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authorWei-Ning Huang <wnhuang@google.com>2017-04-24 18:53:22 +0800
committerDuncan Laurie <dlaurie@chromium.org>2017-04-27 22:26:01 +0200
commit267e4a58245c765c7e621bfa9b6d5589effcfe01 (patch)
tree8674c05dc1e5a8363055f71d3d21d5f1e165208f
parentca3815b4c586c63743892ee04ad61026d6ba4df0 (diff)
downloadcoreboot-267e4a58245c765c7e621bfa9b6d5589effcfe01.tar.xz
mb/google/eve: switch touchpad devicetree to i2c-hid and cros_ec i2c device
The new touchpad firmware uses i2c-hid instead of custom reporting protocol. The touchpad also exposed another slave address (0x1e) for kernel to communicate with the touchpad EC. Change-Id: Iecaf14f7b8aed836120569e9ade9c3115bc00264 Signed-off-by: Wei-Ning Huang <wnhuang@google.com> Reviewed-on: https://review.coreboot.org/19461 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
-rw-r--r--src/mainboard/google/eve/devicetree.cb14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/mainboard/google/eve/devicetree.cb b/src/mainboard/google/eve/devicetree.cb
index 275ee8adfa..1305f9cb51 100644
--- a/src/mainboard/google/eve/devicetree.cb
+++ b/src/mainboard/google/eve/devicetree.cb
@@ -241,12 +241,18 @@ chip soc/intel/skylake
end
end # I2C #1
device pci 15.2 on
- chip drivers/i2c/generic
- register "hid" = ""GOOG5400""
- register "desc" = ""Touchpad""
- register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)"
+ chip drivers/i2c/hid
+ register "generic.hid" = ""ACPI0C50""
+ register "generic.desc" = ""Touchpad""
+ register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)"
+ register "hid_desc_reg_offset" = "0x1"
device i2c 49 on end
end
+ chip drivers/i2c/generic
+ register "hid" = ""GOOG0008""
+ register "desc" = ""Touchpad EC Interface""
+ device i2c 1e on end
+ end
end # I2C #2
device pci 15.3 off end # I2C #3
device pci 16.0 on end # Management Engine Interface 1