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Subject[PATCH 24/40] efifb: Enable the efi-framebuffer platform driver for ARM and arm64
Date
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Allows the efifb driver to be built for ARM and arm64. This simply involves
updating the Kconfig dependency expression, and supplying dummy versions of
efifb_setup_from_dmi().

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Peter Jones <pjones@redhat.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
---
arch/arm/include/asm/efi.h | 4 ++++
arch/arm64/include/asm/efi.h | 4 ++++
drivers/video/fbdev/Kconfig | 2 +-
3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h
index 25f8b1162c2e..b45fe39bf35b 100644
--- a/arch/arm/include/asm/efi.h
+++ b/arch/arm/include/asm/efi.h
@@ -67,6 +67,10 @@ void efi_virtmap_unload(void);
struct screen_info *alloc_screen_info(efi_system_table_t *sys_table_arg);
void free_screen_info(efi_system_table_t *sys_table, struct screen_info *si);

+static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
+{
+}
+
/*
* A reasonable upper bound for the uncompressed kernel size is 32 MBytes,
* so we will reserve that amount of memory. We have no easy way to tell what
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index fa09886f72e6..79dc8c237c7e 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -59,6 +59,10 @@ int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);
#define alloc_screen_info(x...) &screen_info
#define free_screen_info(x...)

+static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
+{
+}
+
#define EFI_ALLOC_ALIGN SZ_64K

/*
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 983280e8d93f..e5a391aecde1 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -761,7 +761,7 @@ config FB_VESA

config FB_EFI
bool "EFI-based Framebuffer Support"
- depends on (FB = y) && X86 && EFI
+ depends on (FB = y) && !IA64 && EFI
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
--
2.7.3
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