macintosh/ams-input: switch to using input device polling mode

Now that instances of input_dev support polling mode natively,
we no longer need to create input_polled_dev instance.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191002214854.GA114387@dtor-ws

drivers/macintosh/Kconfig

@@ -247,7 +247,6 @@ config PMAC_RACKMETER
 config SENSORS_AMS
 	tristate "Apple Motion Sensor driver"
 	depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C)
-	select INPUT_POLLDEV
 	help
 	  Support for the motion sensor included in PowerBooks. Includes
 	  implementations for PMU and I2C.

drivers/macintosh/ams/ams-input.c

@@ -25,9 +25,8 @@ MODULE_PARM_DESC(invert, "Invert input data on X and Y axis");
 
 static DEFINE_MUTEX(ams_input_mutex);
 
-static void ams_idev_poll(struct input_polled_dev *dev)
+static void ams_idev_poll(struct input_dev *idev)
 {
-	struct input_dev *idev = dev->input;
 	s8 x, y, z;
 
 	mutex_lock(&ams_info.lock);
@@ -59,14 +58,10 @@ static int ams_input_enable(void)
 	ams_info.ycalib = y;
 	ams_info.zcalib = z;
 
-	ams_info.idev = input_allocate_polled_device();
-	if (!ams_info.idev)
+	input = input_allocate_device();
+	if (!input)
 		return -ENOMEM;
 
-	ams_info.idev->poll = ams_idev_poll;
-	ams_info.idev->poll_interval = 25;
-
-	input = ams_info.idev->input;
 	input->name = "Apple Motion Sensor";
 	input->id.bustype = ams_info.bustype;
 	input->id.vendor = 0;
@@ -75,28 +70,32 @@ static int ams_input_enable(void)
 	input_set_abs_params(input, ABS_X, -50, 50, 3, 0);
 	input_set_abs_params(input, ABS_Y, -50, 50, 3, 0);
 	input_set_abs_params(input, ABS_Z, -50, 50, 3, 0);
+	input_set_capability(input, EV_KEY, BTN_TOUCH);
 
-	set_bit(EV_ABS, input->evbit);
-	set_bit(EV_KEY, input->evbit);
-	set_bit(BTN_TOUCH, input->keybit);
+	error = input_setup_polling(input, ams_idev_poll);
+	if (error)
+		goto err_free_input;
 
-	error = input_register_polled_device(ams_info.idev);
-	if (error) {
-		input_free_polled_device(ams_info.idev);
-		ams_info.idev = NULL;
-		return error;
-	}
+	input_set_poll_interval(input, 25);
 
+	error = input_register_device(input);
+	if (error)
+		goto err_free_input;
+
+	ams_info.idev = input;
 	joystick = true;
 
 	return 0;
+
+err_free_input:
+	input_free_device(input);
+	return error;
 }
 
 static void ams_input_disable(void)
 {
 	if (ams_info.idev) {
-		input_unregister_polled_device(ams_info.idev);
-		input_free_polled_device(ams_info.idev);
+		input_unregister_device(ams_info.idev);
 		ams_info.idev = NULL;
 	}
 

drivers/macintosh/ams/ams.h

 /* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/i2c.h>
-#include <linux/input-polldev.h>
+#include <linux/input.h>
 #include <linux/kthread.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
@@ -51,7 +51,7 @@ struct ams {
 #endif
 
 	/* Joystick emulation */
-	struct input_polled_dev *idev;
+	struct input_dev *idev;
 	__u16 bustype;
 
 	/* calibrated null values */