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-rw-r--r--include/asm-generic/fb.h24
1 files changed, 22 insertions, 2 deletions
diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h
index f9f18101ed36..c8af99f5a535 100644
--- a/include/asm-generic/fb.h
+++ b/include/asm-generic/fb.h
@@ -1,13 +1,33 @@
/* SPDX-License-Identifier: GPL-2.0 */
+
#ifndef __ASM_GENERIC_FB_H_
#define __ASM_GENERIC_FB_H_
-#include <linux/fb.h>
-#define fb_pgprotect(...) do {} while (0)
+/*
+ * Only include this header file from your architecture's <asm/fb.h>.
+ */
+
+#include <linux/mm_types.h>
+#include <linux/pgtable.h>
+
+struct fb_info;
+struct file;
+
+#ifndef fb_pgprotect
+#define fb_pgprotect fb_pgprotect
+static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
+ unsigned long off)
+{
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+}
+#endif
+#ifndef fb_is_primary_device
+#define fb_is_primary_device fb_is_primary_device
static inline int fb_is_primary_device(struct fb_info *info)
{
return 0;
}
+#endif
#endif /* __ASM_GENERIC_FB_H_ */