From cf41d18b72c8b79f617c59529171faf49aa74dca Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Mon, 17 Apr 2023 14:56:45 +0200
Subject: arch/parisc: Implement fb_is_primary_device() under arch/parisc

Move PARISC's implementation of fb_is_primary_device() into the
architecture directory. This the place of the declaration and
where other architectures implement this function. No functional
changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417125651.25126-14-tzimmermann@suse.de
---
 arch/parisc/video/Makefile |  3 +++
 arch/parisc/video/fbdev.c  | 27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 arch/parisc/video/Makefile
 create mode 100644 arch/parisc/video/fbdev.c

(limited to 'arch/parisc/video')

diff --git a/arch/parisc/video/Makefile b/arch/parisc/video/Makefile
new file mode 100644
index 000000000000..16a73cce4661
--- /dev/null
+++ b/arch/parisc/video/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_STI_CORE) += fbdev.o
diff --git a/arch/parisc/video/fbdev.c b/arch/parisc/video/fbdev.c
new file mode 100644
index 000000000000..4a0ae08fc75b
--- /dev/null
+++ b/arch/parisc/video/fbdev.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ * Copyright (C) 2001-2020 Helge Deller <deller@gmx.de>
+ * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+ */
+
+#include <linux/module.h>
+
+#include <asm/fb.h>
+
+#include <video/sticore.h>
+
+int fb_is_primary_device(struct fb_info *info)
+{
+	struct sti_struct *sti;
+
+	sti = sti_get_rom(0);
+
+	/* if no built-in graphics card found, allow any fb driver as default */
+	if (!sti)
+		return true;
+
+	/* return true if it's the default built-in framebuffer driver */
+	return (sti->info == info);
+}
+EXPORT_SYMBOL(fb_is_primary_device);
-- 
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