Change in coreboot[master]: mb/google/brya/var/kano: Add stylus probe

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/60389 )

Change subject: mb/google/brya/var/kano: Add stylus probe
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mb/google/brya/var/kano: Add stylus probe

Kano has non-stylus sku. Add a FW_CONFIG field to indicate
stylus presence and add a probe statement to the devicetree for the
corresponding device.

BUG=b:208179467
TEST=non-stylus doesn't register garage driver.

Signed-off-by: David Wu 
Change-Id: I24839c39280185a6d649a82dd9f025ee305c2eed
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60389
Tested-by: build bot (Jenkins) 
Reviewed-by: Tim Wawrzynczak 
---
M src/mainboard/google/brya/variants/kano/overridetree.cb
1 file changed, 7 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved

diff --git a/src/mainboard/google/brya/variants/kano/overridetree.cb b/src/mainboard/google/brya/variants/kano/overridetree.cb
index a7e4271..87148c5 100644
--- a/src/mainboard/google/brya/variants/kano/overridetree.cb
+++ b/src/mainboard/google/brya/variants/kano/overridetree.cb
@@ -11,6 +11,10 @@
    	option UFC_USB			0
    	option UFC_MIPI_OVTI2740	1
    end
+	field STYLUS 6
+		option STYLUS_ABSENT		0
+		option STYLUS_PRESENT		1
+	end
 end
 chip soc/intel/alderlake
    register "SaGv" = "SaGv_Enabled"
@@ -440,7 +444,9 @@
    			register "key.linux_code" = "SW_PEN_INSERTED"
    			register "key.linux_input_type" = "EV_SW"
    			register "key.label" = ""pen_eject""
-				device generic 0 on end
+				device generic 0 on
+					probe STYLUS STYLUS_PRESENT
+				end
    		end
    	end
    	device ref i2c5 on