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

[Eric Lai (Code Review)]

Eric Lai has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84894?usp=email )

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

mb/google/nissa/var/glassway: Add touch screen ILIT2901 support

1. Extend 1 bit [34] for the TOUCHSCREEN_SOURCE.
   SSFC range for TOUCHSCREEN_SOURCE is bit[32:34].
2. Touchscreen panel: MUTTO A153728S1Y,
   and set TOUCHSCREEN_ILIT2901 to value "4"
3. Datasheet: #153728S1V1.0 SPEC_20240923.pdf

BUG=b:375986645
BRANCH=firmware-nissa-15217.B
TEST=1. emerge-nissa coreboot chromeos-bootimage
     2. Confirm command evtest and touchscreen function is workable.

Change-Id: I6e13c948edca5a894e1a00a1954f0f88c4a079cf
Signed-off-by: Daniel Peng 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84894
Reviewed-by: Eric Lai 
Reviewed-by: Jayvik Desai 
Reviewed-by: Paul Menzel 
Reviewed-by: Subrata Banik 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/brya/variants/glassway/overridetree.cb
1 file changed, 18 insertions(+), 1 deletion(-)

Approvals:
  Paul Menzel: Looks good to me, but someone else must approve
  build bot (Jenkins): Verified
  Subrata Banik: Looks good to me, approved
  Eric Lai: Looks good to me, approved
  Jayvik Desai: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/brya/variants/glassway/overridetree.cb b/src/mainboard/google/brya/variants/glassway/overridetree.cb
index 3e2e2f1..85c08db 100644
--- a/src/mainboard/google/brya/variants/glassway/overridetree.cb
+++ b/src/mainboard/google/brya/variants/glassway/overridetree.cb
@@ -31,11 +31,12 @@
    	option WFC_ABSENT		0
    	option WFC_PRESENT		1
    end
-	field TOUCHSCREEN_SOURCE 32 33
+	field TOUCHSCREEN_SOURCE 32 34
    	option TOUCHSCREEN_UNPROVISIONED	0
    	option TOUCHSCREEN_ELAN0001		1
    	option TOUCHSCREEN_GTCH7503		2
    	option TOUCHSCREEN_ELAN9004		3
+		option TOUCHSCREEN_ILIT2901		4
    end
 end

@@ -394,6 +395,22 @@
    				probe TOUCHSCREEN_SOURCE TOUCHSCREEN_ELAN9004
    			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" = "100"
+				register "generic.reset_off_delay_ms" = "2"
+				register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)"
+				register "generic.enable_delay_ms" = "6"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x01"
+				device i2c 41 on
+					probe TOUCHSCREEN_SOURCE TOUCHSCREEN_ILIT2901
+				end
+			end
    		chip drivers/generic/gpio_keys
    			register "name" = ""PENH""
    			register "gpio" = "ACPI_GPIO_INPUT_ACTIVE_LOW(GPP_F13)"