[PATCH 2/5] staging: nvec: cleanup driver registration

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This patch simplifies code by using the module_platform_driver
and SIMPLE_DEV_PM_OPS macros.

Signed-off-by: Marc Dietrich <marvin24@xxxxxx>
---
 drivers/staging/nvec/nvec.c      |   27 +++++++++++----------------
 drivers/staging/nvec/nvec_kbd.c  |    7 +------
 drivers/staging/nvec/nvec_leds.c |   14 +-------------
 drivers/staging/nvec/nvec_ps2.c  |   21 +++++++++++----------
 4 files changed, 24 insertions(+), 45 deletions(-)

diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 485096a..9943598 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -698,12 +698,14 @@ 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)
 {
@@ -859,10 +861,10 @@ 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;
 
@@ -879,8 +881,9 @@ 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");
@@ -889,12 +892,10 @@ 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", },
@@ -905,21 +906,15 @@ 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,
 	}
 };
 
-static int __init tegra_nvec_init(void)
-{
-	return platform_driver_register(&nvec_device_driver);
-}
-
-module_init(tegra_nvec_init);
+module_platform_driver(nvec_device_driver);
 
 MODULE_ALIAS("platform:nvec");
 MODULE_DESCRIPTION("NVIDIA compliant embedded controller interface");
diff --git a/drivers/staging/nvec/nvec_kbd.c b/drivers/staging/nvec/nvec_kbd.c
index a4ce5a7..36ef6a6 100644
--- a/drivers/staging/nvec/nvec_kbd.c
+++ b/drivers/staging/nvec/nvec_kbd.c
@@ -167,12 +167,7 @@ static struct platform_driver nvec_kbd_driver = {
 	},
 };
 
-static int __init nvec_kbd_init(void)
-{
-	return platform_driver_register(&nvec_kbd_driver);
-}
-
-module_init(nvec_kbd_init);
+module_platform_driver(nvec_kbd_driver);
 
 MODULE_AUTHOR("Marc Dietrich <marvin24@xxxxxx>");
 MODULE_DESCRIPTION("NVEC keyboard driver");
diff --git a/drivers/staging/nvec/nvec_leds.c b/drivers/staging/nvec/nvec_leds.c
index 91947fb..53cb571 100644
--- a/drivers/staging/nvec/nvec_leds.c
+++ b/drivers/staging/nvec/nvec_leds.c
@@ -90,19 +90,7 @@ static struct platform_driver nvec_led_driver = {
 	},
 };
 
-static int __init nvec_led_init(void)
-{
-	return platform_driver_register(&nvec_led_driver);
-}
-
-module_init(nvec_led_init);
-
-static void __exit nvec_led_exit(void)
-{
-	platform_driver_unregister(&nvec_led_driver);
-}
-
-module_exit(nvec_led_exit);
+module_platform_driver(nvec_led_driver);
 
 MODULE_AUTHOR("Ilya Petrov <ilya.muromec@xxxxxxxxx>");
 MODULE_DESCRIPTION("Tegra NVEC LED driver");
diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index d6ceff9..8b66cc0 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/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);
@@ -147,23 +150,21 @@ 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",
+		.pm = &nvec_mouse_pm_ops,
 		.owner = THIS_MODULE,
 	},
 };
 
-static int __init nvec_mouse_init(void)
-{
-	return platform_driver_register(&nvec_mouse_driver);
-}
-
-module_init(nvec_mouse_init);
+module_platform_driver(nvec_mouse_driver);
 
 MODULE_DESCRIPTION("NVEC mouse driver");
 MODULE_AUTHOR("Marc Dietrich <marvin24@xxxxxx>");
-- 
1.7.9.5

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