gpio: mockup: use KBUILD_MODNAME

Drop the definition for the driver name. Let's use KBUILD_MODNAME for
the log format and use the "gpio-mockup" value directly in the only
place where it's relevant: in the name of the device.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/gpio/gpio-mockup.c

@@ -21,7 +21,6 @@
 
 #include "gpiolib.h"
 
-#define GPIO_MOCKUP_NAME	"gpio-mockup"
 #define GPIO_MOCKUP_MAX_GC	10
 /*
  * We're storing two values per chip: the GPIO base and the number
@@ -31,7 +30,7 @@
 /* Maximum of three properties + the sentinel. */
 #define GPIO_MOCKUP_MAX_PROP	4
 
-#define gpio_mockup_err(...)	pr_err(GPIO_MOCKUP_NAME ": " __VA_ARGS__)
+#define gpio_mockup_err(...)	pr_err(KBUILD_MODNAME ": " __VA_ARGS__)
 
 /*
  * struct gpio_pin_status - structure describing a GPIO status
@@ -500,7 +499,7 @@ static int gpio_mockup_probe(struct platform_device *pdev)
 
 static struct platform_driver gpio_mockup_driver = {
 	.driver = {
-		.name = GPIO_MOCKUP_NAME,
+		.name = "gpio-mockup",
 	},
 	.probe = gpio_mockup_probe,
 };
@@ -572,7 +571,7 @@ static int __init gpio_mockup_init(void)
 			properties[prop++] = PROPERTY_ENTRY_BOOL(
 						"named-gpio-lines");
 
-		pdevinfo.name = GPIO_MOCKUP_NAME;
+		pdevinfo.name = "gpio-mockup";
 		pdevinfo.id = i;
 		pdevinfo.properties = properties;