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stdio: Tidy up use of CONFIG_SYS_DEVICE_NULLDEV

Now that this is in Kconfig we can move the logic at the top of the file
to Kconfig, and use if() instead of #if. Update the file with these
changes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass 3 years ago
parent
commit
3ca0609adc
2 changed files with 11 additions and 20 deletions
  1. 1 0
      common/Kconfig
  2. 10 20
      common/stdio.c

+ 1 - 0
common/Kconfig

@@ -646,6 +646,7 @@ config SPL_SYS_STDIO_DEREGISTER
 
 config SYS_DEVICE_NULLDEV
 	bool "Enable a null device for stdio"
+	default y if SPLASH_SCREEN || SYS_STDIO_DEREGISTER
 	help
 	  Enable creation of a "nulldev" stdio device. This allows silent
 	  operation of the console by setting stdout to "nulldev". Enable

+ 10 - 20
common/stdio.c

@@ -31,15 +31,6 @@ static struct stdio_dev devs;
 struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL };
 char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
 
-#if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
-#define	CONFIG_SYS_DEVICE_NULLDEV	1
-#endif
-
-#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
-#define	CONFIG_SYS_DEVICE_NULLDEV	1
-#endif
-
-#ifdef CONFIG_SYS_DEVICE_NULLDEV
 static void nulldev_putc(struct stdio_dev *dev, const char c)
 {
 	/* nulldev is empty! */
@@ -55,7 +46,6 @@ static int nulldev_input(struct stdio_dev *dev)
 	/* nulldev is empty! */
 	return 0;
 }
-#endif
 
 static void stdio_serial_putc(struct stdio_dev *dev, const char c)
 {
@@ -96,18 +86,18 @@ static void drv_system_init (void)
 	dev.tstc = stdio_serial_tstc;
 	stdio_register (&dev);
 
-#ifdef CONFIG_SYS_DEVICE_NULLDEV
-	memset (&dev, 0, sizeof (dev));
+	if (CONFIG_IS_ENABLED(SYS_DEVICE_NULLDEV)) {
+		memset(&dev, '\0', sizeof(dev));
 
-	strcpy (dev.name, "nulldev");
-	dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
-	dev.putc = nulldev_putc;
-	dev.puts = nulldev_puts;
-	dev.getc = nulldev_input;
-	dev.tstc = nulldev_input;
+		strcpy(dev.name, "nulldev");
+		dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
+		dev.putc = nulldev_putc;
+		dev.puts = nulldev_puts;
+		dev.getc = nulldev_input;
+		dev.tstc = nulldev_input;
 
-	stdio_register (&dev);
-#endif
+		stdio_register(&dev);
+	}
 }
 
 /**************************************************************************