i2c: tegra: Runtime PM always available on Tegra

The runtime PM is guaranteed to be always available on Tegra after commit
40b2bb1b13 ("ARM: tegra: enforce PM requirement"). Hence let's remove
all the RPM-availability checking and handling from the code.

Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-tegra.c

@@ -1775,18 +1775,10 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 	if (!i2c_dev->is_vi)
 		pm_runtime_irq_safe(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
-	if (!pm_runtime_enabled(&pdev->dev)) {
-		ret = tegra_i2c_runtime_resume(&pdev->dev);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "runtime resume failed\n");
-			goto unprepare_div_clk;
-		}
-	} else {
-		ret = pm_runtime_get_sync(i2c_dev->dev);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "runtime resume failed\n");
-			goto put_rpm;
-		}
+	ret = pm_runtime_get_sync(i2c_dev->dev);
+	if (ret < 0) {
+		dev_err(dev, "runtime resume failed\n");
+		goto put_rpm;
 	}
 
 	if (i2c_dev->is_multimaster_mode) {
@@ -1845,15 +1837,8 @@ disable_div_clk:
 		clk_disable(i2c_dev->div_clk);
 
 put_rpm:
-	if (pm_runtime_enabled(&pdev->dev))
-		pm_runtime_put_sync(&pdev->dev);
-	else
-		tegra_i2c_runtime_suspend(&pdev->dev);
-
-	if (pm_runtime_enabled(&pdev->dev))
-		pm_runtime_disable(&pdev->dev);
-
-unprepare_div_clk:
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 	clk_unprepare(i2c_dev->div_clk);
 
 unprepare_slow_clk:
@@ -1875,8 +1860,6 @@ static int tegra_i2c_remove(struct platform_device *pdev)
 		clk_disable(i2c_dev->div_clk);
 
 	pm_runtime_disable(&pdev->dev);
-	if (!pm_runtime_status_suspended(&pdev->dev))
-		tegra_i2c_runtime_suspend(&pdev->dev);
 
 	clk_unprepare(i2c_dev->div_clk);
 	clk_unprepare(i2c_dev->slow_clk);