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Input: synaptics-rmi4 - switch to reduced reporting mode

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When the distance thresholds are set the controller must be in reduced
reporting mode for them to have any effect on the interrupt generation.
This has a potentially large impact on the number of events the host
needs to process.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Link: https://lore.kernel.org/r/20200120111628.18376-1-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Lucas Stach 2020-01-31 17:38:19 -08:00 committed by Dmitry Torokhov
parent f61023dfb6
commit c5ccf2ad3d
1 changed files with 14 additions and 0 deletions
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14
drivers/input/rmi4/rmi_f11.c
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@ -412,6 +412,10 @@ struct f11_2d_sensor_queries {
/* Defs for Ctrl0. */
#define RMI_F11_REPORT_MODE_MASK 0x07
#define RMI_F11_REPORT_MODE_CONTINUOUS (0 << 0)
#define RMI_F11_REPORT_MODE_REDUCED (1 << 0)
#define RMI_F11_REPORT_MODE_FS_CHANGE (2 << 0)
#define RMI_F11_REPORT_MODE_FP_CHANGE (3 << 0)
#define RMI_F11_ABS_POS_FILT (1 << 3)
#define RMI_F11_REL_POS_FILT (1 << 4)
#define RMI_F11_REL_BALLISTICS (1 << 5)
@ -1195,6 +1199,16 @@ static int rmi_f11_initialize(struct rmi_function *fn)
ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] =
sensor->axis_align.delta_y_threshold;
/*
* If distance threshold values are set, switch to reduced reporting
* mode so they actually get used by the controller.
*/
if (ctrl->ctrl0_11[RMI_F11_DELTA_X_THRESHOLD] ||
ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD]) {
ctrl->ctrl0_11[0] &= ~RMI_F11_REPORT_MODE_MASK;
ctrl->ctrl0_11[0] |= RMI_F11_REPORT_MODE_REDUCED;
}
if (f11->sens_query.has_dribble) {
switch (sensor->dribble) {
case RMI_REG_STATE_OFF: