Disable edge palm detection on Linux (Wayland with libinput)

no-edge-palm-detection.patch

diff '--color=auto' -ru a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
--- a/src/evdev-mt-touchpad.c	2024-11-19 05:41:39.000000000 +0200
+++ b/src/evdev-mt-touchpad.c	2025-01-15 07:22:32.516557264 +0200
@@ -3354,40 +3354,7 @@
 tp_init_palmdetect_edge(struct tp_dispatch *tp,
 			struct evdev_device *device)
 {
-	double width, height;
-	struct phys_coords mm = { 0.0, 0.0 };
-	struct device_coords edges;
-
-	if (device->tags & EVDEV_TAG_EXTERNAL_TOUCHPAD &&
-	    !tp_is_tpkb_combo_below(device))
-		return;
-
-	/* Edge palm detection hurts more than it helps on Apple touchpads. */
-	if (evdev_device_has_model_quirk(device, QUIRK_MODEL_APPLE_TOUCHPAD))
-		return;
-
-	evdev_device_get_size(device, &width, &height);
-
-	/* Enable edge palm detection on touchpads >= 70 mm. Anything
-	   smaller probably won't need it, until we find out it does */
-	if (width < 70.0)
-		return;
-
-	/* palm edges are 8% of the width on each side */
-	mm.x = min(8, width * 0.08);
-	edges = evdev_device_mm_to_units(device, &mm);
-	tp->palm.left_edge = edges.x;
-
-	mm.x = width - min(8, width * 0.08);
-	edges = evdev_device_mm_to_units(device, &mm);
-	tp->palm.right_edge = edges.x;
-
-	if (!tp->buttons.has_topbuttons && height > 55) {
-		/* top edge is 5% of the height */
-		mm.y = height * 0.05;
-		edges = evdev_device_mm_to_units(device, &mm);
-		tp->palm.upper_edge = edges.y;
-	}
+	// Do not perform edge palm detection
 }
 
 static int

This is a patch to libinput that attempts to disable the deadzone near the edges of the touchpad.