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authorDtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>2021-05-24 14:36:12 +0800
committerWerner Zeh <werner.zeh@siemens.com>2021-06-04 03:46:42 +0000
commite219862795958009909c36e3a9298dc07935549b (patch)
tree62b76c56d2ae9541a30e558efacefbe4714dfb6c /src/mainboard
parente9ee4390a5f638caf9e86f5782a2d237c04f0baf (diff)
mb/google/dedede/var/cret: Add new Elan touchscreen
Add Elan eKTH7D18 touchscreen into devicetree for cret. BUG=b:180547935, b:187484857 BRANCH=dedede TEST=Built cret firmware and verified touchscreen function. Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com> Change-Id: Iab87ddfc7b46420439efa3e7e55c88ad4c27155d Reviewed-on: https://review.coreboot.org/c/coreboot/+/54868 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/dedede/variants/cret/overridetree.cb18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/cret/overridetree.cb b/src/mainboard/google/dedede/variants/cret/overridetree.cb
index 258632204b..82002e45a8 100644
--- a/src/mainboard/google/dedede/variants/cret/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/cret/overridetree.cb
@@ -147,6 +147,24 @@ chip soc/intel/jasperlake
register "has_power_resource" = "1"
device i2c 10 on end
end
+ chip drivers/i2c/hid
+ register "generic.hid" = ""ELAN900C""
+ register "generic.desc" = ""ELAN Touchscreen""
+ register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)"
+ register "generic.probed" = "1"
+ register "generic.reset_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D5)"
+ register "generic.reset_delay_ms" = "6"
+ register "generic.stop_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A11)"
+ register "generic.stop_delay_ms" = "300"
+ register "generic.enable_gpio" =
+ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
+ register "generic.enable_delay_ms" = "6"
+ register "generic.has_power_resource" = "1"
+ register "hid_desc_reg_offset" = "0x01"
+ device i2c 16 on end
+ end
end # I2C 2
device pci 15.3 off end # I2C 3
device pci 1c.7 on end