linux-kernel - [PATCH 2/2] input: keyboard: gpio-keys-polled: skip oftree code when CONFIG

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Message-Id: <1564415994-22871-2-git-send-email-info@metux.net>
Date:   Mon, 29 Jul 2019 17:59:54 +0200
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     dmitry.torokhov@...il.com, linux-input@...r.kernel.org
Subject: [PATCH 2/2] input: keyboard: gpio-keys-polled: skip oftree code when CONFIG_OF disabled

we don't need to build in oftree probing stuff when oftree isn't
enabled at all.

changes v2: use of_match_ptr() macro instead of ifdef's

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 drivers/input/keyboard/gpio_keys_polled.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 91754de..d8123ad 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -144,6 +144,7 @@ static void gpio_keys_polled_close(struct input_polled_dev *dev)
 static struct gpio_keys_platform_data *
 gpio_keys_polled_get_devtree_pdata(struct device *dev)
 {
+#ifdef CONFIG_OF
 	struct gpio_keys_platform_data *pdata;
 	struct gpio_keys_button *button;
 	struct fwnode_handle *child;
@@ -199,6 +200,9 @@ static void gpio_keys_polled_close(struct input_polled_dev *dev)
 	}
 
 	return pdata;
+#else /* CONFIG_OF */
+	return ERR_PTR(-ENOENT);
+#endif /* CONFIG_OF */
 }
 
 static void gpio_keys_polled_set_abs_params(struct input_dev *input,
@@ -221,11 +225,13 @@ static void gpio_keys_polled_set_abs_params(struct input_dev *input,
 	input_set_abs_params(input, code, min, max, 0, 0);
 }
 
+#ifdef CONFIG_OF
 static const struct of_device_id gpio_keys_polled_of_match[] = {
 	{ .compatible = "gpio-keys-polled", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, gpio_keys_polled_of_match);
+#endif /* CONFIG_OF */
 
 static struct gpio_desc *gpio_keys_polled_get_gpiod_fwnode(
 	struct device *dev,
@@ -448,7 +454,7 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
 	.probe	= gpio_keys_polled_probe,
 	.driver	= {
 		.name	= DRV_NAME,
-		.of_match_table = gpio_keys_polled_of_match,
+		.of_match_table = of_match_ptr(gpio_keys_polled_of_match),
 	},
 };
 module_platform_driver(gpio_keys_polled_driver);
-- 
1.9.1