mb/google/skyrim: Add ELAN touchscreen
Add ELAN touch support
BUG=b:243120074
TEST=emerge coreboot and check ELAN touch screen is workable
Change-Id: If30232b3da9af0015d6d87535b53f905c5a30bcb
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66912
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: John Su <john_su@compal.corp-partner.google.com>
Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
Reviewed-by: Isaac Lee <isaaclee@google.com>
diff --git a/src/mainboard/google/skyrim/variants/skyrim/overridetree.cb b/src/mainboard/google/skyrim/variants/skyrim/overridetree.cb
index f59e43e..80bc8ac 100644
--- a/src/mainboard/google/skyrim/variants/skyrim/overridetree.cb
+++ b/src/mainboard/google/skyrim/variants/skyrim/overridetree.cb
@@ -119,6 +119,22 @@
register "hid_desc_reg_offset" = "0x01"
device i2c 5d on end
end
+ chip drivers/i2c/generic
+ register "hid" = ""ELAN0001""
+ register "desc" = ""ELAN Touchscreen""
+ register "probed" = "1"
+ register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_29)"
+ register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_131)"
+ register "enable_delay_ms" = "1"
+ register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_136)"
+ register "reset_delay_ms" = "20"
+ register "reset_off_delay_ms" = "2"
+ register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_76)"
+ register "stop_off_delay_ms" = "2"
+ register "has_power_resource" = "1"
+ register "disable_gpio_export_in_crs" = "1"
+ device i2c 10 on end
+ end
chip drivers/generic/gpio_keys
register "name" = ""PENH""
register "gpio" = "ACPI_GPIO_INPUT_ACTIVE_LOW(GPIO_3)"