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https://salsa.debian.org/kernel-team/initramfs-tools.git
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d11ba241dc
Recent Debian kernels have the simplefb driver built-in on a few architectures, except in cloud flavours. It handles 'simple-framebuffer' devices registered from elsewhere: possibly in a device-tree fragment, or from another driver like framebuffer_coreboot, or via SYSFB_SIMPLEFB. The more modern alternative to it is simpledrm which also handles the same 'simple-framebuffer' devices. We haven't switched to simpledrm, but if we do it's possible we will want it to be a module, since it depends on the drm subsystem and would require that to be built-in otherwise. Regardless of what we choose for Debian kernels, it's still possible for custom-built kernels to have either/both of simplefb and simpledrm as modules instead of built-in. Include these modules in initramfs unconditionally when MODULES=dep. For MODULES=most, add the two drivers to the framebuffer modules list. When MODULES=dep and these drives are (probed) modules, our check for platform framebuffers always finds a "module" directory in the driver's sysfs directory and incorrectly skips handling graphics modules, ignore the false positive. Unfortunately, these drivers sometimes do not get probed automatically. One such case is efifb with SYSFB_SIMPLEFB=y, which is quite important. Add a init-top script that tries to probe simpledrm, with a fallback to simplefb. Explicitly try to probe these modules for break=top as well. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
21 lines
317 B
Bash
Executable File
21 lines
317 B
Bash
Executable File
#!/bin/sh
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PREREQ=""
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prereqs()
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{
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echo "$PREREQ"
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}
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case $1 in
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# get pre-requisites
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prereqs)
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prereqs
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exit 0
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;;
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esac
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# These sometimes don't get probed automatically, but we need them
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# for efifb etc. when SYSFB_SIMPLEFB=y, or with framebuffer-coreboot
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/sbin/modprobe simpledrm || /sbin/modprobe simplefb || true
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