| Date | Mon, 3 Jan 2022 07:11:27 +0100 | From | Gerd Hoffmann <> | Subject | Re: [RFC 26/32] drm: handle HAS_IOPORT dependencies |
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On Mon, Dec 27, 2021 at 05:43:11PM +0100, Niklas Schnelle wrote: > In a future patch HAS_IOPORT=n will result in inb()/outb() and friends > not being declared. We thus need to add HAS_IOPORT as dependency for > those drivers using them. There is also a direct and hard coded use in > cirrus.c which according to the comment is only necessary during resume. > Let's just skip this as for example s390 which doesn't have I/O port > support also doesen't support suspend/resume.
> config DRM_BOCHS > tristate "DRM Support for bochs dispi vga interface (qemu stdvga)" > depends on DRM && PCI && MMU > + depends on HAS_IOPORT > select DRM_KMS_HELPER > select DRM_VRAM_HELPER > select DRM_TTM
On devices with an mmio bar the driver works just fine without inb/outb, see bochs->mmio checks in bochs.c
take care, Gerd
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