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path: root/drivers/input/keyboard/gpio_keys_polled.c
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Diffstat (limited to 'drivers/input/keyboard/gpio_keys_polled.c')
-rw-r--r--drivers/input/keyboard/gpio_keys_polled.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index edc7262103b9..465eecfa6b3f 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for buttons on GPIO lines not capable of generating interrupts
*
@@ -9,10 +10,6 @@
*
* also was based on: /drivers/input/keyboard/gpio_keys.c
* Copyright 2005 Phil Blundell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/kernel.h>
@@ -168,6 +165,8 @@ gpio_keys_polled_get_devtree_pdata(struct device *dev)
pdata->rep = device_property_present(dev, "autorepeat");
device_property_read_u32(dev, "poll-interval", &pdata->poll_interval);
+ device_property_read_string(dev, "label", &pdata->name);
+
device_for_each_child_node(dev, child) {
if (fwnode_property_read_u32(child, "linux,code",
&button->code)) {
@@ -235,7 +234,6 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
struct gpio_keys_polled_dev *bdev;
struct input_polled_dev *poll_dev;
struct input_dev *input;
- size_t size;
int error;
int i;
@@ -250,9 +248,8 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
return -EINVAL;
}
- size = sizeof(struct gpio_keys_polled_dev) +
- pdata->nbuttons * sizeof(struct gpio_keys_button_data);
- bdev = devm_kzalloc(dev, size, GFP_KERNEL);
+ bdev = devm_kzalloc(dev, struct_size(bdev, data, pdata->nbuttons),
+ GFP_KERNEL);
if (!bdev) {
dev_err(dev, "no memory for private data\n");
return -ENOMEM;
@@ -272,7 +269,7 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
input = poll_dev->input;
- input->name = pdev->name;
+ input->name = pdata->name ?: pdev->name;
input->phys = DRV_NAME"/input0";
input->id.bustype = BUS_HOST;