Commit 3343f861 authored Jul 07, 2020 by Fenglin Wu

input: qcom-hv-haptics: clear HW faults before enabling play



If there was any HW fault generated in previous playing, it would
be retained until writing the FAULT_CLR register. Clear the HW faults
before triggering play to make sure it won't be started with any
retained fault status.

Change-Id: Ibac0e1ed3c745efeb5048845a073605642d8407d
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>

parent 4027c201

drivers/input/misc/qcom-hv-haptics.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -891,6 +891,15 @@ static int haptics_enable_play(struct haptics_chip *chip, bool en)
		int rc;
		u8 val;

		if (en) {
		val = SC_CLR_BIT \| AUTO_RES_ERR_CLR_BIT \|
		HPWR_RDY_FAULT_CLR_BIT;
		rc = haptics_write(chip, chip->cfg_addr_base,
		HAP_CFG_FAULT_CLR_REG, &val, 1);
		if (rc < 0)
		return rc;
		}

		val = play->pattern_src;
		if (play->brake && !play->brake->disabled)
		val \|= BRAKE_EN_BIT;