linux-kernel - [PATCH v2 13/19] arch/parisc: Implement fb_is_primary

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Message-Id: <20230406143019.6709-14-tzimmermann@suse.de>
Date:   Thu,  6 Apr 2023 16:30:13 +0200
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     arnd@...db.de, daniel.vetter@...ll.ch, deller@....de,
        javierm@...hat.com, gregkh@...uxfoundation.org
Cc:     linux-arch@...r.kernel.org, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
        loongarch@...ts.linux.dev, linux-m68k@...ts.linux-m68k.org,
        linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, x86@...nel.org,
        Thomas Zimmermann <tzimmermann@...e.de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>
Subject: [PATCH v2 13/19] 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@...e.de>
Cc: "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>
Cc: Helge Deller <deller@....de>
---
 arch/parisc/Makefile         |  2 ++
 arch/parisc/include/asm/fb.h |  2 +-
 arch/parisc/video/Makefile   |  3 +++
 arch/parisc/video/fbdev.c    | 27 +++++++++++++++++++++++++++
 drivers/video/sticore.c      | 19 -------------------
 include/video/sticore.h      |  2 ++
 6 files changed, 35 insertions(+), 20 deletions(-)
 create mode 100644 arch/parisc/video/Makefile
 create mode 100644 arch/parisc/video/fbdev.c

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 0d049a6f6a60..968ebe17494c 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -119,6 +119,8 @@ export LIBGCC
 
 libs-y	+= arch/parisc/lib/ $(LIBGCC)
 
+drivers-y += arch/parisc/video/
+
 boot	:= arch/parisc/boot
 
 PALO := $(shell if (which palo 2>&1); then : ; \
diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h
index 55d29c4f716e..0b9a38ced5c8 100644
--- a/arch/parisc/include/asm/fb.h
+++ b/arch/parisc/include/asm/fb.h
@@ -12,7 +12,7 @@ static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
 	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
 }
 
-#if defined(CONFIG_FB_STI)
+#if defined(CONFIG_STI_CORE)
 int fb_is_primary_device(struct fb_info *info);
 #else
 static inline int fb_is_primary_device(struct fb_info *info)
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@....org>
+ * Copyright (C) 2001-2020 Helge Deller <deller@....de>
+ * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@...ha.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);
diff --git a/drivers/video/sticore.c b/drivers/video/sticore.c
index f8aaedea437d..7eb925f2ba9c 100644
--- a/drivers/video/sticore.c
+++ b/drivers/video/sticore.c
@@ -30,7 +30,6 @@
 #include <asm/pdc.h>
 #include <asm/cacheflush.h>
 #include <asm/grfioctl.h>
-#include <asm/fb.h>
 
 #include <video/sticore.h>
 
@@ -1148,24 +1147,6 @@ int sti_call(const struct sti_struct *sti, unsigned long func,
 	return ret;
 }
 
-#if defined(CONFIG_FB_STI)
-/* check if given fb_info is the primary device */
-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);
-#endif
-
 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
 MODULE_LICENSE("GPL v2");
diff --git a/include/video/sticore.h b/include/video/sticore.h
index c0879352cde4..fbb78d7e7565 100644
--- a/include/video/sticore.h
+++ b/include/video/sticore.h
@@ -2,6 +2,8 @@
 #ifndef STICORE_H
 #define STICORE_H
 
+struct fb_info;
+
 /* generic STI structures & functions */
 
 #define MAX_STI_ROMS 4		/* max no. of ROMs which this driver handles */
-- 
2.40.0