[S] Change in coreboot[master]: mb/google/nissa/var/yavilla: Add elan touchscreen support

[Tony Huang (Code Review)]

Tony Huang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74776 )

Change subject: mb/google/nissa/var/yavilla: Add elan touchscreen support
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mb/google/nissa/var/yavilla: Add elan touchscreen support

Update devicetree to support ELAN I2C generic touchscreen.

BUG=b:273791621
BRANCH=firmware-nissa-15217.B
TEST=emerge-nissa coreboot

Change-Id: I2779c2930d89ff42233f9b20bd8abdf6dc00c0e0
Signed-off-by: Tony Huang 
---
M src/mainboard/google/brya/variants/yavilla/overridetree.cb
1 file changed, 32 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/74776/1

diff --git a/src/mainboard/google/brya/variants/yavilla/overridetree.cb b/src/mainboard/google/brya/variants/yavilla/overridetree.cb
index f7798e7..33e5571 100644
--- a/src/mainboard/google/brya/variants/yavilla/overridetree.cb
+++ b/src/mainboard/google/brya/variants/yavilla/overridetree.cb
@@ -156,6 +156,22 @@
    		end
    	end
    	device ref i2c1 on
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0001""
+				register "desc" = ""ELAN Touchscreen""
+				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+				register "probed" = "1"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+				register "reset_delay_ms" = "20"
+				register "reset_off_delay_ms" = "2"
+				register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
+				register "stop_delay_ms" = "280"
+				register "stop_off_delay_ms" = "2"
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+				register "enable_delay_ms" = "1"
+				register "has_power_resource" = "1"
+				device i2c 10 on end
+			end
    		chip drivers/i2c/hid
    			register "generic.hid" = ""ELAN2513""
    			register "generic.desc" = ""ELAN Touchscreen""