Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull input subsystem updates from Dmitry Torokhov:
 "- we finally merged driver for USB version of Synaptics touchpads
    (I guess most commonly found in IBM/Lenovo keyboard/touchpad combo);

   - a bunch of new drivers for embedded platforms (Cypress
     touchscreens, DA9052 OnKey, MAX8997-haptic, Ilitek ILI210x
     touchscreens, TI touchscreen);

   - input core allows clients to specify desired clock source for
     timestamps on input events (EVIOCSCLOCKID ioctl);

   - input core allows querying state of all MT slots for given event
     code via EVIOCGMTSLOTS ioctl;

   - various driver fixes and improvements."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
  Input: ili210x - add support for Ilitek ILI210x based touchscreens
  Input: altera_ps2 - use of_match_ptr()
  Input: synaptics_usb - switch to module_usb_driver()
  Input: convert I2C drivers to use module_i2c_driver()
  Input: convert SPI drivers to use module_spi_driver()
  Input: omap4-keypad - move platform_data to <linux/platform_data>
  Input: kxtj9 - who_am_i check value and initial data rate fixes
  Input: add driver support for MAX8997-haptic
  Input: tegra-kbc - revise device tree support
  Input: of_keymap - add device tree bindings for simple key matrices
  Input: wacom - fix physical size calculation for 3rd-gen Bamboo
  Input: twl4030-vibra - really switch from #if to #ifdef
  Input: hp680_ts_input - ensure arguments to request_irq and free_irq are compatible
  Input: max8925_onkey - avoid accessing input device too early
  Input: max8925_onkey - allow to be used as a wakeup source
  Input: atmel-wm97xx - convert to dev_pm_ops
  Input: atmel-wm97xx - set driver owner
  Input: add cyttsp touchscreen maintainer entry
  Input: cyttsp - remove useless checks in cyttsp_probe()
  Input: usbtouchscreen - add support for Data Modul EasyTouch TP 72037
  ...

3 files changed, 91 insertions, 74 deletions

diff --git a/drivers/input/serio/altera_ps2.c b/drivers/input/serio/altera_ps2.c
index 35864c6130b..cc11f4efe11 100644
--- a/drivers/input/serio/altera_ps2.c
+++ b/drivers/input/serio/altera_ps2.c
@@ -180,8 +180,6 @@ static const struct of_device_id altera_ps2_match[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, altera_ps2_match);
-#else /* CONFIG_OF */
-#define altera_ps2_match NULL
 #endif /* CONFIG_OF */
 
 /*
@@ -193,7 +191,7 @@ static struct platform_driver altera_ps2_driver = {
 	.driver	= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
-		.of_match_table = altera_ps2_match,
+		.of_match_table = of_match_ptr(altera_ps2_match),
 	},
 };
 module_platform_driver(altera_ps2_driver);
diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c
index 95280f9207e..36e799c31f5 100644
--- a/drivers/input/serio/at32psif.c
+++ b/drivers/input/serio/at32psif.c
@@ -98,9 +98,9 @@ struct psif {
 	struct serio		*io;
 	void __iomem		*regs;
 	unsigned int		irq;
-	unsigned int		open;
 	/* Prevent concurrent writes to PSIF THR. */
 	spinlock_t		lock;
+	bool			open;
 };
 
 static irqreturn_t psif_interrupt(int irq, void *_ptr)
@@ -164,7 +164,7 @@ static int psif_open(struct serio *io)
 	psif_writel(psif, CR, PSIF_BIT(CR_TXEN) | PSIF_BIT(CR_RXEN));
 	psif_writel(psif, IER, PSIF_BIT(RXRDY));
 
-	psif->open = 1;
+	psif->open = true;
 out:
 	return retval;
 }
@@ -173,7 +173,7 @@ static void psif_close(struct serio *io)
 {
 	struct psif *psif = io->port_data;
 
-	psif->open = 0;
+	psif->open = false;
 
 	psif_writel(psif, IDR, ~0UL);
 	psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS));
@@ -319,9 +319,10 @@ static int __exit psif_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int psif_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int psif_suspend(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	struct psif *psif = platform_get_drvdata(pdev);
 
 	if (psif->open) {
@@ -332,8 +333,9 @@ static int psif_suspend(struct platform_device *pdev, pm_message_t state)
 	return 0;
 }
 
