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drm: handle HAS_IOPORT dependencies

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In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
compile time. We thus need to add HAS_IOPORT as dependency for those
drivers using them. In the bochs driver there is optional MMIO support
detected at runtime, warn if this isn't taken when HAS_IOPORT is not
defined.

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.

Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> # xe
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Niklas Schnelle
2024-10-24 19:54:42 +02:00
committed by Arnd Bergmann
parent f062b6ecc7
commit f663c6ae36
5 changed files with 19 additions and 8 deletions
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2
drivers/gpu/drm/gma500/Kconfig
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@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
config DRM_GMA500
tristate "Intel GMA500/600/3600/3650 KMS Framebuffer"
depends on DRM && PCI && X86 && MMU
depends on DRM && PCI && X86 && MMU && HAS_IOPORT
select DRM_KMS_HELPER
select FB_IOMEM_HELPERS if DRM_FBDEV_EMULATION
select I2C