[Deepin-Kernel-SIG] [linux 6.12-y] [Deepin] config: deepin_arm64_desktop_defconfig: recover enable FB_EFI

[opsiff]

#1407 6.6

deepin inclusion
category: bugfix

Fix situation when dkms drm driver not install to light the monitor.

Link: #724
Signed-off-by: Wentao Guan guanwentao@uniontech.com
(cherry picked from commit 628373a)
Signed-off-by: Wentao Guan guanwentao@uniontech.com

Conflicts:
arch/arm64/configs/deepin_arm64_desktop_defconfig

Summary by Sourcery

Bug Fixes:

• Fix missing monitor output on Deepin ARM64 systems when DKMS DRM drivers are not installed by enabling EFI framebuffer support in the kernel configuration.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Re-enables the EFI framebuffer (FB_EFI) option in the Deepin ARM64 desktop kernel defconfig so systems still get display output even when a DKMS DRM driver is not installed or loaded.

File-Level Changes

Change	Details	Files
Re-enable EFI framebuffer support in the Deepin ARM64 desktop kernel configuration.	Turn the FB_EFI Kconfig option back on in the deepin_arm64_desktop_defconfig so the EFI framebuffer driver is built/enabled by default Ensure ARM64 desktop builds retain basic display output via EFI when no dedicated DRM driver is present, matching the behavior of the referenced upstream change	arch/arm64/configs/deepin_arm64_desktop_defconfig

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[Avenger-285714]

/approve

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Avenger-285714, lanlanxiyiji

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[Copilot]

Pull request overview

This PR cherry-picks a bugfix from kernel 6.6 to kernel 6.12 that enables EFI framebuffer support in the Deepin ARM64 desktop kernel configuration. The change addresses a situation where monitors fail to light up when DKMS DRM drivers are not installed, providing a fallback display mechanism via the EFI framebuffer.

Changes:

• Changed CONFIG_FB from module to built-in, which is required for EFI framebuffer support
• Enabled CONFIG_FB_EFI for EFI-based framebuffer support
• Added CONFIG_XEN_FBDEV_FRONTEND module support (appears to be from conflict resolution)

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[Copilot]

CONFIG_FB is being changed from module (=m) to built-in (=y), but this change is not explained in the PR description. This change is actually required because CONFIG_FB_EFI has a dependency "depends on (FB = y)" in its Kconfig definition, meaning FB must be built-in for FB_EFI to be enabled. Please update the PR description to document this necessary change and its rationale.

[Copilot]

The addition of CONFIG_XEN_FBDEV_FRONTEND is not mentioned in the PR description. While this configuration option is valid and may have been added during conflict resolution (as mentioned in the PR description), it should be explicitly documented. Please update the commit message or PR description to explain why this Xen framebuffer frontend support is being added alongside FB_EFI.