[coreboot-gerrit] [S] Change in coreboot[main]: mb/google/nissa/var/guren: Add touch screen ILIT2901 support

[Daniel Peng (Code Review)]

Daniel Peng has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/87196?usp=email )

Change subject: mb/google/nissa/var/guren: Add touch screen ILIT2901 support
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mb/google/nissa/var/guren: Add touch screen ILIT2901 support

New Touchscreen function for Guren360 project.
Touchscreen panel of MUTTO A153728S1Y(11')
/K&D KD116N37-30TE-A002(11')/MUTTO B153797S1Y(12') are the
same IC controller for ILITEK device, and set TOUCHSCREEN_ILIT2901
to value "2".

BUG=b:406168542
BRANCH=firmware-nissa-15217.B
TEST=1. emerge-nissa coreboot chromeos-bootimage
     2. Confirm command evtest and touchscreen function is workable.

Change-Id: I3435a8852b1fdb897d5f89c580b5f9bfca03dd8e
Signed-off-by: Daniel Peng 
---
M src/mainboard/google/brya/variants/guren/overridetree.cb
1 file changed, 20 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/96/87196/1

diff --git a/src/mainboard/google/brya/variants/guren/overridetree.cb b/src/mainboard/google/brya/variants/guren/overridetree.cb
index 77ec260..5c7b065 100644
--- a/src/mainboard/google/brya/variants/guren/overridetree.cb
+++ b/src/mainboard/google/brya/variants/guren/overridetree.cb
@@ -24,6 +24,7 @@
    field TOUCHSCREEN_SOURCE 32 34
    	option TOUCHSCREEN_UNPROVISIONED	0
    	option TOUCHSCREEN_ELAN0001		1
+		option TOUCHSCREEN_ILIT2901		2
    end
 end

@@ -344,6 +345,25 @@
    			end
    		end

+			chip drivers/i2c/hid
+				register "generic.hid" = ""ILIT2901""
+				register "generic.desc" = ""ILI Touchscreen""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
+				register "generic.detect" = "1"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
+				register "generic.reset_delay_ms" = "10"
+				register "generic.reset_off_delay_ms" = "4"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+				register "generic.enable_delay_ms" = "12"
+				register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
+				register "generic.stop_delay_ms" = "105"
+				register "generic.stop_off_delay_ms" = "5"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 41 on
+					probe TOUCHSCREEN_SOURCE TOUCHSCREEN_ILIT2901
+				end
+			end
    	end #I2C1
    	device ref i2c2 on
    		chip drivers/i2c/sx9324