clk_notifier_block platform_bus_notifier = {

	.pwr_domain = &default_power_domain,

	.con_ids = { "ick", "fck", NULL, },

};

static int __init omap1_pm_runtime_init(void)

{

	const struct dev_pm_ops *pm;

	struct dev_pm_ops *omap_pm;

	if (!cpu_class_is_omap1())

		return -ENODEV;

	pm = platform_bus_get_pm_ops();

	if (!pm) {

		pr_err("%s: unable to get dev_pm_ops from platform_bus\n",

			__func__);

		return -ENODEV;

	}

	omap_pm = kmemdup(pm, sizeof(struct dev_pm_ops), GFP_KERNEL);

	if (!omap_pm) {

		pr_err("%s: unable to alloc memory for new dev_pm_ops\n",

			__func__);

		return -ENOMEM;

	}

	omap_pm->runtime_suspend = omap1_pm_runtime_suspend;

	omap_pm->runtime_resume = omap1_pm_runtime_resume;

	platform_bus_set_pm_ops(omap_pm);

	pm_runtime_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);

	return 0;

}