On Tue, 10 Jan 2023, Allen Ballway wrote: > Certain touchscreen devices, such as the ELAN9034, are oriented > incorrectly and report touches on opposite points on the X and Y axes. > For example, a 100x200 screen touched at (10,20) would report (90, 180) > and vice versa. > > This is fixed by adding device quirks to transform the touch points > into the correct spaces, from X -> MAX(X) - X, and Y -> MAX(Y) - Y. > > Signed-off-by: Allen Ballway <ballway@xxxxxxxxxxxx> > --- > V5 -> V6: Add another IS_ENABLED check for CONFIG_I2C_DMI_CORE because > the module may not be there at all. > > V4 -> V5: Add IS_ENABLED check for CONFIG_DMI to prevent linker error. > > V3 -> V4: Move quirk logic to i2c_hid_get_dmi_quirks and remove > duplicate quirks from hid-multitouch. > > V2 -> V3: Use existing HID_QUIRK_*_INVERT and match the quirk in > hid-quirk, passing down to hid-multitouch through the hid device. > > V1 -> V2: Address review comments, change to use DMI match. Confirmed > MT_TOOL_X/Y require transformation and update orientation based on > flipped axes. Appplied, thank you. -- Jiri Kosina SUSE Labs
