Change in coreboot[master]: mb/google/dedede/var/lantis: Add ELAN touchscreen support for Landrid

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/62002 )

Change subject: mb/google/dedede/var/lantis: Add ELAN touchscreen support for Landrid
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mb/google/dedede/var/lantis: Add ELAN touchscreen support for Landrid

The touchscreen slave address for landrid is 0x10 same as lantis, so we use SSFC to switch touchscreen controller.

BUG=b:222976965
TEST=emerge-dedede coreboot

Change-Id: I23d3de5e45aa2876c1590a1e09679d652a3f2906
Signed-off-by: Robert Chen 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62002
Tested-by: build bot (Jenkins) 
Reviewed-by: Karthik Ramasubramanian 
---
M src/mainboard/google/dedede/variants/lantis/overridetree.cb
1 file changed, 24 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Karthik Ramasubramanian: Looks good to me, approved

diff --git a/src/mainboard/google/dedede/variants/lantis/overridetree.cb b/src/mainboard/google/dedede/variants/lantis/overridetree.cb
index 3a9910b..3ba85bd 100644
--- a/src/mainboard/google/dedede/variants/lantis/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/lantis/overridetree.cb
@@ -4,6 +4,11 @@
    	option AUDIO_CODEC_ALC5682	1
    	option AUDIO_CODEC_ALC5682I_VS	2
    end
+	field TS_DRIVER_SOURCE 43 45
+		option TS_UNPROVISIONED 0
+		option TS_ELAN0001       1
+		option TS_ELAN2513           2
+	end
 end
 chip soc/intel/jasperlake

@@ -176,7 +181,25 @@
    			register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
    			register "enable_delay_ms" = "1"
    			register "has_power_resource" = "1"
-				device i2c 10 on end
+				device i2c 10 on
+					probe TS_DRIVER_SOURCE TS_UNPROVISIONED
+					probe TS_DRIVER_SOURCE TS_ELAN0001
+				end
+			end
+			chip drivers/i2c/hid
+				register "generic.hid" = ""ELAN2513""
+				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_HIGH(GPP_D5)"
+				register "generic.reset_delay_ms" = "20"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
+				register "generic.enable_delay_ms" = "1"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 10 on
+					probe TS_DRIVER_SOURCE TS_ELAN2513
+				end
    		end
    		chip drivers/i2c/hid
    			register "generic.hid" = ""GTCH7503""