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8633ef82f1
The register_gop_device() function registers an "efi-framebuffer" platform
device to match against the efifb driver, to have an early framebuffer for
EFI platforms.
But there is already support to do exactly the same by the Generic System
Framebuffers (sysfb) driver. This used to be only for X86 but it has been
moved to drivers/firmware and could be reused by other architectures.
Also, besides supporting registering an "efi-framebuffer", this driver can
register a "simple-framebuffer" allowing to use the siple{fb,drm} drivers
on non-X86 EFI platforms. For example, on aarch64 these drivers can only
be used with DT and doesn't have code to register a "simple-frambuffer"
platform device when booting with EFI.
For these reasons, let's remove the register_gop_device() duplicated code
and instead move the platform specific logic that's there to sysfb driver.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210625131359.1804394-1-javierm@redhat.com
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _LINUX_SYSFB_H
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#define _LINUX_SYSFB_H
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/*
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* Generic System Framebuffers on x86
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* Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
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*/
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#include <linux/kernel.h>
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#include <linux/platform_data/simplefb.h>
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#include <linux/screen_info.h>
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enum {
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M_I17, /* 17-Inch iMac */
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M_I20, /* 20-Inch iMac */
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M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
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M_I24, /* 24-Inch iMac */
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M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
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M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
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M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
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M_MINI, /* Mac Mini */
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M_MINI_3_1, /* Mac Mini, 3,1th gen */
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M_MINI_4_1, /* Mac Mini, 4,1th gen */
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M_MB, /* MacBook */
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M_MB_2, /* MacBook, 2nd rev. */
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M_MB_3, /* MacBook, 3rd rev. */
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M_MB_5_1, /* MacBook, 5th rev. */
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M_MB_6_1, /* MacBook, 6th rev. */
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M_MB_7_1, /* MacBook, 7th rev. */
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M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
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M_MBA, /* MacBook Air */
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M_MBA_3, /* Macbook Air, 3rd rev */
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M_MBP, /* MacBook Pro */
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M_MBP_2, /* MacBook Pro 2nd gen */
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M_MBP_2_2, /* MacBook Pro 2,2nd gen */
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M_MBP_SR, /* MacBook Pro (Santa Rosa) */
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M_MBP_4, /* MacBook Pro, 4th gen */
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M_MBP_5_1, /* MacBook Pro, 5,1th gen */
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M_MBP_5_2, /* MacBook Pro, 5,2th gen */
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M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
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M_MBP_6_1, /* MacBook Pro, 6,1th gen */
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M_MBP_6_2, /* MacBook Pro, 6,2th gen */
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M_MBP_7_1, /* MacBook Pro, 7,1th gen */
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M_MBP_8_2, /* MacBook Pro, 8,2nd gen */
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M_UNKNOWN /* placeholder */
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};
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struct efifb_dmi_info {
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char *optname;
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unsigned long base;
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int stride;
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int width;
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int height;
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int flags;
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};
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#ifdef CONFIG_EFI
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extern struct efifb_dmi_info efifb_dmi_list[];
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void sysfb_apply_efi_quirks(struct platform_device *pd);
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#else /* CONFIG_EFI */
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static inline void sysfb_apply_efi_quirks(struct platform_device *pd)
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{
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}
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#endif /* CONFIG_EFI */
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#ifdef CONFIG_SYSFB_SIMPLEFB
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bool sysfb_parse_mode(const struct screen_info *si,
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struct simplefb_platform_data *mode);
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int sysfb_create_simplefb(const struct screen_info *si,
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const struct simplefb_platform_data *mode);
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#else /* CONFIG_SYSFB_SIMPLE */
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static inline bool sysfb_parse_mode(const struct screen_info *si,
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struct simplefb_platform_data *mode)
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{
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return false;
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}
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static inline int sysfb_create_simplefb(const struct screen_info *si,
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const struct simplefb_platform_data *mode)
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{
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return -EINVAL;
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}
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#endif /* CONFIG_SYSFB_SIMPLE */
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#endif /* _LINUX_SYSFB_H */
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