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-rw-r--r--src/mainboard/google/sarien/variants/sarien/devicetree.cb13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
index d3d26f9800..d6563fb3eb 100644
--- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
@@ -235,6 +235,19 @@ chip soc/intel/cannonlake
register "hid_desc_reg_offset" = "0x0"
device i2c 10 on end
end
+ chip drivers/i2c/hid
+ register "generic.hid" = ""ELAN900C""
+ register "generic.desc" = ""ELAN Touchscreen""
+ register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
+ register "generic.probed" = "1"
+ register "generic.enable_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E7)"
+ register "generic.enable_delay_ms" = "5"
+ register "generic.enable_off_delay_ms" = "100"
+ register "generic.has_power_resource" = "1"
+ register "hid_desc_reg_offset" = "0x01"
+ device i2c 10 on end
+ end
end # I2C #0
device pci 15.1 on
chip drivers/i2c/generic