linux-kernel - [PATCH 16/22] Input: rb532_button - switch to using polled mode of input devices

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Date:   Thu, 17 Oct 2019 13:42:10 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     linux-input@...r.kernel.org
Cc:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Brian Masney <masneyb@...tation.org>,
        Luca Weiss <luca@...tu.xyz>,
        Maximilian Luz <luzmaximilian@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 16/22] Input: rb532_button - switch to using polled mode of input devices

We have added polled mode to the normal input devices with the intent of
retiring input_polled_dev. This converts rb532_button driver to use
the polling mode of standard input devices and removes dependency on
INPUT_POLLDEV.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---

 drivers/input/misc/Kconfig        |  1 -
 drivers/input/misc/rb532_button.c | 32 ++++++++++++++++---------------
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index c27a9ee4ef9a..102e993bbd6b 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -633,7 +633,6 @@ config INPUT_RB532_BUTTON
 	tristate "Mikrotik Routerboard 532 button interface"
 	depends on MIKROTIK_RB532
 	depends on GPIOLIB
-	select INPUT_POLLDEV
 	help
 	  Say Y here if you want support for the S1 button built into
 	  Mikrotik's Routerboard 532.
diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
index 3c43024f4527..190a80e1e2c1 100644
--- a/drivers/input/misc/rb532_button.c
+++ b/drivers/input/misc/rb532_button.c
@@ -5,7 +5,7 @@
  * Copyright (C) 2009  Phil Sutter <n0-1@...ewrt.org>
  */
 
-#include <linux/input-polldev.h>
+#include <linux/input.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
@@ -46,32 +46,34 @@ static bool rb532_button_pressed(void)
 	return !val;
 }
 
-static void rb532_button_poll(struct input_polled_dev *poll_dev)
+static void rb532_button_poll(struct input_dev *input)
 {
-	input_report_key(poll_dev->input, RB532_BTN_KSYM,
-			 rb532_button_pressed());
-	input_sync(poll_dev->input);
+	input_report_key(input, RB532_BTN_KSYM, rb532_button_pressed());
+	input_sync(input);
 }
 
 static int rb532_button_probe(struct platform_device *pdev)
 {
-	struct input_polled_dev *poll_dev;
+	struct input_dev *input;
 	int error;
 
-	poll_dev = devm_input_allocate_polled_device(&pdev->dev);
-	if (!poll_dev)
+	input = devm_input_allocate_device(&pdev->dev);
+	if (!input)
 		return -ENOMEM;
 
-	poll_dev->poll = rb532_button_poll;
-	poll_dev->poll_interval = RB532_BTN_RATE;
+	input->name = "rb532 button";
+	input->phys = "rb532/button0";
+	input->id.bustype = BUS_HOST;
 
-	poll_dev->input->name = "rb532 button";
-	poll_dev->input->phys = "rb532/button0";
-	poll_dev->input->id.bustype = BUS_HOST;
+	input_set_capability(input, EV_KEY, RB532_BTN_KSYM);
 
-	input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
+	error = input_setup_polling(input, rb532_button_poll);
+	if (error)
+		return error;
+
+	input_set_poll_interval(input, RB532_BTN_RATE);
 
-	error = input_register_polled_device(poll_dev);
+	error = input_register_device(input);
 	if (error)
 		return error;
 
-- 
2.23.0.866.gb869b98d4c-goog