The Synaptics touchpads are now either using i2c-hid or rmi-smbus. Warn the users if they are missing the rmi-smbus modules and have no chance of reporting correct data.
Signed-off-by: Benjamin Tissoires <[email protected]> --- drivers/input/mouse/synaptics.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 58ff388..fc42259 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -1814,6 +1814,10 @@ int synaptics_init(struct psmouse *psmouse) } if (SYN_CAP_INTERTOUCH(info.ext_cap_0c)) { +#if !IS_ENABLED(CONFIG_RMI4_SMB) || !defined(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS) + psmouse_warn(psmouse, "The touchpad can support a better bus than the too old PS/2 protocol.\n" + "Make sure MOUSE_PS2_SYNAPTICS_SMBUS and RMI4_SMB are enabled to get a better touchpad experience.\n"); +#endif error = synaptics_setup_intertouch(psmouse, &info, true); if (!error) return PSMOUSE_SYNAPTICS_SMBUS; -- 2.9.4
