mb/google/brya: Enable ELAN9050 touchscreen
Enable ELAN9050 touch screen. Follow below spec:
eKTH7913U_eKTH7915U_eKTH7918U_Product Spec_V1.0_20200807 IPM-11
BUG=b:186342801
TEST=touchscreen is functional in the OS.
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I4c247fae33b9178c8706552aba2f950c9a674ecc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52665
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ivy Jian <ivy_jian@compal.corp-partner.google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/google/brya/variants/brya0/overridetree.cb b/src/mainboard/google/brya/variants/brya0/overridetree.cb
index a0e40b7..b5679c8 100644
--- a/src/mainboard/google/brya/variants/brya0/overridetree.cb
+++ b/src/mainboard/google/brya/variants/brya0/overridetree.cb
@@ -36,6 +36,25 @@
end
device ref i2c1 on
chip drivers/i2c/hid
+ register "generic.hid" = ""ELAN9050""
+ register "generic.desc" = ""ELAN Touchscreen""
+ register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+ register "generic.probed" = "1"
+ register "generic.reset_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+ register "generic.reset_delay_ms" = "300"
+ register "generic.reset_off_delay_ms" = "1"
+ register "generic.enable_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+ register "generic.enable_delay_ms" = "6"
+ register "generic.stop_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
+ register "generic.stop_off_delay_ms" = "1"
+ register "generic.has_power_resource" = "1"
+ register "hid_desc_reg_offset" = "0x01"
+ device i2c 0x10 on end
+ end
+ chip drivers/i2c/hid
register "generic.hid" = ""GDIX0000""
register "generic.desc" = ""Goodix Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"