PM / devfreq: tegra: remove operating-points

As the DT bindings don't have an operating-points property any more,
build the OPP table from the frequencies supported by the EMC clock.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

drivers/devfreq/tegra-devfreq.c

@@ -618,6 +618,7 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	struct tegra_devfreq_device *dev;
 	struct resource *res;
 	unsigned int i;
+	unsigned long rate;
 	int irq;
 	int err;
 
@@ -649,12 +650,6 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 		return PTR_ERR(tegra->emc_clock);
 	}
 
-	err = of_init_opp_table(&pdev->dev);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to init operating point table\n");
-		return err;
-	}
-
 	clk_set_rate(tegra->emc_clock, ULONG_MAX);
 
 	tegra->rate_change_nb.notifier_call = tegra_actmon_rate_notify_cb;
@@ -691,6 +686,11 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 		tegra_actmon_configure_device(tegra, dev);
 	}
 
+	for (rate = 0; rate <= tegra->max_freq * KHZ; rate++) {
+		rate = clk_round_rate(tegra->emc_clock, rate);
+		dev_pm_opp_add(&pdev->dev, rate, 0);
+	}
+
 	irq = platform_get_irq(pdev, 0);
 	if (irq <= 0) {
 		dev_err(&pdev->dev, "Failed to get IRQ\n");