Hi, On Thu, 2 Dec 2021 22:20:18 +1000 Alistair Francis <alistair@xxxxxxxxxxxxx> wrote: > From: Mylène Josserand <mylene.josserand@xxxxxxxxxxx> > > This is the basic driver for the Cypress TrueTouch Gen5 touchscreen > controllers. This driver supports only the I2C bus but it uses regmap > so SPI support could be added later. > The touchscreen can retrieve some defined zone that are handled as > buttons (according to the hardware). That is why it handles > button and multitouch events. > > Reviewed-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> > Signed-off-by: Mylène Josserand <mylene.josserand@xxxxxxxxxxx> > Message-Id: <20180703094309.18514-2-mylene.josserand@xxxxxxxxxxx> > Signed-off-by: Alistair Francis <alistair@xxxxxxxxxxxxx> I finally got it working. The order of initialisation is important. Params are copied on input_mt_init_slots() from ABS_MT* to ABS_*, so you have to set params first. Here is the patch i need on top of this one to make it actually work with X (evdev and libinput is tested): diff --git a/drivers/input/touchscreen/cyttsp5.c b/drivers/input/touchscreen/cyttsp5.c index b5d96eb71e46..3894ec85a732 100644 --- a/drivers/input/touchscreen/cyttsp5.c +++ b/drivers/input/touchscreen/cyttsp5.c @@ -415,19 +415,12 @@ static int cyttsp5_setup_input_device(struct device *dev) int max_x_tmp, max_y_tmp; int error; - __set_bit(EV_REL, ts->input->evbit); - max_x_tmp = si->sensing_conf_data.res_x; max_y_tmp = si->sensing_conf_data.res_y; max_x = max_x_tmp - 1; max_y = max_y_tmp - 1; max_p = si->sensing_conf_data.max_z; - error = input_mt_init_slots(ts->input, si->tch_abs[CY_TCH_T].max, - INPUT_MT_DROP_UNUSED | INPUT_MT_POINTER); - if (error < 0) - return error; - input_set_abs_params(ts->input, ABS_MT_POSITION_X, 0, max_x, 0, 0); input_set_abs_params(ts->input, ABS_MT_POSITION_Y, 0, max_y, 0, 0); input_set_abs_params(ts->input, ABS_MT_PRESSURE, 0, max_p, 0, 0); @@ -435,6 +428,11 @@ static int cyttsp5_setup_input_device(struct device *dev) input_set_abs_params(ts->input, ABS_MT_TOUCH_MAJOR, 0, MAX_AREA, 0, 0); input_set_abs_params(ts->input, ABS_MT_TOUCH_MINOR, 0, MAX_AREA, 0, 0); + error = input_mt_init_slots(ts->input, si->tch_abs[CY_TCH_T].max, + INPUT_MT_DROP_UNUSED | INPUT_MT_DIRECT); + if (error < 0) + return error; + error = input_register_device(ts->input); if (error < 0) dev_err(dev, "Error, failed register input device r=%d\n", error);