-static int psif_resume(struct platform_device *pdev)
+static int psif_resume(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
 	struct psif *psif = platform_get_drvdata(pdev);
 
 	if (psif->open) {
@@ -344,19 +346,17 @@ static int psif_resume(struct platform_device *pdev)
 
 	return 0;
 }
-#else
-#define psif_suspend	NULL
-#define psif_resume	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(psif_pm_ops, psif_suspend, psif_resume);
+
 static struct platform_driver psif_driver = {
 	.remove		= __exit_p(psif_remove),
 	.driver		= {
 		.name	= "atmel_psif",
 		.owner	= THIS_MODULE,
+		.pm	= &psif_pm_ops,
 	},
-	.suspend	= psif_suspend,
-	.resume		= psif_resume,
 };
 
 static int __init psif_init(void)
diff --git a/drivers/input/serio/q40kbd.c b/drivers/input/serio/q40kbd.c
index 5eb84b3b67f..0c0df7f7380 100644
--- a/drivers/input/serio/q40kbd.c
+++ b/drivers/input/serio/q40kbd.c
@@ -44,26 +44,31 @@
 #include <asm/irq.h>
 #include <asm/q40ints.h>
 
+#define DRV_NAME	"q40kbd"
+
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("Q40 PS/2 keyboard controller driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
 
-static DEFINE_SPINLOCK(q40kbd_lock);
-static struct serio *q40kbd_port;
-static struct platform_device *q40kbd_device;
+struct q40kbd {
+	struct serio *port;
+	spinlock_t lock;
+};
 
 static irqreturn_t q40kbd_interrupt(int irq, void *dev_id)
 {
+	struct q40kbd *q40kbd = dev_id;
 	unsigned long flags;
 
-	spin_lock_irqsave(&q40kbd_lock, flags);
+	spin_lock_irqsave(&q40kbd->lock, flags);
 
 	if (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
-		serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0);
+		serio_interrupt(q40kbd->port, master_inb(KEYCODE_REG), 0);
 
 	master_outb(-1, KEYBOARD_UNLOCK_REG);
 
-	spin_unlock_irqrestore(&q40kbd_lock, flags);
+	spin_unlock_irqrestore(&q40kbd->lock, flags);
 
 	return IRQ_HANDLED;
 }
@@ -72,17 +77,23 @@ static irqreturn_t q40kbd_interrupt(int irq, void *dev_id)
  * q40kbd_flush() flushes all data that may be in the keyboard buffers
  */
 
-static void q40kbd_flush(void)
+static void q40kbd_flush(struct q40kbd *q40kbd)
 {
 	int maxread = 100;
 	unsigned long flags;
 
-	spin_lock_irqsave(&q40kbd_lock, flags);
+	spin_lock_irqsave(&q40kbd->lock, flags);
 
 	while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
 		master_inb(KEYCODE_REG);
 
-	spin_unlock_irqrestore(&q40kbd_lock, flags);
+	spin_unlock_irqrestore(&q40kbd->lock, flags);
+}
+
+static void q40kbd_stop(void)
+{
+	master_outb(0, KEY_IRQ_ENABLE_REG);
+	master_outb(-1, KEYBOARD_UNLOCK_REG);
 }
 
 /*
@@ -92,12 +103,9 @@ static void q40kbd_flush(void)
 
 static int q40kbd_open(struct serio *port)
 {
-	q40kbd_flush();
+	struct q40kbd *q40kbd = port->port_data;
 
-	if (request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL)) {
-		printk(KERN_ERR "q40kbd.c: Can't get irq %d.\n", Q40_IRQ_KEYBOARD);
-		return -EBUSY;
-	}
+	q40kbd_flush(q40kbd);
 
 	/* off we go */
 	master_outb(-1, KEYBOARD_UNLOCK_REG);
@@ -108,36 +116,72 @@ static int q40kbd_open(struct serio *port)
 
 static void q40kbd_close(struct serio *port)
 {
-	master_outb(0, KEY_IRQ_ENABLE_REG);
-	master_outb(-1, KEYBOARD_UNLOCK_REG);
-	free_irq(Q40_IRQ_KEYBOARD, NULL);
+	struct q40kbd *q40kbd = port->port_data;
 
