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efifb: Enable the efi-framebuffer platform driver for ARM and arm64

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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>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/1461614832-17633-25-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ard Biesheuvel 2016-04-25 21:06:56 +01:00 committed by Ingo Molnar
parent e3271c96ca
commit 9822504c1f
3 changed files with 9 additions and 1 deletions
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4
arch/arm/include/asm/efi.h
View File

@ -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

4
arch/arm64/include/asm/efi.h
View File

@ -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
/*

2
drivers/video/fbdev/Kconfig
View File

@ -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