[coreboot-gerrit] Change in coreboot[master]: mb/google/deltaur: Enable Melfas touch screen

[EricR Lai (Code Review)]

EricR Lai has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/40113 )

Change subject: mb/google/deltaur: Enable Melfas touch screen
......................................................................

mb/google/deltaur: Enable Melfas touch screen

Reference Drallion to add device tree for Melfas touch screen.

BUG=b:152924290

Signed-off-by: Eric Lai 
Change-Id: I7b0a42119891c6c2d5978d7f33eefffa2d62df76
---
M src/mainboard/google/deltaur/variants/deltan/overridetree.cb
1 file changed, 19 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/40113/1

diff --git a/src/mainboard/google/deltaur/variants/deltan/overridetree.cb b/src/mainboard/google/deltaur/variants/deltan/overridetree.cb
index 32204c5..750c3c5 100644
--- a/src/mainboard/google/deltaur/variants/deltan/overridetree.cb
+++ b/src/mainboard/google/deltaur/variants/deltan/overridetree.cb
@@ -3,4 +3,23 @@
    device domain 0 on
    end

+	device pci 15.0 on
+		chip drivers/i2c/generic
+			register "hid" = ""MLFS0000""
+			register "desc" = ""Melfas Touchscreen""
+			register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_E1_IRQ)"
+			register "probed" = "1"
+			register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A10)"
+			register "reset_delay_ms" = "10"
+			register "reset_off_delay_ms" = "5"
+			register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_B3)"
+			register "stop_delay_ms" = "10"
+			register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_B21)"
+			register "enable_delay_ms" = "55"
+			register "has_power_resource" = "1"
+			register "device_present_gpio" = "GPP_B4"
+			register "device_present_gpio_invert" = "1"
+			device i2c 34 on end
+		end
+	end # I2C #0
 end