Input: atkbd - add keymap quirk for Inventec Symphony systems

The Zepto 6615WD laptop (rebranded Inventec Symphony system) needs a
key release quirk for its volume keys to work. The attached patch adds
the quirk to the atkbd driver.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=460237

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/keyboard/atkbd.c

@@ -867,6 +867,22 @@ static void atkbd_hp_keymap_fixup(struct atkbd *atkbd)
 					atkbd->force_release_mask);
 }
 
+/*
+ * Inventec system with broken key release on volume keys
+ */
+static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
+{
+	const unsigned int forced_release_keys[] = {
+		0xae, 0xb0,
+	};
+	int i;
+
+	if (atkbd->set == 2)
+		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
+			__set_bit(forced_release_keys[i],
+				  atkbd->force_release_mask);
+}
+
 /*
  * atkbd_set_keycode_table() initializes keyboard's keycode table
  * according to the selected scancode set
@@ -1468,6 +1484,15 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
 		.callback = atkbd_setup_fixup,
 		.driver_data = atkbd_hp_keymap_fixup,
 	},
+	{
+		.ident = "Inventec Symphony",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
+		},
+		.callback = atkbd_setup_fixup,
+		.driver_data = atkbd_inventec_keymap_fixup,
+	},
 	{ }
 };