[coreboot-gerrit] Change in coreboot[master]: mb/google/hatch/var/dratini: Add ELAN touchscreen support

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/36125 )

Change subject: mb/google/hatch/var/dratini: Add ELAN touchscreen support
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mb/google/hatch/var/dratini: Add ELAN touchscreen support

Add ELAN EKTH6915 USI touchsreen support.

BUG=b:139392144
TEST=check touchscreen work, and confirmed power sequence with vendor.

Change-Id: I8ebc067bbb407498de00ea0b6c23b0848023cffe
Signed-off-by: Wisley Chen 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36125
Reviewed-by: Paul Fagerburg 
Reviewed-by: Tim Wawrzynczak 
Reviewed-by: Shelley Chen 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/hatch/variants/dratini/overridetree.cb
1 file changed, 16 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Shelley Chen: Looks good to me, approved
  Tim Wawrzynczak: Looks good to me, approved
  Paul Fagerburg: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/hatch/variants/dratini/overridetree.cb b/src/mainboard/google/hatch/variants/dratini/overridetree.cb
index 8fc33ef..28b18b8 100644
--- a/src/mainboard/google/hatch/variants/dratini/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/dratini/overridetree.cb
@@ -109,6 +109,22 @@
    			register "hid_desc_reg_offset" = "0x01"
    			device i2c 5d on end
    		end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN2513""
+				register "generic.desc" = ""ELAN Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_D16_IRQ)"
+				register "generic.probed" = "1"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D15)"
+				register "generic.reset_delay_ms" = "20"
+				register "generic.reset_off_delay_ms" = "2"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D9)"
+				register "generic.enable_delay_ms" = "10"
+				register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C4)"
+				register "generic.stop_delay_ms" = "130"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 15 on end
+			end
    	end # I2C #1
    	device pci 15.2 off end # I2C #2
    	device pci 15.3 off end # I2C #3