staging: nvec: cleanup powermanagement callbacks

Simplify powermanagement initialization by using pm_ops macro.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/nvec/nvec.c

@@ -700,12 +700,14 @@ static void tegra_init_i2c_slave(struct nvec_chip *nvec)
 	clk_disable(nvec->i2c_clk);
 }
 
+#ifdef CONFIG_PM_SLEEP
 static void nvec_disable_i2c_slave(struct nvec_chip *nvec)
 {
 	disable_irq(nvec->irq);
 	writel(I2C_SL_NEWSL | I2C_SL_NACK, nvec->base + I2C_SL_CNFG);
 	clk_disable(nvec->i2c_clk);
 }
+#endif
 
 static void nvec_power_off(void)
 {
@@ -862,10 +864,10 @@ static int __devexit tegra_nvec_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-
-static int tegra_nvec_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int nvec_suspend(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	struct nvec_chip *nvec = platform_get_drvdata(pdev);
 	struct nvec_msg *msg;
 
@@ -882,8 +884,9 @@ static int tegra_nvec_suspend(struct platform_device *pdev, pm_message_t state)
 	return 0;
 }
 
-static int tegra_nvec_resume(struct platform_device *pdev)
+static int nvec_resume(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	struct nvec_chip *nvec = platform_get_drvdata(pdev);
 
 	dev_dbg(nvec->dev, "resuming\n");
@@ -892,12 +895,10 @@ static int tegra_nvec_resume(struct platform_device *pdev)
 
 	return 0;
 }
-
-#else
-#define tegra_nvec_suspend NULL
-#define tegra_nvec_resume NULL
 #endif
 
+static const SIMPLE_DEV_PM_OPS(nvec_pm_ops, nvec_suspend, nvec_resume);
+
 /* Match table for of_platform binding */
 static const struct of_device_id nvidia_nvec_of_match[] __devinitconst = {
 	{ .compatible = "nvidia,nvec", },
@@ -908,11 +909,10 @@ MODULE_DEVICE_TABLE(of, nvidia_nvec_of_match);
 static struct platform_driver nvec_device_driver = {
 	.probe   = tegra_nvec_probe,
 	.remove  = __devexit_p(tegra_nvec_remove),
-	.suspend = tegra_nvec_suspend,
-	.resume  = tegra_nvec_resume,
 	.driver  = {
 		.name = "nvec",
 		.owner = THIS_MODULE,
+		.pm = &nvec_pm_ops,
 		.of_match_table = nvidia_nvec_of_match,
 	}
 };

drivers/staging/nvec/nvec_ps2.c

@@ -123,8 +123,10 @@ static int __devinit nvec_mouse_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int nvec_mouse_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int nvec_mouse_suspend(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
 
 	/* disable mouse */
@@ -136,8 +138,9 @@ static int nvec_mouse_suspend(struct platform_device *pdev, pm_message_t state)
 	return 0;
 }
 
-static int nvec_mouse_resume(struct platform_device *pdev)
+static int nvec_mouse_resume(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);
 
 	ps2_startstreaming(ps2_dev.ser_dev);
@@ -147,14 +150,17 @@ static int nvec_mouse_resume(struct platform_device *pdev)
 
 	return 0;
 }
+#endif
+
+static const SIMPLE_DEV_PM_OPS(nvec_mouse_pm_ops, nvec_mouse_suspend,
+				nvec_mouse_resume);
 
 static struct platform_driver nvec_mouse_driver = {
 	.probe  = nvec_mouse_probe,
-	.suspend = nvec_mouse_suspend,
-	.resume = nvec_mouse_resume,
 	.driver = {
 		.name = "nvec-mouse",
 		.owner = THIS_MODULE,
+		.pm = &nvec_mouse_pm_ops,
 	},
 };