From 625f24e6cd29ecb04e95010d9ec80a3171f941bb Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: May 17 2023 19:15:57 +0000
Subject: HID: wacom: Set a default resolution for older tablets

(bsc#1012628).

---

diff --git a/patches.kernel.org/6.3.3-209-HID-wacom-Set-a-default-resolution-for-older-ta.patch b/patches.kernel.org/6.3.3-209-HID-wacom-Set-a-default-resolution-for-older-ta.patch
new file mode 100644
index 0000000..88bf041
--- /dev/null
+++ b/patches.kernel.org/6.3.3-209-HID-wacom-Set-a-default-resolution-for-older-ta.patch
@@ -0,0 +1,54 @@
+From: Ping Cheng <pinglinux@gmail.com>
+Date: Sun, 9 Apr 2023 09:42:29 -0700
+Subject: [PATCH] HID: wacom: Set a default resolution for older tablets
+References: bsc#1012628
+Patch-mainline: 6.3.3
+Git-commit: 08a46b4190d345544d04ce4fe2e1844b772b8535
+
+commit 08a46b4190d345544d04ce4fe2e1844b772b8535 upstream.
+
+Some older tablets may not report physical maximum for X/Y
+coordinates. Set a default to prevent undefined resolution.
+
+Signed-off-by: Ping Cheng <ping.cheng@wacom.com>
+Link: https://lore.kernel.org/r/20230409164229.29777-1-ping.cheng@wacom.com
+Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Jiri Slaby <jslaby@suse.cz>
+---
+ drivers/hid/wacom_wac.c | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
+index 9312d611..e499b447 100644
+--- a/drivers/hid/wacom_wac.c
++++ b/drivers/hid/wacom_wac.c
+@@ -1895,6 +1895,7 @@ static void wacom_map_usage(struct input_dev *input, struct hid_usage *usage,
+ 	int fmax = field->logical_maximum;
+ 	unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
+ 	int resolution_code = code;
++	int resolution = hidinput_calc_abs_res(field, resolution_code);
+ 
+ 	if (equivalent_usage == HID_DG_TWIST) {
+ 		resolution_code = ABS_RZ;
+@@ -1915,8 +1916,15 @@ static void wacom_map_usage(struct input_dev *input, struct hid_usage *usage,
+ 	switch (type) {
+ 	case EV_ABS:
+ 		input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
+-		input_abs_set_res(input, code,
+-				  hidinput_calc_abs_res(field, resolution_code));
++
++		/* older tablet may miss physical usage */
++		if ((code == ABS_X || code == ABS_Y) && !resolution) {
++			resolution = WACOM_INTUOS_RES;
++			hid_warn(input,
++				 "Wacom usage (%d) missing resolution \n",
++				 code);
++		}
++		input_abs_set_res(input, code, resolution);
+ 		break;
+ 	case EV_KEY:
+ 	case EV_MSC:
+-- 
+2.35.3
+
diff --git a/series.conf b/series.conf
index 81706f5..832de71 100644
--- a/series.conf
+++ b/series.conf
@@ -942,6 +942,7 @@
 	patches.kernel.org/6.3.3-206-drm-amdgpu-disable-sdma-ecc-irq-only-when-sdma-.patch
 	patches.kernel.org/6.3.3-207-drm-amd-pm-avoid-potential-UBSAN-issue-on-legac.patch
 	patches.kernel.org/6.3.3-208-firewire-net-fix-unexpected-release-of-object-f.patch
+	patches.kernel.org/6.3.3-209-HID-wacom-Set-a-default-resolution-for-older-ta.patch
 
 	########################################################
 	# Build fixes that apply to the vanilla kernel too.