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| author | Maciej W. Rozycki <macro@orcam.me.uk> | 2025-10-21 20:38:22 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2025-10-22 11:06:07 -0500 |
| commit | bf5570590a981d0659d0808d2d4bcda21b27a2a5 (patch) | |
| tree | 66b32f563d166303029e5cde3995f752c2c25ec7 /tools/docs/parse-headers.py | |
| parent | fc2bc2623e3a099165b02d13567d21fabb5ea54d (diff) | |
MIPS: Malta: Fix keyboard resource preventing i8042 driver from registering
MIPS Malta platform code registers the PCI southbridge legacy port I/O
PS/2 keyboard range as a standard resource marked as busy. It prevents
the i8042 driver from registering as it fails to claim the resource in
a call to i8042_platform_init(). Consequently PS/2 keyboard and mouse
devices cannot be used with this platform.
Fix the issue by removing the busy marker from the standard reservation,
making the driver register successfully:
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
and the resource show up as expected among the legacy devices:
00000000-00ffffff : MSC PCI I/O
00000000-0000001f : dma1
00000020-00000021 : pic1
00000040-0000005f : timer
00000060-0000006f : keyboard
00000060-0000006f : i8042
00000070-00000077 : rtc0
00000080-0000008f : dma page reg
000000a0-000000a1 : pic2
000000c0-000000df : dma2
[...]
If the i8042 driver has not been configured, then the standard resource
will remain there preventing any conflicting dynamic assignment of this
PCI port I/O address range.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/alpine.DEB.2.21.2510211919240.8377@angie.orcam.me.uk
Diffstat (limited to 'tools/docs/parse-headers.py')
0 files changed, 0 insertions, 0 deletions
