Input: synaptics-rmi4 - switch to reduced reporting mode (c5ccf2ad) · Commits · 戴 / test

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>

drivers/input/rmi4/rmi_f11.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -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:

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