[coreboot-gerrit] Change in coreboot[master]: mb/google/volteer/variant/lindar: Update devicetree settings for touc...

[Stanley Wu (Code Review)]

Stanley Wu has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/47390 )

Change subject: mb/google/volteer/variant/lindar: Update devicetree settings for touchscreen and trackpad
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mb/google/volteer/variant/lindar: Update devicetree settings for touchscreen and trackpad

Update I2C address for Goodix touchscreen and add ELAN touchscreen & Synaptics trackpad.

BUG=b:160013582
TEST=emerge-puff coreboot and check system dmesg and evtest can get device.

Change-Id: I070fb0e06b588f128253270502c9c2c427c62b84
Signed-off-by: Stanley Wu 
---
M src/mainboard/google/volteer/variants/lindar/overridetree.cb
1 file changed, 22 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/47390/1

diff --git a/src/mainboard/google/volteer/variants/lindar/overridetree.cb b/src/mainboard/google/volteer/variants/lindar/overridetree.cb
index 87ca0a3..03cef1c 100644
--- a/src/mainboard/google/volteer/variants/lindar/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/lindar/overridetree.cb
@@ -58,7 +58,19 @@
    			register "generic.stop_off_delay_ms" = "1"
    			register "generic.has_power_resource" = "1"
    			register "hid_desc_reg_offset" = "0x01"
-				device i2c 14 on end
+				device i2c 5d on end
+			end
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0001""
+				register "desc" = ""ELAN Touchscreen""
+				register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)"
+				register "probed" = "1"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C10)"
+				register "reset_delay_ms" = "20"
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_A8)"
+				register "enable_delay_ms" = "1"
+				register "has_power_resource" = "1"
+				device i2c 10 on end
    		end
    	end
    	device ref i2c5 on
@@ -70,6 +82,15 @@
    			register "probed" = "1"
    			device i2c 15 on end
    		end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""PNP0C50""
+				register "generic.desc" = ""Synaptics Touchpad""
+				register "generic.irq" = "ACPI_IRQ_WAKE_EDGE_LOW(GPP_E15_IRQ)"
+				register "generic.wake" = "GPE0_DW2_15"
+				register "generic.probed" = "1"
+				register "hid_desc_reg_offset" = "0x20"
+				device i2c 2c on end
+			end
    	end
    	device ref north_xhci on
    		chip drivers/usb/acpi