-	q40kbd_flush();
+	q40kbd_stop();
+	q40kbd_flush(q40kbd);
 }
 
-static int __devinit q40kbd_probe(struct platform_device *dev)
+static int __devinit q40kbd_probe(struct platform_device *pdev)
 {
-	q40kbd_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
-	if (!q40kbd_port)
-		return -ENOMEM;
-
-	q40kbd_port->id.type	= SERIO_8042;
-	q40kbd_port->open	= q40kbd_open;
-	q40kbd_port->close	= q40kbd_close;
-	q40kbd_port->dev.parent	= &dev->dev;
-	strlcpy(q40kbd_port->name, "Q40 Kbd Port", sizeof(q40kbd_port->name));
-	strlcpy(q40kbd_port->phys, "Q40", sizeof(q40kbd_port->phys));
-
-	serio_register_port(q40kbd_port);
+	struct q40kbd *q40kbd;
+	struct serio *port;
+	int error;
+
+	q40kbd = kzalloc(sizeof(struct q40kbd), GFP_KERNEL);
+	port = kzalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!q40kbd || !port) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	q40kbd->port = port;
+	spin_lock_init(&q40kbd->lock);
+
+	port->id.type = SERIO_8042;
+	port->open = q40kbd_open;
+	port->close = q40kbd_close;
+	port->port_data = q40kbd;
+	port->dev.parent = &pdev->dev;
+	strlcpy(port->name, "Q40 Kbd Port", sizeof(port->name));
+	strlcpy(port->phys, "Q40", sizeof(port->phys));
+
+	q40kbd_stop();
+
+	error = request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0,
+			    DRV_NAME, q40kbd);
+	if (error) {
+		dev_err(&pdev->dev, "Can't get irq %d.\n", Q40_IRQ_KEYBOARD);
+		goto err_free_mem;
+	}
+
+	serio_register_port(q40kbd->port);
+
+	platform_set_drvdata(pdev, q40kbd);
 	printk(KERN_INFO "serio: Q40 kbd registered\n");
 
 	return 0;
+
+err_free_mem:
+	kfree(port);
+	kfree(q40kbd);
+	return error;
 }
 
-static int __devexit q40kbd_remove(struct platform_device *dev)
+static int __devexit q40kbd_remove(struct platform_device *pdev)
 {
-	serio_unregister_port(q40kbd_port);
-
+	struct q40kbd *q40kbd = platform_get_drvdata(pdev);
+
+	/*
+	 * q40kbd_close() will be called as part of unregistering
+	 * and will ensure that IRQ is turned off, so it is safe
+	 * to unregister port first and free IRQ later.
+	 */
+	serio_unregister_port(q40kbd->port);
+	free_irq(Q40_IRQ_KEYBOARD, q40kbd);
+	kfree(q40kbd);
+
+	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
@@ -146,41 +190,16 @@ static struct platform_driver q40kbd_driver = {
 		.name	= "q40kbd",
 		.owner	= THIS_MODULE,
 	},
-	.probe		= q40kbd_probe,
 	.remove		= __devexit_p(q40kbd_remove),
 };
 
 static int __init q40kbd_init(void)
 {
-	int error;
-
-	if (!MACH_IS_Q40)
-		return -ENODEV;
-
-	error = platform_driver_register(&q40kbd_driver);
-	if (error)
-		return error;
-
-	q40kbd_device = platform_device_alloc("q40kbd", -1);
-	if (!q40kbd_device)
-		goto err_unregister_driver;
-
-	error = platform_device_add(q40kbd_device);
-	if (error)
-		goto err_free_device;
-
-	return 0;
-
- err_free_device:
-	platform_device_put(q40kbd_device);
- err_unregister_driver:
-	platform_driver_unregister(&q40kbd_driver);
-	return error;
+	return platform_driver_probe(&q40kbd_driver, q40kbd_probe);
 }
 
 static void __exit q40kbd_exit(void)
 {
-	platform_device_unregister(q40kbd_device);
 	platform_driver_unregister(&q40kbd_driver);
 }