mb/google/dedede: Enable ELAN touchscreen for Waddledoo
Add ELAN EKTH6918 USI touchscreen support.
BUG=b:152936745
TEST="emerge-dedede coreboot chromeos-bootimage", build successful.
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I030c7d7e76a9705be06fe907c4ac279e247cb163
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marco Chen <marcochen@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
diff --git a/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb b/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
index cc9e651..920c179 100644
--- a/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/waddledoo/overridetree.cb
@@ -73,6 +73,26 @@
register "hid_desc_reg_offset" = "0x00"
device i2c 5c on end
end
+ chip drivers/i2c/hid
+ register "generic.hid" = ""ELAN9050""
+ register "generic.desc" = ""ELAN Touchscreen""
+ register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_D4_IRQ)"
+ register "generic.probed" = "1"
+ register "generic.reset_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D5)"
+ register "generic.reset_delay_ms" = "20"
+ register "generic.reset_off_delay_ms" = "2"
+ register "generic.stop_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A11)"
+ register "generic.stop_delay_ms" = "280"
+ register "generic.stop_off_delay_ms" = "2"
+ register "generic.enable_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
+ register "generic.enable_delay_ms" = "1"
+ register "generic.has_power_resource" = "1"
+ register "hid_desc_reg_offset" = "0x01"
+ device i2c 15 on end
+ end
end # I2C 2
device pci 1c.7 on
chip drivers/intel/wifi