Change in coreboot[master]: mb/google/dedede/var/magolor: Enable ELAN touchscreen for magneto

[Tyler Wang (Code Review)]

Tyler Wang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/58967 )

Change subject: mb/google/dedede/var/magolor: Enable ELAN touchscreen for magneto
......................................................................

mb/google/dedede/var/magolor: Enable ELAN touchscreen for magneto

Add ELAN touchscreen support for magneto.

BUG=b:203122673
TEST=Build and verify that touchscreen works.

Change-Id: Ie86692901113e952c597fcfc6c58e7ee0fc172fa
---
M src/mainboard/google/dedede/variants/magolor/overridetree.cb
1 file changed, 21 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/58967/1

diff --git a/src/mainboard/google/dedede/variants/magolor/overridetree.cb b/src/mainboard/google/dedede/variants/magolor/overridetree.cb
index de82a8a..24b32db 100644
--- a/src/mainboard/google/dedede/variants/magolor/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/magolor/overridetree.cb
@@ -19,6 +19,7 @@
    	option TS_RAYD_0001 4
    	option TS_WDHT0002 5
    	option TS_GTCH7503 6
+		option TS_ELAN_9004 7
    end
    field AUDIO_CODEC_SOURCE 49 51
    	option AUDIO_CODEC_UNPROVISIONED 0
@@ -228,6 +229,26 @@
    			end
    		end
    		chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN9004""
+				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" = "20"
+				register "generic.reset_off_delay_ms" = "2"
+				register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A11)"
+				register "generic.stop_delay_ms" = "280"
+				register "generic.stop_off_delay_ms" = "2"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
+				register "generic.enable_delay_ms" = "1"
+				register "generic.has_power_resource" = "1"
+				register "generic.disable_gpio_export_in_crs" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 10 on
+					probe TS_SOURCE TS_ELAN_9004
+				end
+			end
+			chip drivers/i2c/hid
    			register "generic.hid" = ""WDHT0002""
    			register "generic.desc" = ""WDT Touchscreen""
    			register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)"