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authorMatt DeVillier <matt.devillier@gmail.com>2023-07-24 18:33:46 -0500
committerFelix Held <felix-coreboot@felixheld.de>2023-07-26 13:27:19 +0000
commita6076cfcfdbe46e81e598e4761eb5d4c4a4082ab (patch)
tree5d5dd3ec0d764b5ba7c0569de7d57b8356e6823f /src
parent48c1bf491bbafb252b05df68c72d18fc93ac0d24 (diff)
mb/google/butterfly: override SMBus subsystem ID
Necessary to allow coolstar's Windows touchpad driver for this board, since the touchpad is attached to the SMBus. The VID/DID combo used is not registered/doesn't conflict with any currently in use, and would be difficult to change at this point since the Windows drivers have already been signed. TEST=build/boot Win11, Linux on butterfly/lumpy/parrot, verify touchpad driver works properly. Change-Id: I61912fd6db9eb4b8d202ab633b8c7ca5913e759f Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76742 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/butterfly/devicetree.cb4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mainboard/google/butterfly/devicetree.cb b/src/mainboard/google/butterfly/devicetree.cb
index 24d973e209..5b3841a1f0 100644
--- a/src/mainboard/google/butterfly/devicetree.cb
+++ b/src/mainboard/google/butterfly/devicetree.cb
@@ -79,7 +79,9 @@ chip northbridge/intel/sandybridge
end
end # LPC bridge
device ref sata1 on end # SATA Controller 1
- device ref smbus on end # SMBus
+ device ref smbus on
+ subsystemid 0x04B4 0x18D1
+ end # SMBus
device ref sata2 off end # SATA Controller 2
device ref thermal on end # Thermal
end